./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product27.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7abfb9176afcd07735578408e79f372120c27df81ffb5983e2784997c7f45a43 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 19:17:20,818 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 19:17:20,858 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 19:17:20,861 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 19:17:20,861 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 19:17:20,878 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 19:17:20,878 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 19:17:20,879 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 19:17:20,879 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 19:17:20,879 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 19:17:20,880 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 19:17:20,880 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 19:17:20,880 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 19:17:20,881 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 19:17:20,881 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 19:17:20,881 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 19:17:20,882 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 19:17:20,882 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 19:17:20,882 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 19:17:20,882 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 19:17:20,883 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 19:17:20,883 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 19:17:20,883 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 19:17:20,884 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 19:17:20,884 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 19:17:20,884 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 19:17:20,884 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 19:17:20,884 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 19:17:20,885 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 19:17:20,885 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 19:17:20,885 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 19:17:20,885 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 19:17:20,886 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 19:17:20,886 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 19:17:20,886 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 19:17:20,886 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 19:17:20,887 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 19:17:20,887 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 19:17:20,887 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 19:17:20,887 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 19:17:20,888 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 19:17:20,888 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 19:17:20,888 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7abfb9176afcd07735578408e79f372120c27df81ffb5983e2784997c7f45a43 [2024-10-12 19:17:21,050 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 19:17:21,066 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 19:17:21,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 19:17:21,069 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 19:17:21,069 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 19:17:21,070 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product27.cil.c [2024-10-12 19:17:22,415 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 19:17:22,696 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 19:17:22,696 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product27.cil.c [2024-10-12 19:17:22,717 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c4a13cea/5dc7ffdba16f4b1095a837589b7801fe/FLAG4bc0e4bda [2024-10-12 19:17:22,996 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c4a13cea/5dc7ffdba16f4b1095a837589b7801fe [2024-10-12 19:17:22,999 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 19:17:23,000 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 19:17:23,001 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 19:17:23,001 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 19:17:23,006 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 19:17:23,007 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:17:22" (1/1) ... [2024-10-12 19:17:23,010 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79c40117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:17:23, skipping insertion in model container [2024-10-12 19:17:23,010 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:17:22" (1/1) ... [2024-10-12 19:17:23,110 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 19:17:23,312 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product27.cil.c[16494,16507] [2024-10-12 19:17:23,446 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 19:17:23,468 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 19:17:23,484 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2024-10-12 19:17:23,485 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [414] [2024-10-12 19:17:23,485 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [601] [2024-10-12 19:17:23,486 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [615] [2024-10-12 19:17:23,486 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [714] [2024-10-12 19:17:23,486 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [723] [2024-10-12 19:17:23,486 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2279] [2024-10-12 19:17:23,486 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2632] [2024-10-12 19:17:23,486 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [3293] [2024-10-12 19:17:23,486 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3411] [2024-10-12 19:17:23,509 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product27.cil.c[16494,16507] [2024-10-12 19:17:23,558 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 19:17:23,580 INFO L204 MainTranslator]: Completed translation [2024-10-12 19:17:23,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:17:23 WrapperNode [2024-10-12 19:17:23,581 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 19:17:23,581 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 19:17:23,581 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 19:17:23,582 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 19:17:23,587 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:17:23" (1/1) ... [2024-10-12 19:17:23,620 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:17:23" (1/1) ... [2024-10-12 19:17:23,674 INFO L138 Inliner]: procedures = 95, calls = 342, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 1162 [2024-10-12 19:17:23,674 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 19:17:23,675 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 19:17:23,675 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 19:17:23,675 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 19:17:23,693 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:17:23" (1/1) ... [2024-10-12 19:17:23,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:17:23" (1/1) ... [2024-10-12 19:17:23,699 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:17:23" (1/1) ... [2024-10-12 19:17:23,743 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-10-12 19:17:23,744 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:17:23" (1/1) ... [2024-10-12 19:17:23,744 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:17:23" (1/1) ... [2024-10-12 19:17:23,771 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:17:23" (1/1) ... [2024-10-12 19:17:23,787 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:17:23" (1/1) ... [2024-10-12 19:17:23,795 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:17:23" (1/1) ... [2024-10-12 19:17:23,801 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:17:23" (1/1) ... [2024-10-12 19:17:23,817 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 19:17:23,818 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 19:17:23,819 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 19:17:23,819 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 19:17:23,820 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:17:23" (1/1) ... [2024-10-12 19:17:23,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 19:17:23,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:17:23,874 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) [2024-10-12 19:17:23,880 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 [2024-10-12 19:17:23,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 19:17:23,927 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-10-12 19:17:23,927 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-10-12 19:17:23,928 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-10-12 19:17:23,928 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-10-12 19:17:23,928 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-10-12 19:17:23,928 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-10-12 19:17:23,928 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2024-10-12 19:17:23,929 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2024-10-12 19:17:23,929 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-10-12 19:17:23,929 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-10-12 19:17:23,930 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-10-12 19:17:23,930 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-10-12 19:17:23,930 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-12 19:17:23,930 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-12 19:17:23,931 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-12 19:17:23,931 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-12 19:17:23,931 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-10-12 19:17:23,931 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-10-12 19:17:23,931 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-10-12 19:17:23,931 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-10-12 19:17:23,932 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-10-12 19:17:23,932 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-10-12 19:17:23,932 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-10-12 19:17:23,932 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-10-12 19:17:23,932 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-10-12 19:17:23,932 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-10-12 19:17:23,932 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-10-12 19:17:23,932 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-10-12 19:17:23,932 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-10-12 19:17:23,932 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-10-12 19:17:23,932 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2024-10-12 19:17:23,933 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2024-10-12 19:17:23,933 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-10-12 19:17:23,933 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-10-12 19:17:23,933 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-10-12 19:17:23,933 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-10-12 19:17:23,933 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-10-12 19:17:23,933 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-10-12 19:17:23,933 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-10-12 19:17:23,933 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-10-12 19:17:23,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 19:17:23,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-12 19:17:23,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-12 19:17:23,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-12 19:17:23,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-12 19:17:23,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-12 19:17:23,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-12 19:17:23,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-12 19:17:23,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-12 19:17:23,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-10-12 19:17:23,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-10-12 19:17:23,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-10-12 19:17:23,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-10-12 19:17:23,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-10-12 19:17:23,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-10-12 19:17:23,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-10-12 19:17:23,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-10-12 19:17:23,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-10-12 19:17:23,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-10-12 19:17:23,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-10-12 19:17:23,937 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-10-12 19:17:23,937 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-10-12 19:17:23,937 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-10-12 19:17:23,938 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-10-12 19:17:23,938 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-10-12 19:17:23,938 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-10-12 19:17:23,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 19:17:23,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 19:17:23,938 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-10-12 19:17:23,938 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-10-12 19:17:24,106 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 19:17:24,108 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 19:17:25,209 INFO L? ?]: Removed 461 outVars from TransFormulas that were not future-live. [2024-10-12 19:17:25,210 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 19:17:25,306 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 19:17:25,307 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-12 19:17:25,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:17:25 BoogieIcfgContainer [2024-10-12 19:17:25,307 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 19:17:25,309 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 19:17:25,309 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 19:17:25,311 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 19:17:25,312 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 07:17:22" (1/3) ... [2024-10-12 19:17:25,312 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40cda67a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:17:25, skipping insertion in model container [2024-10-12 19:17:25,312 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:17:23" (2/3) ... [2024-10-12 19:17:25,312 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40cda67a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:17:25, skipping insertion in model container [2024-10-12 19:17:25,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:17:25" (3/3) ... [2024-10-12 19:17:25,314 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product27.cil.c [2024-10-12 19:17:25,327 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 19:17:25,327 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 19:17:25,411 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 19:17:25,420 INFO L333 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, 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;@408ee3bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 19:17:25,420 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 19:17:25,434 INFO L276 IsEmpty]: Start isEmpty. Operand has 547 states, 425 states have (on average 1.7270588235294118) internal successors, (734), 446 states have internal predecessors, (734), 96 states have call successors, (96), 24 states have call predecessors, (96), 24 states have return successors, (96), 90 states have call predecessors, (96), 96 states have call successors, (96) [2024-10-12 19:17:25,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-12 19:17:25,475 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:17:25,476 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:17:25,477 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:17:25,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:17:25,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1342275960, now seen corresponding path program 1 times [2024-10-12 19:17:25,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:17:25,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545568602] [2024-10-12 19:17:25,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:17:25,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:17:25,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:26,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:17:26,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:26,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:26,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:26,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-12 19:17:26,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:26,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:17:26,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:26,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:26,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:26,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:26,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:26,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:26,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:26,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:17:26,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:26,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:17:26,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:26,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:26,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:26,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:26,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:26,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:17:26,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:26,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-12 19:17:26,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:26,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-12 19:17:26,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:26,932 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-12 19:17:26,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:17:26,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545568602] [2024-10-12 19:17:26,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545568602] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:17:26,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563105264] [2024-10-12 19:17:26,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:17:26,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:17:26,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:17:26,940 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) [2024-10-12 19:17:26,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-12 19:17:27,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:27,196 INFO L255 TraceCheckSpWp]: Trace formula consists of 1401 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-12 19:17:27,202 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:17:27,215 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-12 19:17:27,215 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 19:17:27,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563105264] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:17:27,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 19:17:27,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [16] total 16 [2024-10-12 19:17:27,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029466188] [2024-10-12 19:17:27,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:17:27,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-12 19:17:27,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:17:27,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 19:17:27,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2024-10-12 19:17:27,244 INFO L87 Difference]: Start difference. First operand has 547 states, 425 states have (on average 1.7270588235294118) internal successors, (734), 446 states have internal predecessors, (734), 96 states have call successors, (96), 24 states have call predecessors, (96), 24 states have return successors, (96), 90 states have call predecessors, (96), 96 states have call successors, (96) Second operand has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-12 19:17:27,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:17:27,328 INFO L93 Difference]: Finished difference Result 565 states and 953 transitions. [2024-10-12 19:17:27,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 19:17:27,337 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 91 [2024-10-12 19:17:27,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:17:27,358 INFO L225 Difference]: With dead ends: 565 [2024-10-12 19:17:27,358 INFO L226 Difference]: Without dead ends: 543 [2024-10-12 19:17:27,361 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2024-10-12 19:17:27,363 INFO L432 NwaCegarLoop]: 902 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:17:27,364 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 902 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 19:17:27,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2024-10-12 19:17:27,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 543. [2024-10-12 19:17:27,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 423 states have (on average 1.718676122931442) internal successors, (727), 442 states have internal predecessors, (727), 96 states have call successors, (96), 24 states have call predecessors, (96), 23 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) [2024-10-12 19:17:27,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 914 transitions. [2024-10-12 19:17:27,450 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 914 transitions. Word has length 91 [2024-10-12 19:17:27,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:17:27,452 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 914 transitions. [2024-10-12 19:17:27,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-12 19:17:27,452 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 914 transitions. [2024-10-12 19:17:27,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-12 19:17:27,457 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:17:27,457 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:17:27,473 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-12 19:17:27,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-10-12 19:17:27,662 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:17:27,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:17:27,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1680482254, now seen corresponding path program 1 times [2024-10-12 19:17:27,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:17:27,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617974952] [2024-10-12 19:17:27,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:17:27,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:17:27,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:27,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:17:27,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:27,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:27,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:27,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-12 19:17:27,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:28,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:17:28,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:28,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:28,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:28,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:28,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:28,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:28,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:28,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:17:28,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:28,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:17:28,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:28,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:28,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:28,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:28,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:28,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:17:28,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:28,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-12 19:17:28,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:28,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-12 19:17:28,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:28,433 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-12 19:17:28,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:17:28,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617974952] [2024-10-12 19:17:28,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617974952] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:17:28,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552612430] [2024-10-12 19:17:28,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:17:28,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:17:28,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:17:28,436 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) [2024-10-12 19:17:28,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-12 19:17:28,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:28,657 INFO L255 TraceCheckSpWp]: Trace formula consists of 1403 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-12 19:17:28,661 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:17:28,704 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-12 19:17:28,705 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 19:17:28,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [552612430] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:17:28,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 19:17:28,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 18 [2024-10-12 19:17:28,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674099465] [2024-10-12 19:17:28,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:17:28,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 19:17:28,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:17:28,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 19:17:28,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2024-10-12 19:17:28,707 INFO L87 Difference]: Start difference. First operand 543 states and 914 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-12 19:17:28,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:17:28,791 INFO L93 Difference]: Finished difference Result 1074 states and 1810 transitions. [2024-10-12 19:17:28,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 19:17:28,791 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 92 [2024-10-12 19:17:28,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:17:28,798 INFO L225 Difference]: With dead ends: 1074 [2024-10-12 19:17:28,798 INFO L226 Difference]: Without dead ends: 543 [2024-10-12 19:17:28,801 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2024-10-12 19:17:28,802 INFO L432 NwaCegarLoop]: 888 mSDtfsCounter, 5 mSDsluCounter, 1772 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2660 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:17:28,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2660 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 19:17:28,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2024-10-12 19:17:28,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 543. [2024-10-12 19:17:28,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 423 states have (on average 1.7163120567375887) internal successors, (726), 442 states have internal predecessors, (726), 96 states have call successors, (96), 24 states have call predecessors, (96), 23 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) [2024-10-12 19:17:28,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 913 transitions. [2024-10-12 19:17:28,821 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 913 transitions. Word has length 92 [2024-10-12 19:17:28,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:17:28,821 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 913 transitions. [2024-10-12 19:17:28,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-12 19:17:28,822 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 913 transitions. [2024-10-12 19:17:28,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-12 19:17:28,824 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:17:28,825 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:17:28,839 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-12 19:17:29,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-10-12 19:17:29,026 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:17:29,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:17:29,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1526644632, now seen corresponding path program 1 times [2024-10-12 19:17:29,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:17:29,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013543578] [2024-10-12 19:17:29,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:17:29,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:17:29,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:29,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:17:29,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:29,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:29,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:29,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:17:29,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:29,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:17:29,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:29,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:29,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:29,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:29,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:29,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:29,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:29,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:17:29,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:29,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:17:29,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:29,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:29,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:29,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:29,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:29,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:17:29,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:29,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-12 19:17:29,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:29,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-12 19:17:29,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:29,846 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-12 19:17:29,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:17:29,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013543578] [2024-10-12 19:17:29,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013543578] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:17:29,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1544583767] [2024-10-12 19:17:29,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:17:29,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:17:29,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:17:29,849 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) [2024-10-12 19:17:29,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-12 19:17:30,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:30,110 INFO L255 TraceCheckSpWp]: Trace formula consists of 1404 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-12 19:17:30,113 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:17:30,145 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-12 19:17:30,146 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 19:17:30,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1544583767] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:17:30,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 19:17:30,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 18 [2024-10-12 19:17:30,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303051977] [2024-10-12 19:17:30,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:17:30,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 19:17:30,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:17:30,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 19:17:30,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2024-10-12 19:17:30,148 INFO L87 Difference]: Start difference. First operand 543 states and 913 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-12 19:17:30,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:17:30,210 INFO L93 Difference]: Finished difference Result 1074 states and 1809 transitions. [2024-10-12 19:17:30,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 19:17:30,210 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 93 [2024-10-12 19:17:30,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:17:30,213 INFO L225 Difference]: With dead ends: 1074 [2024-10-12 19:17:30,213 INFO L226 Difference]: Without dead ends: 543 [2024-10-12 19:17:30,218 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2024-10-12 19:17:30,219 INFO L432 NwaCegarLoop]: 888 mSDtfsCounter, 4 mSDsluCounter, 1772 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2660 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:17:30,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2660 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 19:17:30,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2024-10-12 19:17:30,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 543. [2024-10-12 19:17:30,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 423 states have (on average 1.7139479905437351) internal successors, (725), 442 states have internal predecessors, (725), 96 states have call successors, (96), 24 states have call predecessors, (96), 23 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) [2024-10-12 19:17:30,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 912 transitions. [2024-10-12 19:17:30,240 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 912 transitions. Word has length 93 [2024-10-12 19:17:30,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:17:30,241 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 912 transitions. [2024-10-12 19:17:30,241 INFO L472 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-12 19:17:30,241 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 912 transitions. [2024-10-12 19:17:30,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-12 19:17:30,243 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:17:30,243 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:17:30,262 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-12 19:17:30,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:17:30,444 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:17:30,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:17:30,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1785512566, now seen corresponding path program 1 times [2024-10-12 19:17:30,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:17:30,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573059032] [2024-10-12 19:17:30,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:17:30,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:17:30,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:30,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:17:30,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:30,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:30,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:30,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-12 19:17:30,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:30,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-12 19:17:30,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:31,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:31,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:31,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:31,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:31,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:31,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:31,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:17:31,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:31,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:17:31,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:31,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:31,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:31,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:31,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:31,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:17:31,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:31,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-12 19:17:31,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:31,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-12 19:17:31,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:31,241 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-12 19:17:31,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:17:31,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573059032] [2024-10-12 19:17:31,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573059032] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:17:31,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181838920] [2024-10-12 19:17:31,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:17:31,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:17:31,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:17:31,244 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) [2024-10-12 19:17:31,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-12 19:17:31,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:31,464 INFO L255 TraceCheckSpWp]: Trace formula consists of 1405 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-12 19:17:31,467 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:17:31,522 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-12 19:17:31,525 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 19:17:31,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [181838920] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:17:31,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 19:17:31,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 18 [2024-10-12 19:17:31,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168277911] [2024-10-12 19:17:31,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:17:31,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 19:17:31,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:17:31,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 19:17:31,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2024-10-12 19:17:31,529 INFO L87 Difference]: Start difference. First operand 543 states and 912 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-12 19:17:31,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:17:31,628 INFO L93 Difference]: Finished difference Result 1074 states and 1808 transitions. [2024-10-12 19:17:31,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 19:17:31,629 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 94 [2024-10-12 19:17:31,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:17:31,633 INFO L225 Difference]: With dead ends: 1074 [2024-10-12 19:17:31,633 INFO L226 Difference]: Without dead ends: 543 [2024-10-12 19:17:31,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2024-10-12 19:17:31,636 INFO L432 NwaCegarLoop]: 888 mSDtfsCounter, 3 mSDsluCounter, 1772 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2660 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:17:31,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2660 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 19:17:31,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2024-10-12 19:17:31,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 543. [2024-10-12 19:17:31,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 423 states have (on average 1.7115839243498818) internal successors, (724), 442 states have internal predecessors, (724), 96 states have call successors, (96), 24 states have call predecessors, (96), 23 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) [2024-10-12 19:17:31,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 911 transitions. [2024-10-12 19:17:31,658 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 911 transitions. Word has length 94 [2024-10-12 19:17:31,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:17:31,659 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 911 transitions. [2024-10-12 19:17:31,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-12 19:17:31,659 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 911 transitions. [2024-10-12 19:17:31,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-12 19:17:31,662 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:17:31,662 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:17:31,682 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-12 19:17:31,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:17:31,863 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:17:31,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:17:31,864 INFO L85 PathProgramCache]: Analyzing trace with hash -842666204, now seen corresponding path program 1 times [2024-10-12 19:17:31,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:17:31,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756429008] [2024-10-12 19:17:31,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:17:31,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:17:31,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:32,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:17:32,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:32,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:32,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:32,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-12 19:17:32,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:32,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-12 19:17:32,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:32,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:32,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:32,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:32,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:32,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:32,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:32,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:17:32,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:32,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:17:32,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:32,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:32,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:32,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:32,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:32,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:17:32,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:32,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-12 19:17:32,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:32,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-12 19:17:32,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:32,519 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-12 19:17:32,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:17:32,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756429008] [2024-10-12 19:17:32,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756429008] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:17:32,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039932745] [2024-10-12 19:17:32,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:17:32,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:17:32,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:17:32,522 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) [2024-10-12 19:17:32,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-12 19:17:32,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:32,769 INFO L255 TraceCheckSpWp]: Trace formula consists of 1406 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-12 19:17:32,773 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:17:32,806 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-12 19:17:32,806 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 19:17:32,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039932745] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:17:32,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 19:17:32,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 18 [2024-10-12 19:17:32,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837714323] [2024-10-12 19:17:32,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:17:32,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 19:17:32,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:17:32,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 19:17:32,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2024-10-12 19:17:32,809 INFO L87 Difference]: Start difference. First operand 543 states and 911 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-12 19:17:32,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:17:32,882 INFO L93 Difference]: Finished difference Result 1074 states and 1807 transitions. [2024-10-12 19:17:32,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 19:17:32,882 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 95 [2024-10-12 19:17:32,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:17:32,885 INFO L225 Difference]: With dead ends: 1074 [2024-10-12 19:17:32,886 INFO L226 Difference]: Without dead ends: 543 [2024-10-12 19:17:32,888 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2024-10-12 19:17:32,888 INFO L432 NwaCegarLoop]: 888 mSDtfsCounter, 2 mSDsluCounter, 1772 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2660 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:17:32,889 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2660 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 19:17:32,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2024-10-12 19:17:32,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 543. [2024-10-12 19:17:32,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 423 states have (on average 1.7092198581560283) internal successors, (723), 442 states have internal predecessors, (723), 96 states have call successors, (96), 24 states have call predecessors, (96), 23 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) [2024-10-12 19:17:32,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 910 transitions. [2024-10-12 19:17:32,905 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 910 transitions. Word has length 95 [2024-10-12 19:17:32,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:17:32,905 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 910 transitions. [2024-10-12 19:17:32,906 INFO L472 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-12 19:17:32,906 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 910 transitions. [2024-10-12 19:17:32,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-12 19:17:32,908 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:17:32,908 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:17:32,926 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-12 19:17:33,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:17:33,109 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:17:33,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:17:33,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1301382330, now seen corresponding path program 1 times [2024-10-12 19:17:33,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:17:33,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448783812] [2024-10-12 19:17:33,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:17:33,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:17:33,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:33,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:17:33,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:33,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:33,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:33,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-12 19:17:33,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:33,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-12 19:17:33,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:33,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:33,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:33,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:33,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:33,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:33,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:33,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:17:33,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:33,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:17:33,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:33,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:33,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:33,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:33,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:33,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:17:33,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:33,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-12 19:17:33,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:33,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-12 19:17:33,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:33,730 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-12 19:17:33,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:17:33,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448783812] [2024-10-12 19:17:33,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448783812] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:17:33,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343074490] [2024-10-12 19:17:33,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:17:33,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:17:33,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:17:33,733 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) [2024-10-12 19:17:33,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-12 19:17:33,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:33,948 INFO L255 TraceCheckSpWp]: Trace formula consists of 1407 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-12 19:17:33,953 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:17:33,987 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-12 19:17:33,987 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 19:17:33,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1343074490] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:17:33,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 19:17:33,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 18 [2024-10-12 19:17:33,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298557050] [2024-10-12 19:17:33,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:17:33,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 19:17:33,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:17:33,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 19:17:33,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2024-10-12 19:17:33,992 INFO L87 Difference]: Start difference. First operand 543 states and 910 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-12 19:17:34,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:17:34,054 INFO L93 Difference]: Finished difference Result 1074 states and 1806 transitions. [2024-10-12 19:17:34,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 19:17:34,055 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 96 [2024-10-12 19:17:34,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:17:34,058 INFO L225 Difference]: With dead ends: 1074 [2024-10-12 19:17:34,058 INFO L226 Difference]: Without dead ends: 543 [2024-10-12 19:17:34,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2024-10-12 19:17:34,060 INFO L432 NwaCegarLoop]: 888 mSDtfsCounter, 1 mSDsluCounter, 1772 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2660 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:17:34,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2660 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 19:17:34,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2024-10-12 19:17:34,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 543. [2024-10-12 19:17:34,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 423 states have (on average 1.706855791962175) internal successors, (722), 442 states have internal predecessors, (722), 96 states have call successors, (96), 24 states have call predecessors, (96), 23 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) [2024-10-12 19:17:34,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 909 transitions. [2024-10-12 19:17:34,073 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 909 transitions. Word has length 96 [2024-10-12 19:17:34,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:17:34,073 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 909 transitions. [2024-10-12 19:17:34,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-12 19:17:34,074 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 909 transitions. [2024-10-12 19:17:34,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-12 19:17:34,075 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:17:34,076 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:17:34,090 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-12 19:17:34,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:17:34,280 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:17:34,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:17:34,280 INFO L85 PathProgramCache]: Analyzing trace with hash 2036104672, now seen corresponding path program 1 times [2024-10-12 19:17:34,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:17:34,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910692051] [2024-10-12 19:17:34,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:17:34,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:17:34,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:34,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:17:34,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:34,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:34,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:34,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:17:34,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:34,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-12 19:17:34,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:34,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:34,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:34,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:34,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:34,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:34,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:34,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:17:34,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:34,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:17:34,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:34,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:34,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:34,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:34,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:34,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:17:34,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:34,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-12 19:17:34,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:34,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-12 19:17:34,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:34,770 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-12 19:17:34,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:17:34,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910692051] [2024-10-12 19:17:34,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910692051] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:17:34,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:17:34,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-12 19:17:34,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348141806] [2024-10-12 19:17:34,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:17:34,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-12 19:17:34,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:17:34,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-12 19:17:34,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-12 19:17:34,772 INFO L87 Difference]: Start difference. First operand 543 states and 909 transitions. Second operand has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-12 19:17:40,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:17:40,722 INFO L93 Difference]: Finished difference Result 1299 states and 2199 transitions. [2024-10-12 19:17:40,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-12 19:17:40,723 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 97 [2024-10-12 19:17:40,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:17:40,730 INFO L225 Difference]: With dead ends: 1299 [2024-10-12 19:17:40,731 INFO L226 Difference]: Without dead ends: 816 [2024-10-12 19:17:40,732 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-12 19:17:40,733 INFO L432 NwaCegarLoop]: 457 mSDtfsCounter, 1925 mSDsluCounter, 2502 mSDsCounter, 0 mSdLazyCounter, 5266 mSolverCounterSat, 500 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2007 SdHoareTripleChecker+Valid, 2959 SdHoareTripleChecker+Invalid, 5766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 500 IncrementalHoareTripleChecker+Valid, 5266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-10-12 19:17:40,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2007 Valid, 2959 Invalid, 5766 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [500 Valid, 5266 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-10-12 19:17:40,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2024-10-12 19:17:40,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 555. [2024-10-12 19:17:40,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 432 states have (on average 1.7037037037037037) internal successors, (736), 453 states have internal predecessors, (736), 97 states have call successors, (97), 24 states have call predecessors, (97), 25 states have return successors, (94), 90 states have call predecessors, (94), 92 states have call successors, (94) [2024-10-12 19:17:40,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 927 transitions. [2024-10-12 19:17:40,813 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 927 transitions. Word has length 97 [2024-10-12 19:17:40,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:17:40,813 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 927 transitions. [2024-10-12 19:17:40,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-12 19:17:40,813 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 927 transitions. [2024-10-12 19:17:40,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-12 19:17:40,816 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:17:40,816 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:17:40,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 19:17:40,816 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:17:40,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:17:40,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1090666369, now seen corresponding path program 1 times [2024-10-12 19:17:40,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:17:40,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342359790] [2024-10-12 19:17:40,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:17:40,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:17:40,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:40,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:17:40,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:40,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:40,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:40,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:17:40,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:41,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-12 19:17:41,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:41,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:41,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:41,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:41,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:41,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:41,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:41,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:17:41,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:41,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:17:41,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:41,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:41,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:41,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:41,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:41,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:17:41,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:41,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-12 19:17:41,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:41,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-12 19:17:41,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:41,254 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-12 19:17:41,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:17:41,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342359790] [2024-10-12 19:17:41,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342359790] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:17:41,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:17:41,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:17:41,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18571313] [2024-10-12 19:17:41,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:17:41,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:17:41,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:17:41,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:17:41,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:17:41,256 INFO L87 Difference]: Start difference. First operand 555 states and 927 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-12 19:17:45,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:17:45,240 INFO L93 Difference]: Finished difference Result 1321 states and 2237 transitions. [2024-10-12 19:17:45,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:17:45,241 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 97 [2024-10-12 19:17:45,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:17:45,245 INFO L225 Difference]: With dead ends: 1321 [2024-10-12 19:17:45,245 INFO L226 Difference]: Without dead ends: 822 [2024-10-12 19:17:45,247 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-10-12 19:17:45,248 INFO L432 NwaCegarLoop]: 441 mSDtfsCounter, 1471 mSDsluCounter, 1211 mSDsCounter, 0 mSdLazyCounter, 2914 mSolverCounterSat, 370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1552 SdHoareTripleChecker+Valid, 1652 SdHoareTripleChecker+Invalid, 3284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 370 IncrementalHoareTripleChecker+Valid, 2914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-10-12 19:17:45,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1552 Valid, 1652 Invalid, 3284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [370 Valid, 2914 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-10-12 19:17:45,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2024-10-12 19:17:45,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 555. [2024-10-12 19:17:45,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 432 states have (on average 1.6921296296296295) internal successors, (731), 453 states have internal predecessors, (731), 97 states have call successors, (97), 24 states have call predecessors, (97), 25 states have return successors, (94), 90 states have call predecessors, (94), 92 states have call successors, (94) [2024-10-12 19:17:45,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 922 transitions. [2024-10-12 19:17:45,321 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 922 transitions. Word has length 97 [2024-10-12 19:17:45,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:17:45,321 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 922 transitions. [2024-10-12 19:17:45,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-12 19:17:45,321 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 922 transitions. [2024-10-12 19:17:45,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-10-12 19:17:45,323 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:17:45,323 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:17:45,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 19:17:45,324 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:17:45,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:17:45,324 INFO L85 PathProgramCache]: Analyzing trace with hash 2130608733, now seen corresponding path program 1 times [2024-10-12 19:17:45,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:17:45,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602258498] [2024-10-12 19:17:45,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:17:45,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:17:45,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:45,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:17:45,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:45,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:45,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:45,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:17:45,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:45,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-12 19:17:45,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:45,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:45,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:45,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:45,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:45,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:45,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:45,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:17:45,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:45,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:17:45,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:45,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:45,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:45,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:45,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:45,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:17:45,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:45,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-12 19:17:45,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:45,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-12 19:17:45,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:45,818 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-12 19:17:45,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:17:45,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602258498] [2024-10-12 19:17:45,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602258498] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:17:45,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:17:45,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:17:45,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740988576] [2024-10-12 19:17:45,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:17:45,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:17:45,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:17:45,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:17:45,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:17:45,820 INFO L87 Difference]: Start difference. First operand 555 states and 922 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-12 19:17:50,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:17:50,040 INFO L93 Difference]: Finished difference Result 1321 states and 2232 transitions. [2024-10-12 19:17:50,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:17:50,040 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 98 [2024-10-12 19:17:50,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:17:50,045 INFO L225 Difference]: With dead ends: 1321 [2024-10-12 19:17:50,045 INFO L226 Difference]: Without dead ends: 822 [2024-10-12 19:17:50,047 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-10-12 19:17:50,048 INFO L432 NwaCegarLoop]: 453 mSDtfsCounter, 1036 mSDsluCounter, 1274 mSDsCounter, 0 mSdLazyCounter, 3001 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1117 SdHoareTripleChecker+Valid, 1727 SdHoareTripleChecker+Invalid, 3210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 3001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-10-12 19:17:50,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1117 Valid, 1727 Invalid, 3210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 3001 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-10-12 19:17:50,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2024-10-12 19:17:50,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 555. [2024-10-12 19:17:50,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 432 states have (on average 1.6805555555555556) internal successors, (726), 453 states have internal predecessors, (726), 97 states have call successors, (97), 24 states have call predecessors, (97), 25 states have return successors, (94), 90 states have call predecessors, (94), 92 states have call successors, (94) [2024-10-12 19:17:50,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 917 transitions. [2024-10-12 19:17:50,167 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 917 transitions. Word has length 98 [2024-10-12 19:17:50,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:17:50,167 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 917 transitions. [2024-10-12 19:17:50,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-12 19:17:50,168 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 917 transitions. [2024-10-12 19:17:50,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-12 19:17:50,170 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:17:50,170 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:17:50,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 19:17:50,170 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:17:50,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:17:50,170 INFO L85 PathProgramCache]: Analyzing trace with hash -488478844, now seen corresponding path program 1 times [2024-10-12 19:17:50,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:17:50,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734050770] [2024-10-12 19:17:50,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:17:50,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:17:50,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:50,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:17:50,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:50,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:50,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:50,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:17:50,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:50,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-12 19:17:50,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:50,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:50,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:50,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:50,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:50,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:50,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:50,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:17:50,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:50,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:17:50,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:50,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:50,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:50,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:50,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:50,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:17:50,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:50,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-12 19:17:50,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:50,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-12 19:17:50,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:50,601 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-12 19:17:50,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:17:50,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734050770] [2024-10-12 19:17:50,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734050770] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:17:50,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:17:50,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:17:50,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185319459] [2024-10-12 19:17:50,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:17:50,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:17:50,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:17:50,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:17:50,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:17:50,606 INFO L87 Difference]: Start difference. First operand 555 states and 917 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-12 19:17:54,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:17:54,278 INFO L93 Difference]: Finished difference Result 1321 states and 2227 transitions. [2024-10-12 19:17:54,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:17:54,278 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 99 [2024-10-12 19:17:54,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:17:54,284 INFO L225 Difference]: With dead ends: 1321 [2024-10-12 19:17:54,284 INFO L226 Difference]: Without dead ends: 822 [2024-10-12 19:17:54,286 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-10-12 19:17:54,286 INFO L432 NwaCegarLoop]: 443 mSDtfsCounter, 1473 mSDsluCounter, 1203 mSDsCounter, 0 mSdLazyCounter, 2782 mSolverCounterSat, 367 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1554 SdHoareTripleChecker+Valid, 1646 SdHoareTripleChecker+Invalid, 3149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 367 IncrementalHoareTripleChecker+Valid, 2782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-10-12 19:17:54,287 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1554 Valid, 1646 Invalid, 3149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [367 Valid, 2782 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-10-12 19:17:54,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2024-10-12 19:17:54,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 555. [2024-10-12 19:17:54,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 432 states have (on average 1.6689814814814814) internal successors, (721), 453 states have internal predecessors, (721), 97 states have call successors, (97), 24 states have call predecessors, (97), 25 states have return successors, (94), 90 states have call predecessors, (94), 92 states have call successors, (94) [2024-10-12 19:17:54,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 912 transitions. [2024-10-12 19:17:54,395 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 912 transitions. Word has length 99 [2024-10-12 19:17:54,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:17:54,395 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 912 transitions. [2024-10-12 19:17:54,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-12 19:17:54,396 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 912 transitions. [2024-10-12 19:17:54,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-12 19:17:54,398 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:17:54,398 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:17:54,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-12 19:17:54,398 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:17:54,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:17:54,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1992883106, now seen corresponding path program 1 times [2024-10-12 19:17:54,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:17:54,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270339168] [2024-10-12 19:17:54,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:17:54,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:17:54,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:54,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:17:54,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:54,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:54,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:54,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:17:54,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:54,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:17:54,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:54,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:54,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:54,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:54,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:54,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:54,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:54,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:17:54,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:54,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:17:54,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:54,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:54,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:54,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:17:54,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:54,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:17:54,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:54,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-12 19:17:54,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:54,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-12 19:17:54,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:17:54,948 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-12 19:17:54,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:17:54,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270339168] [2024-10-12 19:17:54,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270339168] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:17:54,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:17:54,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-12 19:17:54,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041143556] [2024-10-12 19:17:54,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:17:54,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-12 19:17:54,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:17:54,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-12 19:17:54,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-12 19:17:54,949 INFO L87 Difference]: Start difference. First operand 555 states and 912 transitions. Second operand has 10 states, 9 states have (on average 7.111111111111111) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-12 19:18:00,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:18:00,076 INFO L93 Difference]: Finished difference Result 1301 states and 2185 transitions. [2024-10-12 19:18:00,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 19:18:00,076 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.111111111111111) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 100 [2024-10-12 19:18:00,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:18:00,080 INFO L225 Difference]: With dead ends: 1301 [2024-10-12 19:18:00,080 INFO L226 Difference]: Without dead ends: 816 [2024-10-12 19:18:00,081 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-10-12 19:18:00,082 INFO L432 NwaCegarLoop]: 447 mSDtfsCounter, 1867 mSDsluCounter, 2467 mSDsCounter, 0 mSdLazyCounter, 5092 mSolverCounterSat, 517 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1949 SdHoareTripleChecker+Valid, 2914 SdHoareTripleChecker+Invalid, 5609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 517 IncrementalHoareTripleChecker+Valid, 5092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-10-12 19:18:00,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1949 Valid, 2914 Invalid, 5609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [517 Valid, 5092 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-10-12 19:18:00,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2024-10-12 19:18:00,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 555. [2024-10-12 19:18:00,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 432 states have (on average 1.6666666666666667) internal successors, (720), 453 states have internal predecessors, (720), 97 states have call successors, (97), 24 states have call predecessors, (97), 25 states have return successors, (94), 90 states have call predecessors, (94), 92 states have call successors, (94) [2024-10-12 19:18:00,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 911 transitions. [2024-10-12 19:18:00,159 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 911 transitions. Word has length 100 [2024-10-12 19:18:00,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:18:00,159 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 911 transitions. [2024-10-12 19:18:00,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.111111111111111) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-12 19:18:00,160 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 911 transitions. [2024-10-12 19:18:00,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-12 19:18:00,162 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:18:00,162 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:18:00,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-12 19:18:00,162 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:18:00,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:18:00,163 INFO L85 PathProgramCache]: Analyzing trace with hash 524784258, now seen corresponding path program 1 times [2024-10-12 19:18:00,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:18:00,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147686247] [2024-10-12 19:18:00,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:18:00,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:18:00,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:00,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:18:00,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:00,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:00,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:00,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:18:00,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:00,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:18:00,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:00,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:00,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:00,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:00,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:00,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:00,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:00,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:18:00,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:00,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:18:00,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:00,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:00,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:00,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:00,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:00,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:18:00,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:00,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-12 19:18:00,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:00,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-12 19:18:00,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:00,586 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-12 19:18:00,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:18:00,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147686247] [2024-10-12 19:18:00,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147686247] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:18:00,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:18:00,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:18:00,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745216599] [2024-10-12 19:18:00,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:18:00,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:18:00,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:18:00,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:18:00,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:18:00,588 INFO L87 Difference]: Start difference. First operand 555 states and 911 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-12 19:18:04,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:18:04,558 INFO L93 Difference]: Finished difference Result 1321 states and 2218 transitions. [2024-10-12 19:18:04,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:18:04,559 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 100 [2024-10-12 19:18:04,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:18:04,564 INFO L225 Difference]: With dead ends: 1321 [2024-10-12 19:18:04,564 INFO L226 Difference]: Without dead ends: 822 [2024-10-12 19:18:04,566 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-10-12 19:18:04,566 INFO L432 NwaCegarLoop]: 445 mSDtfsCounter, 1029 mSDsluCounter, 1266 mSDsCounter, 0 mSdLazyCounter, 2922 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1110 SdHoareTripleChecker+Valid, 1711 SdHoareTripleChecker+Invalid, 3135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 2922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-10-12 19:18:04,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1110 Valid, 1711 Invalid, 3135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 2922 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-10-12 19:18:04,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2024-10-12 19:18:04,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 555. [2024-10-12 19:18:04,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 432 states have (on average 1.6550925925925926) internal successors, (715), 453 states have internal predecessors, (715), 97 states have call successors, (97), 24 states have call predecessors, (97), 25 states have return successors, (94), 90 states have call predecessors, (94), 92 states have call successors, (94) [2024-10-12 19:18:04,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 906 transitions. [2024-10-12 19:18:04,652 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 906 transitions. Word has length 100 [2024-10-12 19:18:04,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:18:04,652 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 906 transitions. [2024-10-12 19:18:04,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-12 19:18:04,653 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 906 transitions. [2024-10-12 19:18:04,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-12 19:18:04,654 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:18:04,654 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:18:04,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-12 19:18:04,655 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:18:04,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:18:04,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1309807079, now seen corresponding path program 1 times [2024-10-12 19:18:04,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:18:04,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427348519] [2024-10-12 19:18:04,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:18:04,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:18:04,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:04,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:18:04,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:04,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:04,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:04,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:18:04,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:05,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-12 19:18:05,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:05,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:05,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:05,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:05,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:05,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:05,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:05,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:18:05,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:05,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:18:05,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:05,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:05,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:05,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:05,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:05,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:18:05,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:05,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-12 19:18:05,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:05,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-12 19:18:05,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:05,265 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-12 19:18:05,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:18:05,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427348519] [2024-10-12 19:18:05,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427348519] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:18:05,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:18:05,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-12 19:18:05,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882341020] [2024-10-12 19:18:05,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:18:05,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-12 19:18:05,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:18:05,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-12 19:18:05,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-12 19:18:05,267 INFO L87 Difference]: Start difference. First operand 555 states and 906 transitions. Second operand has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-12 19:18:10,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:18:10,450 INFO L93 Difference]: Finished difference Result 1309 states and 2188 transitions. [2024-10-12 19:18:10,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 19:18:10,451 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 101 [2024-10-12 19:18:10,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:18:10,455 INFO L225 Difference]: With dead ends: 1309 [2024-10-12 19:18:10,455 INFO L226 Difference]: Without dead ends: 822 [2024-10-12 19:18:10,457 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-10-12 19:18:10,458 INFO L432 NwaCegarLoop]: 446 mSDtfsCounter, 1442 mSDsluCounter, 2508 mSDsCounter, 0 mSdLazyCounter, 5073 mSolverCounterSat, 365 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 2954 SdHoareTripleChecker+Invalid, 5438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 365 IncrementalHoareTripleChecker+Valid, 5073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-10-12 19:18:10,459 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1524 Valid, 2954 Invalid, 5438 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [365 Valid, 5073 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-10-12 19:18:10,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2024-10-12 19:18:10,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 558. [2024-10-12 19:18:10,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 435 states have (on average 1.6482758620689655) internal successors, (717), 456 states have internal predecessors, (717), 97 states have call successors, (97), 24 states have call predecessors, (97), 25 states have return successors, (94), 90 states have call predecessors, (94), 92 states have call successors, (94) [2024-10-12 19:18:10,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 908 transitions. [2024-10-12 19:18:10,541 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 908 transitions. Word has length 101 [2024-10-12 19:18:10,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:18:10,541 INFO L471 AbstractCegarLoop]: Abstraction has 558 states and 908 transitions. [2024-10-12 19:18:10,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-12 19:18:10,542 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 908 transitions. [2024-10-12 19:18:10,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-12 19:18:10,543 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:18:10,544 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:18:10,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-12 19:18:10,544 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:18:10,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:18:10,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1823198583, now seen corresponding path program 1 times [2024-10-12 19:18:10,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:18:10,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963736747] [2024-10-12 19:18:10,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:18:10,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:18:10,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:10,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:18:10,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:10,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:10,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:10,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:18:10,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:10,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-12 19:18:10,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:10,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:10,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:10,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:10,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:10,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:10,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:18:10,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:10,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:18:10,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:10,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:10,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:10,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:10,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:10,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:18:10,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:10,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-12 19:18:10,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:10,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-12 19:18:10,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:10,975 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-12 19:18:10,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:18:10,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963736747] [2024-10-12 19:18:10,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963736747] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:18:10,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:18:10,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:18:10,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342067296] [2024-10-12 19:18:10,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:18:10,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:18:10,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:18:10,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:18:10,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:18:10,977 INFO L87 Difference]: Start difference. First operand 558 states and 908 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-12 19:18:14,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:18:14,583 INFO L93 Difference]: Finished difference Result 1330 states and 2218 transitions. [2024-10-12 19:18:14,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:18:14,583 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 101 [2024-10-12 19:18:14,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:18:14,587 INFO L225 Difference]: With dead ends: 1330 [2024-10-12 19:18:14,587 INFO L226 Difference]: Without dead ends: 828 [2024-10-12 19:18:14,589 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-10-12 19:18:14,589 INFO L432 NwaCegarLoop]: 443 mSDtfsCounter, 1464 mSDsluCounter, 1203 mSDsCounter, 0 mSdLazyCounter, 2731 mSolverCounterSat, 367 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1545 SdHoareTripleChecker+Valid, 1646 SdHoareTripleChecker+Invalid, 3098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 367 IncrementalHoareTripleChecker+Valid, 2731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:18:14,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1545 Valid, 1646 Invalid, 3098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [367 Valid, 2731 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-10-12 19:18:14,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2024-10-12 19:18:14,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 558. [2024-10-12 19:18:14,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 435 states have (on average 1.6367816091954024) internal successors, (712), 456 states have internal predecessors, (712), 97 states have call successors, (97), 24 states have call predecessors, (97), 25 states have return successors, (94), 90 states have call predecessors, (94), 92 states have call successors, (94) [2024-10-12 19:18:14,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 903 transitions. [2024-10-12 19:18:14,676 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 903 transitions. Word has length 101 [2024-10-12 19:18:14,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:18:14,677 INFO L471 AbstractCegarLoop]: Abstraction has 558 states and 903 transitions. [2024-10-12 19:18:14,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-12 19:18:14,677 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 903 transitions. [2024-10-12 19:18:14,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-12 19:18:14,679 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:18:14,679 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:18:14,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-12 19:18:14,679 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:18:14,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:18:14,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1676950727, now seen corresponding path program 1 times [2024-10-12 19:18:14,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:18:14,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863116575] [2024-10-12 19:18:14,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:18:14,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:18:14,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:14,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:18:14,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:14,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:14,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:14,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:18:14,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:15,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-12 19:18:15,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:15,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:15,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:15,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:15,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:15,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:15,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:15,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:18:15,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:15,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:18:15,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:15,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:15,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:15,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:15,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:15,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:18:15,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:15,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-12 19:18:15,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:15,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-12 19:18:15,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:15,205 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-12 19:18:15,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:18:15,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863116575] [2024-10-12 19:18:15,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863116575] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:18:15,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:18:15,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-12 19:18:15,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779789525] [2024-10-12 19:18:15,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:18:15,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-12 19:18:15,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:18:15,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-12 19:18:15,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-12 19:18:15,208 INFO L87 Difference]: Start difference. First operand 558 states and 903 transitions. Second operand has 10 states, 9 states have (on average 7.333333333333333) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-12 19:18:20,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:18:20,407 INFO L93 Difference]: Finished difference Result 1317 states and 2189 transitions. [2024-10-12 19:18:20,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 19:18:20,407 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.333333333333333) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 102 [2024-10-12 19:18:20,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:18:20,412 INFO L225 Difference]: With dead ends: 1317 [2024-10-12 19:18:20,412 INFO L226 Difference]: Without dead ends: 830 [2024-10-12 19:18:20,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-10-12 19:18:20,414 INFO L432 NwaCegarLoop]: 449 mSDtfsCounter, 990 mSDsluCounter, 2577 mSDsCounter, 0 mSdLazyCounter, 5231 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1072 SdHoareTripleChecker+Valid, 3026 SdHoareTripleChecker+Invalid, 5441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 5231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-10-12 19:18:20,414 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1072 Valid, 3026 Invalid, 5441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 5231 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-10-12 19:18:20,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2024-10-12 19:18:20,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 562. [2024-10-12 19:18:20,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 439 states have (on average 1.6287015945330297) internal successors, (715), 460 states have internal predecessors, (715), 97 states have call successors, (97), 24 states have call predecessors, (97), 25 states have return successors, (94), 90 states have call predecessors, (94), 92 states have call successors, (94) [2024-10-12 19:18:20,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 906 transitions. [2024-10-12 19:18:20,530 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 906 transitions. Word has length 102 [2024-10-12 19:18:20,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:18:20,530 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 906 transitions. [2024-10-12 19:18:20,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.333333333333333) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-12 19:18:20,530 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 906 transitions. [2024-10-12 19:18:20,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-12 19:18:20,532 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:18:20,536 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:18:20,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-12 19:18:20,536 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:18:20,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:18:20,537 INFO L85 PathProgramCache]: Analyzing trace with hash -995623257, now seen corresponding path program 1 times [2024-10-12 19:18:20,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:18:20,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705844379] [2024-10-12 19:18:20,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:18:20,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:18:20,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:20,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:18:20,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:20,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:20,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:20,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:18:20,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:20,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-12 19:18:20,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:20,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:20,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:20,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:20,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:20,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:20,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:20,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:18:20,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:20,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:18:20,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:20,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:20,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:20,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:20,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:20,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:18:20,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:20,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-12 19:18:20,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:20,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-12 19:18:20,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:20,951 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-12 19:18:20,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:18:20,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705844379] [2024-10-12 19:18:20,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705844379] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:18:20,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:18:20,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:18:20,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939844974] [2024-10-12 19:18:20,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:18:20,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:18:20,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:18:20,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:18:20,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:18:20,955 INFO L87 Difference]: Start difference. First operand 562 states and 906 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-12 19:18:24,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:18:24,673 INFO L93 Difference]: Finished difference Result 1368 states and 2248 transitions. [2024-10-12 19:18:24,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 19:18:24,673 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 102 [2024-10-12 19:18:24,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:18:24,679 INFO L225 Difference]: With dead ends: 1368 [2024-10-12 19:18:24,679 INFO L226 Difference]: Without dead ends: 800 [2024-10-12 19:18:24,681 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-10-12 19:18:24,681 INFO L432 NwaCegarLoop]: 446 mSDtfsCounter, 1811 mSDsluCounter, 1159 mSDsCounter, 0 mSdLazyCounter, 2668 mSolverCounterSat, 512 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1892 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 3180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 2668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:18:24,682 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1892 Valid, 1605 Invalid, 3180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [512 Valid, 2668 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-10-12 19:18:24,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2024-10-12 19:18:24,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 544. [2024-10-12 19:18:24,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 424 states have (on average 1.6367924528301887) internal successors, (694), 443 states have internal predecessors, (694), 96 states have call successors, (96), 24 states have call predecessors, (96), 23 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) [2024-10-12 19:18:24,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 881 transitions. [2024-10-12 19:18:24,817 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 881 transitions. Word has length 102 [2024-10-12 19:18:24,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:18:24,817 INFO L471 AbstractCegarLoop]: Abstraction has 544 states and 881 transitions. [2024-10-12 19:18:24,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-12 19:18:24,818 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 881 transitions. [2024-10-12 19:18:24,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-10-12 19:18:24,819 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:18:24,819 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:18:24,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-12 19:18:24,820 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:18:24,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:18:24,820 INFO L85 PathProgramCache]: Analyzing trace with hash 241165932, now seen corresponding path program 1 times [2024-10-12 19:18:24,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:18:24,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473659725] [2024-10-12 19:18:24,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:18:24,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:18:24,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:25,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:18:25,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:25,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:25,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:25,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:18:25,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:25,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-12 19:18:25,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:25,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:25,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:25,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:25,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:25,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:25,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:25,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:18:25,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:25,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:18:25,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:25,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:25,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:25,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:25,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:25,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:18:25,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:25,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-12 19:18:25,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:25,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-12 19:18:25,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:25,324 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-12 19:18:25,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:18:25,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473659725] [2024-10-12 19:18:25,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473659725] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:18:25,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:18:25,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-12 19:18:25,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045466372] [2024-10-12 19:18:25,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:18:25,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-12 19:18:25,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:18:25,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-12 19:18:25,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-12 19:18:25,326 INFO L87 Difference]: Start difference. First operand 544 states and 881 transitions. Second operand has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-12 19:18:30,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:18:30,840 INFO L93 Difference]: Finished difference Result 1295 states and 2153 transitions. [2024-10-12 19:18:30,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 19:18:30,841 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 103 [2024-10-12 19:18:30,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:18:30,845 INFO L225 Difference]: With dead ends: 1295 [2024-10-12 19:18:30,845 INFO L226 Difference]: Without dead ends: 810 [2024-10-12 19:18:30,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-10-12 19:18:30,847 INFO L432 NwaCegarLoop]: 441 mSDtfsCounter, 1394 mSDsluCounter, 2510 mSDsCounter, 0 mSdLazyCounter, 5038 mSolverCounterSat, 364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1475 SdHoareTripleChecker+Valid, 2951 SdHoareTripleChecker+Invalid, 5402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 364 IncrementalHoareTripleChecker+Valid, 5038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:18:30,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1475 Valid, 2951 Invalid, 5402 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [364 Valid, 5038 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-10-12 19:18:30,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2024-10-12 19:18:30,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 549. [2024-10-12 19:18:30,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 429 states have (on average 1.6293706293706294) internal successors, (699), 448 states have internal predecessors, (699), 96 states have call successors, (96), 24 states have call predecessors, (96), 23 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) [2024-10-12 19:18:30,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 886 transitions. [2024-10-12 19:18:30,939 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 886 transitions. Word has length 103 [2024-10-12 19:18:30,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:18:30,939 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 886 transitions. [2024-10-12 19:18:30,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-12 19:18:30,940 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 886 transitions. [2024-10-12 19:18:30,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-12 19:18:30,941 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:18:30,941 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:18:30,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-12 19:18:30,941 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:18:30,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:18:30,942 INFO L85 PathProgramCache]: Analyzing trace with hash 31342588, now seen corresponding path program 1 times [2024-10-12 19:18:30,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:18:30,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948747509] [2024-10-12 19:18:30,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:18:30,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:18:30,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:31,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:18:31,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:31,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:31,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:31,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:18:31,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:31,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 19:18:31,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:31,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:31,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:31,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:31,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:31,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:31,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:31,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:18:31,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:31,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:18:31,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:31,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:31,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:31,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:31,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:31,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:18:31,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:31,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-12 19:18:31,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:31,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-12 19:18:31,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:31,633 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-12 19:18:31,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:18:31,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948747509] [2024-10-12 19:18:31,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948747509] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:18:31,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248416542] [2024-10-12 19:18:31,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:18:31,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:18:31,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:18:31,637 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) [2024-10-12 19:18:31,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-12 19:18:31,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:31,931 INFO L255 TraceCheckSpWp]: Trace formula consists of 1415 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 19:18:31,935 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:18:32,028 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-12 19:18:32,032 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 19:18:32,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248416542] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:18:32,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 19:18:32,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [15] total 18 [2024-10-12 19:18:32,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533679153] [2024-10-12 19:18:32,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:18:32,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 19:18:32,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:18:32,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 19:18:32,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2024-10-12 19:18:32,037 INFO L87 Difference]: Start difference. First operand 549 states and 886 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-12 19:18:32,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:18:32,694 INFO L93 Difference]: Finished difference Result 1035 states and 1720 transitions. [2024-10-12 19:18:32,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 19:18:32,695 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 104 [2024-10-12 19:18:32,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:18:32,701 INFO L225 Difference]: With dead ends: 1035 [2024-10-12 19:18:32,701 INFO L226 Difference]: Without dead ends: 557 [2024-10-12 19:18:32,707 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2024-10-12 19:18:32,707 INFO L432 NwaCegarLoop]: 842 mSDtfsCounter, 844 mSDsluCounter, 1318 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 2160 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-12 19:18:32,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [848 Valid, 2160 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-12 19:18:32,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-10-12 19:18:32,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2024-10-12 19:18:32,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 436 states have (on average 1.6307339449541285) internal successors, (711), 455 states have internal predecessors, (711), 96 states have call successors, (96), 25 states have call predecessors, (96), 24 states have return successors, (92), 89 states have call predecessors, (92), 91 states have call successors, (92) [2024-10-12 19:18:32,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 899 transitions. [2024-10-12 19:18:32,875 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 899 transitions. Word has length 104 [2024-10-12 19:18:32,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:18:32,876 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 899 transitions. [2024-10-12 19:18:32,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-12 19:18:32,876 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 899 transitions. [2024-10-12 19:18:32,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-12 19:18:32,877 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:18:32,877 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:18:32,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-12 19:18:33,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:18:33,081 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:18:33,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:18:33,082 INFO L85 PathProgramCache]: Analyzing trace with hash -970511850, now seen corresponding path program 1 times [2024-10-12 19:18:33,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:18:33,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810913921] [2024-10-12 19:18:33,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:18:33,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:18:33,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:33,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:18:33,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:33,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:33,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:33,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:18:33,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:33,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 19:18:33,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:33,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:33,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:33,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:33,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:33,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:33,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:33,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-12 19:18:33,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:33,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:18:33,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:33,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:33,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:33,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:33,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:33,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-12 19:18:33,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:33,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-12 19:18:33,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:33,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-12 19:18:33,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:33,603 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-12 19:18:33,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:18:33,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810913921] [2024-10-12 19:18:33,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810913921] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:18:33,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:18:33,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-12 19:18:33,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569460851] [2024-10-12 19:18:33,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:18:33,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 19:18:33,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:18:33,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 19:18:33,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-12 19:18:33,605 INFO L87 Difference]: Start difference. First operand 557 states and 899 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-12 19:18:38,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:18:38,688 INFO L93 Difference]: Finished difference Result 1311 states and 2219 transitions. [2024-10-12 19:18:38,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-12 19:18:38,688 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) Word has length 106 [2024-10-12 19:18:38,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:18:38,693 INFO L225 Difference]: With dead ends: 1311 [2024-10-12 19:18:38,693 INFO L226 Difference]: Without dead ends: 823 [2024-10-12 19:18:38,695 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2024-10-12 19:18:38,696 INFO L432 NwaCegarLoop]: 444 mSDtfsCounter, 2604 mSDsluCounter, 1441 mSDsCounter, 0 mSdLazyCounter, 3579 mSolverCounterSat, 864 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2614 SdHoareTripleChecker+Valid, 1885 SdHoareTripleChecker+Invalid, 4443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 864 IncrementalHoareTripleChecker+Valid, 3579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-10-12 19:18:38,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2614 Valid, 1885 Invalid, 4443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [864 Valid, 3579 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-10-12 19:18:38,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2024-10-12 19:18:38,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 562. [2024-10-12 19:18:38,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 440 states have (on average 1.6227272727272728) internal successors, (714), 459 states have internal predecessors, (714), 96 states have call successors, (96), 26 states have call predecessors, (96), 25 states have return successors, (93), 89 states have call predecessors, (93), 91 states have call successors, (93) [2024-10-12 19:18:38,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 903 transitions. [2024-10-12 19:18:38,801 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 903 transitions. Word has length 106 [2024-10-12 19:18:38,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:18:38,801 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 903 transitions. [2024-10-12 19:18:38,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-12 19:18:38,801 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 903 transitions. [2024-10-12 19:18:38,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-10-12 19:18:38,803 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:18:38,803 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:18:38,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-12 19:18:38,803 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:18:38,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:18:38,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1967525316, now seen corresponding path program 1 times [2024-10-12 19:18:38,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:18:38,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962970461] [2024-10-12 19:18:38,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:18:38,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:18:38,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:38,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:18:38,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:38,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:38,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:38,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:18:38,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:39,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 19:18:39,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:39,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:39,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:39,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:39,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:39,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:39,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:39,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:18:39,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:39,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-12 19:18:39,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:39,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:39,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:39,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:39,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:39,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:18:39,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:39,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-12 19:18:39,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:39,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-12 19:18:39,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:39,331 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-12 19:18:39,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:18:39,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962970461] [2024-10-12 19:18:39,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962970461] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:18:39,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:18:39,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-12 19:18:39,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622527826] [2024-10-12 19:18:39,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:18:39,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 19:18:39,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:18:39,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 19:18:39,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-12 19:18:39,334 INFO L87 Difference]: Start difference. First operand 562 states and 903 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 6 states have internal predecessors, (76), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-12 19:18:44,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:18:44,578 INFO L93 Difference]: Finished difference Result 1322 states and 2223 transitions. [2024-10-12 19:18:44,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-12 19:18:44,579 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 6 states have internal predecessors, (76), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) Word has length 108 [2024-10-12 19:18:44,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:18:44,583 INFO L225 Difference]: With dead ends: 1322 [2024-10-12 19:18:44,584 INFO L226 Difference]: Without dead ends: 829 [2024-10-12 19:18:44,586 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2024-10-12 19:18:44,586 INFO L432 NwaCegarLoop]: 449 mSDtfsCounter, 2177 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 3714 mSolverCounterSat, 705 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2187 SdHoareTripleChecker+Valid, 1957 SdHoareTripleChecker+Invalid, 4419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 705 IncrementalHoareTripleChecker+Valid, 3714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-10-12 19:18:44,586 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2187 Valid, 1957 Invalid, 4419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [705 Valid, 3714 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-10-12 19:18:44,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 829 states. [2024-10-12 19:18:44,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 829 to 568. [2024-10-12 19:18:44,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 445 states have (on average 1.6134831460674157) internal successors, (718), 464 states have internal predecessors, (718), 96 states have call successors, (96), 27 states have call predecessors, (96), 26 states have return successors, (94), 89 states have call predecessors, (94), 91 states have call successors, (94) [2024-10-12 19:18:44,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 908 transitions. [2024-10-12 19:18:44,691 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 908 transitions. Word has length 108 [2024-10-12 19:18:44,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:18:44,691 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 908 transitions. [2024-10-12 19:18:44,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 6 states have internal predecessors, (76), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-12 19:18:44,691 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 908 transitions. [2024-10-12 19:18:44,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-10-12 19:18:44,693 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:18:44,693 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:18:44,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-12 19:18:44,693 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:18:44,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:18:44,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1395219806, now seen corresponding path program 1 times [2024-10-12 19:18:44,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:18:44,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236948374] [2024-10-12 19:18:44,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:18:44,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:18:44,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:44,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:18:44,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:44,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:44,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:44,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:18:44,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:45,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 19:18:45,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:45,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:45,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:45,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:45,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:45,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:45,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:45,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-12 19:18:45,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:45,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-12 19:18:45,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:45,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:45,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:45,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:45,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:45,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-12 19:18:45,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:45,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-12 19:18:45,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:45,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-12 19:18:45,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:45,204 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-12 19:18:45,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:18:45,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236948374] [2024-10-12 19:18:45,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236948374] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:18:45,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:18:45,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-12 19:18:45,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062672779] [2024-10-12 19:18:45,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:18:45,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 19:18:45,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:18:45,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 19:18:45,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-12 19:18:45,206 INFO L87 Difference]: Start difference. First operand 568 states and 908 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-12 19:18:50,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:18:50,312 INFO L93 Difference]: Finished difference Result 1335 states and 2229 transitions. [2024-10-12 19:18:50,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-12 19:18:50,312 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) Word has length 110 [2024-10-12 19:18:50,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:18:50,317 INFO L225 Difference]: With dead ends: 1335 [2024-10-12 19:18:50,317 INFO L226 Difference]: Without dead ends: 836 [2024-10-12 19:18:50,319 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2024-10-12 19:18:50,320 INFO L432 NwaCegarLoop]: 446 mSDtfsCounter, 2181 mSDsluCounter, 1504 mSDsCounter, 0 mSdLazyCounter, 3710 mSolverCounterSat, 707 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2191 SdHoareTripleChecker+Valid, 1950 SdHoareTripleChecker+Invalid, 4417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 707 IncrementalHoareTripleChecker+Valid, 3710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-10-12 19:18:50,320 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2191 Valid, 1950 Invalid, 4417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [707 Valid, 3710 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-10-12 19:18:50,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2024-10-12 19:18:50,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 575. [2024-10-12 19:18:50,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 451 states have (on average 1.6031042128603104) internal successors, (723), 470 states have internal predecessors, (723), 96 states have call successors, (96), 28 states have call predecessors, (96), 27 states have return successors, (95), 89 states have call predecessors, (95), 91 states have call successors, (95) [2024-10-12 19:18:50,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 914 transitions. [2024-10-12 19:18:50,434 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 914 transitions. Word has length 110 [2024-10-12 19:18:50,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:18:50,434 INFO L471 AbstractCegarLoop]: Abstraction has 575 states and 914 transitions. [2024-10-12 19:18:50,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-12 19:18:50,434 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 914 transitions. [2024-10-12 19:18:50,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-12 19:18:50,436 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:18:50,436 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:18:50,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-12 19:18:50,436 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:18:50,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:18:50,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1158433156, now seen corresponding path program 1 times [2024-10-12 19:18:50,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:18:50,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25940141] [2024-10-12 19:18:50,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:18:50,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:18:50,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:50,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:18:50,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:50,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:50,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:50,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:18:50,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:50,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 19:18:50,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:51,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:51,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:51,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:51,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:51,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:51,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:51,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-12 19:18:51,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:51,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-12 19:18:51,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:51,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:51,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:51,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:51,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:51,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-12 19:18:51,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:51,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-12 19:18:51,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:51,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-12 19:18:51,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:51,281 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-12 19:18:51,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:18:51,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25940141] [2024-10-12 19:18:51,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25940141] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:18:51,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1208797420] [2024-10-12 19:18:51,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:18:51,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:18:51,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:18:51,283 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) [2024-10-12 19:18:51,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-12 19:18:51,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:51,542 INFO L255 TraceCheckSpWp]: Trace formula consists of 1423 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 19:18:51,545 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:18:51,696 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-12 19:18:51,697 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 19:18:51,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1208797420] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:18:51,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 19:18:51,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [15] total 18 [2024-10-12 19:18:51,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542264980] [2024-10-12 19:18:51,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:18:51,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 19:18:51,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:18:51,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 19:18:51,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-10-12 19:18:51,700 INFO L87 Difference]: Start difference. First operand 575 states and 914 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-12 19:18:52,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:18:52,085 INFO L93 Difference]: Finished difference Result 621 states and 983 transitions. [2024-10-12 19:18:52,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 19:18:52,087 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 112 [2024-10-12 19:18:52,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:18:52,091 INFO L225 Difference]: With dead ends: 621 [2024-10-12 19:18:52,091 INFO L226 Difference]: Without dead ends: 606 [2024-10-12 19:18:52,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-10-12 19:18:52,092 INFO L432 NwaCegarLoop]: 851 mSDtfsCounter, 817 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 1549 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-12 19:18:52,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [825 Valid, 1549 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-12 19:18:52,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2024-10-12 19:18:52,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 577. [2024-10-12 19:18:52,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 453 states have (on average 1.6004415011037527) internal successors, (725), 472 states have internal predecessors, (725), 96 states have call successors, (96), 28 states have call predecessors, (96), 27 states have return successors, (95), 89 states have call predecessors, (95), 91 states have call successors, (95) [2024-10-12 19:18:52,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 916 transitions. [2024-10-12 19:18:52,200 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 916 transitions. Word has length 112 [2024-10-12 19:18:52,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:18:52,201 INFO L471 AbstractCegarLoop]: Abstraction has 577 states and 916 transitions. [2024-10-12 19:18:52,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-12 19:18:52,201 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 916 transitions. [2024-10-12 19:18:52,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-10-12 19:18:52,202 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:18:52,203 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:18:52,217 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-12 19:18:52,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-10-12 19:18:52,404 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:18:52,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:18:52,404 INFO L85 PathProgramCache]: Analyzing trace with hash -800321861, now seen corresponding path program 1 times [2024-10-12 19:18:52,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:18:52,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764163239] [2024-10-12 19:18:52,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:18:52,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:18:52,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:52,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:18:52,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:52,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:52,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:52,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 19:18:52,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:52,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 19:18:52,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:52,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:52,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:52,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:52,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:52,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:52,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:52,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-12 19:18:52,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:52,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-12 19:18:52,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:52,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:52,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:52,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:18:52,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:52,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-12 19:18:52,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:53,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-12 19:18:53,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:53,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-12 19:18:53,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:53,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-12 19:18:53,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:18:53,023 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-12 19:18:53,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:18:53,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764163239] [2024-10-12 19:18:53,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764163239] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:18:53,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:18:53,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-12 19:18:53,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911469150] [2024-10-12 19:18:53,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:18:53,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-12 19:18:53,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:18:53,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-12 19:18:53,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-10-12 19:18:53,025 INFO L87 Difference]: Start difference. First operand 577 states and 916 transitions. Second operand has 11 states, 10 states have (on average 7.5) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (15), 5 states have call predecessors, (15), 5 states have return successors, (14), 6 states have call predecessors, (14), 3 states have call successors, (14)