/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/elevator_spec1_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 05:24:46,919 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 05:24:46,978 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 05:24:46,982 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 05:24:46,982 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 05:24:47,003 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 05:24:47,004 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 05:24:47,005 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 05:24:47,006 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 05:24:47,006 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 05:24:47,006 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 05:24:47,007 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 05:24:47,010 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 05:24:47,010 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 05:24:47,010 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 05:24:47,011 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 05:24:47,011 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 05:24:47,011 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 05:24:47,012 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 05:24:47,012 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 05:24:47,012 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 05:24:47,015 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 05:24:47,015 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 05:24:47,015 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 05:24:47,020 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 05:24:47,020 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 05:24:47,021 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 05:24:47,021 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 05:24:47,021 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 05:24:47,021 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 05:24:47,022 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 05:24:47,022 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 05:24:47,022 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 05:24:47,023 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 05:24:47,023 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 05:24:47,023 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 05:24:47,023 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 05:24:47,024 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 05:24:47,024 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 05:24:47,024 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 05:24:47,024 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 05:24:47,029 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 05:24:47,029 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 05:24:47,029 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 05:24:47,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 05:24:47,283 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 05:24:47,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 05:24:47,286 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 05:24:47,286 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 05:24:47,287 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec1_product28.cil.c [2023-12-16 05:24:48,447 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 05:24:48,764 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 05:24:48,765 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product28.cil.c [2023-12-16 05:24:48,787 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4087721df/4efbb142224d4648a6ba48e217213307/FLAG07dfc2de4 [2023-12-16 05:24:48,802 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4087721df/4efbb142224d4648a6ba48e217213307 [2023-12-16 05:24:48,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 05:24:48,806 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 05:24:48,807 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 05:24:48,807 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 05:24:48,816 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 05:24:48,817 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:24:48" (1/1) ... [2023-12-16 05:24:48,818 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@411444a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:24:48, skipping insertion in model container [2023-12-16 05:24:48,818 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:24:48" (1/1) ... [2023-12-16 05:24:48,898 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 05:24:49,321 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_spec1_product28.cil.c[63597,63610] [2023-12-16 05:24:49,365 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 05:24:49,380 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 05:24:49,390 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2023-12-16 05:24:49,392 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [412] [2023-12-16 05:24:49,392 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [532] [2023-12-16 05:24:49,392 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [567] [2023-12-16 05:24:49,393 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [755] [2023-12-16 05:24:49,393 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [1426] [2023-12-16 05:24:49,394 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1518] [2023-12-16 05:24:49,394 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3108] [2023-12-16 05:24:49,394 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [3117] [2023-12-16 05:24:49,394 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [3130] [2023-12-16 05:24:49,498 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_spec1_product28.cil.c[63597,63610] [2023-12-16 05:24:49,509 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 05:24:49,533 INFO L206 MainTranslator]: Completed translation [2023-12-16 05:24:49,533 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:24:49 WrapperNode [2023-12-16 05:24:49,533 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 05:24:49,534 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 05:24:49,534 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 05:24:49,534 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 05:24:49,540 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:24:49" (1/1) ... [2023-12-16 05:24:49,570 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:24:49" (1/1) ... [2023-12-16 05:24:49,623 INFO L138 Inliner]: procedures = 97, calls = 349, calls flagged for inlining = 28, calls inlined = 24, statements flattened = 1166 [2023-12-16 05:24:49,624 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 05:24:49,625 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 05:24:49,625 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 05:24:49,625 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 05:24:49,634 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:24:49" (1/1) ... [2023-12-16 05:24:49,634 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:24:49" (1/1) ... [2023-12-16 05:24:49,642 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:24:49" (1/1) ... [2023-12-16 05:24:49,677 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]. [2023-12-16 05:24:49,677 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:24:49" (1/1) ... [2023-12-16 05:24:49,677 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:24:49" (1/1) ... [2023-12-16 05:24:49,696 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:24:49" (1/1) ... [2023-12-16 05:24:49,720 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:24:49" (1/1) ... [2023-12-16 05:24:49,726 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:24:49" (1/1) ... [2023-12-16 05:24:49,730 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:24:49" (1/1) ... [2023-12-16 05:24:49,741 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 05:24:49,742 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 05:24:49,742 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 05:24:49,742 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 05:24:49,743 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:24:49" (1/1) ... [2023-12-16 05:24:49,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 05:24:49,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:24:49,801 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) [2023-12-16 05:24:49,832 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 [2023-12-16 05:24:49,851 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-12-16 05:24:49,852 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-12-16 05:24:49,852 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-16 05:24:49,852 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-16 05:24:49,852 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-16 05:24:49,852 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-16 05:24:49,852 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-16 05:24:49,853 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-16 05:24:49,853 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-16 05:24:49,853 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-16 05:24:49,853 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-16 05:24:49,853 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-16 05:24:49,853 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-12-16 05:24:49,853 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-12-16 05:24:49,854 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-16 05:24:49,854 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-16 05:24:49,854 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-16 05:24:49,855 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-16 05:24:49,857 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2023-12-16 05:24:49,858 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2023-12-16 05:24:49,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 05:24:49,858 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-16 05:24:49,858 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-16 05:24:49,858 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-12-16 05:24:49,858 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-12-16 05:24:49,858 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-16 05:24:49,858 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-16 05:24:49,858 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-16 05:24:49,858 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-16 05:24:49,859 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-12-16 05:24:49,859 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-12-16 05:24:49,859 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-16 05:24:49,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-16 05:24:49,859 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-16 05:24:49,859 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-16 05:24:49,859 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-16 05:24:49,859 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-16 05:24:49,860 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2023-12-16 05:24:49,860 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2023-12-16 05:24:49,860 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-16 05:24:49,860 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-16 05:24:49,860 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-16 05:24:49,860 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-16 05:24:49,861 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-16 05:24:49,861 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-16 05:24:49,861 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-16 05:24:49,861 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-16 05:24:49,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 05:24:49,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-16 05:24:49,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-16 05:24:49,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-16 05:24:49,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-16 05:24:49,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-16 05:24:49,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-16 05:24:49,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-16 05:24:49,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-16 05:24:49,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-16 05:24:49,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-16 05:24:49,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-16 05:24:49,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-16 05:24:49,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-16 05:24:49,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-12-16 05:24:49,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-12-16 05:24:49,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-12-16 05:24:49,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-12-16 05:24:49,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-12-16 05:24:49,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-12-16 05:24:49,865 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-16 05:24:49,865 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-16 05:24:49,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 05:24:49,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 05:24:49,865 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-16 05:24:49,865 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-16 05:24:49,865 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2023-12-16 05:24:49,865 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2023-12-16 05:24:50,077 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 05:24:50,080 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 05:24:51,060 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 05:24:51,136 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 05:24:51,136 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 05:24:51,137 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:24:51 BoogieIcfgContainer [2023-12-16 05:24:51,137 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 05:24:51,138 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 05:24:51,138 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 05:24:51,141 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 05:24:51,141 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:24:48" (1/3) ... [2023-12-16 05:24:51,142 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44e30bf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:24:51, skipping insertion in model container [2023-12-16 05:24:51,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:24:49" (2/3) ... [2023-12-16 05:24:51,143 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44e30bf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:24:51, skipping insertion in model container [2023-12-16 05:24:51,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:24:51" (3/3) ... [2023-12-16 05:24:51,144 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product28.cil.c [2023-12-16 05:24:51,159 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 05:24:51,160 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 05:24:51,229 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 05:24:51,234 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;@238995a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 05:24:51,235 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 05:24:51,241 INFO L276 IsEmpty]: Start isEmpty. Operand has 563 states, 433 states have (on average 1.71824480369515) internal successors, (744), 456 states have internal predecessors, (744), 102 states have call successors, (102), 26 states have call predecessors, (102), 26 states have return successors, (102), 95 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-16 05:24:51,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-16 05:24:51,255 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:24:51,255 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:24:51,256 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:24:51,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:24:51,260 INFO L85 PathProgramCache]: Analyzing trace with hash 2106154830, now seen corresponding path program 1 times [2023-12-16 05:24:51,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:24:51,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720203754] [2023-12-16 05:24:51,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:24:51,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:24:51,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:24:51,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:24:51,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:24:52,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:24:52,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:24:52,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 05:24:52,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:24:52,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-16 05:24:52,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:24:52,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:24:52,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:24:52,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 05:24:52,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:24:52,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 05:24:52,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:24:52,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:24:52,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:24:52,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:24:52,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:24:52,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:24:52,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:24:52,595 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-16 05:24:52,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:24:52,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720203754] [2023-12-16 05:24:52,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720203754] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:24:52,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:24:52,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 05:24:52,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244141133] [2023-12-16 05:24:52,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:24:52,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 05:24:52,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:24:52,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 05:24:52,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 05:24:52,640 INFO L87 Difference]: Start difference. First operand has 563 states, 433 states have (on average 1.71824480369515) internal successors, (744), 456 states have internal predecessors, (744), 102 states have call successors, (102), 26 states have call predecessors, (102), 26 states have return successors, (102), 95 states have call predecessors, (102), 102 states have call successors, (102) Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 05:24:58,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:24:58,142 INFO L93 Difference]: Finished difference Result 1282 states and 2186 transitions. [2023-12-16 05:24:58,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 05:24:58,145 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 72 [2023-12-16 05:24:58,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:24:58,167 INFO L225 Difference]: With dead ends: 1282 [2023-12-16 05:24:58,168 INFO L226 Difference]: Without dead ends: 719 [2023-12-16 05:24:58,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 05:24:58,179 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 1143 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 3069 mSolverCounterSat, 288 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1229 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 3357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 288 IncrementalHoareTripleChecker+Valid, 3069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-12-16 05:24:58,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1229 Valid, 673 Invalid, 3357 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [288 Valid, 3069 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-12-16 05:24:58,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2023-12-16 05:24:58,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 559. [2023-12-16 05:24:58,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 431 states have (on average 1.7076566125290022) internal successors, (736), 452 states have internal predecessors, (736), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 94 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-16 05:24:58,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 935 transitions. [2023-12-16 05:24:58,354 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 935 transitions. Word has length 72 [2023-12-16 05:24:58,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:24:58,354 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 935 transitions. [2023-12-16 05:24:58,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 05:24:58,354 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 935 transitions. [2023-12-16 05:24:58,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-16 05:24:58,366 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:24:58,366 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:24:58,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 05:24:58,367 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:24:58,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:24:58,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1397801702, now seen corresponding path program 1 times [2023-12-16 05:24:58,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:24:58,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331590317] [2023-12-16 05:24:58,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:24:58,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:24:58,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:24:58,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:24:58,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:24:58,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:24:58,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:24:58,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:24:58,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:24:58,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-16 05:24:58,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:24:58,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:24:58,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:24:58,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:24:58,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:24:59,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 05:24:59,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:24:59,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:24:59,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:24:59,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:24:59,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:24:59,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:24:59,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:24:59,213 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 05:24:59,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:24:59,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331590317] [2023-12-16 05:24:59,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331590317] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:24:59,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:24:59,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 05:24:59,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844199389] [2023-12-16 05:24:59,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:24:59,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 05:24:59,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:24:59,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 05:24:59,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 05:24:59,217 INFO L87 Difference]: Start difference. First operand 559 states and 935 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 05:25:04,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:25:04,436 INFO L93 Difference]: Finished difference Result 1275 states and 2158 transitions. [2023-12-16 05:25:04,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 05:25:04,437 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 75 [2023-12-16 05:25:04,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:25:04,443 INFO L225 Difference]: With dead ends: 1275 [2023-12-16 05:25:04,443 INFO L226 Difference]: Without dead ends: 719 [2023-12-16 05:25:04,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 05:25:04,447 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 683 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 3261 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 769 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 3390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 3261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-12-16 05:25:04,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [769 Valid, 670 Invalid, 3390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 3261 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-12-16 05:25:04,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2023-12-16 05:25:04,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 559. [2023-12-16 05:25:04,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 431 states have (on average 1.705336426914153) internal successors, (735), 452 states have internal predecessors, (735), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 94 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-16 05:25:04,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 934 transitions. [2023-12-16 05:25:04,538 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 934 transitions. Word has length 75 [2023-12-16 05:25:04,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:25:04,538 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 934 transitions. [2023-12-16 05:25:04,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 05:25:04,538 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 934 transitions. [2023-12-16 05:25:04,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-16 05:25:04,540 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:25:04,540 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:25:04,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 05:25:04,540 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:25:04,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:25:04,541 INFO L85 PathProgramCache]: Analyzing trace with hash -302012626, now seen corresponding path program 1 times [2023-12-16 05:25:04,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:25:04,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598026856] [2023-12-16 05:25:04,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:25:04,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:25:04,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:04,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:25:04,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:04,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:04,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:04,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 05:25:04,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:04,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-16 05:25:04,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:04,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:04,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:04,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 05:25:04,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:05,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-16 05:25:05,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:05,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:05,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:05,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:05,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:05,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:25:05,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:05,228 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-16 05:25:05,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:25:05,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598026856] [2023-12-16 05:25:05,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598026856] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:25:05,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442280956] [2023-12-16 05:25:05,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:25:05,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:25:05,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:25:05,236 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 05:25:05,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 05:25:05,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:05,563 INFO L262 TraceCheckSpWp]: Trace formula consists of 1719 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 05:25:05,572 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:25:05,623 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-16 05:25:05,623 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:25:05,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442280956] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:25:05,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:25:05,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2023-12-16 05:25:05,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47207526] [2023-12-16 05:25:05,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:25:05,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 05:25:05,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:25:05,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 05:25:05,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-16 05:25:05,626 INFO L87 Difference]: Start difference. First operand 559 states and 934 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 05:25:05,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:25:05,790 INFO L93 Difference]: Finished difference Result 1122 states and 1875 transitions. [2023-12-16 05:25:05,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 05:25:05,790 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 77 [2023-12-16 05:25:05,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:25:05,794 INFO L225 Difference]: With dead ends: 1122 [2023-12-16 05:25:05,794 INFO L226 Difference]: Without dead ends: 568 [2023-12-16 05:25:05,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:25:05,798 INFO L413 NwaCegarLoop]: 908 mSDtfsCounter, 20 mSDsluCounter, 1809 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 2717 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:25:05,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 2717 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 05:25:05,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2023-12-16 05:25:05,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 568. [2023-12-16 05:25:05,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 439 states have (on average 1.7015945330296127) internal successors, (747), 460 states have internal predecessors, (747), 102 states have call successors, (102), 27 states have call predecessors, (102), 26 states have return successors, (97), 94 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-16 05:25:05,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 946 transitions. [2023-12-16 05:25:05,873 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 946 transitions. Word has length 77 [2023-12-16 05:25:05,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:25:05,873 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 946 transitions. [2023-12-16 05:25:05,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 05:25:05,873 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 946 transitions. [2023-12-16 05:25:05,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-16 05:25:05,875 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:25:05,875 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:25:05,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 05:25:06,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:25:06,087 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:25:06,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:25:06,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1307695335, now seen corresponding path program 1 times [2023-12-16 05:25:06,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:25:06,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805842918] [2023-12-16 05:25:06,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:25:06,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:25:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:06,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:25:06,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:06,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:06,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:06,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 05:25:06,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:06,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-16 05:25:06,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:06,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:06,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:06,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 05:25:06,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:06,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-16 05:25:06,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:06,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:06,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:06,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:06,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:06,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:25:06,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:06,733 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-16 05:25:06,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:25:06,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805842918] [2023-12-16 05:25:06,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805842918] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:25:06,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425530437] [2023-12-16 05:25:06,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:25:06,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:25:06,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:25:06,735 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 05:25:06,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 05:25:07,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:07,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 1720 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 05:25:07,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:25:07,129 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-16 05:25:07,129 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:25:07,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1425530437] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:25:07,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:25:07,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2023-12-16 05:25:07,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016963473] [2023-12-16 05:25:07,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:25:07,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 05:25:07,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:25:07,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 05:25:07,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-16 05:25:07,131 INFO L87 Difference]: Start difference. First operand 568 states and 946 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 05:25:07,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:25:07,267 INFO L93 Difference]: Finished difference Result 1124 states and 1876 transitions. [2023-12-16 05:25:07,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 05:25:07,268 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 78 [2023-12-16 05:25:07,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:25:07,272 INFO L225 Difference]: With dead ends: 1124 [2023-12-16 05:25:07,272 INFO L226 Difference]: Without dead ends: 568 [2023-12-16 05:25:07,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:25:07,275 INFO L413 NwaCegarLoop]: 908 mSDtfsCounter, 18 mSDsluCounter, 1809 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 2717 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:25:07,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 2717 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 05:25:07,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2023-12-16 05:25:07,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 568. [2023-12-16 05:25:07,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 439 states have (on average 1.6993166287015946) internal successors, (746), 460 states have internal predecessors, (746), 102 states have call successors, (102), 27 states have call predecessors, (102), 26 states have return successors, (97), 94 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-16 05:25:07,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 945 transitions. [2023-12-16 05:25:07,350 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 945 transitions. Word has length 78 [2023-12-16 05:25:07,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:25:07,350 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 945 transitions. [2023-12-16 05:25:07,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 05:25:07,350 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 945 transitions. [2023-12-16 05:25:07,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-16 05:25:07,351 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:25:07,352 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:25:07,360 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 05:25:07,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-12-16 05:25:07,560 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:25:07,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:25:07,561 INFO L85 PathProgramCache]: Analyzing trace with hash 890626706, now seen corresponding path program 1 times [2023-12-16 05:25:07,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:25:07,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818850961] [2023-12-16 05:25:07,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:25:07,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:25:07,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:07,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:25:07,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:07,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:07,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:07,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-16 05:25:07,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:07,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 05:25:07,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:07,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:07,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:07,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 05:25:07,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:08,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-16 05:25:08,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:08,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:08,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:08,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:08,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:08,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:25:08,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:08,218 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-16 05:25:08,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:25:08,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818850961] [2023-12-16 05:25:08,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818850961] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:25:08,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247978097] [2023-12-16 05:25:08,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:25:08,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:25:08,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:25:08,220 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 05:25:08,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 05:25:08,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:08,517 INFO L262 TraceCheckSpWp]: Trace formula consists of 1721 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 05:25:08,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:25:08,548 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-16 05:25:08,549 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:25:08,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1247978097] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:25:08,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:25:08,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2023-12-16 05:25:08,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554308953] [2023-12-16 05:25:08,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:25:08,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 05:25:08,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:25:08,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 05:25:08,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-16 05:25:08,556 INFO L87 Difference]: Start difference. First operand 568 states and 945 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 05:25:08,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:25:08,700 INFO L93 Difference]: Finished difference Result 1124 states and 1875 transitions. [2023-12-16 05:25:08,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 05:25:08,700 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 79 [2023-12-16 05:25:08,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:25:08,704 INFO L225 Difference]: With dead ends: 1124 [2023-12-16 05:25:08,704 INFO L226 Difference]: Without dead ends: 568 [2023-12-16 05:25:08,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:25:08,707 INFO L413 NwaCegarLoop]: 908 mSDtfsCounter, 17 mSDsluCounter, 1809 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 2717 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:25:08,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 2717 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 05:25:08,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2023-12-16 05:25:08,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 568. [2023-12-16 05:25:08,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 439 states have (on average 1.6970387243735763) internal successors, (745), 460 states have internal predecessors, (745), 102 states have call successors, (102), 27 states have call predecessors, (102), 26 states have return successors, (97), 94 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-16 05:25:08,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 944 transitions. [2023-12-16 05:25:08,781 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 944 transitions. Word has length 79 [2023-12-16 05:25:08,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:25:08,782 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 944 transitions. [2023-12-16 05:25:08,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 05:25:08,782 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 944 transitions. [2023-12-16 05:25:08,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-16 05:25:08,783 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:25:08,783 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:25:08,794 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-16 05:25:08,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:25:08,992 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:25:08,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:25:08,993 INFO L85 PathProgramCache]: Analyzing trace with hash -666119107, now seen corresponding path program 1 times [2023-12-16 05:25:08,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:25:08,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872534626] [2023-12-16 05:25:08,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:25:08,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:25:09,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:09,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:25:09,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:09,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:09,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:09,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:25:09,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:09,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-16 05:25:09,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:09,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:09,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:09,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 05:25:09,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:09,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-16 05:25:09,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:09,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:09,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:09,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:09,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:09,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:25:09,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:09,773 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-16 05:25:09,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:25:09,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872534626] [2023-12-16 05:25:09,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872534626] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:25:09,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991177479] [2023-12-16 05:25:09,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:25:09,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:25:09,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:25:09,775 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 05:25:09,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 05:25:10,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:10,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 1722 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 05:25:10,130 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:25:10,166 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 05:25:10,166 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:25:10,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991177479] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:25:10,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:25:10,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2023-12-16 05:25:10,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313562392] [2023-12-16 05:25:10,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:25:10,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 05:25:10,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:25:10,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 05:25:10,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-16 05:25:10,168 INFO L87 Difference]: Start difference. First operand 568 states and 944 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 05:25:10,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:25:10,375 INFO L93 Difference]: Finished difference Result 1134 states and 1895 transitions. [2023-12-16 05:25:10,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 05:25:10,376 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 80 [2023-12-16 05:25:10,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:25:10,380 INFO L225 Difference]: With dead ends: 1134 [2023-12-16 05:25:10,380 INFO L226 Difference]: Without dead ends: 568 [2023-12-16 05:25:10,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:25:10,383 INFO L413 NwaCegarLoop]: 858 mSDtfsCounter, 133 mSDsluCounter, 1678 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 2536 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:25:10,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 2536 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 05:25:10,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2023-12-16 05:25:10,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 568. [2023-12-16 05:25:10,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 439 states have (on average 1.6856492027334853) internal successors, (740), 460 states have internal predecessors, (740), 102 states have call successors, (102), 27 states have call predecessors, (102), 26 states have return successors, (97), 94 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-16 05:25:10,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 939 transitions. [2023-12-16 05:25:10,457 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 939 transitions. Word has length 80 [2023-12-16 05:25:10,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:25:10,457 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 939 transitions. [2023-12-16 05:25:10,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 05:25:10,457 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 939 transitions. [2023-12-16 05:25:10,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-16 05:25:10,459 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:25:10,459 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:25:10,468 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-16 05:25:10,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:25:10,669 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:25:10,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:25:10,670 INFO L85 PathProgramCache]: Analyzing trace with hash -395798417, now seen corresponding path program 1 times [2023-12-16 05:25:10,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:25:10,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638088029] [2023-12-16 05:25:10,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:25:10,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:25:10,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:11,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:25:11,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:11,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:11,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:11,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:25:11,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:11,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:25:11,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:11,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:11,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:11,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 05:25:11,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:11,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-16 05:25:11,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:11,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:11,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:11,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:11,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:11,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:25:11,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:11,458 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-16 05:25:11,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:25:11,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638088029] [2023-12-16 05:25:11,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638088029] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:25:11,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896716130] [2023-12-16 05:25:11,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:25:11,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:25:11,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:25:11,461 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 05:25:11,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-16 05:25:11,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:11,791 INFO L262 TraceCheckSpWp]: Trace formula consists of 1724 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 05:25:11,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:25:11,833 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 05:25:11,833 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:25:11,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1896716130] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:25:11,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:25:11,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2023-12-16 05:25:11,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020042117] [2023-12-16 05:25:11,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:25:11,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 05:25:11,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:25:11,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 05:25:11,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-16 05:25:11,835 INFO L87 Difference]: Start difference. First operand 568 states and 939 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 05:25:12,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:25:12,020 INFO L93 Difference]: Finished difference Result 1134 states and 1885 transitions. [2023-12-16 05:25:12,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 05:25:12,021 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 82 [2023-12-16 05:25:12,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:25:12,024 INFO L225 Difference]: With dead ends: 1134 [2023-12-16 05:25:12,024 INFO L226 Difference]: Without dead ends: 568 [2023-12-16 05:25:12,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:25:12,028 INFO L413 NwaCegarLoop]: 858 mSDtfsCounter, 127 mSDsluCounter, 1678 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 2536 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:25:12,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 2536 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 05:25:12,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2023-12-16 05:25:12,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 568. [2023-12-16 05:25:12,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 439 states have (on average 1.674259681093394) internal successors, (735), 460 states have internal predecessors, (735), 102 states have call successors, (102), 27 states have call predecessors, (102), 26 states have return successors, (97), 94 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-16 05:25:12,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 934 transitions. [2023-12-16 05:25:12,101 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 934 transitions. Word has length 82 [2023-12-16 05:25:12,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:25:12,101 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 934 transitions. [2023-12-16 05:25:12,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 05:25:12,101 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 934 transitions. [2023-12-16 05:25:12,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-16 05:25:12,103 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:25:12,103 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:25:12,112 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-16 05:25:12,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:25:12,312 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:25:12,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:25:12,312 INFO L85 PathProgramCache]: Analyzing trace with hash -671062541, now seen corresponding path program 1 times [2023-12-16 05:25:12,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:25:12,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591624336] [2023-12-16 05:25:12,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:25:12,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:25:12,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:12,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:25:12,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:12,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:12,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:12,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:25:12,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:12,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-16 05:25:12,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:12,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:12,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:12,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 05:25:12,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:12,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-16 05:25:12,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:12,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:12,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:12,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:12,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:12,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:25:12,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:12,958 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-16 05:25:12,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:25:12,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591624336] [2023-12-16 05:25:12,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591624336] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:25:12,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1178894289] [2023-12-16 05:25:12,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:25:12,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:25:12,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:25:12,961 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 05:25:12,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-16 05:25:13,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:13,282 INFO L262 TraceCheckSpWp]: Trace formula consists of 1726 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 05:25:13,285 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:25:13,315 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 05:25:13,316 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:25:13,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1178894289] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:25:13,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:25:13,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2023-12-16 05:25:13,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384962058] [2023-12-16 05:25:13,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:25:13,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 05:25:13,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:25:13,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 05:25:13,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-16 05:25:13,317 INFO L87 Difference]: Start difference. First operand 568 states and 934 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 05:25:13,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:25:13,552 INFO L93 Difference]: Finished difference Result 1170 states and 1934 transitions. [2023-12-16 05:25:13,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 05:25:13,552 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 84 [2023-12-16 05:25:13,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:25:13,556 INFO L225 Difference]: With dead ends: 1170 [2023-12-16 05:25:13,556 INFO L226 Difference]: Without dead ends: 618 [2023-12-16 05:25:13,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:25:13,559 INFO L413 NwaCegarLoop]: 868 mSDtfsCounter, 177 mSDsluCounter, 1678 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 2546 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 05:25:13,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 2546 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 05:25:13,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2023-12-16 05:25:13,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 618. [2023-12-16 05:25:13,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 488 states have (on average 1.6782786885245902) internal successors, (819), 509 states have internal predecessors, (819), 102 states have call successors, (102), 28 states have call predecessors, (102), 27 states have return successors, (97), 94 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-16 05:25:13,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 1018 transitions. [2023-12-16 05:25:13,632 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 1018 transitions. Word has length 84 [2023-12-16 05:25:13,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:25:13,632 INFO L495 AbstractCegarLoop]: Abstraction has 618 states and 1018 transitions. [2023-12-16 05:25:13,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 05:25:13,632 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 1018 transitions. [2023-12-16 05:25:13,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-16 05:25:13,634 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:25:13,634 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:25:13,648 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-16 05:25:13,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:25:13,848 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:25:13,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:25:13,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1466907314, now seen corresponding path program 1 times [2023-12-16 05:25:13,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:25:13,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632712137] [2023-12-16 05:25:13,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:25:13,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:25:13,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:14,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:25:14,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:14,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:14,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:14,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:25:14,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:14,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-16 05:25:14,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:14,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:14,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:14,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 05:25:14,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:14,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-16 05:25:14,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:14,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:14,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:14,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:14,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:14,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:25:14,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:14,528 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-16 05:25:14,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:25:14,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632712137] [2023-12-16 05:25:14,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632712137] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:25:14,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [943005078] [2023-12-16 05:25:14,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:25:14,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:25:14,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:25:14,533 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 05:25:14,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-16 05:25:14,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:14,977 INFO L262 TraceCheckSpWp]: Trace formula consists of 1727 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 05:25:14,981 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:25:15,013 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 05:25:15,013 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:25:15,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [943005078] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:25:15,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:25:15,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2023-12-16 05:25:15,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698505978] [2023-12-16 05:25:15,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:25:15,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 05:25:15,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:25:15,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 05:25:15,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-16 05:25:15,015 INFO L87 Difference]: Start difference. First operand 618 states and 1018 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 05:25:15,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:25:15,235 INFO L93 Difference]: Finished difference Result 1184 states and 1957 transitions. [2023-12-16 05:25:15,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 05:25:15,236 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 85 [2023-12-16 05:25:15,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:25:15,239 INFO L225 Difference]: With dead ends: 1184 [2023-12-16 05:25:15,240 INFO L226 Difference]: Without dead ends: 618 [2023-12-16 05:25:15,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:25:15,242 INFO L413 NwaCegarLoop]: 868 mSDtfsCounter, 171 mSDsluCounter, 1678 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 2546 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:25:15,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 2546 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 05:25:15,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2023-12-16 05:25:15,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 618. [2023-12-16 05:25:15,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 488 states have (on average 1.6680327868852458) internal successors, (814), 509 states have internal predecessors, (814), 102 states have call successors, (102), 28 states have call predecessors, (102), 27 states have return successors, (97), 94 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-16 05:25:15,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 1013 transitions. [2023-12-16 05:25:15,316 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 1013 transitions. Word has length 85 [2023-12-16 05:25:15,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:25:15,316 INFO L495 AbstractCegarLoop]: Abstraction has 618 states and 1013 transitions. [2023-12-16 05:25:15,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 05:25:15,316 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 1013 transitions. [2023-12-16 05:25:15,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-16 05:25:15,317 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:25:15,317 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:25:15,328 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-16 05:25:15,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:25:15,529 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:25:15,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:25:15,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1675776335, now seen corresponding path program 1 times [2023-12-16 05:25:15,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:25:15,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198615686] [2023-12-16 05:25:15,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:25:15,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:25:15,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:15,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:25:15,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:15,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:15,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:15,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:25:15,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:15,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-16 05:25:15,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:15,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:15,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:16,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 05:25:16,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:16,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-16 05:25:16,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:16,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:16,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:16,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:16,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:16,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:25:16,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:16,489 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-16 05:25:16,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:25:16,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198615686] [2023-12-16 05:25:16,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198615686] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:25:16,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [586318642] [2023-12-16 05:25:16,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:25:16,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:25:16,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:25:16,490 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 05:25:16,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-16 05:25:16,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:16,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 1723 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 05:25:16,843 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:25:16,928 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 05:25:16,929 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:25:16,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [586318642] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:25:16,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:25:16,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [16] total 20 [2023-12-16 05:25:16,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228875297] [2023-12-16 05:25:16,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:25:16,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 05:25:16,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:25:16,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 05:25:16,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2023-12-16 05:25:16,931 INFO L87 Difference]: Start difference. First operand 618 states and 1013 transitions. Second operand has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 05:25:17,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:25:17,173 INFO L93 Difference]: Finished difference Result 1206 states and 1986 transitions. [2023-12-16 05:25:17,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:25:17,174 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 85 [2023-12-16 05:25:17,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:25:17,178 INFO L225 Difference]: With dead ends: 1206 [2023-12-16 05:25:17,178 INFO L226 Difference]: Without dead ends: 654 [2023-12-16 05:25:17,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2023-12-16 05:25:17,182 INFO L413 NwaCegarLoop]: 889 mSDtfsCounter, 171 mSDsluCounter, 5236 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 6125 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:25:17,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 6125 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 05:25:17,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2023-12-16 05:25:17,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 636. [2023-12-16 05:25:17,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 503 states have (on average 1.6679920477137178) internal successors, (839), 526 states have internal predecessors, (839), 103 states have call successors, (103), 28 states have call predecessors, (103), 29 states have return successors, (100), 95 states have call predecessors, (100), 98 states have call successors, (100) [2023-12-16 05:25:17,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 1042 transitions. [2023-12-16 05:25:17,291 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 1042 transitions. Word has length 85 [2023-12-16 05:25:17,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:25:17,291 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 1042 transitions. [2023-12-16 05:25:17,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 05:25:17,291 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 1042 transitions. [2023-12-16 05:25:17,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-16 05:25:17,293 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:25:17,293 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:25:17,307 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-16 05:25:17,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-16 05:25:17,502 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:25:17,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:25:17,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1232164912, now seen corresponding path program 1 times [2023-12-16 05:25:17,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:25:17,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625818845] [2023-12-16 05:25:17,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:25:17,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:25:17,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:17,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:25:17,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:17,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:17,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:17,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:25:17,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:17,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-16 05:25:17,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:17,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:17,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:17,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 05:25:17,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:18,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-16 05:25:18,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:18,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:18,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:18,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:18,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:18,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:25:18,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:18,172 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-16 05:25:18,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:25:18,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625818845] [2023-12-16 05:25:18,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625818845] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:25:18,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [144683492] [2023-12-16 05:25:18,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:25:18,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:25:18,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:25:18,174 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 05:25:18,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-16 05:25:18,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:18,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 1722 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 05:25:18,489 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:25:18,552 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-16 05:25:18,552 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:25:18,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [144683492] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:25:18,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:25:18,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2023-12-16 05:25:18,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241893987] [2023-12-16 05:25:18,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:25:18,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:25:18,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:25:18,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:25:18,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-16 05:25:18,554 INFO L87 Difference]: Start difference. First operand 636 states and 1042 transitions. Second operand has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 05:25:18,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:25:18,745 INFO L93 Difference]: Finished difference Result 1144 states and 1886 transitions. [2023-12-16 05:25:18,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 05:25:18,746 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 85 [2023-12-16 05:25:18,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:25:18,750 INFO L225 Difference]: With dead ends: 1144 [2023-12-16 05:25:18,750 INFO L226 Difference]: Without dead ends: 658 [2023-12-16 05:25:18,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-16 05:25:18,753 INFO L413 NwaCegarLoop]: 901 mSDtfsCounter, 132 mSDsluCounter, 4406 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 5307 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:25:18,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 5307 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 05:25:18,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2023-12-16 05:25:18,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 654. [2023-12-16 05:25:18,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 518 states have (on average 1.667953667953668) internal successors, (864), 543 states have internal predecessors, (864), 104 states have call successors, (104), 28 states have call predecessors, (104), 31 states have return successors, (103), 96 states have call predecessors, (103), 99 states have call successors, (103) [2023-12-16 05:25:18,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 1071 transitions. [2023-12-16 05:25:18,846 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 1071 transitions. Word has length 85 [2023-12-16 05:25:18,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:25:18,846 INFO L495 AbstractCegarLoop]: Abstraction has 654 states and 1071 transitions. [2023-12-16 05:25:18,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 05:25:18,847 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 1071 transitions. [2023-12-16 05:25:18,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-16 05:25:18,848 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:25:18,848 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:25:18,862 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-16 05:25:19,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:25:19,061 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:25:19,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:25:19,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1114094992, now seen corresponding path program 1 times [2023-12-16 05:25:19,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:25:19,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429640848] [2023-12-16 05:25:19,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:25:19,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:25:19,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:19,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:25:19,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:19,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:19,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:19,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:25:19,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:19,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-16 05:25:19,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:19,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:19,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:19,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 05:25:19,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:19,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-16 05:25:19,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:19,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:19,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:19,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:19,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:19,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:25:19,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:19,680 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-16 05:25:19,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:25:19,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429640848] [2023-12-16 05:25:19,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429640848] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:25:19,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1940664776] [2023-12-16 05:25:19,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:25:19,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:25:19,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:25:19,685 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 05:25:19,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-16 05:25:19,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:19,991 INFO L262 TraceCheckSpWp]: Trace formula consists of 1723 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 05:25:19,994 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:25:20,066 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-16 05:25:20,066 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:25:20,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1940664776] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:25:20,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:25:20,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2023-12-16 05:25:20,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803003684] [2023-12-16 05:25:20,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:25:20,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:25:20,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:25:20,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:25:20,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-16 05:25:20,068 INFO L87 Difference]: Start difference. First operand 654 states and 1071 transitions. Second operand has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 05:25:20,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:25:20,240 INFO L93 Difference]: Finished difference Result 1172 states and 1935 transitions. [2023-12-16 05:25:20,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 05:25:20,240 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 86 [2023-12-16 05:25:20,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:25:20,244 INFO L225 Difference]: With dead ends: 1172 [2023-12-16 05:25:20,244 INFO L226 Difference]: Without dead ends: 686 [2023-12-16 05:25:20,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-16 05:25:20,247 INFO L413 NwaCegarLoop]: 901 mSDtfsCounter, 141 mSDsluCounter, 4396 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 5297 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:25:20,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 5297 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 05:25:20,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2023-12-16 05:25:20,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 654. [2023-12-16 05:25:20,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 518 states have (on average 1.667953667953668) internal successors, (864), 543 states have internal predecessors, (864), 104 states have call successors, (104), 28 states have call predecessors, (104), 31 states have return successors, (103), 96 states have call predecessors, (103), 99 states have call successors, (103) [2023-12-16 05:25:20,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 1071 transitions. [2023-12-16 05:25:20,353 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 1071 transitions. Word has length 86 [2023-12-16 05:25:20,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:25:20,353 INFO L495 AbstractCegarLoop]: Abstraction has 654 states and 1071 transitions. [2023-12-16 05:25:20,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 05:25:20,353 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 1071 transitions. [2023-12-16 05:25:20,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-16 05:25:20,355 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:25:20,355 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:25:20,366 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-16 05:25:20,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-16 05:25:20,564 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:25:20,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:25:20,564 INFO L85 PathProgramCache]: Analyzing trace with hash -490916368, now seen corresponding path program 1 times [2023-12-16 05:25:20,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:25:20,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587299613] [2023-12-16 05:25:20,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:25:20,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:25:20,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:20,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:25:20,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:20,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:20,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:20,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:25:20,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:20,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-16 05:25:20,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:20,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:20,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:20,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 05:25:20,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:21,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-16 05:25:21,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:21,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:21,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:21,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:21,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:21,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:25:21,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:21,129 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-16 05:25:21,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:25:21,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587299613] [2023-12-16 05:25:21,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587299613] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:25:21,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372502150] [2023-12-16 05:25:21,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:25:21,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:25:21,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:25:21,131 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 05:25:21,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-16 05:25:21,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:21,424 INFO L262 TraceCheckSpWp]: Trace formula consists of 1719 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 05:25:21,427 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:25:21,511 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-16 05:25:21,512 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:25:21,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372502150] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:25:21,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:25:21,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2023-12-16 05:25:21,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096988208] [2023-12-16 05:25:21,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:25:21,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 05:25:21,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:25:21,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 05:25:21,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2023-12-16 05:25:21,514 INFO L87 Difference]: Start difference. First operand 654 states and 1071 transitions. Second operand has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 05:25:21,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:25:21,777 INFO L93 Difference]: Finished difference Result 1158 states and 1910 transitions. [2023-12-16 05:25:21,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:25:21,777 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 86 [2023-12-16 05:25:21,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:25:21,781 INFO L225 Difference]: With dead ends: 1158 [2023-12-16 05:25:21,782 INFO L226 Difference]: Without dead ends: 672 [2023-12-16 05:25:21,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2023-12-16 05:25:21,785 INFO L413 NwaCegarLoop]: 891 mSDtfsCounter, 171 mSDsluCounter, 5242 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 6133 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:25:21,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 6133 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 05:25:21,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2023-12-16 05:25:21,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 654. [2023-12-16 05:25:21,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 518 states have (on average 1.667953667953668) internal successors, (864), 543 states have internal predecessors, (864), 104 states have call successors, (104), 28 states have call predecessors, (104), 31 states have return successors, (103), 96 states have call predecessors, (103), 99 states have call successors, (103) [2023-12-16 05:25:21,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 1071 transitions. [2023-12-16 05:25:21,879 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 1071 transitions. Word has length 86 [2023-12-16 05:25:21,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:25:21,879 INFO L495 AbstractCegarLoop]: Abstraction has 654 states and 1071 transitions. [2023-12-16 05:25:21,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 05:25:21,879 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 1071 transitions. [2023-12-16 05:25:21,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-16 05:25:21,881 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:25:21,881 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:25:21,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-16 05:25:22,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-16 05:25:22,093 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:25:22,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:25:22,093 INFO L85 PathProgramCache]: Analyzing trace with hash -728630363, now seen corresponding path program 1 times [2023-12-16 05:25:22,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:25:22,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409532601] [2023-12-16 05:25:22,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:25:22,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:25:22,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:22,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:25:22,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:22,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:22,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:22,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:25:22,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:22,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-16 05:25:22,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:22,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:22,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:22,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 05:25:22,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:22,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-16 05:25:22,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:22,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:22,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:22,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:22,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:22,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:25:22,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:22,626 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-16 05:25:22,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:25:22,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409532601] [2023-12-16 05:25:22,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409532601] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:25:22,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391222007] [2023-12-16 05:25:22,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:25:22,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:25:22,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:25:22,628 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 05:25:22,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-16 05:25:22,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:22,906 INFO L262 TraceCheckSpWp]: Trace formula consists of 1723 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 05:25:22,909 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:25:22,931 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-16 05:25:22,931 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:25:22,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [391222007] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:25:22,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:25:22,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2023-12-16 05:25:22,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644545722] [2023-12-16 05:25:22,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:25:22,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 05:25:22,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:25:22,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 05:25:22,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 05:25:22,933 INFO L87 Difference]: Start difference. First operand 654 states and 1071 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 05:25:23,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:25:23,063 INFO L93 Difference]: Finished difference Result 1210 states and 1995 transitions. [2023-12-16 05:25:23,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 05:25:23,064 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 86 [2023-12-16 05:25:23,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:25:23,068 INFO L225 Difference]: With dead ends: 1210 [2023-12-16 05:25:23,068 INFO L226 Difference]: Without dead ends: 654 [2023-12-16 05:25:23,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:25:23,071 INFO L413 NwaCegarLoop]: 897 mSDtfsCounter, 23 mSDsluCounter, 1789 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 2686 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:25:23,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 2686 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 05:25:23,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2023-12-16 05:25:23,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 654. [2023-12-16 05:25:23,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 518 states have (on average 1.6602316602316602) internal successors, (860), 543 states have internal predecessors, (860), 104 states have call successors, (104), 28 states have call predecessors, (104), 31 states have return successors, (103), 96 states have call predecessors, (103), 99 states have call successors, (103) [2023-12-16 05:25:23,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 1067 transitions. [2023-12-16 05:25:23,173 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 1067 transitions. Word has length 86 [2023-12-16 05:25:23,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:25:23,173 INFO L495 AbstractCegarLoop]: Abstraction has 654 states and 1067 transitions. [2023-12-16 05:25:23,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 05:25:23,174 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 1067 transitions. [2023-12-16 05:25:23,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-16 05:25:23,175 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:25:23,175 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:25:23,184 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-12-16 05:25:23,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-12-16 05:25:23,376 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:25:23,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:25:23,377 INFO L85 PathProgramCache]: Analyzing trace with hash -289784392, now seen corresponding path program 1 times [2023-12-16 05:25:23,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:25:23,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704995317] [2023-12-16 05:25:23,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:25:23,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:25:23,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:23,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:25:23,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:23,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:23,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:23,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:25:23,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:23,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-16 05:25:23,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:23,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:23,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:23,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 05:25:23,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:24,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 05:25:24,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:24,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:24,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:24,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:24,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:24,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:25:24,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:24,021 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-16 05:25:24,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:25:24,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704995317] [2023-12-16 05:25:24,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704995317] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:25:24,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742221054] [2023-12-16 05:25:24,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:25:24,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:25:24,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:25:24,025 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 05:25:24,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-16 05:25:24,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:24,306 INFO L262 TraceCheckSpWp]: Trace formula consists of 1720 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 05:25:24,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:25:24,393 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-16 05:25:24,393 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:25:24,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [742221054] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:25:24,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:25:24,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2023-12-16 05:25:24,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033596257] [2023-12-16 05:25:24,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:25:24,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 05:25:24,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:25:24,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 05:25:24,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2023-12-16 05:25:24,395 INFO L87 Difference]: Start difference. First operand 654 states and 1067 transitions. Second operand has 8 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 05:25:24,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:25:24,620 INFO L93 Difference]: Finished difference Result 1158 states and 1907 transitions. [2023-12-16 05:25:24,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:25:24,624 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 87 [2023-12-16 05:25:24,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:25:24,628 INFO L225 Difference]: With dead ends: 1158 [2023-12-16 05:25:24,628 INFO L226 Difference]: Without dead ends: 672 [2023-12-16 05:25:24,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2023-12-16 05:25:24,631 INFO L413 NwaCegarLoop]: 885 mSDtfsCounter, 179 mSDsluCounter, 5204 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 6089 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:25:24,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 6089 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 05:25:24,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2023-12-16 05:25:24,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 654. [2023-12-16 05:25:24,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 518 states have (on average 1.6602316602316602) internal successors, (860), 543 states have internal predecessors, (860), 104 states have call successors, (104), 28 states have call predecessors, (104), 31 states have return successors, (103), 96 states have call predecessors, (103), 99 states have call successors, (103) [2023-12-16 05:25:24,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 1067 transitions. [2023-12-16 05:25:24,744 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 1067 transitions. Word has length 87 [2023-12-16 05:25:24,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:25:24,744 INFO L495 AbstractCegarLoop]: Abstraction has 654 states and 1067 transitions. [2023-12-16 05:25:24,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 05:25:24,744 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 1067 transitions. [2023-12-16 05:25:24,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-16 05:25:24,746 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:25:24,746 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:25:24,756 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-16 05:25:24,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-12-16 05:25:24,956 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:25:24,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:25:24,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1483061045, now seen corresponding path program 1 times [2023-12-16 05:25:24,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:25:24,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120247035] [2023-12-16 05:25:24,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:25:24,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:25:24,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:25,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:25:25,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:25,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:25,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:25,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:25:25,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:25,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-16 05:25:25,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:25,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:25,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:25,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 05:25:25,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:25,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-16 05:25:25,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:25,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:25,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:25,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:25,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:25,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:25:25,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:25,555 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-16 05:25:25,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:25:25,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120247035] [2023-12-16 05:25:25,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120247035] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:25:25,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45144023] [2023-12-16 05:25:25,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:25:25,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:25:25,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:25:25,558 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 05:25:25,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-16 05:25:25,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:25,853 INFO L262 TraceCheckSpWp]: Trace formula consists of 1721 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 05:25:25,855 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:25:25,884 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-16 05:25:25,884 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:25:25,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [45144023] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:25:25,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:25:25,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 13 [2023-12-16 05:25:25,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118633505] [2023-12-16 05:25:25,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:25:25,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 05:25:25,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:25:25,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 05:25:25,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:25:25,885 INFO L87 Difference]: Start difference. First operand 654 states and 1067 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 05:25:26,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:25:26,018 INFO L93 Difference]: Finished difference Result 1256 states and 2065 transitions. [2023-12-16 05:25:26,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 05:25:26,019 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 88 [2023-12-16 05:25:26,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:25:26,022 INFO L225 Difference]: With dead ends: 1256 [2023-12-16 05:25:26,022 INFO L226 Difference]: Without dead ends: 682 [2023-12-16 05:25:26,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2023-12-16 05:25:26,025 INFO L413 NwaCegarLoop]: 892 mSDtfsCounter, 14 mSDsluCounter, 1773 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2665 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:25:26,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2665 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 05:25:26,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2023-12-16 05:25:26,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 678. [2023-12-16 05:25:26,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 542 states have (on average 1.6383763837638377) internal successors, (888), 567 states have internal predecessors, (888), 104 states have call successors, (104), 28 states have call predecessors, (104), 31 states have return successors, (103), 96 states have call predecessors, (103), 99 states have call successors, (103) [2023-12-16 05:25:26,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 1095 transitions. [2023-12-16 05:25:26,103 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 1095 transitions. Word has length 88 [2023-12-16 05:25:26,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:25:26,103 INFO L495 AbstractCegarLoop]: Abstraction has 678 states and 1095 transitions. [2023-12-16 05:25:26,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 05:25:26,104 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 1095 transitions. [2023-12-16 05:25:26,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-16 05:25:26,105 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:25:26,105 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:25:26,119 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-12-16 05:25:26,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:25:26,314 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:25:26,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:25:26,315 INFO L85 PathProgramCache]: Analyzing trace with hash -470558838, now seen corresponding path program 1 times [2023-12-16 05:25:26,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:25:26,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393784793] [2023-12-16 05:25:26,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:25:26,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:25:26,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:26,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:25:26,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:26,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:26,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:26,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:25:26,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:26,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-16 05:25:26,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:26,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:26,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:26,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:25:26,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:26,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-16 05:25:26,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:26,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:26,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:26,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:26,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:26,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:25:26,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:26,833 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-16 05:25:26,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:25:26,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393784793] [2023-12-16 05:25:26,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393784793] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:25:26,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212409160] [2023-12-16 05:25:26,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:25:26,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:25:26,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:25:26,838 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 05:25:26,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-16 05:25:27,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:27,108 INFO L262 TraceCheckSpWp]: Trace formula consists of 1724 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 05:25:27,110 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:25:27,386 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-16 05:25:27,386 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:25:27,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1212409160] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:25:27,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:25:27,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2023-12-16 05:25:27,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506988411] [2023-12-16 05:25:27,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:25:27,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:25:27,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:25:27,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:25:27,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-12-16 05:25:27,388 INFO L87 Difference]: Start difference. First operand 678 states and 1095 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 4 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 05:25:30,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:25:30,238 INFO L93 Difference]: Finished difference Result 2211 states and 3680 transitions. [2023-12-16 05:25:30,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 05:25:30,238 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 4 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 88 [2023-12-16 05:25:30,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:25:30,247 INFO L225 Difference]: With dead ends: 2211 [2023-12-16 05:25:30,248 INFO L226 Difference]: Without dead ends: 1730 [2023-12-16 05:25:30,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-12-16 05:25:30,250 INFO L413 NwaCegarLoop]: 593 mSDtfsCounter, 3247 mSDsluCounter, 1134 mSDsCounter, 0 mSdLazyCounter, 3887 mSolverCounterSat, 575 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3431 SdHoareTripleChecker+Valid, 1727 SdHoareTripleChecker+Invalid, 4462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 575 IncrementalHoareTripleChecker+Valid, 3887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-16 05:25:30,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3431 Valid, 1727 Invalid, 4462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [575 Valid, 3887 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-16 05:25:30,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2023-12-16 05:25:30,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1543. [2023-12-16 05:25:30,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1218 states have (on average 1.6748768472906403) internal successors, (2040), 1261 states have internal predecessors, (2040), 259 states have call successors, (259), 60 states have call predecessors, (259), 65 states have return successors, (268), 236 states have call predecessors, (268), 254 states have call successors, (268) [2023-12-16 05:25:30,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2567 transitions. [2023-12-16 05:25:30,453 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2567 transitions. Word has length 88 [2023-12-16 05:25:30,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:25:30,455 INFO L495 AbstractCegarLoop]: Abstraction has 1543 states and 2567 transitions. [2023-12-16 05:25:30,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 4 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 05:25:30,455 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2567 transitions. [2023-12-16 05:25:30,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-16 05:25:30,460 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:25:30,461 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:25:30,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-12-16 05:25:30,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-12-16 05:25:30,670 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:25:30,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:25:30,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1313924825, now seen corresponding path program 1 times [2023-12-16 05:25:30,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:25:30,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134807663] [2023-12-16 05:25:30,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:25:30,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:25:30,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:30,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:25:30,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:30,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:30,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:30,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:25:30,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:30,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-16 05:25:30,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:30,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:30,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:30,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:25:30,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:31,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-16 05:25:31,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:31,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:31,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:31,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:31,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:31,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-16 05:25:31,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:31,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:31,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:31,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:31,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:31,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:25:31,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:31,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 05:25:31,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:31,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:31,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:31,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:31,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:31,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:25:31,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:31,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-16 05:25:31,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:31,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-16 05:25:31,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:31,558 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-16 05:25:31,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:25:31,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134807663] [2023-12-16 05:25:31,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134807663] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:25:31,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054288329] [2023-12-16 05:25:31,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:25:31,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:25:31,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:25:31,562 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 05:25:31,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-16 05:25:31,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:31,898 INFO L262 TraceCheckSpWp]: Trace formula consists of 2088 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 05:25:31,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:25:32,060 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-16 05:25:32,060 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:25:32,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2054288329] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:25:32,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:25:32,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2023-12-16 05:25:32,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628372753] [2023-12-16 05:25:32,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:25:32,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 05:25:32,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:25:32,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 05:25:32,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2023-12-16 05:25:32,062 INFO L87 Difference]: Start difference. First operand 1543 states and 2567 transitions. Second operand has 8 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 5 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2023-12-16 05:25:34,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:25:34,992 INFO L93 Difference]: Finished difference Result 4112 states and 6897 transitions. [2023-12-16 05:25:34,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 05:25:34,993 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 5 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) Word has length 138 [2023-12-16 05:25:34,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:25:35,010 INFO L225 Difference]: With dead ends: 4112 [2023-12-16 05:25:35,010 INFO L226 Difference]: Without dead ends: 2608 [2023-12-16 05:25:35,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=96, Invalid=504, Unknown=0, NotChecked=0, Total=600 [2023-12-16 05:25:35,018 INFO L413 NwaCegarLoop]: 386 mSDtfsCounter, 1800 mSDsluCounter, 1444 mSDsCounter, 0 mSdLazyCounter, 5189 mSolverCounterSat, 300 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1883 SdHoareTripleChecker+Valid, 1830 SdHoareTripleChecker+Invalid, 5489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 300 IncrementalHoareTripleChecker+Valid, 5189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-16 05:25:35,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1883 Valid, 1830 Invalid, 5489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [300 Valid, 5189 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-16 05:25:35,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2608 states. [2023-12-16 05:25:35,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2608 to 2396. [2023-12-16 05:25:35,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2396 states, 1862 states have (on average 1.6578947368421053) internal successors, (3087), 1914 states have internal predecessors, (3087), 425 states have call successors, (425), 89 states have call predecessors, (425), 108 states have return successors, (468), 403 states have call predecessors, (468), 420 states have call successors, (468) [2023-12-16 05:25:35,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2396 states to 2396 states and 3980 transitions. [2023-12-16 05:25:35,352 INFO L78 Accepts]: Start accepts. Automaton has 2396 states and 3980 transitions. Word has length 138 [2023-12-16 05:25:35,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:25:35,352 INFO L495 AbstractCegarLoop]: Abstraction has 2396 states and 3980 transitions. [2023-12-16 05:25:35,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 5 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2023-12-16 05:25:35,353 INFO L276 IsEmpty]: Start isEmpty. Operand 2396 states and 3980 transitions. [2023-12-16 05:25:35,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-16 05:25:35,357 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:25:35,357 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:25:35,371 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-12-16 05:25:35,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-12-16 05:25:35,566 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:25:35,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:25:35,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1227604761, now seen corresponding path program 1 times [2023-12-16 05:25:35,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:25:35,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87878451] [2023-12-16 05:25:35,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:25:35,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:25:35,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:35,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:25:35,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:35,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:35,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:35,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:25:35,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:35,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-16 05:25:35,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:35,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:35,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:25:35,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:36,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-16 05:25:36,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:36,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:36,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:36,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:36,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:36,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 05:25:36,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:36,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:36,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:36,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:36,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:36,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:25:36,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:36,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 05:25:36,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:36,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:36,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:36,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:36,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:36,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:25:36,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:36,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-16 05:25:36,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:36,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-16 05:25:36,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:36,412 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-16 05:25:36,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:25:36,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87878451] [2023-12-16 05:25:36,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87878451] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:25:36,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [436628195] [2023-12-16 05:25:36,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:25:36,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:25:36,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:25:36,414 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 05:25:36,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-16 05:25:36,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:36,752 INFO L262 TraceCheckSpWp]: Trace formula consists of 2085 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 05:25:36,755 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:25:36,868 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-16 05:25:36,869 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:25:36,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [436628195] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:25:36,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:25:36,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-12-16 05:25:36,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967887062] [2023-12-16 05:25:36,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:25:36,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 05:25:36,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:25:36,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 05:25:36,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-12-16 05:25:36,870 INFO L87 Difference]: Start difference. First operand 2396 states and 3980 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-16 05:25:37,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:25:37,531 INFO L93 Difference]: Finished difference Result 4643 states and 7890 transitions. [2023-12-16 05:25:37,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 05:25:37,532 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 139 [2023-12-16 05:25:37,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:25:37,546 INFO L225 Difference]: With dead ends: 4643 [2023-12-16 05:25:37,547 INFO L226 Difference]: Without dead ends: 2444 [2023-12-16 05:25:37,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-12-16 05:25:37,559 INFO L413 NwaCegarLoop]: 878 mSDtfsCounter, 867 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 885 SdHoareTripleChecker+Valid, 2267 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 05:25:37,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [885 Valid, 2267 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 05:25:37,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2444 states. [2023-12-16 05:25:37,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2444 to 2444. [2023-12-16 05:25:37,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2444 states, 1904 states have (on average 1.659138655462185) internal successors, (3159), 1956 states have internal predecessors, (3159), 425 states have call successors, (425), 95 states have call predecessors, (425), 114 states have return successors, (473), 403 states have call predecessors, (473), 420 states have call successors, (473) [2023-12-16 05:25:37,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2444 states to 2444 states and 4057 transitions. [2023-12-16 05:25:37,905 INFO L78 Accepts]: Start accepts. Automaton has 2444 states and 4057 transitions. Word has length 139 [2023-12-16 05:25:37,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:25:37,905 INFO L495 AbstractCegarLoop]: Abstraction has 2444 states and 4057 transitions. [2023-12-16 05:25:37,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-16 05:25:37,906 INFO L276 IsEmpty]: Start isEmpty. Operand 2444 states and 4057 transitions. [2023-12-16 05:25:37,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 05:25:37,910 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:25:37,910 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:25:37,919 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-12-16 05:25:38,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:25:38,119 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:25:38,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:25:38,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1092394865, now seen corresponding path program 1 times [2023-12-16 05:25:38,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:25:38,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698098225] [2023-12-16 05:25:38,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:25:38,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:25:38,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:38,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:25:38,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:38,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:38,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:38,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:25:38,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:38,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-16 05:25:38,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:38,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:38,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:38,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:25:38,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:38,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-16 05:25:38,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:38,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:38,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:38,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:38,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:38,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 05:25:38,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:38,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:38,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:38,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:38,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:38,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-16 05:25:38,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:38,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:25:38,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:38,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:38,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:38,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:38,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:38,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-16 05:25:38,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:38,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-16 05:25:38,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:38,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-16 05:25:38,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:38,973 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-16 05:25:38,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:25:38,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698098225] [2023-12-16 05:25:38,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698098225] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:25:38,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173660497] [2023-12-16 05:25:38,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:25:38,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:25:38,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:25:38,977 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 05:25:38,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-12-16 05:25:39,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:39,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 2087 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 05:25:39,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:25:39,404 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-16 05:25:39,404 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:25:39,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [173660497] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:25:39,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:25:39,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-12-16 05:25:39,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176200427] [2023-12-16 05:25:39,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:25:39,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 05:25:39,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:25:39,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 05:25:39,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-12-16 05:25:39,406 INFO L87 Difference]: Start difference. First operand 2444 states and 4057 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-16 05:25:40,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:25:40,064 INFO L93 Difference]: Finished difference Result 4739 states and 8028 transitions. [2023-12-16 05:25:40,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 05:25:40,065 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 141 [2023-12-16 05:25:40,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:25:40,076 INFO L225 Difference]: With dead ends: 4739 [2023-12-16 05:25:40,076 INFO L226 Difference]: Without dead ends: 2492 [2023-12-16 05:25:40,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-12-16 05:25:40,086 INFO L413 NwaCegarLoop]: 878 mSDtfsCounter, 864 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 2267 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 05:25:40,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [882 Valid, 2267 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 05:25:40,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2492 states. [2023-12-16 05:25:40,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2492 to 2492. [2023-12-16 05:25:40,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2492 states, 1946 states have (on average 1.6603288797533402) internal successors, (3231), 1998 states have internal predecessors, (3231), 425 states have call successors, (425), 101 states have call predecessors, (425), 120 states have return successors, (478), 403 states have call predecessors, (478), 420 states have call successors, (478) [2023-12-16 05:25:40,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2492 states to 2492 states and 4134 transitions. [2023-12-16 05:25:40,408 INFO L78 Accepts]: Start accepts. Automaton has 2492 states and 4134 transitions. Word has length 141 [2023-12-16 05:25:40,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:25:40,408 INFO L495 AbstractCegarLoop]: Abstraction has 2492 states and 4134 transitions. [2023-12-16 05:25:40,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-16 05:25:40,409 INFO L276 IsEmpty]: Start isEmpty. Operand 2492 states and 4134 transitions. [2023-12-16 05:25:40,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-16 05:25:40,413 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:25:40,413 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:25:40,422 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-12-16 05:25:40,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:25:40,622 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:25:40,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:25:40,622 INFO L85 PathProgramCache]: Analyzing trace with hash 339302247, now seen corresponding path program 1 times [2023-12-16 05:25:40,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:25:40,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210209750] [2023-12-16 05:25:40,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:25:40,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:25:40,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:40,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:25:40,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:40,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:40,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:40,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:25:40,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:40,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-16 05:25:40,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:25:40,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:25:40,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2023-12-16 05:25:40,905 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 05:25:40,905 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 05:25:40,905 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 05:25:40,906 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 05:25:40,906 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 05:25:40,906 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 05:25:40,906 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 05:25:40,908 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 05:25:40,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-16 05:25:40,909 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 144 with TraceHistMax 3,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while NestedInterpolantsBuilder was constructing predicates for 8 interpolants. [2023-12-16 05:25:40,912 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:25:40,914 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 05:25:40,916 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:25:40 BoogieIcfgContainer [2023-12-16 05:25:40,916 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 05:25:40,917 INFO L158 Benchmark]: Toolchain (without parser) took 52110.77ms. Allocated memory was 350.2MB in the beginning and 769.7MB in the end (delta: 419.4MB). Free memory was 298.1MB in the beginning and 709.4MB in the end (delta: -411.3MB). Peak memory consumption was 453.2MB. Max. memory is 8.0GB. [2023-12-16 05:25:40,917 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 226.5MB. Free memory is still 178.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 05:25:40,917 INFO L158 Benchmark]: CACSL2BoogieTranslator took 726.49ms. Allocated memory is still 350.2MB. Free memory was 297.6MB in the beginning and 253.5MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 8.0GB. [2023-12-16 05:25:40,917 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.07ms. Allocated memory is still 350.2MB. Free memory was 253.5MB in the beginning and 247.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-16 05:25:40,917 INFO L158 Benchmark]: Boogie Preprocessor took 116.68ms. Allocated memory is still 350.2MB. Free memory was 247.2MB in the beginning and 239.4MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2023-12-16 05:25:40,918 INFO L158 Benchmark]: RCFGBuilder took 1394.71ms. Allocated memory is still 350.2MB. Free memory was 239.4MB in the beginning and 225.8MB in the end (delta: 13.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-12-16 05:25:40,918 INFO L158 Benchmark]: TraceAbstraction took 49777.89ms. Allocated memory was 350.2MB in the beginning and 769.7MB in the end (delta: 419.4MB). Free memory was 225.3MB in the beginning and 709.4MB in the end (delta: -484.1MB). Peak memory consumption was 380.9MB. Max. memory is 8.0GB. [2023-12-16 05:25:40,919 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 226.5MB. Free memory is still 178.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 726.49ms. Allocated memory is still 350.2MB. Free memory was 297.6MB in the beginning and 253.5MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 90.07ms. Allocated memory is still 350.2MB. Free memory was 253.5MB in the beginning and 247.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 116.68ms. Allocated memory is still 350.2MB. Free memory was 247.2MB in the beginning and 239.4MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * RCFGBuilder took 1394.71ms. Allocated memory is still 350.2MB. Free memory was 239.4MB in the beginning and 225.8MB in the end (delta: 13.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * TraceAbstraction took 49777.89ms. Allocated memory was 350.2MB in the beginning and 769.7MB in the end (delta: 419.4MB). Free memory was 225.3MB in the beginning and 709.4MB in the end (delta: -484.1MB). Peak memory consumption was 380.9MB. 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,"Test.i","") [48] - GenericResultAtLocation [Line: 412]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [412] - GenericResultAtLocation [Line: 532]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [532] - GenericResultAtLocation [Line: 567]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [567] - GenericResultAtLocation [Line: 755]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [755] - GenericResultAtLocation [Line: 1426]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [1426] - GenericResultAtLocation [Line: 1518]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1518] - GenericResultAtLocation [Line: 3108]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3108] - GenericResultAtLocation [Line: 3117]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [3117] - GenericResultAtLocation [Line: 3130]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [3130] * 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: 3113]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 3113). Cancelled while NwaCegarLoop was analyzing trace of length 144 with TraceHistMax 3,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while NestedInterpolantsBuilder was constructing predicates for 8 interpolants. - StatisticsResult: Ultimate Automizer benchmark data CFG has 27 procedures, 563 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 49.7s, OverallIterations: 21, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 20.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10578 SdHoareTripleChecker+Valid, 15.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10098 mSDsluCounter, 62051 SdHoareTripleChecker+Invalid, 13.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 46468 mSDsCounter, 1368 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18608 IncrementalHoareTripleChecker+Invalid, 19976 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1368 mSolverCounterUnsat, 15583 mSDtfsCounter, 18608 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2269 GetRequests, 2064 SyntacticMatches, 0 SemanticMatches, 205 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 12.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2492occurred in iteration=20, InterpolantAutomatonStates: 132, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.7s AutomataMinimizationTime, 20 MinimizatonAttempts, 813 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.1s SsaConstructionTime, 3.5s SatisfiabilityAnalysisTime, 15.7s InterpolantComputationTime, 3495 NumberOfCodeBlocks, 3495 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 3457 ConstructedInterpolants, 0 QuantifiedInterpolants, 22022 SizeOfPredicates, 34 NumberOfNonLiveVariables, 32094 ConjunctsInSsa, 95 ConjunctsInUnsatCore, 38 InterpolantComputations, 20 PerfectInterpolantSequences, 570/693 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