/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/elevator_spec3_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 22:39:52,632 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 22:39:52,696 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 22:39:52,699 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 22:39:52,700 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 22:39:52,720 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 22:39:52,720 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 22:39:52,720 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 22:39:52,721 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 22:39:52,723 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 22:39:52,724 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 22:39:52,724 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 22:39:52,724 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 22:39:52,725 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 22:39:52,725 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 22:39:52,725 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 22:39:52,725 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 22:39:52,726 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 22:39:52,726 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 22:39:52,726 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 22:39:52,726 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 22:39:52,726 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 22:39:52,726 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 22:39:52,727 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 22:39:52,727 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 22:39:52,727 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 22:39:52,727 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 22:39:52,727 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 22:39:52,727 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 22:39:52,728 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 22:39:52,728 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 22:39:52,728 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 22:39:52,729 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:39:52,729 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 22:39:52,729 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 22:39:52,729 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 22:39:52,729 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 22:39:52,729 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 22:39:52,729 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 22:39:52,729 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 22:39:52,729 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 22:39:52,730 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 22:39:52,730 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 22:39:52,730 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 22:39:52,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 22:39:52,932 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 22:39:52,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 22:39:52,934 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 22:39:52,935 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 22:39:52,935 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product32.cil.c [2023-12-15 22:39:53,874 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 22:39:54,164 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 22:39:54,165 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product32.cil.c [2023-12-15 22:39:54,183 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a8bcba94/d6dffed0959148ecbe8c53a1b4b619de/FLAG8f7b8db03 [2023-12-15 22:39:54,197 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a8bcba94/d6dffed0959148ecbe8c53a1b4b619de [2023-12-15 22:39:54,199 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 22:39:54,200 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 22:39:54,201 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 22:39:54,202 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 22:39:54,205 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 22:39:54,205 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:39:54" (1/1) ... [2023-12-15 22:39:54,206 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52d70f9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:39:54, skipping insertion in model container [2023-12-15 22:39:54,206 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:39:54" (1/1) ... [2023-12-15 22:39:54,264 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 22:39:54,397 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product32.cil.c[3233,3246] [2023-12-15 22:39:54,560 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:39:54,568 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 22:39:54,574 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [48] [2023-12-15 22:39:54,575 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [151] [2023-12-15 22:39:54,575 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [160] [2023-12-15 22:39:54,575 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [198] [2023-12-15 22:39:54,575 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [564] [2023-12-15 22:39:54,575 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [753] [2023-12-15 22:39:54,575 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [873] [2023-12-15 22:39:54,576 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1540] [2023-12-15 22:39:54,576 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1558] [2023-12-15 22:39:54,576 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1907] [2023-12-15 22:39:54,580 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product32.cil.c[3233,3246] [2023-12-15 22:39:54,638 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:39:54,677 INFO L206 MainTranslator]: Completed translation [2023-12-15 22:39:54,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:39:54 WrapperNode [2023-12-15 22:39:54,677 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 22:39:54,678 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 22:39:54,678 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 22:39:54,678 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 22:39:54,682 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:39:54" (1/1) ... [2023-12-15 22:39:54,709 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:39:54" (1/1) ... [2023-12-15 22:39:54,752 INFO L138 Inliner]: procedures = 97, calls = 361, calls flagged for inlining = 29, calls inlined = 25, statements flattened = 1009 [2023-12-15 22:39:54,752 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 22:39:54,753 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 22:39:54,753 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 22:39:54,753 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 22:39:54,760 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:39:54" (1/1) ... [2023-12-15 22:39:54,760 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:39:54" (1/1) ... [2023-12-15 22:39:54,763 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:39:54" (1/1) ... [2023-12-15 22:39:54,778 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2023-12-15 22:39:54,779 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:39:54" (1/1) ... [2023-12-15 22:39:54,779 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:39:54" (1/1) ... [2023-12-15 22:39:54,789 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:39:54" (1/1) ... [2023-12-15 22:39:54,796 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:39:54" (1/1) ... [2023-12-15 22:39:54,800 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:39:54" (1/1) ... [2023-12-15 22:39:54,803 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:39:54" (1/1) ... [2023-12-15 22:39:54,821 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 22:39:54,822 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 22:39:54,822 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 22:39:54,822 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 22:39:54,833 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:39:54" (1/1) ... [2023-12-15 22:39:54,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:39:54,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:39:54,856 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) [2023-12-15 22:39:54,866 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 [2023-12-15 22:39:54,883 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2023-12-15 22:39:54,883 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2023-12-15 22:39:54,883 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-15 22:39:54,883 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-15 22:39:54,884 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-15 22:39:54,884 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-15 22:39:54,884 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2023-12-15 22:39:54,884 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2023-12-15 22:39:54,884 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-15 22:39:54,884 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-15 22:39:54,884 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-15 22:39:54,884 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-15 22:39:54,884 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-15 22:39:54,884 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-15 22:39:54,885 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-12-15 22:39:54,885 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-12-15 22:39:54,885 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-12-15 22:39:54,886 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-12-15 22:39:54,887 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-15 22:39:54,887 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-15 22:39:54,887 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-15 22:39:54,888 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-15 22:39:54,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 22:39:54,888 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2023-12-15 22:39:54,888 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2023-12-15 22:39:54,888 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-15 22:39:54,888 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-15 22:39:54,888 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-12-15 22:39:54,888 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-12-15 22:39:54,888 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-12-15 22:39:54,888 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-12-15 22:39:54,888 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-15 22:39:54,888 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-15 22:39:54,888 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-15 22:39:54,888 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-15 22:39:54,888 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-15 22:39:54,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-15 22:39:54,889 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-15 22:39:54,889 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-15 22:39:54,889 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2023-12-15 22:39:54,889 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2023-12-15 22:39:54,889 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-15 22:39:54,889 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-15 22:39:54,889 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2023-12-15 22:39:54,889 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2023-12-15 22:39:54,889 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-15 22:39:54,889 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-15 22:39:54,890 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-15 22:39:54,890 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-15 22:39:54,890 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-15 22:39:54,890 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-15 22:39:54,890 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-15 22:39:54,890 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-15 22:39:54,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 22:39:54,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-15 22:39:54,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-15 22:39:54,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-15 22:39:54,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-15 22:39:54,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-15 22:39:54,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-15 22:39:54,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-15 22:39:54,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-15 22:39:54,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-15 22:39:54,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-15 22:39:54,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-15 22:39:54,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-15 22:39:54,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-15 22:39:54,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-12-15 22:39:54,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-12-15 22:39:54,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-12-15 22:39:54,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-12-15 22:39:54,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-12-15 22:39:54,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-12-15 22:39:54,892 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-15 22:39:54,892 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-15 22:39:54,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 22:39:54,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 22:39:54,893 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-15 22:39:54,893 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-15 22:39:54,893 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2023-12-15 22:39:54,893 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2023-12-15 22:39:55,065 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 22:39:55,067 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 22:39:55,808 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 22:39:55,870 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 22:39:55,870 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 22:39:55,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:39:55 BoogieIcfgContainer [2023-12-15 22:39:55,871 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 22:39:55,872 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 22:39:55,872 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 22:39:55,874 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 22:39:55,874 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:39:54" (1/3) ... [2023-12-15 22:39:55,875 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cda38d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:39:55, skipping insertion in model container [2023-12-15 22:39:55,875 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:39:54" (2/3) ... [2023-12-15 22:39:55,876 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cda38d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:39:55, skipping insertion in model container [2023-12-15 22:39:55,876 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:39:55" (3/3) ... [2023-12-15 22:39:55,877 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product32.cil.c [2023-12-15 22:39:55,888 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 22:39:55,888 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 22:39:55,947 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 22:39:55,953 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;@5ca1938c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 22:39:55,953 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 22:39:55,960 INFO L276 IsEmpty]: Start isEmpty. Operand has 606 states, 460 states have (on average 1.6934782608695653) internal successors, (779), 480 states have internal predecessors, (779), 115 states have call successors, (115), 29 states have call predecessors, (115), 29 states have return successors, (115), 111 states have call predecessors, (115), 115 states have call successors, (115) [2023-12-15 22:39:55,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-15 22:39:55,977 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:39:55,977 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-15 22:39:55,978 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:39:55,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:39:55,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1753564149, now seen corresponding path program 1 times [2023-12-15 22:39:55,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:39:55,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450733610] [2023-12-15 22:39:55,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:39:55,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:39:56,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:39:56,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:39:56,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:39:56,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:39:56,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:39:56,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 22:39:56,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:39:56,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:39:56,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:39:56,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:39:56,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:39:57,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-15 22:39:57,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:39:57,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-15 22:39:57,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:39:57,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-15 22:39:57,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:39:57,035 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-15 22:39:57,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:39:57,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450733610] [2023-12-15 22:39:57,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450733610] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:39:57,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:39:57,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 22:39:57,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023054099] [2023-12-15 22:39:57,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:39:57,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 22:39:57,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:39:57,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 22:39:57,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:39:57,071 INFO L87 Difference]: Start difference. First operand has 606 states, 460 states have (on average 1.6934782608695653) internal successors, (779), 480 states have internal predecessors, (779), 115 states have call successors, (115), 29 states have call predecessors, (115), 29 states have return successors, (115), 111 states have call predecessors, (115), 115 states have call successors, (115) Second operand has 9 states, 8 states have (on average 4.625) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-15 22:40:03,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:40:03,576 INFO L93 Difference]: Finished difference Result 1487 states and 2573 transitions. [2023-12-15 22:40:03,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-15 22:40:03,586 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.625) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 56 [2023-12-15 22:40:03,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:40:03,611 INFO L225 Difference]: With dead ends: 1487 [2023-12-15 22:40:03,611 INFO L226 Difference]: Without dead ends: 882 [2023-12-15 22:40:03,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-12-15 22:40:03,622 INFO L413 NwaCegarLoop]: 453 mSDtfsCounter, 968 mSDsluCounter, 2249 mSDsCounter, 0 mSdLazyCounter, 5586 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1084 SdHoareTripleChecker+Valid, 2702 SdHoareTripleChecker+Invalid, 5778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 5586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:40:03,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1084 Valid, 2702 Invalid, 5778 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [192 Valid, 5586 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-12-15 22:40:03,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2023-12-15 22:40:03,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 612. [2023-12-15 22:40:03,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 466 states have (on average 1.6802575107296138) internal successors, (783), 486 states have internal predecessors, (783), 116 states have call successors, (116), 29 states have call predecessors, (116), 29 states have return successors, (115), 110 states have call predecessors, (115), 113 states have call successors, (115) [2023-12-15 22:40:03,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 1014 transitions. [2023-12-15 22:40:03,792 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 1014 transitions. Word has length 56 [2023-12-15 22:40:03,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:40:03,792 INFO L495 AbstractCegarLoop]: Abstraction has 612 states and 1014 transitions. [2023-12-15 22:40:03,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.625) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-15 22:40:03,792 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 1014 transitions. [2023-12-15 22:40:03,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-15 22:40:03,799 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:40:03,799 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-15 22:40:03,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 22:40:03,800 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:40:03,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:40:03,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1869492017, now seen corresponding path program 1 times [2023-12-15 22:40:03,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:40:03,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64096334] [2023-12-15 22:40:03,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:03,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:40:03,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:04,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:40:04,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:04,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:04,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:04,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 22:40:04,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:04,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:04,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:04,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:40:04,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:04,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-15 22:40:04,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:04,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 22:40:04,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:04,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-15 22:40:04,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:04,250 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-15 22:40:04,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:40:04,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64096334] [2023-12-15 22:40:04,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64096334] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:40:04,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:40:04,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:40:04,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938640068] [2023-12-15 22:40:04,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:40:04,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:40:04,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:40:04,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:40:04,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:40:04,256 INFO L87 Difference]: Start difference. First operand 612 states and 1014 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, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:40:08,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:40:08,603 INFO L93 Difference]: Finished difference Result 1478 states and 2526 transitions. [2023-12-15 22:40:08,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 22:40:08,604 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, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 57 [2023-12-15 22:40:08,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:40:08,622 INFO L225 Difference]: With dead ends: 1478 [2023-12-15 22:40:08,622 INFO L226 Difference]: Without dead ends: 847 [2023-12-15 22:40:08,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-15 22:40:08,625 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 1496 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 2805 mSolverCounterSat, 431 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1611 SdHoareTripleChecker+Valid, 1184 SdHoareTripleChecker+Invalid, 3236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 431 IncrementalHoareTripleChecker+Valid, 2805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-12-15 22:40:08,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1611 Valid, 1184 Invalid, 3236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [431 Valid, 2805 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-12-15 22:40:08,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2023-12-15 22:40:08,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 589. [2023-12-15 22:40:08,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 446 states have (on average 1.6704035874439462) internal successors, (745), 464 states have internal predecessors, (745), 115 states have call successors, (115), 29 states have call predecessors, (115), 27 states have return successors, (112), 109 states have call predecessors, (112), 112 states have call successors, (112) [2023-12-15 22:40:08,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 972 transitions. [2023-12-15 22:40:08,715 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 972 transitions. Word has length 57 [2023-12-15 22:40:08,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:40:08,715 INFO L495 AbstractCegarLoop]: Abstraction has 589 states and 972 transitions. [2023-12-15 22:40:08,715 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, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:40:08,715 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 972 transitions. [2023-12-15 22:40:08,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-15 22:40:08,716 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:40:08,717 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-15 22:40:08,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 22:40:08,717 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:40:08,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:40:08,717 INFO L85 PathProgramCache]: Analyzing trace with hash -242637117, now seen corresponding path program 1 times [2023-12-15 22:40:08,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:40:08,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80430926] [2023-12-15 22:40:08,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:08,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:40:08,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:09,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:40:09,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:09,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:09,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:09,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 22:40:09,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:09,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:09,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:09,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:40:09,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:09,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-15 22:40:09,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:09,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 22:40:09,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:09,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-15 22:40:09,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:09,234 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-15 22:40:09,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:40:09,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80430926] [2023-12-15 22:40:09,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80430926] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:40:09,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:40:09,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:40:09,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712154286] [2023-12-15 22:40:09,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:40:09,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:40:09,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:40:09,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:40:09,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:40:09,237 INFO L87 Difference]: Start difference. First operand 589 states and 972 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, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:40:13,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:40:13,536 INFO L93 Difference]: Finished difference Result 1426 states and 2435 transitions. [2023-12-15 22:40:13,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 22:40:13,537 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, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 57 [2023-12-15 22:40:13,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:40:13,542 INFO L225 Difference]: With dead ends: 1426 [2023-12-15 22:40:13,542 INFO L226 Difference]: Without dead ends: 847 [2023-12-15 22:40:13,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:40:13,548 INFO L413 NwaCegarLoop]: 355 mSDtfsCounter, 898 mSDsluCounter, 808 mSDsCounter, 0 mSdLazyCounter, 2837 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1013 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 3037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 2837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-12-15 22:40:13,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1013 Valid, 1163 Invalid, 3037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 2837 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-12-15 22:40:13,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2023-12-15 22:40:13,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 589. [2023-12-15 22:40:13,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 446 states have (on average 1.6681614349775784) internal successors, (744), 464 states have internal predecessors, (744), 115 states have call successors, (115), 29 states have call predecessors, (115), 27 states have return successors, (112), 109 states have call predecessors, (112), 112 states have call successors, (112) [2023-12-15 22:40:13,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 971 transitions. [2023-12-15 22:40:13,616 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 971 transitions. Word has length 57 [2023-12-15 22:40:13,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:40:13,616 INFO L495 AbstractCegarLoop]: Abstraction has 589 states and 971 transitions. [2023-12-15 22:40:13,617 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, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:40:13,617 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 971 transitions. [2023-12-15 22:40:13,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-15 22:40:13,617 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:40:13,618 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-15 22:40:13,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 22:40:13,618 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:40:13,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:40:13,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1954740673, now seen corresponding path program 1 times [2023-12-15 22:40:13,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:40:13,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943704185] [2023-12-15 22:40:13,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:13,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:40:13,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:13,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:40:13,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:14,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:14,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:14,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 22:40:14,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:14,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:14,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:14,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:40:14,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:14,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 22:40:14,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:14,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:40:14,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:14,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-15 22:40:14,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:14,123 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-15 22:40:14,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:40:14,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943704185] [2023-12-15 22:40:14,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943704185] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:40:14,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:40:14,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 22:40:14,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930661786] [2023-12-15 22:40:14,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:40:14,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 22:40:14,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:40:14,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 22:40:14,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:40:14,124 INFO L87 Difference]: Start difference. First operand 589 states and 971 transitions. Second operand has 9 states, 8 states have (on average 4.875) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-15 22:40:19,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:40:19,627 INFO L93 Difference]: Finished difference Result 1442 states and 2455 transitions. [2023-12-15 22:40:19,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-15 22:40:19,628 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 58 [2023-12-15 22:40:19,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:40:19,632 INFO L225 Difference]: With dead ends: 1442 [2023-12-15 22:40:19,632 INFO L226 Difference]: Without dead ends: 841 [2023-12-15 22:40:19,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-12-15 22:40:19,635 INFO L413 NwaCegarLoop]: 411 mSDtfsCounter, 921 mSDsluCounter, 2027 mSDsCounter, 0 mSdLazyCounter, 5404 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1036 SdHoareTripleChecker+Valid, 2438 SdHoareTripleChecker+Invalid, 5598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 5404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-12-15 22:40:19,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1036 Valid, 2438 Invalid, 5598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 5404 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-12-15 22:40:19,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2023-12-15 22:40:19,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 583. [2023-12-15 22:40:19,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 440 states have (on average 1.6613636363636364) internal successors, (731), 458 states have internal predecessors, (731), 115 states have call successors, (115), 29 states have call predecessors, (115), 27 states have return successors, (112), 109 states have call predecessors, (112), 112 states have call successors, (112) [2023-12-15 22:40:19,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 958 transitions. [2023-12-15 22:40:19,692 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 958 transitions. Word has length 58 [2023-12-15 22:40:19,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:40:19,692 INFO L495 AbstractCegarLoop]: Abstraction has 583 states and 958 transitions. [2023-12-15 22:40:19,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-15 22:40:19,692 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 958 transitions. [2023-12-15 22:40:19,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-15 22:40:19,693 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:40:19,693 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-15 22:40:19,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 22:40:19,693 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:40:19,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:40:19,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1628823835, now seen corresponding path program 1 times [2023-12-15 22:40:19,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:40:19,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190301803] [2023-12-15 22:40:19,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:19,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:40:19,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:20,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:40:20,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:20,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:20,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:20,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 22:40:20,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:20,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:20,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:20,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:40:20,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:20,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-15 22:40:20,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:20,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-15 22:40:20,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:20,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 22:40:20,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:20,210 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-15 22:40:20,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:40:20,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190301803] [2023-12-15 22:40:20,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190301803] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:40:20,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:40:20,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:40:20,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285451339] [2023-12-15 22:40:20,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:40:20,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:40:20,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:40:20,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:40:20,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:40:20,213 INFO L87 Difference]: Start difference. First operand 583 states and 958 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, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:40:24,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:40:24,666 INFO L93 Difference]: Finished difference Result 1414 states and 2406 transitions. [2023-12-15 22:40:24,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 22:40:24,666 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, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 59 [2023-12-15 22:40:24,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:40:24,671 INFO L225 Difference]: With dead ends: 1414 [2023-12-15 22:40:24,671 INFO L226 Difference]: Without dead ends: 841 [2023-12-15 22:40:24,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:40:24,673 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 874 mSDsluCounter, 963 mSDsCounter, 0 mSdLazyCounter, 2844 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 989 SdHoareTripleChecker+Valid, 1394 SdHoareTripleChecker+Invalid, 3032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 2844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-12-15 22:40:24,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [989 Valid, 1394 Invalid, 3032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 2844 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-12-15 22:40:24,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2023-12-15 22:40:24,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 583. [2023-12-15 22:40:24,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 440 states have (on average 1.6590909090909092) internal successors, (730), 458 states have internal predecessors, (730), 115 states have call successors, (115), 29 states have call predecessors, (115), 27 states have return successors, (112), 109 states have call predecessors, (112), 112 states have call successors, (112) [2023-12-15 22:40:24,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 957 transitions. [2023-12-15 22:40:24,732 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 957 transitions. Word has length 59 [2023-12-15 22:40:24,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:40:24,732 INFO L495 AbstractCegarLoop]: Abstraction has 583 states and 957 transitions. [2023-12-15 22:40:24,732 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, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:40:24,732 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 957 transitions. [2023-12-15 22:40:24,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-15 22:40:24,733 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:40:24,733 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-15 22:40:24,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 22:40:24,733 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:40:24,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:40:24,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1058466690, now seen corresponding path program 1 times [2023-12-15 22:40:24,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:40:24,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159750685] [2023-12-15 22:40:24,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:24,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:40:24,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:25,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:40:25,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:25,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:25,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:25,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 22:40:25,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:25,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:25,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:25,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:40:25,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:25,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-15 22:40:25,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:25,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-15 22:40:25,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:25,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 22:40:25,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:25,230 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-15 22:40:25,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:40:25,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159750685] [2023-12-15 22:40:25,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159750685] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:40:25,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:40:25,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 22:40:25,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705013110] [2023-12-15 22:40:25,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:40:25,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 22:40:25,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:40:25,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 22:40:25,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:40:25,231 INFO L87 Difference]: Start difference. First operand 583 states and 957 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, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-15 22:40:31,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:40:31,120 INFO L93 Difference]: Finished difference Result 1430 states and 2424 transitions. [2023-12-15 22:40:31,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-15 22:40:31,120 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, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 60 [2023-12-15 22:40:31,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:40:31,124 INFO L225 Difference]: With dead ends: 1430 [2023-12-15 22:40:31,124 INFO L226 Difference]: Without dead ends: 835 [2023-12-15 22:40:31,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-12-15 22:40:31,127 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 905 mSDsluCounter, 2107 mSDsCounter, 0 mSdLazyCounter, 5349 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1020 SdHoareTripleChecker+Valid, 2538 SdHoareTripleChecker+Invalid, 5538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 5349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-12-15 22:40:31,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1020 Valid, 2538 Invalid, 5538 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [189 Valid, 5349 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-12-15 22:40:31,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2023-12-15 22:40:31,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 577. [2023-12-15 22:40:31,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 434 states have (on average 1.652073732718894) internal successors, (717), 452 states have internal predecessors, (717), 115 states have call successors, (115), 29 states have call predecessors, (115), 27 states have return successors, (112), 109 states have call predecessors, (112), 112 states have call successors, (112) [2023-12-15 22:40:31,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 944 transitions. [2023-12-15 22:40:31,218 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 944 transitions. Word has length 60 [2023-12-15 22:40:31,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:40:31,218 INFO L495 AbstractCegarLoop]: Abstraction has 577 states and 944 transitions. [2023-12-15 22:40:31,218 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, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-15 22:40:31,218 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 944 transitions. [2023-12-15 22:40:31,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-15 22:40:31,218 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:40:31,218 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-15 22:40:31,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 22:40:31,219 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:40:31,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:40:31,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1041316327, now seen corresponding path program 1 times [2023-12-15 22:40:31,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:40:31,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646211826] [2023-12-15 22:40:31,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:31,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:40:31,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:31,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:40:31,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:31,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:31,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:31,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 22:40:31,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:31,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:31,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:31,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:40:31,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:31,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 22:40:31,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:31,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-15 22:40:31,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:31,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-15 22:40:31,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:31,643 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-15 22:40:31,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:40:31,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646211826] [2023-12-15 22:40:31,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646211826] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:40:31,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:40:31,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:40:31,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162159621] [2023-12-15 22:40:31,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:40:31,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:40:31,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:40:31,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:40:31,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:40:31,644 INFO L87 Difference]: Start difference. First operand 577 states and 944 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, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:40:35,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:40:35,744 INFO L93 Difference]: Finished difference Result 1402 states and 2377 transitions. [2023-12-15 22:40:35,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 22:40:35,745 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, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 61 [2023-12-15 22:40:35,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:40:35,749 INFO L225 Difference]: With dead ends: 1402 [2023-12-15 22:40:35,749 INFO L226 Difference]: Without dead ends: 835 [2023-12-15 22:40:35,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:40:35,752 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 863 mSDsluCounter, 955 mSDsCounter, 0 mSdLazyCounter, 2797 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 1384 SdHoareTripleChecker+Invalid, 2985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 2797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-12-15 22:40:35,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [978 Valid, 1384 Invalid, 2985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 2797 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-12-15 22:40:35,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2023-12-15 22:40:35,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 577. [2023-12-15 22:40:35,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 434 states have (on average 1.6497695852534562) internal successors, (716), 452 states have internal predecessors, (716), 115 states have call successors, (115), 29 states have call predecessors, (115), 27 states have return successors, (112), 109 states have call predecessors, (112), 112 states have call successors, (112) [2023-12-15 22:40:35,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 943 transitions. [2023-12-15 22:40:35,810 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 943 transitions. Word has length 61 [2023-12-15 22:40:35,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:40:35,810 INFO L495 AbstractCegarLoop]: Abstraction has 577 states and 943 transitions. [2023-12-15 22:40:35,810 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, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:40:35,810 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 943 transitions. [2023-12-15 22:40:35,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-15 22:40:35,811 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:40:35,811 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-15 22:40:35,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 22:40:35,811 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:40:35,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:40:35,811 INFO L85 PathProgramCache]: Analyzing trace with hash 720992991, now seen corresponding path program 1 times [2023-12-15 22:40:35,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:40:35,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343590221] [2023-12-15 22:40:35,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:35,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:40:35,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:36,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:40:36,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:36,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:36,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:36,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 22:40:36,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:36,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:36,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:36,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:40:36,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:36,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:40:36,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:36,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-15 22:40:36,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:36,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-15 22:40:36,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:36,256 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-15 22:40:36,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:40:36,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343590221] [2023-12-15 22:40:36,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343590221] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:40:36,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:40:36,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:40:36,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426566412] [2023-12-15 22:40:36,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:40:36,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:40:36,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:40:36,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:40:36,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:40:36,258 INFO L87 Difference]: Start difference. First operand 577 states and 943 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, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:40:40,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:40:40,320 INFO L93 Difference]: Finished difference Result 1419 states and 2395 transitions. [2023-12-15 22:40:40,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 22:40:40,320 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, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2023-12-15 22:40:40,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:40:40,324 INFO L225 Difference]: With dead ends: 1419 [2023-12-15 22:40:40,324 INFO L226 Difference]: Without dead ends: 852 [2023-12-15 22:40:40,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:40:40,326 INFO L413 NwaCegarLoop]: 414 mSDtfsCounter, 1449 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 2666 mSolverCounterSat, 417 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1564 SdHoareTripleChecker+Valid, 1309 SdHoareTripleChecker+Invalid, 3083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 417 IncrementalHoareTripleChecker+Valid, 2666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-15 22:40:40,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1564 Valid, 1309 Invalid, 3083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [417 Valid, 2666 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-15 22:40:40,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2023-12-15 22:40:40,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 582. [2023-12-15 22:40:40,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 439 states have (on average 1.642369020501139) internal successors, (721), 457 states have internal predecessors, (721), 115 states have call successors, (115), 29 states have call predecessors, (115), 27 states have return successors, (112), 109 states have call predecessors, (112), 112 states have call successors, (112) [2023-12-15 22:40:40,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 948 transitions. [2023-12-15 22:40:40,386 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 948 transitions. Word has length 62 [2023-12-15 22:40:40,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:40:40,387 INFO L495 AbstractCegarLoop]: Abstraction has 582 states and 948 transitions. [2023-12-15 22:40:40,387 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, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:40:40,387 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 948 transitions. [2023-12-15 22:40:40,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-15 22:40:40,387 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:40:40,387 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-15 22:40:40,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 22:40:40,388 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:40:40,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:40:40,388 INFO L85 PathProgramCache]: Analyzing trace with hash 501067614, now seen corresponding path program 1 times [2023-12-15 22:40:40,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:40:40,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084309802] [2023-12-15 22:40:40,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:40,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:40:40,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:40,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:40:40,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:40,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:40,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:40,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 22:40:40,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:40,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:40,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:40,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:40:40,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:40,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:40:40,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:40,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-15 22:40:40,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:40,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-15 22:40:40,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:40,850 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-15 22:40:40,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:40:40,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084309802] [2023-12-15 22:40:40,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084309802] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:40:40,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:40:40,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 22:40:40,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761284472] [2023-12-15 22:40:40,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:40:40,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 22:40:40,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:40:40,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 22:40:40,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:40:40,852 INFO L87 Difference]: Start difference. First operand 582 states and 948 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-15 22:40:46,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:40:46,001 INFO L93 Difference]: Finished difference Result 1423 states and 2396 transitions. [2023-12-15 22:40:46,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-15 22:40:46,001 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 62 [2023-12-15 22:40:46,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:40:46,005 INFO L225 Difference]: With dead ends: 1423 [2023-12-15 22:40:46,005 INFO L226 Difference]: Without dead ends: 829 [2023-12-15 22:40:46,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-12-15 22:40:46,008 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 1452 mSDsluCounter, 1907 mSDsCounter, 0 mSdLazyCounter, 5048 mSolverCounterSat, 428 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1567 SdHoareTripleChecker+Valid, 2298 SdHoareTripleChecker+Invalid, 5476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 428 IncrementalHoareTripleChecker+Valid, 5048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:40:46,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1567 Valid, 2298 Invalid, 5476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [428 Valid, 5048 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-12-15 22:40:46,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 829 states. [2023-12-15 22:40:46,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 829 to 571. [2023-12-15 22:40:46,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 428 states have (on average 1.6401869158878504) internal successors, (702), 446 states have internal predecessors, (702), 115 states have call successors, (115), 29 states have call predecessors, (115), 27 states have return successors, (112), 109 states have call predecessors, (112), 112 states have call successors, (112) [2023-12-15 22:40:46,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 929 transitions. [2023-12-15 22:40:46,093 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 929 transitions. Word has length 62 [2023-12-15 22:40:46,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:40:46,093 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 929 transitions. [2023-12-15 22:40:46,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-15 22:40:46,093 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 929 transitions. [2023-12-15 22:40:46,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-15 22:40:46,096 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:40:46,096 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-15 22:40:46,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 22:40:46,096 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:40:46,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:40:46,096 INFO L85 PathProgramCache]: Analyzing trace with hash 350499700, now seen corresponding path program 1 times [2023-12-15 22:40:46,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:40:46,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180163129] [2023-12-15 22:40:46,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:46,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:40:46,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:46,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:40:46,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:46,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:46,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:46,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 22:40:46,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:46,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:46,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:46,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:40:46,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:46,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-15 22:40:46,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:46,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-15 22:40:46,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:46,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-15 22:40:46,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:46,518 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-15 22:40:46,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:40:46,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180163129] [2023-12-15 22:40:46,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180163129] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:40:46,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:40:46,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:40:46,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103657202] [2023-12-15 22:40:46,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:40:46,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:40:46,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:40:46,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:40:46,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:40:46,520 INFO L87 Difference]: Start difference. First operand 571 states and 929 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, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:40:50,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:40:50,741 INFO L93 Difference]: Finished difference Result 1399 states and 2355 transitions. [2023-12-15 22:40:50,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 22:40:50,742 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, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 63 [2023-12-15 22:40:50,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:40:50,746 INFO L225 Difference]: With dead ends: 1399 [2023-12-15 22:40:50,746 INFO L226 Difference]: Without dead ends: 838 [2023-12-15 22:40:50,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:40:50,749 INFO L413 NwaCegarLoop]: 360 mSDtfsCounter, 1416 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 2613 mSolverCounterSat, 435 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1531 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 3048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 435 IncrementalHoareTripleChecker+Valid, 2613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-15 22:40:50,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1531 Valid, 1163 Invalid, 3048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [435 Valid, 2613 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-15 22:40:50,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2023-12-15 22:40:50,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 577. [2023-12-15 22:40:50,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 434 states have (on average 1.631336405529954) internal successors, (708), 452 states have internal predecessors, (708), 115 states have call successors, (115), 29 states have call predecessors, (115), 27 states have return successors, (112), 109 states have call predecessors, (112), 112 states have call successors, (112) [2023-12-15 22:40:50,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 935 transitions. [2023-12-15 22:40:50,846 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 935 transitions. Word has length 63 [2023-12-15 22:40:50,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:40:50,847 INFO L495 AbstractCegarLoop]: Abstraction has 577 states and 935 transitions. [2023-12-15 22:40:50,847 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, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:40:50,847 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 935 transitions. [2023-12-15 22:40:50,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-15 22:40:50,848 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:40:50,848 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-15 22:40:50,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-15 22:40:50,848 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:40:50,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:40:50,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1893483598, now seen corresponding path program 1 times [2023-12-15 22:40:50,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:40:50,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330709596] [2023-12-15 22:40:50,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:50,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:40:50,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:51,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:40:51,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:51,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:51,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:51,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 22:40:51,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:51,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:51,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:51,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:40:51,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:51,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-15 22:40:51,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:51,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-15 22:40:51,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:51,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-15 22:40:51,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:51,352 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-15 22:40:51,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:40:51,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330709596] [2023-12-15 22:40:51,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330709596] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:40:51,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:40:51,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 22:40:51,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463886247] [2023-12-15 22:40:51,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:40:51,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 22:40:51,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:40:51,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 22:40:51,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:40:51,354 INFO L87 Difference]: Start difference. First operand 577 states and 935 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, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-15 22:40:56,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:40:56,347 INFO L93 Difference]: Finished difference Result 1404 states and 2358 transitions. [2023-12-15 22:40:56,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 22:40:56,347 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, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 63 [2023-12-15 22:40:56,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:40:56,351 INFO L225 Difference]: With dead ends: 1404 [2023-12-15 22:40:56,351 INFO L226 Difference]: Without dead ends: 829 [2023-12-15 22:40:56,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2023-12-15 22:40:56,353 INFO L413 NwaCegarLoop]: 393 mSDtfsCounter, 1408 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 4953 mSolverCounterSat, 422 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 2323 SdHoareTripleChecker+Invalid, 5375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 422 IncrementalHoareTripleChecker+Valid, 4953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-12-15 22:40:56,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1523 Valid, 2323 Invalid, 5375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [422 Valid, 4953 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-12-15 22:40:56,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 829 states. [2023-12-15 22:40:56,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 829 to 571. [2023-12-15 22:40:56,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 428 states have (on average 1.6378504672897196) internal successors, (701), 446 states have internal predecessors, (701), 115 states have call successors, (115), 29 states have call predecessors, (115), 27 states have return successors, (112), 109 states have call predecessors, (112), 112 states have call successors, (112) [2023-12-15 22:40:56,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 928 transitions. [2023-12-15 22:40:56,416 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 928 transitions. Word has length 63 [2023-12-15 22:40:56,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:40:56,416 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 928 transitions. [2023-12-15 22:40:56,416 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, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-15 22:40:56,416 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 928 transitions. [2023-12-15 22:40:56,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-15 22:40:56,417 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:40:56,417 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-15 22:40:56,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 22:40:56,417 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:40:56,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:40:56,417 INFO L85 PathProgramCache]: Analyzing trace with hash -427030279, now seen corresponding path program 1 times [2023-12-15 22:40:56,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:40:56,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057935885] [2023-12-15 22:40:56,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:56,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:40:56,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:56,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:40:56,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2023-12-15 22:40:56,770 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 [2023-12-15 22:40:56,822 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 22:40:56,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-15 22:40:56,823 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 65 with TraceHistMax 2,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-35-1 term,while SimplifyDDA2 was simplifying 35 xjuncts wrt. a ATOM-1 context. [2023-12-15 22:40:56,826 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:40:56,829 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 22:40:56,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:40:56 BoogieIcfgContainer [2023-12-15 22:40:56,831 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 22:40:56,833 INFO L158 Benchmark]: Toolchain (without parser) took 62634.02ms. Allocated memory was 281.0MB in the beginning and 650.1MB in the end (delta: 369.1MB). Free memory was 234.2MB in the beginning and 276.0MB in the end (delta: -41.7MB). Peak memory consumption was 328.3MB. Max. memory is 8.0GB. [2023-12-15 22:40:56,834 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 212.9MB. Free memory is still 162.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 22:40:56,834 INFO L158 Benchmark]: CACSL2BoogieTranslator took 475.92ms. Allocated memory is still 281.0MB. Free memory was 234.2MB in the beginning and 241.8MB in the end (delta: -7.6MB). Peak memory consumption was 53.2MB. Max. memory is 8.0GB. [2023-12-15 22:40:56,834 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.38ms. Allocated memory is still 281.0MB. Free memory was 241.8MB in the beginning and 236.0MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-15 22:40:56,834 INFO L158 Benchmark]: Boogie Preprocessor took 68.95ms. Allocated memory is still 281.0MB. Free memory was 236.0MB in the beginning and 227.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2023-12-15 22:40:56,835 INFO L158 Benchmark]: RCFGBuilder took 1048.87ms. Allocated memory is still 281.0MB. Free memory was 227.1MB in the beginning and 122.2MB in the end (delta: 104.9MB). Peak memory consumption was 104.9MB. Max. memory is 8.0GB. [2023-12-15 22:40:56,835 INFO L158 Benchmark]: TraceAbstraction took 60960.97ms. Allocated memory was 281.0MB in the beginning and 650.1MB in the end (delta: 369.1MB). Free memory was 121.7MB in the beginning and 276.0MB in the end (delta: -154.2MB). Peak memory consumption was 214.3MB. Max. memory is 8.0GB. [2023-12-15 22:40:56,836 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 212.9MB. Free memory is still 162.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 475.92ms. Allocated memory is still 281.0MB. Free memory was 234.2MB in the beginning and 241.8MB in the end (delta: -7.6MB). Peak memory consumption was 53.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 74.38ms. Allocated memory is still 281.0MB. Free memory was 241.8MB in the beginning and 236.0MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 68.95ms. Allocated memory is still 281.0MB. Free memory was 236.0MB in the beginning and 227.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * RCFGBuilder took 1048.87ms. Allocated memory is still 281.0MB. Free memory was 227.1MB in the beginning and 122.2MB in the end (delta: 104.9MB). Peak memory consumption was 104.9MB. Max. memory is 8.0GB. * TraceAbstraction took 60960.97ms. Allocated memory was 281.0MB in the beginning and 650.1MB in the end (delta: 369.1MB). Free memory was 121.7MB in the beginning and 276.0MB in the end (delta: -154.2MB). Peak memory consumption was 214.3MB. 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,"UnitTests.i","") [48] - GenericResultAtLocation [Line: 151]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [151] - GenericResultAtLocation [Line: 160]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [160] - GenericResultAtLocation [Line: 198]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [198] - GenericResultAtLocation [Line: 564]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [564] - GenericResultAtLocation [Line: 753]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [753] - GenericResultAtLocation [Line: 873]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [873] - GenericResultAtLocation [Line: 1540]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1540] - GenericResultAtLocation [Line: 1558]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1558] - GenericResultAtLocation [Line: 1907]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1907] * 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: 156]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 156). Cancelled while NwaCegarLoop was analyzing trace of length 65 with TraceHistMax 2,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-35-1 term,while SimplifyDDA2 was simplifying 35 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 30 procedures, 606 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 60.9s, OverallIterations: 12, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 53.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13916 SdHoareTripleChecker+Valid, 43.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12650 mSDsluCounter, 19896 SdHoareTripleChecker+Invalid, 39.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15459 mSDsCounter, 3284 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 42902 IncrementalHoareTripleChecker+Invalid, 46186 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3284 mSolverCounterUnsat, 4437 mSDtfsCounter, 42902 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 292 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 11.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=612occurred in iteration=1, InterpolantAutomatonStates: 107, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 11 MinimizatonAttempts, 2865 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 658 NumberOfCodeBlocks, 658 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 647 ConstructedInterpolants, 0 QuantifiedInterpolants, 5934 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 22/22 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