/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/elevator_spec2_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 22:38:02,642 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 22:38:02,695 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 22:38:02,700 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 22:38:02,700 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 22:38:02,722 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 22:38:02,723 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 22:38:02,723 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 22:38:02,723 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 22:38:02,724 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 22:38:02,724 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 22:38:02,724 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 22:38:02,725 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 22:38:02,725 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 22:38:02,725 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 22:38:02,725 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 22:38:02,726 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 22:38:02,726 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 22:38:02,726 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 22:38:02,726 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 22:38:02,727 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 22:38:02,731 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 22:38:02,731 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 22:38:02,731 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 22:38:02,734 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 22:38:02,734 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 22:38:02,735 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 22:38:02,735 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 22:38:02,736 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 22:38:02,736 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 22:38:02,737 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 22:38:02,737 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 22:38:02,737 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:38:02,737 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 22:38:02,737 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 22:38:02,737 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 22:38:02,738 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 22:38:02,738 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 22:38:02,738 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 22:38:02,738 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 22:38:02,738 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 22:38:02,738 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 22:38:02,738 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 22:38:02,739 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 22:38:02,926 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 22:38:02,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 22:38:02,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 22:38:02,949 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 22:38:02,950 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 22:38:02,950 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product31.cil.c [2023-12-15 22:38:03,939 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 22:38:04,163 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 22:38:04,164 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product31.cil.c [2023-12-15 22:38:04,178 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc55ae5ac/e78542ee5d874f8392d02b1dd8726c38/FLAGa2b7dc3ca [2023-12-15 22:38:04,187 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc55ae5ac/e78542ee5d874f8392d02b1dd8726c38 [2023-12-15 22:38:04,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 22:38:04,189 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 22:38:04,190 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 22:38:04,190 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 22:38:04,193 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 22:38:04,194 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:38:04" (1/1) ... [2023-12-15 22:38:04,194 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7826d91d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:38:04, skipping insertion in model container [2023-12-15 22:38:04,194 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:38:04" (1/1) ... [2023-12-15 22:38:04,251 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 22:38:04,570 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product31.cil.c[64450,64463] [2023-12-15 22:38:04,595 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:38:04,607 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 22:38:04,615 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [48] [2023-12-15 22:38:04,616 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [716] [2023-12-15 22:38:04,616 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [837] [2023-12-15 22:38:04,616 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [1024] [2023-12-15 22:38:04,617 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1121] [2023-12-15 22:38:04,617 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1476] [2023-12-15 22:38:04,617 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3091] [2023-12-15 22:38:04,617 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3126] [2023-12-15 22:38:04,617 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [3135] [2023-12-15 22:38:04,618 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [3501] [2023-12-15 22:38:04,683 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product31.cil.c[64450,64463] [2023-12-15 22:38:04,705 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:38:04,734 INFO L206 MainTranslator]: Completed translation [2023-12-15 22:38:04,736 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:38:04 WrapperNode [2023-12-15 22:38:04,736 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 22:38:04,737 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 22:38:04,737 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 22:38:04,737 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 22:38:04,741 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:38:04" (1/1) ... [2023-12-15 22:38:04,761 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:38:04" (1/1) ... [2023-12-15 22:38:04,808 INFO L138 Inliner]: procedures = 97, calls = 349, calls flagged for inlining = 28, calls inlined = 25, statements flattened = 965 [2023-12-15 22:38:04,809 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 22:38:04,809 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 22:38:04,809 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 22:38:04,809 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 22:38:04,817 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:38:04" (1/1) ... [2023-12-15 22:38:04,817 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:38:04" (1/1) ... [2023-12-15 22:38:04,823 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:38:04" (1/1) ... [2023-12-15 22:38:04,866 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2023-12-15 22:38:04,866 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:38:04" (1/1) ... [2023-12-15 22:38:04,867 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:38:04" (1/1) ... [2023-12-15 22:38:04,896 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:38:04" (1/1) ... [2023-12-15 22:38:04,904 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:38:04" (1/1) ... [2023-12-15 22:38:04,908 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:38:04" (1/1) ... [2023-12-15 22:38:04,911 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:38:04" (1/1) ... [2023-12-15 22:38:04,938 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 22:38:04,939 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 22:38:04,939 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 22:38:04,939 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 22:38:04,939 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:38:04" (1/1) ... [2023-12-15 22:38:04,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:38:04,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:38:04,993 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 22:38:05,035 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 22:38:05,039 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-12-15 22:38:05,039 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-12-15 22:38:05,039 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-15 22:38:05,039 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-15 22:38:05,039 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-15 22:38:05,039 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-15 22:38:05,039 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2023-12-15 22:38:05,040 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2023-12-15 22:38:05,040 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-15 22:38:05,040 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-15 22:38:05,040 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-15 22:38:05,040 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-15 22:38:05,040 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-15 22:38:05,040 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-15 22:38:05,040 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-12-15 22:38:05,041 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-12-15 22:38:05,041 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-12-15 22:38:05,041 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-12-15 22:38:05,043 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-15 22:38:05,043 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-15 22:38:05,043 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-15 22:38:05,043 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-15 22:38:05,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 22:38:05,044 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2023-12-15 22:38:05,044 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2023-12-15 22:38:05,044 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-15 22:38:05,044 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-15 22:38:05,044 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-12-15 22:38:05,044 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-12-15 22:38:05,044 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-15 22:38:05,044 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-15 22:38:05,044 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-15 22:38:05,044 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-15 22:38:05,044 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-12-15 22:38:05,044 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-12-15 22:38:05,044 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-15 22:38:05,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-15 22:38:05,045 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-15 22:38:05,045 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-15 22:38:05,045 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-15 22:38:05,045 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-15 22:38:05,045 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-15 22:38:05,045 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-15 22:38:05,045 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-15 22:38:05,045 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-15 22:38:05,045 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-15 22:38:05,046 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-15 22:38:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-15 22:38:05,046 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-15 22:38:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 22:38:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-15 22:38:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-15 22:38:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-15 22:38:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-15 22:38:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-15 22:38:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-15 22:38:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-15 22:38:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-15 22:38:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-15 22:38:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-15 22:38:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-15 22:38:05,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-15 22:38:05,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-15 22:38:05,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-12-15 22:38:05,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-12-15 22:38:05,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-12-15 22:38:05,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-12-15 22:38:05,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-12-15 22:38:05,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-12-15 22:38:05,048 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-15 22:38:05,048 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-15 22:38:05,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 22:38:05,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 22:38:05,048 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-15 22:38:05,049 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-15 22:38:05,211 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 22:38:05,213 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 22:38:05,940 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 22:38:05,997 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 22:38:05,997 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 22:38:05,998 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:38:05 BoogieIcfgContainer [2023-12-15 22:38:05,998 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 22:38:05,999 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 22:38:05,999 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 22:38:06,001 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 22:38:06,001 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:38:04" (1/3) ... [2023-12-15 22:38:06,002 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b01c256 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:38:06, skipping insertion in model container [2023-12-15 22:38:06,002 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:38:04" (2/3) ... [2023-12-15 22:38:06,003 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b01c256 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:38:06, skipping insertion in model container [2023-12-15 22:38:06,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:38:05" (3/3) ... [2023-12-15 22:38:06,004 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product31.cil.c [2023-12-15 22:38:06,015 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 22:38:06,016 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 22:38:06,092 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 22:38:06,096 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;@48125cb6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 22:38:06,096 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 22:38:06,101 INFO L276 IsEmpty]: Start isEmpty. Operand has 574 states, 444 states have (on average 1.7139639639639639) internal successors, (761), 465 states have internal predecessors, (761), 102 states have call successors, (102), 26 states have call predecessors, (102), 26 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-15 22:38:06,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-15 22:38:06,125 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:38:06,126 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:38:06,126 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:38:06,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:38:06,130 INFO L85 PathProgramCache]: Analyzing trace with hash 623565855, now seen corresponding path program 1 times [2023-12-15 22:38:06,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:38:06,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008446494] [2023-12-15 22:38:06,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:38:06,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:38:06,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:06,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:38:06,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:06,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:06,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:06,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:38:06,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:07,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:38:07,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:07,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:07,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:07,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:07,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:07,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:07,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:07,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:38:07,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:07,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:38:07,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:07,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:07,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:07,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:07,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:07,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:38:07,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:07,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-15 22:38:07,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:07,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-15 22:38:07,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:07,287 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-15 22:38:07,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:38:07,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008446494] [2023-12-15 22:38:07,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008446494] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:38:07,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:38:07,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-15 22:38:07,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410554788] [2023-12-15 22:38:07,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:38:07,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 22:38:07,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:38:07,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 22:38:07,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-15 22:38:07,330 INFO L87 Difference]: Start difference. First operand has 574 states, 444 states have (on average 1.7139639639639639) internal successors, (761), 465 states have internal predecessors, (761), 102 states have call successors, (102), 26 states have call predecessors, (102), 26 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-15 22:38:15,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:38:15,434 INFO L93 Difference]: Finished difference Result 2062 states and 3564 transitions. [2023-12-15 22:38:15,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-15 22:38:15,436 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 91 [2023-12-15 22:38:15,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:38:15,483 INFO L225 Difference]: With dead ends: 2062 [2023-12-15 22:38:15,483 INFO L226 Difference]: Without dead ends: 1494 [2023-12-15 22:38:15,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2023-12-15 22:38:15,496 INFO L413 NwaCegarLoop]: 713 mSDtfsCounter, 2776 mSDsluCounter, 2183 mSDsCounter, 0 mSdLazyCounter, 6181 mSolverCounterSat, 853 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2869 SdHoareTripleChecker+Valid, 2896 SdHoareTripleChecker+Invalid, 7034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 853 IncrementalHoareTripleChecker+Valid, 6181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-12-15 22:38:15,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2869 Valid, 2896 Invalid, 7034 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [853 Valid, 6181 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-12-15 22:38:15,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1494 states. [2023-12-15 22:38:15,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1494 to 1110. [2023-12-15 22:38:15,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1110 states, 859 states have (on average 1.6973224679860304) internal successors, (1458), 891 states have internal predecessors, (1458), 202 states have call successors, (202), 46 states have call predecessors, (202), 48 states have return successors, (206), 196 states have call predecessors, (206), 197 states have call successors, (206) [2023-12-15 22:38:15,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 1866 transitions. [2023-12-15 22:38:15,845 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 1866 transitions. Word has length 91 [2023-12-15 22:38:15,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:38:15,845 INFO L495 AbstractCegarLoop]: Abstraction has 1110 states and 1866 transitions. [2023-12-15 22:38:15,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-15 22:38:15,845 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 1866 transitions. [2023-12-15 22:38:15,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-15 22:38:15,852 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:38:15,852 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:38:15,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 22:38:15,852 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:38:15,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:38:15,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1006978343, now seen corresponding path program 1 times [2023-12-15 22:38:15,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:38:15,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738362751] [2023-12-15 22:38:15,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:38:15,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:38:15,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:16,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:38:16,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:16,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:16,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:16,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:38:16,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:16,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:38:16,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:16,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:16,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:16,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:16,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:16,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:16,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:16,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:38:16,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:16,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:38:16,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:16,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:16,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:16,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:16,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:16,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:38:16,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:16,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-15 22:38:16,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:16,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-15 22:38:16,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:16,575 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-15 22:38:16,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:38:16,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738362751] [2023-12-15 22:38:16,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738362751] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:38:16,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:38:16,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:38:16,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33181067] [2023-12-15 22:38:16,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:38:16,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:38:16,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:38:16,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:38:16,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:38:16,581 INFO L87 Difference]: Start difference. First operand 1110 states and 1866 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-15 22:38:20,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:38:20,952 INFO L93 Difference]: Finished difference Result 2566 states and 4373 transitions. [2023-12-15 22:38:20,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 22:38:20,952 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 93 [2023-12-15 22:38:20,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:38:20,960 INFO L225 Difference]: With dead ends: 2566 [2023-12-15 22:38:20,960 INFO L226 Difference]: Without dead ends: 1468 [2023-12-15 22:38:20,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:38:20,964 INFO L413 NwaCegarLoop]: 453 mSDtfsCounter, 1934 mSDsluCounter, 1169 mSDsCounter, 0 mSdLazyCounter, 2917 mSolverCounterSat, 524 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2021 SdHoareTripleChecker+Valid, 1622 SdHoareTripleChecker+Invalid, 3441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 524 IncrementalHoareTripleChecker+Valid, 2917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-15 22:38:20,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2021 Valid, 1622 Invalid, 3441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [524 Valid, 2917 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-15 22:38:20,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1468 states. [2023-12-15 22:38:21,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1468 to 1110. [2023-12-15 22:38:21,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1110 states, 859 states have (on average 1.6961583236321305) internal successors, (1457), 891 states have internal predecessors, (1457), 202 states have call successors, (202), 46 states have call predecessors, (202), 48 states have return successors, (206), 196 states have call predecessors, (206), 197 states have call successors, (206) [2023-12-15 22:38:21,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 1865 transitions. [2023-12-15 22:38:21,128 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 1865 transitions. Word has length 93 [2023-12-15 22:38:21,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:38:21,128 INFO L495 AbstractCegarLoop]: Abstraction has 1110 states and 1865 transitions. [2023-12-15 22:38:21,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-15 22:38:21,128 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 1865 transitions. [2023-12-15 22:38:21,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-15 22:38:21,132 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:38:21,132 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:38:21,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 22:38:21,132 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:38:21,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:38:21,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1892266474, now seen corresponding path program 1 times [2023-12-15 22:38:21,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:38:21,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282557463] [2023-12-15 22:38:21,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:38:21,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:38:21,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:21,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:38:21,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:21,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:21,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:21,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 22:38:21,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:21,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-15 22:38:21,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:21,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:21,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:21,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:21,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:21,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:21,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:21,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:38:21,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:21,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:38:21,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:21,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:21,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:21,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:21,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:21,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:38:21,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:21,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-15 22:38:21,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:21,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-15 22:38:21,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:21,670 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-15 22:38:21,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:38:21,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282557463] [2023-12-15 22:38:21,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282557463] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:38:21,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:38:21,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:38:21,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102748253] [2023-12-15 22:38:21,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:38:21,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:38:21,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:38:21,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:38:21,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:38:21,672 INFO L87 Difference]: Start difference. First operand 1110 states and 1865 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-15 22:38:26,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:38:26,249 INFO L93 Difference]: Finished difference Result 2566 states and 4372 transitions. [2023-12-15 22:38:26,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 22:38:26,249 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 94 [2023-12-15 22:38:26,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:38:26,256 INFO L225 Difference]: With dead ends: 2566 [2023-12-15 22:38:26,256 INFO L226 Difference]: Without dead ends: 1468 [2023-12-15 22:38:26,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:38:26,263 INFO L413 NwaCegarLoop]: 445 mSDtfsCounter, 1015 mSDsluCounter, 1266 mSDsCounter, 0 mSdLazyCounter, 3155 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1102 SdHoareTripleChecker+Valid, 1711 SdHoareTripleChecker+Invalid, 3363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 3155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-12-15 22:38:26,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1102 Valid, 1711 Invalid, 3363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 3155 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-12-15 22:38:26,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1468 states. [2023-12-15 22:38:26,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1468 to 1110. [2023-12-15 22:38:26,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1110 states, 859 states have (on average 1.6949941792782306) internal successors, (1456), 891 states have internal predecessors, (1456), 202 states have call successors, (202), 46 states have call predecessors, (202), 48 states have return successors, (206), 196 states have call predecessors, (206), 197 states have call successors, (206) [2023-12-15 22:38:26,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 1864 transitions. [2023-12-15 22:38:26,405 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 1864 transitions. Word has length 94 [2023-12-15 22:38:26,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:38:26,405 INFO L495 AbstractCegarLoop]: Abstraction has 1110 states and 1864 transitions. [2023-12-15 22:38:26,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-15 22:38:26,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 1864 transitions. [2023-12-15 22:38:26,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-15 22:38:26,408 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:38:26,408 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:38:26,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 22:38:26,408 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:38:26,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:38:26,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1106390261, now seen corresponding path program 1 times [2023-12-15 22:38:26,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:38:26,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005722272] [2023-12-15 22:38:26,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:38:26,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:38:26,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:26,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:38:26,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:26,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:26,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:26,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-15 22:38:26,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:26,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-15 22:38:26,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:26,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:26,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:26,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:26,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:26,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:26,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:26,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:38:26,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:26,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:38:26,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:26,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:26,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:26,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:26,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:26,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:38:26,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:26,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-15 22:38:26,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:26,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-15 22:38:26,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:26,941 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-15 22:38:26,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:38:26,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005722272] [2023-12-15 22:38:26,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005722272] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:38:26,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:38:26,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:38:26,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058900923] [2023-12-15 22:38:26,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:38:26,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:38:26,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:38:26,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:38:26,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:38:26,943 INFO L87 Difference]: Start difference. First operand 1110 states and 1864 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-15 22:38:31,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:38:31,275 INFO L93 Difference]: Finished difference Result 2566 states and 4371 transitions. [2023-12-15 22:38:31,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 22:38:31,276 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 95 [2023-12-15 22:38:31,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:38:31,283 INFO L225 Difference]: With dead ends: 2566 [2023-12-15 22:38:31,283 INFO L226 Difference]: Without dead ends: 1468 [2023-12-15 22:38:31,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:38:31,291 INFO L413 NwaCegarLoop]: 441 mSDtfsCounter, 1938 mSDsluCounter, 1153 mSDsCounter, 0 mSdLazyCounter, 2899 mSolverCounterSat, 544 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2025 SdHoareTripleChecker+Valid, 1594 SdHoareTripleChecker+Invalid, 3443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 544 IncrementalHoareTripleChecker+Valid, 2899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-15 22:38:31,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2025 Valid, 1594 Invalid, 3443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [544 Valid, 2899 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-15 22:38:31,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1468 states. [2023-12-15 22:38:31,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1468 to 1110. [2023-12-15 22:38:31,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1110 states, 859 states have (on average 1.6938300349243307) internal successors, (1455), 891 states have internal predecessors, (1455), 202 states have call successors, (202), 46 states have call predecessors, (202), 48 states have return successors, (206), 196 states have call predecessors, (206), 197 states have call successors, (206) [2023-12-15 22:38:31,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 1863 transitions. [2023-12-15 22:38:31,493 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 1863 transitions. Word has length 95 [2023-12-15 22:38:31,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:38:31,493 INFO L495 AbstractCegarLoop]: Abstraction has 1110 states and 1863 transitions. [2023-12-15 22:38:31,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-15 22:38:31,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 1863 transitions. [2023-12-15 22:38:31,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-15 22:38:31,495 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:38:31,496 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:38:31,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 22:38:31,496 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:38:31,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:38:31,496 INFO L85 PathProgramCache]: Analyzing trace with hash -46713742, now seen corresponding path program 1 times [2023-12-15 22:38:31,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:38:31,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712189605] [2023-12-15 22:38:31,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:38:31,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:38:31,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:31,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:38:31,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:31,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:31,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:31,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-15 22:38:31,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:31,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-15 22:38:31,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:31,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:32,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:32,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:32,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:32,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:32,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:32,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:38:32,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:32,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:38:32,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:32,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:32,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:32,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:32,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:32,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:38:32,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:32,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-15 22:38:32,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:32,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-15 22:38:32,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:32,024 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-15 22:38:32,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:38:32,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712189605] [2023-12-15 22:38:32,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712189605] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:38:32,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:38:32,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:38:32,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082833975] [2023-12-15 22:38:32,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:38:32,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:38:32,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:38:32,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:38:32,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:38:32,026 INFO L87 Difference]: Start difference. First operand 1110 states and 1863 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-15 22:38:35,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:38:35,938 INFO L93 Difference]: Finished difference Result 2566 states and 4370 transitions. [2023-12-15 22:38:35,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 22:38:35,939 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 96 [2023-12-15 22:38:35,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:38:35,946 INFO L225 Difference]: With dead ends: 2566 [2023-12-15 22:38:35,946 INFO L226 Difference]: Without dead ends: 1468 [2023-12-15 22:38:35,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:38:35,950 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 1473 mSDsluCounter, 1209 mSDsCounter, 0 mSdLazyCounter, 2973 mSolverCounterSat, 369 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1560 SdHoareTripleChecker+Valid, 1657 SdHoareTripleChecker+Invalid, 3342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 369 IncrementalHoareTripleChecker+Valid, 2973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-15 22:38:35,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1560 Valid, 1657 Invalid, 3342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [369 Valid, 2973 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-15 22:38:35,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1468 states. [2023-12-15 22:38:36,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1468 to 1110. [2023-12-15 22:38:36,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1110 states, 859 states have (on average 1.6926658905704308) internal successors, (1454), 891 states have internal predecessors, (1454), 202 states have call successors, (202), 46 states have call predecessors, (202), 48 states have return successors, (206), 196 states have call predecessors, (206), 197 states have call successors, (206) [2023-12-15 22:38:36,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 1862 transitions. [2023-12-15 22:38:36,122 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 1862 transitions. Word has length 96 [2023-12-15 22:38:36,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:38:36,123 INFO L495 AbstractCegarLoop]: Abstraction has 1110 states and 1862 transitions. [2023-12-15 22:38:36,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-15 22:38:36,123 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 1862 transitions. [2023-12-15 22:38:36,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-15 22:38:36,125 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:38:36,125 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:38:36,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 22:38:36,125 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:38:36,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:38:36,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1055381743, now seen corresponding path program 1 times [2023-12-15 22:38:36,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:38:36,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326106397] [2023-12-15 22:38:36,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:38:36,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:38:36,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:36,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:38:36,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:36,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:36,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:36,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:38:36,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:36,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-15 22:38:36,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:36,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:36,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:36,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:36,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:36,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:36,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:36,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:38:36,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:36,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:38:36,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:36,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:36,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:36,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:36,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:36,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:38:36,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:36,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-15 22:38:36,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:36,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-15 22:38:36,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:36,671 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-15 22:38:36,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:38:36,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326106397] [2023-12-15 22:38:36,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326106397] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:38:36,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:38:36,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-15 22:38:36,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086929175] [2023-12-15 22:38:36,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:38:36,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 22:38:36,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:38:36,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 22:38:36,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-15 22:38:36,673 INFO L87 Difference]: Start difference. First operand 1110 states and 1862 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-15 22:38:40,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:38:40,434 INFO L93 Difference]: Finished difference Result 2526 states and 4294 transitions. [2023-12-15 22:38:40,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 22:38:40,434 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 97 [2023-12-15 22:38:40,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:38:40,457 INFO L225 Difference]: With dead ends: 2526 [2023-12-15 22:38:40,457 INFO L226 Difference]: Without dead ends: 1468 [2023-12-15 22:38:40,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-12-15 22:38:40,461 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 1126 mSDsluCounter, 1684 mSDsCounter, 0 mSdLazyCounter, 3899 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1217 SdHoareTripleChecker+Valid, 2127 SdHoareTripleChecker+Invalid, 4112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 3899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:38:40,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1217 Valid, 2127 Invalid, 4112 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [213 Valid, 3899 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-15 22:38:40,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1468 states. [2023-12-15 22:38:40,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1468 to 1110. [2023-12-15 22:38:40,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1110 states, 859 states have (on average 1.6868451688009314) internal successors, (1449), 891 states have internal predecessors, (1449), 202 states have call successors, (202), 46 states have call predecessors, (202), 48 states have return successors, (206), 196 states have call predecessors, (206), 197 states have call successors, (206) [2023-12-15 22:38:40,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 1857 transitions. [2023-12-15 22:38:40,647 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 1857 transitions. Word has length 97 [2023-12-15 22:38:40,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:38:40,648 INFO L495 AbstractCegarLoop]: Abstraction has 1110 states and 1857 transitions. [2023-12-15 22:38:40,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-15 22:38:40,648 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 1857 transitions. [2023-12-15 22:38:40,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-15 22:38:40,650 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:38:40,650 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:38:40,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 22:38:40,650 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:38:40,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:38:40,651 INFO L85 PathProgramCache]: Analyzing trace with hash 942971122, now seen corresponding path program 1 times [2023-12-15 22:38:40,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:38:40,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458870245] [2023-12-15 22:38:40,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:38:40,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:38:40,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:40,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:38:40,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:40,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:40,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:40,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:38:40,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:41,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:38:41,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:41,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:41,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:41,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:41,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:41,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:41,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:41,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:38:41,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:41,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:38:41,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:41,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:41,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:41,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:41,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:41,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:38:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:41,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-15 22:38:41,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:41,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-15 22:38:41,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:41,263 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-15 22:38:41,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:38:41,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458870245] [2023-12-15 22:38:41,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458870245] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:38:41,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:38:41,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-15 22:38:41,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311234082] [2023-12-15 22:38:41,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:38:41,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 22:38:41,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:38:41,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 22:38:41,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-15 22:38:41,265 INFO L87 Difference]: Start difference. First operand 1110 states and 1857 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-15 22:38:45,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:38:45,359 INFO L93 Difference]: Finished difference Result 2526 states and 4289 transitions. [2023-12-15 22:38:45,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 22:38:45,360 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 98 [2023-12-15 22:38:45,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:38:45,365 INFO L225 Difference]: With dead ends: 2526 [2023-12-15 22:38:45,365 INFO L226 Difference]: Without dead ends: 1468 [2023-12-15 22:38:45,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-12-15 22:38:45,368 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 1117 mSDsluCounter, 1684 mSDsCounter, 0 mSdLazyCounter, 3872 mSolverCounterSat, 211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1208 SdHoareTripleChecker+Valid, 2127 SdHoareTripleChecker+Invalid, 4083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 3872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-15 22:38:45,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1208 Valid, 2127 Invalid, 4083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [211 Valid, 3872 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-15 22:38:45,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1468 states. [2023-12-15 22:38:45,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1468 to 1110. [2023-12-15 22:38:45,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1110 states, 859 states have (on average 1.681024447031432) internal successors, (1444), 891 states have internal predecessors, (1444), 202 states have call successors, (202), 46 states have call predecessors, (202), 48 states have return successors, (206), 196 states have call predecessors, (206), 197 states have call successors, (206) [2023-12-15 22:38:45,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 1852 transitions. [2023-12-15 22:38:45,517 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 1852 transitions. Word has length 98 [2023-12-15 22:38:45,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:38:45,517 INFO L495 AbstractCegarLoop]: Abstraction has 1110 states and 1852 transitions. [2023-12-15 22:38:45,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-15 22:38:45,517 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 1852 transitions. [2023-12-15 22:38:45,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-15 22:38:45,519 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:38:45,519 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:38:45,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 22:38:45,519 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:38:45,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:38:45,520 INFO L85 PathProgramCache]: Analyzing trace with hash -932000138, now seen corresponding path program 1 times [2023-12-15 22:38:45,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:38:45,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025191401] [2023-12-15 22:38:45,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:38:45,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:38:45,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:45,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:38:45,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:45,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:45,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:45,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:38:45,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:46,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-15 22:38:46,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:46,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:46,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:46,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:46,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:46,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:46,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:46,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:38:46,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:46,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:38:46,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:46,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:46,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:46,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:46,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:46,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:38:46,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:46,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-15 22:38:46,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:46,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-15 22:38:46,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:46,099 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-15 22:38:46,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:38:46,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025191401] [2023-12-15 22:38:46,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025191401] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:38:46,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:38:46,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-15 22:38:46,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778978877] [2023-12-15 22:38:46,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:38:46,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 22:38:46,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:38:46,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 22:38:46,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-15 22:38:46,101 INFO L87 Difference]: Start difference. First operand 1110 states and 1852 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-15 22:38:49,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:38:49,522 INFO L93 Difference]: Finished difference Result 2526 states and 4284 transitions. [2023-12-15 22:38:49,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 22:38:49,522 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 99 [2023-12-15 22:38:49,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:38:49,529 INFO L225 Difference]: With dead ends: 2526 [2023-12-15 22:38:49,529 INFO L226 Difference]: Without dead ends: 1468 [2023-12-15 22:38:49,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-12-15 22:38:49,533 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 1583 mSDsluCounter, 1628 mSDsCounter, 0 mSdLazyCounter, 3653 mSolverCounterSat, 377 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1674 SdHoareTripleChecker+Valid, 2074 SdHoareTripleChecker+Invalid, 4030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 377 IncrementalHoareTripleChecker+Valid, 3653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-15 22:38:49,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1674 Valid, 2074 Invalid, 4030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [377 Valid, 3653 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-15 22:38:49,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1468 states. [2023-12-15 22:38:49,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1468 to 1110. [2023-12-15 22:38:49,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1110 states, 859 states have (on average 1.6752037252619325) internal successors, (1439), 891 states have internal predecessors, (1439), 202 states have call successors, (202), 46 states have call predecessors, (202), 48 states have return successors, (206), 196 states have call predecessors, (206), 197 states have call successors, (206) [2023-12-15 22:38:49,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 1847 transitions. [2023-12-15 22:38:49,719 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 1847 transitions. Word has length 99 [2023-12-15 22:38:49,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:38:49,719 INFO L495 AbstractCegarLoop]: Abstraction has 1110 states and 1847 transitions. [2023-12-15 22:38:49,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-15 22:38:49,720 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 1847 transitions. [2023-12-15 22:38:49,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-15 22:38:49,723 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:38:49,723 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:38:49,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 22:38:49,723 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:38:49,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:38:49,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1538202920, now seen corresponding path program 1 times [2023-12-15 22:38:49,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:38:49,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166450178] [2023-12-15 22:38:49,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:38:49,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:38:49,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:49,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:38:49,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:49,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:49,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:49,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:38:49,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:50,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:38:50,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:50,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:50,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:50,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:50,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:50,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:50,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:50,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:38:50,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:50,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:38:50,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:50,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:50,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:50,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:50,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:50,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:38:50,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:50,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-15 22:38:50,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:50,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-15 22:38:50,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:50,230 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-15 22:38:50,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:38:50,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166450178] [2023-12-15 22:38:50,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166450178] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:38:50,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:38:50,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:38:50,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787829633] [2023-12-15 22:38:50,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:38:50,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:38:50,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:38:50,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:38:50,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:38:50,232 INFO L87 Difference]: Start difference. First operand 1110 states and 1847 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-15 22:38:54,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:38:54,256 INFO L93 Difference]: Finished difference Result 2537 states and 4295 transitions. [2023-12-15 22:38:54,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-15 22:38:54,257 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 100 [2023-12-15 22:38:54,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:38:54,263 INFO L225 Difference]: With dead ends: 2537 [2023-12-15 22:38:54,263 INFO L226 Difference]: Without dead ends: 1485 [2023-12-15 22:38:54,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2023-12-15 22:38:54,268 INFO L413 NwaCegarLoop]: 450 mSDtfsCounter, 1532 mSDsluCounter, 1225 mSDsCounter, 0 mSdLazyCounter, 2951 mSolverCounterSat, 367 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1619 SdHoareTripleChecker+Valid, 1675 SdHoareTripleChecker+Invalid, 3318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 367 IncrementalHoareTripleChecker+Valid, 2951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:38:54,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1619 Valid, 1675 Invalid, 3318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [367 Valid, 2951 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-15 22:38:54,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1485 states. [2023-12-15 22:38:54,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1485 to 1112. [2023-12-15 22:38:54,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 861 states have (on average 1.6736353077816493) internal successors, (1441), 893 states have internal predecessors, (1441), 202 states have call successors, (202), 46 states have call predecessors, (202), 48 states have return successors, (206), 196 states have call predecessors, (206), 197 states have call successors, (206) [2023-12-15 22:38:54,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1849 transitions. [2023-12-15 22:38:54,454 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1849 transitions. Word has length 100 [2023-12-15 22:38:54,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:38:54,455 INFO L495 AbstractCegarLoop]: Abstraction has 1112 states and 1849 transitions. [2023-12-15 22:38:54,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-15 22:38:54,455 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1849 transitions. [2023-12-15 22:38:54,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-15 22:38:54,457 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:38:54,457 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:38:54,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 22:38:54,458 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:38:54,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:38:54,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1674032311, now seen corresponding path program 1 times [2023-12-15 22:38:54,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:38:54,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231383942] [2023-12-15 22:38:54,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:38:54,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:38:54,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:54,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:38:54,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:54,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:54,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:54,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:38:54,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:54,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:38:54,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:54,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:54,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:54,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:54,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:54,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:54,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:54,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:38:54,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:54,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:38:54,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:54,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:54,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:54,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:54,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:54,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:38:54,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:54,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-15 22:38:54,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:54,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-15 22:38:54,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:54,992 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-15 22:38:54,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:38:54,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231383942] [2023-12-15 22:38:54,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231383942] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:38:54,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:38:54,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-15 22:38:54,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906087816] [2023-12-15 22:38:54,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:38:54,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 22:38:54,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:38:54,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 22:38:54,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-15 22:38:54,995 INFO L87 Difference]: Start difference. First operand 1112 states and 1849 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-15 22:38:58,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:38:58,789 INFO L93 Difference]: Finished difference Result 2532 states and 4285 transitions. [2023-12-15 22:38:58,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 22:38:58,790 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 100 [2023-12-15 22:38:58,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:38:58,796 INFO L225 Difference]: With dead ends: 2532 [2023-12-15 22:38:58,796 INFO L226 Difference]: Without dead ends: 1472 [2023-12-15 22:38:58,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-12-15 22:38:58,799 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 1567 mSDsluCounter, 1637 mSDsCounter, 0 mSdLazyCounter, 3655 mSolverCounterSat, 370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1658 SdHoareTripleChecker+Valid, 2088 SdHoareTripleChecker+Invalid, 4025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 370 IncrementalHoareTripleChecker+Valid, 3655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:38:58,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1658 Valid, 2088 Invalid, 4025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [370 Valid, 3655 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-15 22:38:58,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2023-12-15 22:38:58,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1112. [2023-12-15 22:38:58,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 861 states have (on average 1.6678281068524972) internal successors, (1436), 893 states have internal predecessors, (1436), 202 states have call successors, (202), 46 states have call predecessors, (202), 48 states have return successors, (206), 196 states have call predecessors, (206), 197 states have call successors, (206) [2023-12-15 22:38:58,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1844 transitions. [2023-12-15 22:38:58,986 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1844 transitions. Word has length 100 [2023-12-15 22:38:58,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:38:58,986 INFO L495 AbstractCegarLoop]: Abstraction has 1112 states and 1844 transitions. [2023-12-15 22:38:58,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-15 22:38:58,986 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1844 transitions. [2023-12-15 22:38:58,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-15 22:38:58,988 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:38:58,988 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:38:58,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-15 22:38:58,989 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:38:58,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:38:58,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1233828952, now seen corresponding path program 1 times [2023-12-15 22:38:58,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:38:58,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483425246] [2023-12-15 22:38:58,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:38:58,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:38:59,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:59,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:38:59,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:59,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:59,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:59,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:38:59,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:59,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-15 22:38:59,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:59,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:59,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:59,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:59,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:59,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:59,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:59,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:38:59,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:59,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:38:59,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:59,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:59,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:59,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:38:59,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:59,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:38:59,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:59,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-15 22:38:59,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:59,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-15 22:38:59,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:38:59,421 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-15 22:38:59,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:38:59,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483425246] [2023-12-15 22:38:59,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483425246] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:38:59,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:38:59,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:38:59,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613857622] [2023-12-15 22:38:59,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:38:59,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:38:59,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:38:59,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:38:59,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:38:59,422 INFO L87 Difference]: Start difference. First operand 1112 states and 1844 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-15 22:39:03,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:39:03,773 INFO L93 Difference]: Finished difference Result 2541 states and 4292 transitions. [2023-12-15 22:39:03,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-15 22:39:03,773 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 101 [2023-12-15 22:39:03,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:39:03,779 INFO L225 Difference]: With dead ends: 2541 [2023-12-15 22:39:03,780 INFO L226 Difference]: Without dead ends: 1489 [2023-12-15 22:39:03,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2023-12-15 22:39:03,783 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 1077 mSDsluCounter, 1268 mSDsCounter, 0 mSdLazyCounter, 2996 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1164 SdHoareTripleChecker+Valid, 1716 SdHoareTripleChecker+Invalid, 3206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 2996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:39:03,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1164 Valid, 1716 Invalid, 3206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 2996 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-15 22:39:03,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1489 states. [2023-12-15 22:39:03,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1489 to 1115. [2023-12-15 22:39:03,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1115 states, 864 states have (on average 1.6655092592592593) internal successors, (1439), 896 states have internal predecessors, (1439), 202 states have call successors, (202), 46 states have call predecessors, (202), 48 states have return successors, (206), 196 states have call predecessors, (206), 197 states have call successors, (206) [2023-12-15 22:39:03,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1115 states to 1115 states and 1847 transitions. [2023-12-15 22:39:03,977 INFO L78 Accepts]: Start accepts. Automaton has 1115 states and 1847 transitions. Word has length 101 [2023-12-15 22:39:03,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:39:03,977 INFO L495 AbstractCegarLoop]: Abstraction has 1115 states and 1847 transitions. [2023-12-15 22:39:03,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-15 22:39:03,978 INFO L276 IsEmpty]: Start isEmpty. Operand 1115 states and 1847 transitions. [2023-12-15 22:39:03,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-15 22:39:03,980 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:39:03,980 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:39:03,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 22:39:03,980 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:39:03,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:39:03,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1457258971, now seen corresponding path program 1 times [2023-12-15 22:39:03,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:39:03,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857367828] [2023-12-15 22:39:03,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:39:03,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:39:03,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:39:04,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:39:04,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:39:04,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:39:04,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:39:04,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:39:04,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:39:04,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-15 22:39:04,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:39:04,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:39:04,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:39:04,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:39:04,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:39:04,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:39:04,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:39:04,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:39:04,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:39:04,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:39:04,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:39:04,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:39:04,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:39:04,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:39:04,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:39:04,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:39:04,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:39:04,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-15 22:39:04,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:39:04,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-15 22:39:04,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:39:04,510 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-15 22:39:04,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:39:04,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857367828] [2023-12-15 22:39:04,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857367828] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:39:04,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:39:04,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-15 22:39:04,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166956104] [2023-12-15 22:39:04,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:39:04,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 22:39:04,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:39:04,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 22:39:04,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-15 22:39:04,512 INFO L87 Difference]: Start difference. First operand 1115 states and 1847 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Received shutdown request... [2023-12-15 22:39:05,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:39:05,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-12-15 22:39:05,295 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 232 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-15 22:39:05,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 92 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-15 22:39:05,296 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 22:39:05,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-15 22:39:05,297 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (1115states) and FLOYD_HOARE automaton (currently 9 states, 8 states before enhancement),while ReachableStatesComputation was computing reachable states (177 states constructed, input type IntersectNwa). [2023-12-15 22:39:05,299 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:39:05,301 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 22:39:05,302 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 22:39:05,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:39:05 BoogieIcfgContainer [2023-12-15 22:39:05,307 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 22:39:05,307 INFO L158 Benchmark]: Toolchain (without parser) took 61117.92ms. Allocated memory was 253.8MB in the beginning and 882.9MB in the end (delta: 629.1MB). Free memory was 204.2MB in the beginning and 423.1MB in the end (delta: -218.9MB). Peak memory consumption was 410.8MB. Max. memory is 8.0GB. [2023-12-15 22:39:05,307 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 210.8MB. Free memory is still 157.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 22:39:05,308 INFO L158 Benchmark]: CACSL2BoogieTranslator took 546.04ms. Allocated memory is still 253.8MB. Free memory was 203.7MB in the beginning and 159.2MB in the end (delta: 44.6MB). Peak memory consumption was 44.0MB. Max. memory is 8.0GB. [2023-12-15 22:39:05,310 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.06ms. Allocated memory is still 253.8MB. Free memory was 159.2MB in the beginning and 153.4MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-15 22:39:05,311 INFO L158 Benchmark]: Boogie Preprocessor took 129.10ms. Allocated memory is still 253.8MB. Free memory was 153.4MB in the beginning and 144.9MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2023-12-15 22:39:05,312 INFO L158 Benchmark]: RCFGBuilder took 1059.00ms. Allocated memory is still 253.8MB. Free memory was 144.9MB in the beginning and 120.6MB in the end (delta: 24.3MB). Peak memory consumption was 24.4MB. Max. memory is 8.0GB. [2023-12-15 22:39:05,312 INFO L158 Benchmark]: TraceAbstraction took 59307.66ms. Allocated memory was 253.8MB in the beginning and 882.9MB in the end (delta: 629.1MB). Free memory was 120.1MB in the beginning and 423.1MB in the end (delta: -303.0MB). Peak memory consumption was 326.6MB. Max. memory is 8.0GB. [2023-12-15 22:39:05,325 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 210.8MB. Free memory is still 157.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 546.04ms. Allocated memory is still 253.8MB. Free memory was 203.7MB in the beginning and 159.2MB in the end (delta: 44.6MB). Peak memory consumption was 44.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 72.06ms. Allocated memory is still 253.8MB. Free memory was 159.2MB in the beginning and 153.4MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 129.10ms. Allocated memory is still 253.8MB. Free memory was 153.4MB in the beginning and 144.9MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * RCFGBuilder took 1059.00ms. Allocated memory is still 253.8MB. Free memory was 144.9MB in the beginning and 120.6MB in the end (delta: 24.3MB). Peak memory consumption was 24.4MB. Max. memory is 8.0GB. * TraceAbstraction took 59307.66ms. Allocated memory was 253.8MB in the beginning and 882.9MB in the end (delta: 629.1MB). Free memory was 120.1MB in the beginning and 423.1MB in the end (delta: -303.0MB). Peak memory consumption was 326.6MB. 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,"Floor.i","") [48] - GenericResultAtLocation [Line: 716]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [716] - GenericResultAtLocation [Line: 837]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [837] - GenericResultAtLocation [Line: 1024]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [1024] - GenericResultAtLocation [Line: 1121]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1121] - GenericResultAtLocation [Line: 1476]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1476] - GenericResultAtLocation [Line: 3091]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3091] - GenericResultAtLocation [Line: 3126]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3126] - GenericResultAtLocation [Line: 3135]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [3135] - GenericResultAtLocation [Line: 3501]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [3501] * 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: 3131]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 3131). Cancelled while NwaCegarLoop was constructing difference of abstraction (1115states) and FLOYD_HOARE automaton (currently 9 states, 8 states before enhancement),while ReachableStatesComputation was computing reachable states (177 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 27 procedures, 574 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 59.3s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 49.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18354 SdHoareTripleChecker+Valid, 38.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17370 mSDsluCounter, 21379 SdHoareTripleChecker+Invalid, 34.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16172 mSDsCounter, 4261 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39629 IncrementalHoareTripleChecker+Invalid, 43890 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4261 mSolverCounterUnsat, 5207 mSDtfsCounter, 39629 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 464 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 11.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1115occurred in iteration=11, InterpolantAutomatonStates: 109, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 3997 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 6.8s InterpolantComputationTime, 1165 NumberOfCodeBlocks, 1165 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1153 ConstructedInterpolants, 0 QuantifiedInterpolants, 7887 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 168/168 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