./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_spec13_product32.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product32.cil.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 e7c9485412041f5ced738777edbcc586e5ce326d6f265b136a50fe41e5db19fb --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 02:30:58,982 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 02:30:59,050 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 02:30:59,055 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 02:30:59,056 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 02:30:59,076 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 02:30:59,077 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 02:30:59,077 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 02:30:59,078 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 02:30:59,078 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 02:30:59,079 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 02:30:59,079 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 02:30:59,080 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 02:30:59,080 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 02:30:59,080 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 02:30:59,080 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 02:30:59,081 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 02:30:59,081 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 02:30:59,081 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 02:30:59,081 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 02:30:59,081 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 02:30:59,084 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 02:30:59,084 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 02:30:59,085 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 02:30:59,085 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 02:30:59,085 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 02:30:59,085 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 02:30:59,085 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 02:30:59,085 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 02:30:59,086 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 02:30:59,086 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 02:30:59,086 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 02:30:59,086 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 02:30:59,086 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 02:30:59,086 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 02:30:59,086 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 02:30:59,087 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 02:30:59,087 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 02:30:59,087 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 02:30:59,087 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 02:30:59,087 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 02:30:59,088 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 02:30:59,088 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7c9485412041f5ced738777edbcc586e5ce326d6f265b136a50fe41e5db19fb [2024-10-11 02:30:59,276 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 02:30:59,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 02:30:59,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 02:30:59,297 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 02:30:59,298 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 02:30:59,299 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product32.cil.c [2024-10-11 02:31:00,566 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 02:31:00,813 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 02:31:00,814 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product32.cil.c [2024-10-11 02:31:00,837 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/e82198f44/c3a9aa4c81e349209d9a8d9060907e18/FLAGaebf19960 [2024-10-11 02:31:00,852 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/e82198f44/c3a9aa4c81e349209d9a8d9060907e18 [2024-10-11 02:31:00,854 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 02:31:00,856 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 02:31:00,859 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 02:31:00,859 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 02:31:00,864 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 02:31:00,864 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:31:00" (1/1) ... [2024-10-11 02:31:00,865 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60fa9c36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:00, skipping insertion in model container [2024-10-11 02:31:00,865 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:31:00" (1/1) ... [2024-10-11 02:31:00,913 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 02:31:01,090 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_spec13_product32.cil.c[1546,1559] [2024-10-11 02:31:01,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 02:31:01,363 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 02:31:01,370 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [48] [2024-10-11 02:31:01,371 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [57] [2024-10-11 02:31:01,371 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification13_spec.i","") [160] [2024-10-11 02:31:01,372 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [251] [2024-10-11 02:31:01,372 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [604] [2024-10-11 02:31:01,372 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1271] [2024-10-11 02:31:01,372 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1391] [2024-10-11 02:31:01,372 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1426] [2024-10-11 02:31:01,373 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1792] [2024-10-11 02:31:01,373 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [3453] [2024-10-11 02:31:01,376 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_spec13_product32.cil.c[1546,1559] [2024-10-11 02:31:01,454 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 02:31:01,475 INFO L204 MainTranslator]: Completed translation [2024-10-11 02:31:01,476 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:01 WrapperNode [2024-10-11 02:31:01,476 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 02:31:01,477 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 02:31:01,477 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 02:31:01,477 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 02:31:01,483 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:01" (1/1) ... [2024-10-11 02:31:01,506 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:01" (1/1) ... [2024-10-11 02:31:01,547 INFO L138 Inliner]: procedures = 97, calls = 354, calls flagged for inlining = 30, calls inlined = 26, statements flattened = 937 [2024-10-11 02:31:01,547 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 02:31:01,549 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 02:31:01,549 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 02:31:01,549 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 02:31:01,557 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:01" (1/1) ... [2024-10-11 02:31:01,557 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:01" (1/1) ... [2024-10-11 02:31:01,562 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:01" (1/1) ... [2024-10-11 02:31:01,597 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]. [2024-10-11 02:31:01,597 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:01" (1/1) ... [2024-10-11 02:31:01,598 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:01" (1/1) ... [2024-10-11 02:31:01,623 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:01" (1/1) ... [2024-10-11 02:31:01,639 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:01" (1/1) ... [2024-10-11 02:31:01,655 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:01" (1/1) ... [2024-10-11 02:31:01,660 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:01" (1/1) ... [2024-10-11 02:31:01,673 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 02:31:01,676 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 02:31:01,676 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 02:31:01,676 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 02:31:01,677 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:01" (1/1) ... [2024-10-11 02:31:01,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 02:31:01,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:31:01,708 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 02:31:01,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 02:31:01,748 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2024-10-11 02:31:01,748 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2024-10-11 02:31:01,749 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2024-10-11 02:31:01,749 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2024-10-11 02:31:01,749 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-10-11 02:31:01,749 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-10-11 02:31:01,749 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-10-11 02:31:01,749 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-10-11 02:31:01,750 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2024-10-11 02:31:01,750 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2024-10-11 02:31:01,750 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-11 02:31:01,750 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-11 02:31:01,750 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-10-11 02:31:01,750 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-10-11 02:31:01,751 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-10-11 02:31:01,751 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-10-11 02:31:01,751 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-10-11 02:31:01,751 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-10-11 02:31:01,752 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2024-10-11 02:31:01,752 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2024-10-11 02:31:01,752 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-10-11 02:31:01,752 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-10-11 02:31:01,752 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-10-11 02:31:01,752 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-10-11 02:31:01,752 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2024-10-11 02:31:01,753 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2024-10-11 02:31:01,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 02:31:01,753 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2024-10-11 02:31:01,753 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2024-10-11 02:31:01,754 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-10-11 02:31:01,754 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-10-11 02:31:01,754 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2024-10-11 02:31:01,754 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2024-10-11 02:31:01,754 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2024-10-11 02:31:01,754 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2024-10-11 02:31:01,754 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-10-11 02:31:01,754 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-10-11 02:31:01,755 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-11 02:31:01,755 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-11 02:31:01,755 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-10-11 02:31:01,755 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-10-11 02:31:01,755 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-10-11 02:31:01,755 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-10-11 02:31:01,755 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-10-11 02:31:01,755 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-10-11 02:31:01,755 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-10-11 02:31:01,756 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-10-11 02:31:01,756 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-10-11 02:31:01,756 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-10-11 02:31:01,756 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-10-11 02:31:01,756 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-10-11 02:31:01,756 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-10-11 02:31:01,756 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-10-11 02:31:01,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 02:31:01,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 02:31:01,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-11 02:31:01,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-11 02:31:01,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-11 02:31:01,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-11 02:31:01,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-11 02:31:01,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-11 02:31:01,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-11 02:31:01,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-10-11 02:31:01,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-10-11 02:31:01,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-10-11 02:31:01,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-10-11 02:31:01,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-10-11 02:31:01,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-10-11 02:31:01,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-10-11 02:31:01,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-10-11 02:31:01,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-10-11 02:31:01,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-10-11 02:31:01,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-10-11 02:31:01,759 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-10-11 02:31:01,759 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-10-11 02:31:01,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 02:31:01,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 02:31:01,759 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-10-11 02:31:01,759 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-10-11 02:31:01,760 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2024-10-11 02:31:01,760 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2024-10-11 02:31:01,926 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 02:31:01,928 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 02:31:02,923 INFO L? ?]: Removed 498 outVars from TransFormulas that were not future-live. [2024-10-11 02:31:02,923 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 02:31:03,009 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 02:31:03,009 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-11 02:31:03,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:31:03 BoogieIcfgContainer [2024-10-11 02:31:03,009 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 02:31:03,011 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 02:31:03,011 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 02:31:03,014 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 02:31:03,014 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:31:00" (1/3) ... [2024-10-11 02:31:03,016 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bf3b388 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:31:03, skipping insertion in model container [2024-10-11 02:31:03,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:01" (2/3) ... [2024-10-11 02:31:03,017 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bf3b388 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:31:03, skipping insertion in model container [2024-10-11 02:31:03,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:31:03" (3/3) ... [2024-10-11 02:31:03,018 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec13_product32.cil.c [2024-10-11 02:31:03,031 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 02:31:03,031 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 02:31:03,108 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 02:31:03,114 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;@7912461c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 02:31:03,114 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 02:31:03,120 INFO L276 IsEmpty]: Start isEmpty. Operand has 613 states, 472 states have (on average 1.7076271186440677) internal successors, (806), 492 states have internal predecessors, (806), 110 states have call successors, (110), 29 states have call predecessors, (110), 29 states have return successors, (110), 106 states have call predecessors, (110), 110 states have call successors, (110) [2024-10-11 02:31:03,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-11 02:31:03,135 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:31:03,135 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:31:03,136 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:31:03,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:31:03,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1537108107, now seen corresponding path program 1 times [2024-10-11 02:31:03,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:31:03,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341390135] [2024-10-11 02:31:03,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:03,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:31:03,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:03,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:03,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:03,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:31:03,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:03,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 02:31:03,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:03,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:03,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:03,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:31:03,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:04,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 02:31:04,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:04,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:04,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:04,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 02:31:04,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:04,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 02:31:04,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:04,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 02:31:04,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:04,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-11 02:31:04,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:04,069 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-10-11 02:31:04,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:31:04,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341390135] [2024-10-11 02:31:04,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341390135] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:31:04,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684716388] [2024-10-11 02:31:04,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:04,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:04,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:31:04,073 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:31:04,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 02:31:04,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:04,347 INFO L255 TraceCheckSpWp]: Trace formula consists of 1476 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 02:31:04,354 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:31:04,407 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-11 02:31:04,407 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:31:04,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684716388] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:31:04,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:31:04,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-10-11 02:31:04,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703121682] [2024-10-11 02:31:04,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:31:04,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 02:31:04,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:31:04,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 02:31:04,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-11 02:31:04,440 INFO L87 Difference]: Start difference. First operand has 613 states, 472 states have (on average 1.7076271186440677) internal successors, (806), 492 states have internal predecessors, (806), 110 states have call successors, (110), 29 states have call predecessors, (110), 29 states have return successors, (110), 106 states have call predecessors, (110), 110 states have call successors, (110) Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 02:31:04,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:31:04,638 INFO L93 Difference]: Finished difference Result 1231 states and 2074 transitions. [2024-10-11 02:31:04,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 02:31:04,640 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 84 [2024-10-11 02:31:04,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:31:04,663 INFO L225 Difference]: With dead ends: 1231 [2024-10-11 02:31:04,665 INFO L226 Difference]: Without dead ends: 616 [2024-10-11 02:31:04,674 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:31:04,677 INFO L432 NwaCegarLoop]: 984 mSDtfsCounter, 17 mSDsluCounter, 1960 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 2944 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:31:04,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 2944 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:31:04,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2024-10-11 02:31:04,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 616. [2024-10-11 02:31:04,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 477 states have (on average 1.6855345911949686) internal successors, (804), 495 states have internal predecessors, (804), 110 states have call successors, (110), 30 states have call predecessors, (110), 28 states have return successors, (107), 104 states have call predecessors, (107), 107 states have call successors, (107) [2024-10-11 02:31:04,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 1021 transitions. [2024-10-11 02:31:04,771 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 1021 transitions. Word has length 84 [2024-10-11 02:31:04,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:31:04,772 INFO L471 AbstractCegarLoop]: Abstraction has 616 states and 1021 transitions. [2024-10-11 02:31:04,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 02:31:04,772 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 1021 transitions. [2024-10-11 02:31:04,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-11 02:31:04,780 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:31:04,781 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:31:04,798 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-11 02:31:04,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-10-11 02:31:04,985 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:31:04,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:31:04,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1457580212, now seen corresponding path program 1 times [2024-10-11 02:31:04,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:31:04,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266848759] [2024-10-11 02:31:04,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:04,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:31:05,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:05,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:05,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:05,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:31:05,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:05,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 02:31:05,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:05,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:05,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:05,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:31:05,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:05,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 02:31:05,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:05,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 02:31:05,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:05,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-11 02:31:05,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:05,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-11 02:31:05,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:05,357 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 02:31:05,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:31:05,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266848759] [2024-10-11 02:31:05,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266848759] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:31:05,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206437967] [2024-10-11 02:31:05,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:05,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:05,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:31:05,362 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:31:05,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 02:31:05,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:05,605 INFO L255 TraceCheckSpWp]: Trace formula consists of 1242 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 02:31:05,612 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:31:05,655 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 02:31:05,656 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:31:05,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206437967] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:31:05,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:31:05,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-10-11 02:31:05,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323420396] [2024-10-11 02:31:05,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:31:05,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 02:31:05,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:31:05,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 02:31:05,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-10-11 02:31:05,660 INFO L87 Difference]: Start difference. First operand 616 states and 1021 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-10-11 02:31:05,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:31:05,938 INFO L93 Difference]: Finished difference Result 1287 states and 2148 transitions. [2024-10-11 02:31:05,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 02:31:05,938 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 74 [2024-10-11 02:31:05,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:31:05,943 INFO L225 Difference]: With dead ends: 1287 [2024-10-11 02:31:05,945 INFO L226 Difference]: Without dead ends: 676 [2024-10-11 02:31:05,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-10-11 02:31:05,949 INFO L432 NwaCegarLoop]: 962 mSDtfsCounter, 121 mSDsluCounter, 1853 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 2815 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 02:31:05,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 2815 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 02:31:05,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2024-10-11 02:31:05,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 660. [2024-10-11 02:31:05,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 660 states, 520 states have (on average 1.7057692307692307) internal successors, (887), 538 states have internal predecessors, (887), 110 states have call successors, (110), 31 states have call predecessors, (110), 29 states have return successors, (107), 104 states have call predecessors, (107), 107 states have call successors, (107) [2024-10-11 02:31:05,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 1104 transitions. [2024-10-11 02:31:05,987 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 1104 transitions. Word has length 74 [2024-10-11 02:31:05,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:31:05,987 INFO L471 AbstractCegarLoop]: Abstraction has 660 states and 1104 transitions. [2024-10-11 02:31:05,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-10-11 02:31:05,987 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 1104 transitions. [2024-10-11 02:31:05,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-11 02:31:05,989 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:31:05,990 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:31:06,007 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 02:31:06,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:06,190 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:31:06,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:31:06,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1294903090, now seen corresponding path program 1 times [2024-10-11 02:31:06,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:31:06,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745502324] [2024-10-11 02:31:06,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:06,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:31:06,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:06,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:06,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:06,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:31:06,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:06,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 02:31:06,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:06,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:06,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:06,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:31:06,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:06,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-11 02:31:06,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:06,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 02:31:06,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:06,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-11 02:31:06,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:06,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-11 02:31:06,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:06,534 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 02:31:06,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:31:06,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745502324] [2024-10-11 02:31:06,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745502324] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:31:06,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1997922937] [2024-10-11 02:31:06,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:06,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:06,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:31:06,537 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:31:06,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 02:31:06,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:06,751 INFO L255 TraceCheckSpWp]: Trace formula consists of 1244 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 02:31:06,754 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:31:06,822 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 02:31:06,823 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:31:06,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1997922937] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:31:06,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:31:06,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2024-10-11 02:31:06,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536079225] [2024-10-11 02:31:06,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:31:06,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:31:06,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:31:06,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:31:06,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-10-11 02:31:06,825 INFO L87 Difference]: Start difference. First operand 660 states and 1104 transitions. Second operand has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-10-11 02:31:06,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:31:06,984 INFO L93 Difference]: Finished difference Result 1338 states and 2238 transitions. [2024-10-11 02:31:06,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 02:31:06,984 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 76 [2024-10-11 02:31:06,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:31:06,989 INFO L225 Difference]: With dead ends: 1338 [2024-10-11 02:31:06,989 INFO L226 Difference]: Without dead ends: 683 [2024-10-11 02:31:06,991 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-10-11 02:31:06,992 INFO L432 NwaCegarLoop]: 978 mSDtfsCounter, 89 mSDsluCounter, 4800 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 5778 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:31:06,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 5778 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:31:06,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2024-10-11 02:31:07,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 672. [2024-10-11 02:31:07,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 529 states have (on average 1.7032136105860114) internal successors, (901), 549 states have internal predecessors, (901), 111 states have call successors, (111), 31 states have call predecessors, (111), 31 states have return successors, (112), 105 states have call predecessors, (112), 108 states have call successors, (112) [2024-10-11 02:31:07,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 1124 transitions. [2024-10-11 02:31:07,014 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 1124 transitions. Word has length 76 [2024-10-11 02:31:07,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:31:07,014 INFO L471 AbstractCegarLoop]: Abstraction has 672 states and 1124 transitions. [2024-10-11 02:31:07,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-10-11 02:31:07,015 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 1124 transitions. [2024-10-11 02:31:07,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-11 02:31:07,016 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:31:07,016 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:31:07,038 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 02:31:07,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:07,217 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:31:07,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:31:07,218 INFO L85 PathProgramCache]: Analyzing trace with hash -102353638, now seen corresponding path program 1 times [2024-10-11 02:31:07,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:31:07,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903671343] [2024-10-11 02:31:07,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:07,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:31:07,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:07,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:07,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:07,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:31:07,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:07,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 02:31:07,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:07,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:07,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:07,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:31:07,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:07,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-11 02:31:07,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:07,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:07,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:07,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 02:31:07,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:07,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 02:31:07,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:07,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 02:31:07,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:07,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-11 02:31:07,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:07,702 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-11 02:31:07,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:31:07,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903671343] [2024-10-11 02:31:07,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903671343] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:31:07,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978387847] [2024-10-11 02:31:07,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:07,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:07,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:31:07,705 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:31:07,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 02:31:07,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:07,928 INFO L255 TraceCheckSpWp]: Trace formula consists of 1481 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 02:31:07,931 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:31:07,998 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-10-11 02:31:07,998 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:31:07,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978387847] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:31:07,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:31:07,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-10-11 02:31:07,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469184926] [2024-10-11 02:31:07,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:31:07,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:31:07,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:31:08,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:31:08,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-10-11 02:31:08,000 INFO L87 Difference]: Start difference. First operand 672 states and 1124 transitions. Second operand has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-11 02:31:08,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:31:08,134 INFO L93 Difference]: Finished difference Result 1356 states and 2267 transitions. [2024-10-11 02:31:08,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 02:31:08,135 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 89 [2024-10-11 02:31:08,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:31:08,142 INFO L225 Difference]: With dead ends: 1356 [2024-10-11 02:31:08,142 INFO L226 Difference]: Without dead ends: 691 [2024-10-11 02:31:08,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-10-11 02:31:08,147 INFO L432 NwaCegarLoop]: 978 mSDtfsCounter, 100 mSDsluCounter, 4788 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 5766 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:31:08,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 5766 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:31:08,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2024-10-11 02:31:08,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 672. [2024-10-11 02:31:08,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 529 states have (on average 1.7032136105860114) internal successors, (901), 549 states have internal predecessors, (901), 111 states have call successors, (111), 31 states have call predecessors, (111), 31 states have return successors, (112), 105 states have call predecessors, (112), 108 states have call successors, (112) [2024-10-11 02:31:08,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 1124 transitions. [2024-10-11 02:31:08,174 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 1124 transitions. Word has length 89 [2024-10-11 02:31:08,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:31:08,174 INFO L471 AbstractCegarLoop]: Abstraction has 672 states and 1124 transitions. [2024-10-11 02:31:08,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-11 02:31:08,175 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 1124 transitions. [2024-10-11 02:31:08,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-11 02:31:08,177 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:31:08,177 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:31:08,193 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-11 02:31:08,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:08,378 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:31:08,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:31:08,378 INFO L85 PathProgramCache]: Analyzing trace with hash 2143356899, now seen corresponding path program 1 times [2024-10-11 02:31:08,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:31:08,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078173367] [2024-10-11 02:31:08,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:08,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:31:08,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:08,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:08,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:08,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 02:31:08,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:08,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 02:31:08,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:08,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:08,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:08,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:31:08,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:08,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 02:31:08,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:08,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 02:31:08,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:08,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-11 02:31:08,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:08,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 02:31:08,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:08,587 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-11 02:31:08,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:31:08,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078173367] [2024-10-11 02:31:08,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078173367] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:31:08,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1571168665] [2024-10-11 02:31:08,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:08,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:08,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:31:08,589 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:31:08,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 02:31:08,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:08,808 INFO L255 TraceCheckSpWp]: Trace formula consists of 1245 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 02:31:08,810 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:31:08,838 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-11 02:31:08,838 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:31:08,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1571168665] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:31:08,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:31:08,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-10-11 02:31:08,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798247557] [2024-10-11 02:31:08,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:31:08,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 02:31:08,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:31:08,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 02:31:08,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:31:08,842 INFO L87 Difference]: Start difference. First operand 672 states and 1124 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-10-11 02:31:08,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:31:08,931 INFO L93 Difference]: Finished difference Result 1352 states and 2259 transitions. [2024-10-11 02:31:08,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 02:31:08,931 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 77 [2024-10-11 02:31:08,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:31:08,935 INFO L225 Difference]: With dead ends: 1352 [2024-10-11 02:31:08,935 INFO L226 Difference]: Without dead ends: 683 [2024-10-11 02:31:08,938 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-11 02:31:08,938 INFO L432 NwaCegarLoop]: 979 mSDtfsCounter, 12 mSDsluCounter, 1949 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2928 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:31:08,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2928 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:31:08,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2024-10-11 02:31:08,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 681. [2024-10-11 02:31:08,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 537 states have (on average 1.6945996275605215) internal successors, (910), 557 states have internal predecessors, (910), 111 states have call successors, (111), 32 states have call predecessors, (111), 32 states have return successors, (111), 105 states have call predecessors, (111), 108 states have call successors, (111) [2024-10-11 02:31:08,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 1132 transitions. [2024-10-11 02:31:08,960 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 1132 transitions. Word has length 77 [2024-10-11 02:31:08,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:31:08,960 INFO L471 AbstractCegarLoop]: Abstraction has 681 states and 1132 transitions. [2024-10-11 02:31:08,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-10-11 02:31:08,960 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 1132 transitions. [2024-10-11 02:31:08,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-10-11 02:31:08,964 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:31:08,964 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:31:08,978 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-11 02:31:09,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:09,166 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:31:09,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:31:09,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1365071799, now seen corresponding path program 1 times [2024-10-11 02:31:09,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:31:09,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252125917] [2024-10-11 02:31:09,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:09,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:31:09,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:09,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:09,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:09,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:31:09,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:09,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:31:09,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:09,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:09,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:09,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:31:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:09,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-11 02:31:09,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:09,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:09,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:09,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 02:31:09,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:09,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-11 02:31:09,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:09,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 02:31:09,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:09,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-11 02:31:09,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:09,668 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-11 02:31:09,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:31:09,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252125917] [2024-10-11 02:31:09,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252125917] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:31:09,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399379049] [2024-10-11 02:31:09,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:09,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:09,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:31:09,674 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:31:09,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 02:31:09,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:09,908 INFO L255 TraceCheckSpWp]: Trace formula consists of 1482 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 02:31:09,911 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:31:09,981 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-10-11 02:31:09,982 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:31:09,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399379049] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:31:09,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:31:09,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-10-11 02:31:09,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905370667] [2024-10-11 02:31:09,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:31:09,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:31:09,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:31:09,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:31:09,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-10-11 02:31:09,984 INFO L87 Difference]: Start difference. First operand 681 states and 1132 transitions. Second operand has 7 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-11 02:31:10,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:31:10,156 INFO L93 Difference]: Finished difference Result 1365 states and 2270 transitions. [2024-10-11 02:31:10,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 02:31:10,157 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 90 [2024-10-11 02:31:10,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:31:10,162 INFO L225 Difference]: With dead ends: 1365 [2024-10-11 02:31:10,162 INFO L226 Difference]: Without dead ends: 702 [2024-10-11 02:31:10,164 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-10-11 02:31:10,165 INFO L432 NwaCegarLoop]: 978 mSDtfsCounter, 111 mSDsluCounter, 4776 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 5754 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:31:10,165 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 5754 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:31:10,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2024-10-11 02:31:10,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 681. [2024-10-11 02:31:10,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 537 states have (on average 1.6945996275605215) internal successors, (910), 557 states have internal predecessors, (910), 111 states have call successors, (111), 32 states have call predecessors, (111), 32 states have return successors, (111), 105 states have call predecessors, (111), 108 states have call successors, (111) [2024-10-11 02:31:10,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 1132 transitions. [2024-10-11 02:31:10,190 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 1132 transitions. Word has length 90 [2024-10-11 02:31:10,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:31:10,190 INFO L471 AbstractCegarLoop]: Abstraction has 681 states and 1132 transitions. [2024-10-11 02:31:10,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-11 02:31:10,191 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 1132 transitions. [2024-10-11 02:31:10,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-11 02:31:10,193 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:31:10,193 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:31:10,215 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-11 02:31:10,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-11 02:31:10,395 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:31:10,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:31:10,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1339456340, now seen corresponding path program 1 times [2024-10-11 02:31:10,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:31:10,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847324745] [2024-10-11 02:31:10,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:10,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:31:10,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:10,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:10,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:10,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:31:10,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:10,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:31:10,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:10,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:10,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:10,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:31:10,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:10,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 02:31:10,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:10,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 02:31:10,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:10,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 02:31:10,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:10,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-11 02:31:10,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:10,636 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-11 02:31:10,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:31:10,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847324745] [2024-10-11 02:31:10,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847324745] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:31:10,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478704136] [2024-10-11 02:31:10,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:10,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:10,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:31:10,638 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:31:10,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-11 02:31:10,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:10,827 INFO L255 TraceCheckSpWp]: Trace formula consists of 1242 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 02:31:10,830 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:31:10,896 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 02:31:10,896 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:31:10,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [478704136] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:31:10,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:31:10,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2024-10-11 02:31:10,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012826868] [2024-10-11 02:31:10,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:31:10,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 02:31:10,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:31:10,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 02:31:10,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-10-11 02:31:10,898 INFO L87 Difference]: Start difference. First operand 681 states and 1132 transitions. Second operand has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-10-11 02:31:11,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:31:11,084 INFO L93 Difference]: Finished difference Result 1367 states and 2273 transitions. [2024-10-11 02:31:11,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 02:31:11,085 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 78 [2024-10-11 02:31:11,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:31:11,113 INFO L225 Difference]: With dead ends: 1367 [2024-10-11 02:31:11,113 INFO L226 Difference]: Without dead ends: 704 [2024-10-11 02:31:11,116 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-10-11 02:31:11,116 INFO L432 NwaCegarLoop]: 968 mSDtfsCounter, 95 mSDsluCounter, 5714 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 6682 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:31:11,116 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 6682 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:31:11,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2024-10-11 02:31:11,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 681. [2024-10-11 02:31:11,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 537 states have (on average 1.6945996275605215) internal successors, (910), 557 states have internal predecessors, (910), 111 states have call successors, (111), 32 states have call predecessors, (111), 32 states have return successors, (111), 105 states have call predecessors, (111), 108 states have call successors, (111) [2024-10-11 02:31:11,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 1132 transitions. [2024-10-11 02:31:11,134 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 1132 transitions. Word has length 78 [2024-10-11 02:31:11,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:31:11,134 INFO L471 AbstractCegarLoop]: Abstraction has 681 states and 1132 transitions. [2024-10-11 02:31:11,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-10-11 02:31:11,135 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 1132 transitions. [2024-10-11 02:31:11,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-11 02:31:11,136 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:31:11,136 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:31:11,152 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-11 02:31:11,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:11,337 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:31:11,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:31:11,337 INFO L85 PathProgramCache]: Analyzing trace with hash -318826402, now seen corresponding path program 1 times [2024-10-11 02:31:11,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:31:11,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956057208] [2024-10-11 02:31:11,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:11,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:31:11,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:11,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:11,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:11,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:31:11,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:11,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 02:31:11,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:11,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:11,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:11,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:31:11,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:11,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 02:31:11,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:11,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:11,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:11,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 02:31:11,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:11,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-11 02:31:11,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:11,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-11 02:31:11,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:11,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 02:31:11,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:11,791 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-11 02:31:11,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:31:11,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956057208] [2024-10-11 02:31:11,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956057208] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:31:11,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671068253] [2024-10-11 02:31:11,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:11,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:11,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:31:11,793 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:31:11,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-11 02:31:12,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:12,028 INFO L255 TraceCheckSpWp]: Trace formula consists of 1479 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 02:31:12,031 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:31:12,101 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-10-11 02:31:12,101 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:31:12,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [671068253] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:31:12,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:31:12,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2024-10-11 02:31:12,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36739335] [2024-10-11 02:31:12,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:31:12,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 02:31:12,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:31:12,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 02:31:12,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2024-10-11 02:31:12,106 INFO L87 Difference]: Start difference. First operand 681 states and 1132 transitions. Second operand has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-11 02:31:12,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:31:12,284 INFO L93 Difference]: Finished difference Result 1367 states and 2273 transitions. [2024-10-11 02:31:12,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 02:31:12,284 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 91 [2024-10-11 02:31:12,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:31:12,289 INFO L225 Difference]: With dead ends: 1367 [2024-10-11 02:31:12,289 INFO L226 Difference]: Without dead ends: 704 [2024-10-11 02:31:12,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2024-10-11 02:31:12,292 INFO L432 NwaCegarLoop]: 968 mSDtfsCounter, 105 mSDsluCounter, 5702 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 6670 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:31:12,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 6670 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:31:12,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2024-10-11 02:31:12,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 681. [2024-10-11 02:31:12,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 537 states have (on average 1.6945996275605215) internal successors, (910), 557 states have internal predecessors, (910), 111 states have call successors, (111), 32 states have call predecessors, (111), 32 states have return successors, (111), 105 states have call predecessors, (111), 108 states have call successors, (111) [2024-10-11 02:31:12,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 1132 transitions. [2024-10-11 02:31:12,317 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 1132 transitions. Word has length 91 [2024-10-11 02:31:12,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:31:12,318 INFO L471 AbstractCegarLoop]: Abstraction has 681 states and 1132 transitions. [2024-10-11 02:31:12,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-11 02:31:12,318 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 1132 transitions. [2024-10-11 02:31:12,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-11 02:31:12,319 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:31:12,319 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:31:12,335 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-11 02:31:12,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-10-11 02:31:12,520 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:31:12,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:31:12,521 INFO L85 PathProgramCache]: Analyzing trace with hash -384208263, now seen corresponding path program 1 times [2024-10-11 02:31:12,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:31:12,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514005351] [2024-10-11 02:31:12,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:12,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:31:12,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:12,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:12,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:12,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:31:12,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:12,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:31:12,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:12,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:12,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:12,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:31:12,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:12,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 02:31:12,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:12,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 02:31:12,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:12,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 02:31:12,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:12,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 02:31:12,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:12,764 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-11 02:31:12,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:31:12,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514005351] [2024-10-11 02:31:12,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514005351] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:31:12,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224647916] [2024-10-11 02:31:12,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:12,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:12,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:31:12,766 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:31:12,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-11 02:31:12,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:12,972 INFO L255 TraceCheckSpWp]: Trace formula consists of 1244 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 02:31:12,975 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:31:13,051 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 02:31:13,052 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:31:13,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224647916] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:31:13,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:31:13,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2024-10-11 02:31:13,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515808972] [2024-10-11 02:31:13,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:31:13,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 02:31:13,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:31:13,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 02:31:13,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-10-11 02:31:13,054 INFO L87 Difference]: Start difference. First operand 681 states and 1132 transitions. Second operand has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-10-11 02:31:13,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:31:13,223 INFO L93 Difference]: Finished difference Result 1359 states and 2259 transitions. [2024-10-11 02:31:13,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 02:31:13,223 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 80 [2024-10-11 02:31:13,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:31:13,227 INFO L225 Difference]: With dead ends: 1359 [2024-10-11 02:31:13,227 INFO L226 Difference]: Without dead ends: 696 [2024-10-11 02:31:13,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-10-11 02:31:13,230 INFO L432 NwaCegarLoop]: 968 mSDtfsCounter, 115 mSDsluCounter, 5690 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 6658 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:31:13,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 6658 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:31:13,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2024-10-11 02:31:13,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 681. [2024-10-11 02:31:13,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 537 states have (on average 1.6945996275605215) internal successors, (910), 557 states have internal predecessors, (910), 111 states have call successors, (111), 32 states have call predecessors, (111), 32 states have return successors, (111), 105 states have call predecessors, (111), 108 states have call successors, (111) [2024-10-11 02:31:13,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 1132 transitions. [2024-10-11 02:31:13,246 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 1132 transitions. Word has length 80 [2024-10-11 02:31:13,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:31:13,246 INFO L471 AbstractCegarLoop]: Abstraction has 681 states and 1132 transitions. [2024-10-11 02:31:13,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-10-11 02:31:13,246 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 1132 transitions. [2024-10-11 02:31:13,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-11 02:31:13,248 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:31:13,249 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:31:13,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-11 02:31:13,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:13,449 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:31:13,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:31:13,450 INFO L85 PathProgramCache]: Analyzing trace with hash 687873212, now seen corresponding path program 1 times [2024-10-11 02:31:13,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:31:13,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678774077] [2024-10-11 02:31:13,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:13,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:31:13,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:13,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:13,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:13,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:31:13,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:13,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:31:13,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:13,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:13,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:13,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:31:13,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:13,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 02:31:13,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:13,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:13,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:13,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-11 02:31:13,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:13,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-11 02:31:13,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:13,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 02:31:13,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:13,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-11 02:31:13,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:13,841 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-10-11 02:31:13,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:31:13,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678774077] [2024-10-11 02:31:13,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678774077] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:31:13,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094253081] [2024-10-11 02:31:13,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:13,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:13,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:31:13,843 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:31:13,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-11 02:31:14,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:14,106 INFO L255 TraceCheckSpWp]: Trace formula consists of 1483 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 02:31:14,109 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:31:14,127 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-10-11 02:31:14,127 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:31:14,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094253081] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:31:14,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:31:14,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-10-11 02:31:14,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340558464] [2024-10-11 02:31:14,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:31:14,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 02:31:14,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:31:14,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 02:31:14,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:31:14,129 INFO L87 Difference]: Start difference. First operand 681 states and 1132 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, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 02:31:14,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:31:14,215 INFO L93 Difference]: Finished difference Result 1333 states and 2221 transitions. [2024-10-11 02:31:14,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 02:31:14,216 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, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 92 [2024-10-11 02:31:14,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:31:14,220 INFO L225 Difference]: With dead ends: 1333 [2024-10-11 02:31:14,220 INFO L226 Difference]: Without dead ends: 681 [2024-10-11 02:31:14,224 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-10-11 02:31:14,224 INFO L432 NwaCegarLoop]: 976 mSDtfsCounter, 20 mSDsluCounter, 1946 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 2922 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:31:14,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 2922 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:31:14,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2024-10-11 02:31:14,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 681. [2024-10-11 02:31:14,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 537 states have (on average 1.685288640595903) internal successors, (905), 557 states have internal predecessors, (905), 111 states have call successors, (111), 32 states have call predecessors, (111), 32 states have return successors, (111), 105 states have call predecessors, (111), 108 states have call successors, (111) [2024-10-11 02:31:14,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 1127 transitions. [2024-10-11 02:31:14,250 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 1127 transitions. Word has length 92 [2024-10-11 02:31:14,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:31:14,251 INFO L471 AbstractCegarLoop]: Abstraction has 681 states and 1127 transitions. [2024-10-11 02:31:14,251 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, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 02:31:14,251 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 1127 transitions. [2024-10-11 02:31:14,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-11 02:31:14,252 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:31:14,253 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:31:14,267 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-11 02:31:14,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-11 02:31:14,454 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:31:14,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:31:14,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1858101996, now seen corresponding path program 1 times [2024-10-11 02:31:14,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:31:14,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398723460] [2024-10-11 02:31:14,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:14,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:31:14,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:14,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:14,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:14,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:31:14,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:14,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:31:14,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:14,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:14,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:14,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:31:14,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:14,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-11 02:31:14,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:14,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 02:31:14,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:14,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-11 02:31:14,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:14,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 02:31:14,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:14,662 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 02:31:14,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:31:14,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398723460] [2024-10-11 02:31:14,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398723460] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:31:14,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030024167] [2024-10-11 02:31:14,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:14,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:14,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:31:14,664 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:31:14,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-11 02:31:14,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:14,868 INFO L255 TraceCheckSpWp]: Trace formula consists of 1248 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 02:31:14,870 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:31:14,894 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-11 02:31:14,895 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:31:14,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030024167] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:31:14,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:31:14,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-10-11 02:31:14,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118246099] [2024-10-11 02:31:14,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:31:14,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 02:31:14,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:31:14,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 02:31:14,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:31:14,896 INFO L87 Difference]: Start difference. First operand 681 states and 1127 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-10-11 02:31:15,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:31:15,062 INFO L93 Difference]: Finished difference Result 1357 states and 2256 transitions. [2024-10-11 02:31:15,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 02:31:15,063 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 81 [2024-10-11 02:31:15,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:31:15,067 INFO L225 Difference]: With dead ends: 1357 [2024-10-11 02:31:15,067 INFO L226 Difference]: Without dead ends: 761 [2024-10-11 02:31:15,069 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-10-11 02:31:15,070 INFO L432 NwaCegarLoop]: 939 mSDtfsCounter, 169 mSDsluCounter, 1851 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 2790 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:31:15,070 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 2790 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:31:15,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2024-10-11 02:31:15,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 725. [2024-10-11 02:31:15,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 580 states have (on average 1.703448275862069) internal successors, (988), 600 states have internal predecessors, (988), 111 states have call successors, (111), 33 states have call predecessors, (111), 33 states have return successors, (110), 105 states have call predecessors, (110), 108 states have call successors, (110) [2024-10-11 02:31:15,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 1209 transitions. [2024-10-11 02:31:15,088 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 1209 transitions. Word has length 81 [2024-10-11 02:31:15,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:31:15,088 INFO L471 AbstractCegarLoop]: Abstraction has 725 states and 1209 transitions. [2024-10-11 02:31:15,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-10-11 02:31:15,088 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 1209 transitions. [2024-10-11 02:31:15,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-11 02:31:15,090 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:31:15,091 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:31:15,105 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-11 02:31:15,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-11 02:31:15,291 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:31:15,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:31:15,292 INFO L85 PathProgramCache]: Analyzing trace with hash -565474811, now seen corresponding path program 1 times [2024-10-11 02:31:15,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:31:15,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925828574] [2024-10-11 02:31:15,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:15,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:31:15,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:15,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:31:15,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:31:15,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:15,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:31:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 02:31:15,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 02:31:15,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-11 02:31:15,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-11 02:31:15,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,584 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 02:31:15,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:31:15,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925828574] [2024-10-11 02:31:15,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925828574] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:31:15,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1374973840] [2024-10-11 02:31:15,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:15,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:15,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:31:15,586 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:31:15,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-11 02:31:15,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,799 INFO L255 TraceCheckSpWp]: Trace formula consists of 1249 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 02:31:15,801 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:31:15,863 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-11 02:31:15,863 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:31:15,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1374973840] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:31:15,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:31:15,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2024-10-11 02:31:15,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898783493] [2024-10-11 02:31:15,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:31:15,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:31:15,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:31:15,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:31:15,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2024-10-11 02:31:15,866 INFO L87 Difference]: Start difference. First operand 725 states and 1209 transitions. Second operand has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-10-11 02:31:15,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:31:15,998 INFO L93 Difference]: Finished difference Result 1353 states and 2246 transitions. [2024-10-11 02:31:15,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 02:31:15,999 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 82 [2024-10-11 02:31:15,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:31:16,003 INFO L225 Difference]: With dead ends: 1353 [2024-10-11 02:31:16,004 INFO L226 Difference]: Without dead ends: 757 [2024-10-11 02:31:16,007 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2024-10-11 02:31:16,007 INFO L432 NwaCegarLoop]: 979 mSDtfsCounter, 89 mSDsluCounter, 4806 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 5785 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:31:16,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 5785 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:31:16,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2024-10-11 02:31:16,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 737. [2024-10-11 02:31:16,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 589 states have (on average 1.701188455008489) internal successors, (1002), 611 states have internal predecessors, (1002), 112 states have call successors, (112), 33 states have call predecessors, (112), 35 states have return successors, (113), 106 states have call predecessors, (113), 109 states have call successors, (113) [2024-10-11 02:31:16,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 1227 transitions. [2024-10-11 02:31:16,025 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 1227 transitions. Word has length 82 [2024-10-11 02:31:16,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:31:16,025 INFO L471 AbstractCegarLoop]: Abstraction has 737 states and 1227 transitions. [2024-10-11 02:31:16,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-10-11 02:31:16,025 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 1227 transitions. [2024-10-11 02:31:16,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-11 02:31:16,027 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:31:16,027 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:31:16,041 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-11 02:31:16,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:16,231 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:31:16,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:31:16,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1257418483, now seen corresponding path program 1 times [2024-10-11 02:31:16,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:31:16,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306577325] [2024-10-11 02:31:16,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:16,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:31:16,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:16,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:16,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:16,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:31:16,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:16,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:31:16,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:16,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:16,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:16,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:31:16,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:16,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-11 02:31:16,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:16,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:16,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:16,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-11 02:31:16,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:16,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 02:31:16,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:16,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 02:31:16,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:16,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 02:31:16,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:16,681 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-11 02:31:16,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:31:16,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306577325] [2024-10-11 02:31:16,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306577325] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:31:16,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441857182] [2024-10-11 02:31:16,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:16,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:16,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:31:16,683 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:31:16,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-11 02:31:16,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:16,899 INFO L255 TraceCheckSpWp]: Trace formula consists of 1486 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 02:31:16,902 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:31:16,955 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-11 02:31:16,955 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:31:16,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1441857182] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:31:16,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:31:16,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2024-10-11 02:31:16,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475060575] [2024-10-11 02:31:16,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:31:16,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:31:16,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:31:16,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:31:16,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2024-10-11 02:31:16,957 INFO L87 Difference]: Start difference. First operand 737 states and 1227 transitions. Second operand has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-11 02:31:17,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:31:17,082 INFO L93 Difference]: Finished difference Result 1361 states and 2259 transitions. [2024-10-11 02:31:17,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 02:31:17,083 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 95 [2024-10-11 02:31:17,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:31:17,087 INFO L225 Difference]: With dead ends: 1361 [2024-10-11 02:31:17,087 INFO L226 Difference]: Without dead ends: 765 [2024-10-11 02:31:17,089 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2024-10-11 02:31:17,090 INFO L432 NwaCegarLoop]: 979 mSDtfsCounter, 100 mSDsluCounter, 4794 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 5773 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:31:17,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 5773 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:31:17,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2024-10-11 02:31:17,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 737. [2024-10-11 02:31:17,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 589 states have (on average 1.701188455008489) internal successors, (1002), 611 states have internal predecessors, (1002), 112 states have call successors, (112), 33 states have call predecessors, (112), 35 states have return successors, (113), 106 states have call predecessors, (113), 109 states have call successors, (113) [2024-10-11 02:31:17,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 1227 transitions. [2024-10-11 02:31:17,107 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 1227 transitions. Word has length 95 [2024-10-11 02:31:17,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:31:17,107 INFO L471 AbstractCegarLoop]: Abstraction has 737 states and 1227 transitions. [2024-10-11 02:31:17,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-11 02:31:17,107 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 1227 transitions. [2024-10-11 02:31:17,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-11 02:31:17,108 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:31:17,109 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:31:17,122 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-10-11 02:31:17,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,14 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:17,309 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:31:17,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:31:17,311 INFO L85 PathProgramCache]: Analyzing trace with hash -766086258, now seen corresponding path program 1 times [2024-10-11 02:31:17,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:31:17,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230489897] [2024-10-11 02:31:17,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:17,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:31:17,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:17,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:17,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:17,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:31:17,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:17,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:31:17,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:17,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:17,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:17,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:31:17,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:17,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 02:31:17,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:17,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-11 02:31:17,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:17,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-11 02:31:17,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:17,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 02:31:17,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:17,478 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-11 02:31:17,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:31:17,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230489897] [2024-10-11 02:31:17,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230489897] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:31:17,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104105125] [2024-10-11 02:31:17,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:17,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:17,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:31:17,481 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:31:17,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-11 02:31:17,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:17,664 INFO L255 TraceCheckSpWp]: Trace formula consists of 1246 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 02:31:17,667 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:31:17,731 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-11 02:31:17,731 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:31:17,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104105125] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:31:17,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:31:17,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 11 [2024-10-11 02:31:17,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283001776] [2024-10-11 02:31:17,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:31:17,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 02:31:17,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:31:17,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 02:31:17,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-10-11 02:31:17,732 INFO L87 Difference]: Start difference. First operand 737 states and 1227 transitions. Second operand has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-10-11 02:31:17,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:31:17,886 INFO L93 Difference]: Finished difference Result 1363 states and 2261 transitions. [2024-10-11 02:31:17,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 02:31:17,886 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 83 [2024-10-11 02:31:17,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:31:17,891 INFO L225 Difference]: With dead ends: 1363 [2024-10-11 02:31:17,891 INFO L226 Difference]: Without dead ends: 767 [2024-10-11 02:31:17,893 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-10-11 02:31:17,893 INFO L432 NwaCegarLoop]: 969 mSDtfsCounter, 96 mSDsluCounter, 5721 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 6690 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:31:17,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 6690 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:31:17,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2024-10-11 02:31:17,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 737. [2024-10-11 02:31:17,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 589 states have (on average 1.701188455008489) internal successors, (1002), 611 states have internal predecessors, (1002), 112 states have call successors, (112), 33 states have call predecessors, (112), 35 states have return successors, (113), 106 states have call predecessors, (113), 109 states have call successors, (113) [2024-10-11 02:31:17,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 1227 transitions. [2024-10-11 02:31:17,939 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 1227 transitions. Word has length 83 [2024-10-11 02:31:17,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:31:17,940 INFO L471 AbstractCegarLoop]: Abstraction has 737 states and 1227 transitions. [2024-10-11 02:31:17,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-10-11 02:31:17,940 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 1227 transitions. [2024-10-11 02:31:17,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-11 02:31:17,942 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:31:17,942 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:31:17,956 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-10-11 02:31:18,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-11 02:31:18,142 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:31:18,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:31:18,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1144921734, now seen corresponding path program 1 times [2024-10-11 02:31:18,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:31:18,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569695111] [2024-10-11 02:31:18,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:18,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:31:18,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:18,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:18,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:18,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:31:18,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:18,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:31:18,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:18,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:18,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:18,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 02:31:18,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:18,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 02:31:18,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:18,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-11 02:31:18,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:18,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-11 02:31:18,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:18,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 02:31:18,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:18,336 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-10-11 02:31:18,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:31:18,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569695111] [2024-10-11 02:31:18,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569695111] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:31:18,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526739264] [2024-10-11 02:31:18,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:18,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:18,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:31:18,338 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:31:18,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-11 02:31:18,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:18,544 INFO L255 TraceCheckSpWp]: Trace formula consists of 1250 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 02:31:18,546 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:31:18,566 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-11 02:31:18,566 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:31:18,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1526739264] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:31:18,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:31:18,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-10-11 02:31:18,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764829995] [2024-10-11 02:31:18,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:31:18,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 02:31:18,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:31:18,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 02:31:18,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-11 02:31:18,567 INFO L87 Difference]: Start difference. First operand 737 states and 1227 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-10-11 02:31:18,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:31:18,634 INFO L93 Difference]: Finished difference Result 1405 states and 2340 transitions. [2024-10-11 02:31:18,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 02:31:18,634 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 83 [2024-10-11 02:31:18,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:31:18,639 INFO L225 Difference]: With dead ends: 1405 [2024-10-11 02:31:18,639 INFO L226 Difference]: Without dead ends: 737 [2024-10-11 02:31:18,641 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-11 02:31:18,643 INFO L432 NwaCegarLoop]: 980 mSDtfsCounter, 2 mSDsluCounter, 1951 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2931 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:31:18,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2931 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 02:31:18,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2024-10-11 02:31:18,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 737. [2024-10-11 02:31:18,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 589 states have (on average 1.696095076400679) internal successors, (999), 611 states have internal predecessors, (999), 112 states have call successors, (112), 33 states have call predecessors, (112), 35 states have return successors, (113), 106 states have call predecessors, (113), 109 states have call successors, (113) [2024-10-11 02:31:18,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 1224 transitions. [2024-10-11 02:31:18,660 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 1224 transitions. Word has length 83 [2024-10-11 02:31:18,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:31:18,661 INFO L471 AbstractCegarLoop]: Abstraction has 737 states and 1224 transitions. [2024-10-11 02:31:18,661 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, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-10-11 02:31:18,661 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 1224 transitions. [2024-10-11 02:31:18,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-11 02:31:18,662 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:31:18,662 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:31:18,676 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-10-11 02:31:18,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-11 02:31:18,863 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:31:18,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:31:18,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1395356632, now seen corresponding path program 1 times [2024-10-11 02:31:18,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:31:18,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363452771] [2024-10-11 02:31:18,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:18,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:31:18,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:18,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:18,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:19,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:31:19,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:19,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:31:19,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:19,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:19,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:19,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:31:19,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:19,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 02:31:19,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:19,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:19,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:19,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 02:31:19,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:19,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-11 02:31:19,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:19,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 02:31:19,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:19,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 02:31:19,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:19,323 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-11 02:31:19,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:31:19,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363452771] [2024-10-11 02:31:19,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363452771] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:31:19,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1393408457] [2024-10-11 02:31:19,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:19,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:19,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:31:19,325 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:31:19,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-11 02:31:19,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:19,579 INFO L255 TraceCheckSpWp]: Trace formula consists of 1483 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 02:31:19,582 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:31:19,666 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-11 02:31:19,666 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:31:19,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1393408457] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:31:19,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:31:19,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2024-10-11 02:31:19,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053774971] [2024-10-11 02:31:19,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:31:19,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 02:31:19,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:31:19,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 02:31:19,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2024-10-11 02:31:19,668 INFO L87 Difference]: Start difference. First operand 737 states and 1224 transitions. Second operand has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-11 02:31:19,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:31:19,818 INFO L93 Difference]: Finished difference Result 1355 states and 2245 transitions. [2024-10-11 02:31:19,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 02:31:19,819 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 96 [2024-10-11 02:31:19,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:31:19,822 INFO L225 Difference]: With dead ends: 1355 [2024-10-11 02:31:19,822 INFO L226 Difference]: Without dead ends: 759 [2024-10-11 02:31:19,824 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2024-10-11 02:31:19,824 INFO L432 NwaCegarLoop]: 966 mSDtfsCounter, 106 mSDsluCounter, 5694 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 6660 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:31:19,825 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 6660 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:31:19,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2024-10-11 02:31:19,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 737. [2024-10-11 02:31:19,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 589 states have (on average 1.696095076400679) internal successors, (999), 611 states have internal predecessors, (999), 112 states have call successors, (112), 33 states have call predecessors, (112), 35 states have return successors, (113), 106 states have call predecessors, (113), 109 states have call successors, (113) [2024-10-11 02:31:19,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 1224 transitions. [2024-10-11 02:31:19,843 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 1224 transitions. Word has length 96 [2024-10-11 02:31:19,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:31:19,843 INFO L471 AbstractCegarLoop]: Abstraction has 737 states and 1224 transitions. [2024-10-11 02:31:19,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-11 02:31:19,843 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 1224 transitions. [2024-10-11 02:31:19,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-11 02:31:19,844 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:31:19,844 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:31:19,861 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-10-11 02:31:20,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-11 02:31:20,045 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:31:20,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:31:20,046 INFO L85 PathProgramCache]: Analyzing trace with hash -3714514, now seen corresponding path program 1 times [2024-10-11 02:31:20,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:31:20,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157152408] [2024-10-11 02:31:20,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:20,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:31:20,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:20,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:20,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:20,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:31:20,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:20,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:31:20,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:20,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:20,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:20,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:31:20,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:20,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 02:31:20,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:20,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:20,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:20,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 02:31:20,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:20,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 02:31:20,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:20,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-11 02:31:20,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:20,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 02:31:20,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:20,379 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-10-11 02:31:20,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:31:20,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157152408] [2024-10-11 02:31:20,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157152408] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:31:20,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459416950] [2024-10-11 02:31:20,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:20,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:20,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:31:20,381 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:31:20,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-10-11 02:31:20,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:20,601 INFO L255 TraceCheckSpWp]: Trace formula consists of 1484 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 02:31:20,603 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:31:20,757 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-10-11 02:31:20,757 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:31:20,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1459416950] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:31:20,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:31:20,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2024-10-11 02:31:20,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30485094] [2024-10-11 02:31:20,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:31:20,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 02:31:20,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:31:20,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 02:31:20,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-10-11 02:31:20,759 INFO L87 Difference]: Start difference. First operand 737 states and 1224 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-11 02:31:23,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:31:23,412 INFO L93 Difference]: Finished difference Result 2564 states and 4287 transitions. [2024-10-11 02:31:23,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 02:31:23,412 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 97 [2024-10-11 02:31:23,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:31:23,422 INFO L225 Difference]: With dead ends: 2564 [2024-10-11 02:31:23,422 INFO L226 Difference]: Without dead ends: 1972 [2024-10-11 02:31:23,424 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-10-11 02:31:23,424 INFO L432 NwaCegarLoop]: 576 mSDtfsCounter, 4552 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 3802 mSolverCounterSat, 824 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4762 SdHoareTripleChecker+Valid, 1335 SdHoareTripleChecker+Invalid, 4626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 824 IncrementalHoareTripleChecker+Valid, 3802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-11 02:31:23,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4762 Valid, 1335 Invalid, 4626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [824 Valid, 3802 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-11 02:31:23,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1972 states. [2024-10-11 02:31:23,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1972 to 1805. [2024-10-11 02:31:23,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1805 states, 1433 states have (on average 1.6838799720865318) internal successors, (2413), 1471 states have internal predecessors, (2413), 293 states have call successors, (293), 75 states have call predecessors, (293), 78 states have return successors, (314), 273 states have call predecessors, (314), 289 states have call successors, (314) [2024-10-11 02:31:23,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1805 states to 1805 states and 3020 transitions. [2024-10-11 02:31:23,478 INFO L78 Accepts]: Start accepts. Automaton has 1805 states and 3020 transitions. Word has length 97 [2024-10-11 02:31:23,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:31:23,478 INFO L471 AbstractCegarLoop]: Abstraction has 1805 states and 3020 transitions. [2024-10-11 02:31:23,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-11 02:31:23,479 INFO L276 IsEmpty]: Start isEmpty. Operand 1805 states and 3020 transitions. [2024-10-11 02:31:23,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-11 02:31:23,483 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:31:23,483 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:31:23,497 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-10-11 02:31:23,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-11 02:31:23,684 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:31:23,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:31:23,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1622822744, now seen corresponding path program 1 times [2024-10-11 02:31:23,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:31:23,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797613568] [2024-10-11 02:31:23,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:23,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:31:23,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:23,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:23,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:23,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:31:23,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:23,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:31:23,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:23,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:23,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:23,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:31:23,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:23,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 02:31:23,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:24,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 02:31:24,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:24,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:24,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:24,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:24,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:24,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-11 02:31:24,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:24,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 02:31:24,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:24,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:24,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:24,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:24,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:24,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-11 02:31:24,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:24,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-11 02:31:24,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:24,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 02:31:24,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:24,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-11 02:31:24,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:24,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-11 02:31:24,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:24,038 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-11 02:31:24,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:31:24,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797613568] [2024-10-11 02:31:24,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797613568] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:31:24,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464792878] [2024-10-11 02:31:24,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:24,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:24,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:31:24,040 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:31:24,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-10-11 02:31:24,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:24,263 INFO L255 TraceCheckSpWp]: Trace formula consists of 1604 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 02:31:24,269 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:31:24,352 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-11 02:31:24,352 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:31:24,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1464792878] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:31:24,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:31:24,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-10-11 02:31:24,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618059359] [2024-10-11 02:31:24,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:31:24,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 02:31:24,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:31:24,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 02:31:24,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-10-11 02:31:24,354 INFO L87 Difference]: Start difference. First operand 1805 states and 3020 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-11 02:31:24,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:31:24,817 INFO L93 Difference]: Finished difference Result 3489 states and 5933 transitions. [2024-10-11 02:31:24,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 02:31:24,818 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 136 [2024-10-11 02:31:24,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:31:24,826 INFO L225 Difference]: With dead ends: 3489 [2024-10-11 02:31:24,826 INFO L226 Difference]: Without dead ends: 1829 [2024-10-11 02:31:24,832 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-10-11 02:31:24,832 INFO L432 NwaCegarLoop]: 970 mSDtfsCounter, 951 mSDsluCounter, 1514 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 955 SdHoareTripleChecker+Valid, 2484 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 02:31:24,833 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [955 Valid, 2484 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 02:31:24,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1829 states. [2024-10-11 02:31:24,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1829 to 1829. [2024-10-11 02:31:24,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1829 states, 1454 states have (on average 1.6843191196698761) internal successors, (2449), 1492 states have internal predecessors, (2449), 293 states have call successors, (293), 78 states have call predecessors, (293), 81 states have return successors, (317), 273 states have call predecessors, (317), 289 states have call successors, (317) [2024-10-11 02:31:24,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1829 states to 1829 states and 3059 transitions. [2024-10-11 02:31:24,888 INFO L78 Accepts]: Start accepts. Automaton has 1829 states and 3059 transitions. Word has length 136 [2024-10-11 02:31:24,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:31:24,888 INFO L471 AbstractCegarLoop]: Abstraction has 1829 states and 3059 transitions. [2024-10-11 02:31:24,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-11 02:31:24,889 INFO L276 IsEmpty]: Start isEmpty. Operand 1829 states and 3059 transitions. [2024-10-11 02:31:24,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-10-11 02:31:24,893 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:31:24,893 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:31:24,907 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-10-11 02:31:25,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-11 02:31:25,094 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:31:25,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:31:25,094 INFO L85 PathProgramCache]: Analyzing trace with hash 809129700, now seen corresponding path program 1 times [2024-10-11 02:31:25,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:31:25,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515709925] [2024-10-11 02:31:25,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:25,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:31:25,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:25,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:25,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:25,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:31:25,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:25,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:31:25,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:25,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:25,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:25,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:31:25,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:25,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 02:31:25,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:25,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:25,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:25,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 02:31:25,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:25,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:25,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:25,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:25,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:25,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:31:25,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:25,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:31:25,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:25,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:25,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:25,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:25,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:25,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:31:25,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:25,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 02:31:25,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:25,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-11 02:31:25,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:25,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-11 02:31:25,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:25,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:25,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:25,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:25,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:25,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:31:25,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:25,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:31:25,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:25,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:25,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:25,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:25,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:25,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:31:25,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:25,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 02:31:25,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:25,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-10-11 02:31:25,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:25,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-10-11 02:31:25,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:25,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-10-11 02:31:25,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:25,845 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 5 proven. 20 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-10-11 02:31:25,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:31:25,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515709925] [2024-10-11 02:31:25,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515709925] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:31:25,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314472683] [2024-10-11 02:31:25,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:25,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:25,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:31:25,848 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:31:25,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-10-11 02:31:26,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:26,175 INFO L255 TraceCheckSpWp]: Trace formula consists of 2200 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 02:31:26,179 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:31:26,263 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-10-11 02:31:26,264 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:31:26,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314472683] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:31:26,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:31:26,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 16 [2024-10-11 02:31:26,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953040438] [2024-10-11 02:31:26,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:31:26,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 02:31:26,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:31:26,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 02:31:26,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-10-11 02:31:26,265 INFO L87 Difference]: Start difference. First operand 1829 states and 3059 transitions. Second operand has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 5 states have call successors, (29), 4 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2024-10-11 02:31:28,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:31:28,265 INFO L93 Difference]: Finished difference Result 5477 states and 9233 transitions. [2024-10-11 02:31:28,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 02:31:28,266 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 5 states have call successors, (29), 4 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) Word has length 201 [2024-10-11 02:31:28,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:31:28,285 INFO L225 Difference]: With dead ends: 5477 [2024-10-11 02:31:28,285 INFO L226 Difference]: Without dead ends: 3793 [2024-10-11 02:31:28,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=65, Invalid=355, Unknown=0, NotChecked=0, Total=420 [2024-10-11 02:31:28,295 INFO L432 NwaCegarLoop]: 382 mSDtfsCounter, 2031 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 4107 mSolverCounterSat, 351 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2151 SdHoareTripleChecker+Valid, 1187 SdHoareTripleChecker+Invalid, 4458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 351 IncrementalHoareTripleChecker+Valid, 4107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-11 02:31:28,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2151 Valid, 1187 Invalid, 4458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [351 Valid, 4107 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-11 02:31:28,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3793 states. [2024-10-11 02:31:28,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3793 to 3155. [2024-10-11 02:31:28,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3155 states, 2470 states have (on average 1.6526315789473685) internal successors, (4082), 2523 states have internal predecessors, (4082), 534 states have call successors, (534), 134 states have call predecessors, (534), 150 states have return successors, (650), 508 states have call predecessors, (650), 528 states have call successors, (650) [2024-10-11 02:31:28,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3155 states to 3155 states and 5266 transitions. [2024-10-11 02:31:28,424 INFO L78 Accepts]: Start accepts. Automaton has 3155 states and 5266 transitions. Word has length 201 [2024-10-11 02:31:28,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:31:28,425 INFO L471 AbstractCegarLoop]: Abstraction has 3155 states and 5266 transitions. [2024-10-11 02:31:28,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 5 states have call successors, (29), 4 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2024-10-11 02:31:28,425 INFO L276 IsEmpty]: Start isEmpty. Operand 3155 states and 5266 transitions. [2024-10-11 02:31:28,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-10-11 02:31:28,430 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:31:28,431 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:31:28,446 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-10-11 02:31:28,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:28,631 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:31:28,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:31:28,632 INFO L85 PathProgramCache]: Analyzing trace with hash -2036238484, now seen corresponding path program 1 times [2024-10-11 02:31:28,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:31:28,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846778000] [2024-10-11 02:31:28,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:28,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:31:28,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:28,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:28,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:28,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:31:28,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:28,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:31:28,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:28,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:28,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:28,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:31:28,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:28,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 02:31:28,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:28,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 02:31:28,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:28,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:28,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:28,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:28,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:28,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:31:28,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:28,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:31:28,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:28,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:28,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:28,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:28,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:28,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:31:28,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:29,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 02:31:29,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:29,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-11 02:31:29,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:29,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-11 02:31:29,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:29,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-11 02:31:29,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:29,007 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-11 02:31:29,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:31:29,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846778000] [2024-10-11 02:31:29,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846778000] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:31:29,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697807712] [2024-10-11 02:31:29,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:29,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:29,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:31:29,009 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:31:29,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-10-11 02:31:29,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:29,244 INFO L255 TraceCheckSpWp]: Trace formula consists of 1603 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 02:31:29,247 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:31:29,330 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-11 02:31:29,330 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:31:29,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [697807712] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:31:29,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:31:29,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-10-11 02:31:29,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693704322] [2024-10-11 02:31:29,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:31:29,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 02:31:29,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:31:29,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 02:31:29,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-10-11 02:31:29,333 INFO L87 Difference]: Start difference. First operand 3155 states and 5266 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-11 02:31:29,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:31:29,844 INFO L93 Difference]: Finished difference Result 6213 states and 10611 transitions. [2024-10-11 02:31:29,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 02:31:29,845 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 138 [2024-10-11 02:31:29,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:31:29,866 INFO L225 Difference]: With dead ends: 6213 [2024-10-11 02:31:29,866 INFO L226 Difference]: Without dead ends: 3203 [2024-10-11 02:31:29,885 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-10-11 02:31:29,885 INFO L432 NwaCegarLoop]: 967 mSDtfsCounter, 945 mSDsluCounter, 1514 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 952 SdHoareTripleChecker+Valid, 2481 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 02:31:29,886 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [952 Valid, 2481 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 02:31:29,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3203 states. [2024-10-11 02:31:29,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3203 to 3203. [2024-10-11 02:31:29,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3203 states, 2512 states have (on average 1.6536624203821657) internal successors, (4154), 2565 states have internal predecessors, (4154), 534 states have call successors, (534), 140 states have call predecessors, (534), 156 states have return successors, (656), 508 states have call predecessors, (656), 528 states have call successors, (656) [2024-10-11 02:31:29,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3203 states to 3203 states and 5344 transitions. [2024-10-11 02:31:30,003 INFO L78 Accepts]: Start accepts. Automaton has 3203 states and 5344 transitions. Word has length 138 [2024-10-11 02:31:30,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:31:30,003 INFO L471 AbstractCegarLoop]: Abstraction has 3203 states and 5344 transitions. [2024-10-11 02:31:30,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-11 02:31:30,003 INFO L276 IsEmpty]: Start isEmpty. Operand 3203 states and 5344 transitions. [2024-10-11 02:31:30,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-11 02:31:30,008 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:31:30,008 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:31:30,023 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-10-11 02:31:30,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:30,209 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:31:30,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:31:30,209 INFO L85 PathProgramCache]: Analyzing trace with hash 738261600, now seen corresponding path program 1 times [2024-10-11 02:31:30,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:31:30,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135657416] [2024-10-11 02:31:30,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:30,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:31:30,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:30,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:30,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:30,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:31:30,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:30,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:31:30,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:30,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:30,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:30,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:31:30,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:30,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 02:31:30,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:30,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 02:31:30,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:30,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:30,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:30,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:30,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:30,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:31:30,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:30,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 02:31:30,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:30,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:30,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:30,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:30,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:30,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:31:30,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:30,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 02:31:30,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:30,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 02:31:30,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:30,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-11 02:31:30,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:30,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-11 02:31:30,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:30,633 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-10-11 02:31:30,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:31:30,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135657416] [2024-10-11 02:31:30,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135657416] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:31:30,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [659404198] [2024-10-11 02:31:30,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:30,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:30,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:31:30,635 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:31:30,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-10-11 02:31:30,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:30,853 INFO L255 TraceCheckSpWp]: Trace formula consists of 1605 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 02:31:30,856 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:31:30,917 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-11 02:31:30,918 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:31:30,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [659404198] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:31:30,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:31:30,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 14 [2024-10-11 02:31:30,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088088579] [2024-10-11 02:31:30,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:31:30,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 02:31:30,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:31:30,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 02:31:30,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2024-10-11 02:31:30,919 INFO L87 Difference]: Start difference. First operand 3203 states and 5344 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-11 02:31:31,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:31:31,040 INFO L93 Difference]: Finished difference Result 5155 states and 8570 transitions. [2024-10-11 02:31:31,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 02:31:31,040 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2024-10-11 02:31:31,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:31:31,055 INFO L225 Difference]: With dead ends: 5155 [2024-10-11 02:31:31,055 INFO L226 Difference]: Without dead ends: 3020 [2024-10-11 02:31:31,062 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2024-10-11 02:31:31,062 INFO L432 NwaCegarLoop]: 1358 mSDtfsCounter, 956 mSDsluCounter, 1927 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 956 SdHoareTripleChecker+Valid, 3285 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:31:31,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [956 Valid, 3285 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 02:31:31,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3020 states. [2024-10-11 02:31:31,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3020 to 3001. [2024-10-11 02:31:31,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3001 states, 2364 states have (on average 1.654399323181049) internal successors, (3911), 2409 states have internal predecessors, (3911), 491 states have call successors, (491), 130 states have call predecessors, (491), 145 states have return successors, (601), 472 states have call predecessors, (601), 485 states have call successors, (601) [2024-10-11 02:31:31,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3001 states to 3001 states and 5003 transitions. [2024-10-11 02:31:31,152 INFO L78 Accepts]: Start accepts. Automaton has 3001 states and 5003 transitions. Word has length 139 [2024-10-11 02:31:31,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:31:31,152 INFO L471 AbstractCegarLoop]: Abstraction has 3001 states and 5003 transitions. [2024-10-11 02:31:31,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-11 02:31:31,153 INFO L276 IsEmpty]: Start isEmpty. Operand 3001 states and 5003 transitions. [2024-10-11 02:31:31,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-10-11 02:31:31,157 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:31:31,157 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:31:31,172 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-10-11 02:31:31,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-10-11 02:31:31,358 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:31:31,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:31:31,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1293838300, now seen corresponding path program 1 times [2024-10-11 02:31:31,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:31:31,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676230342] [2024-10-11 02:31:31,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:31,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:31:31,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:31,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:31,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:31,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:31:31,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:31,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:31:31,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:31,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:31,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:31,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:31:31,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:31,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 02:31:31,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:31,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:31,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:32,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:31:32,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:32,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:32,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:32,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:32,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:32,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:31:32,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:32,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 02:31:32,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:32,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:32,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:32,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:32,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:32,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:31:32,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:32,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 02:31:32,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:32,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-11 02:31:32,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:32,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-11 02:31:32,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:32,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:32,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:32,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:32,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:32,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:31:32,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:32,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 02:31:32,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:32,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:32,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:32,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:32,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:32,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:31:32,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:32,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 02:31:32,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:32,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-10-11 02:31:32,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:32,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-10-11 02:31:32,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:32,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-10-11 02:31:32,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:32,073 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2024-10-11 02:31:32,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:31:32,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676230342] [2024-10-11 02:31:32,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676230342] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:31:32,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839385661] [2024-10-11 02:31:32,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:32,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:32,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:31:32,075 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:31:32,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-10-11 02:31:32,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:32,351 INFO L255 TraceCheckSpWp]: Trace formula consists of 2198 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 02:31:32,355 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:31:32,440 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-10-11 02:31:32,440 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:31:32,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [839385661] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:31:32,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:31:32,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [13] total 16 [2024-10-11 02:31:32,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288496034] [2024-10-11 02:31:32,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:31:32,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 02:31:32,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:31:32,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 02:31:32,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-10-11 02:31:32,442 INFO L87 Difference]: Start difference. First operand 3001 states and 5003 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-10-11 02:31:32,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:31:32,892 INFO L93 Difference]: Finished difference Result 5905 states and 10037 transitions. [2024-10-11 02:31:32,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 02:31:32,893 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 207 [2024-10-11 02:31:32,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:31:32,908 INFO L225 Difference]: With dead ends: 5905 [2024-10-11 02:31:32,908 INFO L226 Difference]: Without dead ends: 3049 [2024-10-11 02:31:32,919 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2024-10-11 02:31:32,920 INFO L432 NwaCegarLoop]: 964 mSDtfsCounter, 944 mSDsluCounter, 1514 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 954 SdHoareTripleChecker+Valid, 2478 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 02:31:32,921 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [954 Valid, 2478 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 02:31:32,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3049 states. [2024-10-11 02:31:33,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3049 to 3049. [2024-10-11 02:31:33,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3049 states, 2406 states have (on average 1.6554447215295096) internal successors, (3983), 2451 states have internal predecessors, (3983), 491 states have call successors, (491), 136 states have call predecessors, (491), 151 states have return successors, (606), 472 states have call predecessors, (606), 485 states have call successors, (606) [2024-10-11 02:31:33,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3049 states to 3049 states and 5080 transitions. [2024-10-11 02:31:33,043 INFO L78 Accepts]: Start accepts. Automaton has 3049 states and 5080 transitions. Word has length 207 [2024-10-11 02:31:33,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:31:33,043 INFO L471 AbstractCegarLoop]: Abstraction has 3049 states and 5080 transitions. [2024-10-11 02:31:33,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-10-11 02:31:33,043 INFO L276 IsEmpty]: Start isEmpty. Operand 3049 states and 5080 transitions. [2024-10-11 02:31:33,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-11 02:31:33,047 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:31:33,047 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:31:33,061 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-10-11 02:31:33,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:33,248 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:31:33,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:31:33,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1769660388, now seen corresponding path program 1 times [2024-10-11 02:31:33,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:31:33,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802746950] [2024-10-11 02:31:33,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:33,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:31:33,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:33,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:33,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:33,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:31:33,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:33,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:31:33,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:33,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:33,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:33,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:31:33,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:33,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 02:31:33,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:33,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 02:31:33,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:33,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:33,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:33,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:33,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:33,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-11 02:31:33,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:33,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:31:33,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:33,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:33,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:33,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:33,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:33,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-11 02:31:33,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:33,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-11 02:31:33,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:33,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 02:31:33,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:33,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-11 02:31:33,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:33,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-11 02:31:33,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:33,663 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-11 02:31:33,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:31:33,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802746950] [2024-10-11 02:31:33,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802746950] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:31:33,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1267835342] [2024-10-11 02:31:33,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:33,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:33,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:31:33,665 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:31:33,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-10-11 02:31:33,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:33,889 INFO L255 TraceCheckSpWp]: Trace formula consists of 1607 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 02:31:33,892 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:31:33,971 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-11 02:31:33,972 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:31:33,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1267835342] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:31:33,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:31:33,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 15 [2024-10-11 02:31:33,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617174433] [2024-10-11 02:31:33,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:31:33,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 02:31:33,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:31:33,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 02:31:33,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2024-10-11 02:31:33,973 INFO L87 Difference]: Start difference. First operand 3049 states and 5080 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-11 02:31:34,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:31:34,402 INFO L93 Difference]: Finished difference Result 6001 states and 10173 transitions. [2024-10-11 02:31:34,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 02:31:34,403 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 142 [2024-10-11 02:31:34,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:31:34,421 INFO L225 Difference]: With dead ends: 6001 [2024-10-11 02:31:34,422 INFO L226 Difference]: Without dead ends: 3097 [2024-10-11 02:31:34,466 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-10-11 02:31:34,466 INFO L432 NwaCegarLoop]: 961 mSDtfsCounter, 940 mSDsluCounter, 1514 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 953 SdHoareTripleChecker+Valid, 2475 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 02:31:34,467 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [953 Valid, 2475 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 02:31:34,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3097 states. [2024-10-11 02:31:34,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3097 to 3097. [2024-10-11 02:31:34,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3097 states, 2448 states have (on average 1.6564542483660132) internal successors, (4055), 2493 states have internal predecessors, (4055), 491 states have call successors, (491), 142 states have call predecessors, (491), 157 states have return successors, (611), 472 states have call predecessors, (611), 485 states have call successors, (611) [2024-10-11 02:31:34,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3097 states to 3097 states and 5157 transitions. [2024-10-11 02:31:34,549 INFO L78 Accepts]: Start accepts. Automaton has 3097 states and 5157 transitions. Word has length 142 [2024-10-11 02:31:34,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:31:34,550 INFO L471 AbstractCegarLoop]: Abstraction has 3097 states and 5157 transitions. [2024-10-11 02:31:34,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-11 02:31:34,550 INFO L276 IsEmpty]: Start isEmpty. Operand 3097 states and 5157 transitions. [2024-10-11 02:31:34,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-11 02:31:34,555 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:31:34,555 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:31:34,573 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-10-11 02:31:34,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,24 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:34,756 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:31:34,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:31:34,756 INFO L85 PathProgramCache]: Analyzing trace with hash 70301482, now seen corresponding path program 1 times [2024-10-11 02:31:34,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:31:34,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81991999] [2024-10-11 02:31:34,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:34,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:31:34,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:34,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:34,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:34,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:31:34,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:34,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:31:34,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:34,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:34,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:34,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:31:34,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:34,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 02:31:34,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:35,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 02:31:35,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:35,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:35,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:35,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:35,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:35,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-11 02:31:35,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:35,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 02:31:35,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:35,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:35,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:35,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:35,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:35,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-11 02:31:35,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:35,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 02:31:35,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:35,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-11 02:31:35,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:35,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 02:31:35,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:35,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-11 02:31:35,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:35,082 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-10-11 02:31:35,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:31:35,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81991999] [2024-10-11 02:31:35,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81991999] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:31:35,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [431299188] [2024-10-11 02:31:35,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:35,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:35,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:31:35,084 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:31:35,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-10-11 02:31:35,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:35,321 INFO L255 TraceCheckSpWp]: Trace formula consists of 1609 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 02:31:35,324 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:31:35,332 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-11 02:31:35,332 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:31:35,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [431299188] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:31:35,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:31:35,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 7 [2024-10-11 02:31:35,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449492702] [2024-10-11 02:31:35,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:31:35,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 02:31:35,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:31:35,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 02:31:35,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:31:35,333 INFO L87 Difference]: Start difference. First operand 3097 states and 5157 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-11 02:31:35,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:31:35,459 INFO L93 Difference]: Finished difference Result 6176 states and 10299 transitions. [2024-10-11 02:31:35,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 02:31:35,460 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 144 [2024-10-11 02:31:35,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:31:35,478 INFO L225 Difference]: With dead ends: 6176 [2024-10-11 02:31:35,478 INFO L226 Difference]: Without dead ends: 3063 [2024-10-11 02:31:35,488 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-11 02:31:35,489 INFO L432 NwaCegarLoop]: 977 mSDtfsCounter, 7 mSDsluCounter, 1946 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2923 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:31:35,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2923 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 02:31:35,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3063 states. [2024-10-11 02:31:35,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3063 to 3063. [2024-10-11 02:31:35,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3063 states, 2417 states have (on average 1.6495655771617708) internal successors, (3987), 2460 states have internal predecessors, (3987), 490 states have call successors, (490), 142 states have call predecessors, (490), 155 states have return successors, (608), 471 states have call predecessors, (608), 484 states have call successors, (608) [2024-10-11 02:31:35,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3063 states to 3063 states and 5085 transitions. [2024-10-11 02:31:35,613 INFO L78 Accepts]: Start accepts. Automaton has 3063 states and 5085 transitions. Word has length 144 [2024-10-11 02:31:35,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:31:35,613 INFO L471 AbstractCegarLoop]: Abstraction has 3063 states and 5085 transitions. [2024-10-11 02:31:35,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-11 02:31:35,613 INFO L276 IsEmpty]: Start isEmpty. Operand 3063 states and 5085 transitions. [2024-10-11 02:31:35,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-10-11 02:31:35,617 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:31:35,618 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:31:35,632 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-10-11 02:31:35,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-10-11 02:31:35,819 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:31:35,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:31:35,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1336782877, now seen corresponding path program 1 times [2024-10-11 02:31:35,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:31:35,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30689003] [2024-10-11 02:31:35,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:35,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:31:35,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:35,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:35,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:35,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:31:36,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:36,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 02:31:36,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:36,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:36,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:36,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:31:36,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:36,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 02:31:36,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:36,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:36,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:36,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:31:36,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:36,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:36,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:36,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:36,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:36,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-11 02:31:36,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:36,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 02:31:36,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:36,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:36,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:36,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:36,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:36,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-11 02:31:36,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:36,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 02:31:36,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:36,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-11 02:31:36,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:36,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-11 02:31:36,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:36,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:36,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:36,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:36,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:36,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-11 02:31:36,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:36,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 02:31:36,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:36,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:36,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:36,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:36,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:36,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-11 02:31:36,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:36,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 02:31:36,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:36,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-10-11 02:31:36,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:36,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-10-11 02:31:36,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:36,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-10-11 02:31:36,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:36,413 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2024-10-11 02:31:36,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:31:36,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30689003] [2024-10-11 02:31:36,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30689003] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:31:36,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533242344] [2024-10-11 02:31:36,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:36,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:36,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:31:36,415 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:31:36,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-10-11 02:31:36,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:36,694 INFO L255 TraceCheckSpWp]: Trace formula consists of 2204 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 02:31:36,698 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:31:36,773 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 31 proven. 5 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2024-10-11 02:31:36,773 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 02:31:37,104 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 25 proven. 5 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-10-11 02:31:37,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533242344] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 02:31:37,104 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 02:31:37,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 6] total 16 [2024-10-11 02:31:37,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247557635] [2024-10-11 02:31:37,105 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 02:31:37,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-11 02:31:37,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:31:37,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-11 02:31:37,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2024-10-11 02:31:37,106 INFO L87 Difference]: Start difference. First operand 3063 states and 5085 transitions. Second operand has 16 states, 15 states have (on average 10.0) internal successors, (150), 11 states have internal predecessors, (150), 6 states have call successors, (44), 9 states have call predecessors, (44), 5 states have return successors, (40), 7 states have call predecessors, (40), 6 states have call successors, (40) [2024-10-11 02:31:56,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:31:56,970 INFO L93 Difference]: Finished difference Result 19202 states and 34866 transitions. [2024-10-11 02:31:56,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-10-11 02:31:56,971 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 10.0) internal successors, (150), 11 states have internal predecessors, (150), 6 states have call successors, (44), 9 states have call predecessors, (44), 5 states have return successors, (40), 7 states have call predecessors, (40), 6 states have call successors, (40) Word has length 216 [2024-10-11 02:31:56,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:31:57,049 INFO L225 Difference]: With dead ends: 19202 [2024-10-11 02:31:57,050 INFO L226 Difference]: Without dead ends: 16157 [2024-10-11 02:31:57,078 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 567 GetRequests, 507 SyntacticMatches, 5 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 930 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=570, Invalid=2622, Unknown=0, NotChecked=0, Total=3192 [2024-10-11 02:31:57,079 INFO L432 NwaCegarLoop]: 739 mSDtfsCounter, 5140 mSDsluCounter, 5728 mSDsCounter, 0 mSdLazyCounter, 17199 mSolverCounterSat, 1705 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5263 SdHoareTripleChecker+Valid, 6467 SdHoareTripleChecker+Invalid, 18904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1705 IncrementalHoareTripleChecker+Valid, 17199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2024-10-11 02:31:57,079 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5263 Valid, 6467 Invalid, 18904 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1705 Valid, 17199 Invalid, 0 Unknown, 0 Unchecked, 13.4s Time] [2024-10-11 02:31:57,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16157 states. [2024-10-11 02:31:58,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16157 to 10241. [2024-10-11 02:31:59,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10241 states, 7942 states have (on average 1.5961974313774867) internal successors, (12677), 8106 states have internal predecessors, (12677), 1675 states have call successors, (1675), 529 states have call predecessors, (1675), 623 states have return successors, (2910), 1638 states have call predecessors, (2910), 1661 states have call successors, (2910) [2024-10-11 02:31:59,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10241 states to 10241 states and 17262 transitions. [2024-10-11 02:31:59,057 INFO L78 Accepts]: Start accepts. Automaton has 10241 states and 17262 transitions. Word has length 216 [2024-10-11 02:31:59,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:31:59,057 INFO L471 AbstractCegarLoop]: Abstraction has 10241 states and 17262 transitions. [2024-10-11 02:31:59,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 10.0) internal successors, (150), 11 states have internal predecessors, (150), 6 states have call successors, (44), 9 states have call predecessors, (44), 5 states have return successors, (40), 7 states have call predecessors, (40), 6 states have call successors, (40) [2024-10-11 02:31:59,058 INFO L276 IsEmpty]: Start isEmpty. Operand 10241 states and 17262 transitions. [2024-10-11 02:31:59,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-10-11 02:31:59,064 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:31:59,064 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:31:59,079 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-10-11 02:31:59,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-10-11 02:31:59,266 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:31:59,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:31:59,266 INFO L85 PathProgramCache]: Analyzing trace with hash 893181964, now seen corresponding path program 1 times [2024-10-11 02:31:59,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:31:59,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536519436] [2024-10-11 02:31:59,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:59,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:31:59,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:59,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:59,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:59,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:31:59,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:59,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 02:31:59,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:59,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:59,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:59,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:31:59,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:59,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 02:31:59,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:59,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 02:31:59,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:59,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:59,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:59,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:59,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:59,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-11 02:31:59,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:59,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 02:31:59,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:59,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:59,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:59,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:59,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:59,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-11 02:31:59,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:59,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 02:31:59,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:59,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-11 02:31:59,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:59,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-11 02:31:59,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:59,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 02:31:59,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:59,814 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-10-11 02:31:59,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:31:59,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536519436] [2024-10-11 02:31:59,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536519436] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:31:59,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:31:59,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-11 02:31:59,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339513446] [2024-10-11 02:31:59,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:31:59,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 02:31:59,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:31:59,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 02:31:59,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-11 02:31:59,816 INFO L87 Difference]: Start difference. First operand 10241 states and 17262 transitions. Second operand has 10 states, 9 states have (on average 9.666666666666666) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-11 02:32:07,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:32:07,006 INFO L93 Difference]: Finished difference Result 23195 states and 39734 transitions. [2024-10-11 02:32:07,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 02:32:07,007 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.666666666666666) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 146 [2024-10-11 02:32:07,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:32:07,067 INFO L225 Difference]: With dead ends: 23195 [2024-10-11 02:32:07,067 INFO L226 Difference]: Without dead ends: 13067 [2024-10-11 02:32:07,202 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-10-11 02:32:07,202 INFO L432 NwaCegarLoop]: 419 mSDtfsCounter, 2203 mSDsluCounter, 2270 mSDsCounter, 0 mSdLazyCounter, 5894 mSolverCounterSat, 566 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2305 SdHoareTripleChecker+Valid, 2689 SdHoareTripleChecker+Invalid, 6460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 566 IncrementalHoareTripleChecker+Valid, 5894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-10-11 02:32:07,204 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2305 Valid, 2689 Invalid, 6460 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [566 Valid, 5894 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-10-11 02:32:07,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13067 states. [2024-10-11 02:32:08,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13067 to 10293. [2024-10-11 02:32:08,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10293 states, 7994 states have (on average 1.5938203652739555) internal successors, (12741), 8158 states have internal predecessors, (12741), 1675 states have call successors, (1675), 529 states have call predecessors, (1675), 623 states have return successors, (2910), 1638 states have call predecessors, (2910), 1661 states have call successors, (2910) [2024-10-11 02:32:08,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10293 states to 10293 states and 17326 transitions. [2024-10-11 02:32:08,938 INFO L78 Accepts]: Start accepts. Automaton has 10293 states and 17326 transitions. Word has length 146 [2024-10-11 02:32:08,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:32:08,939 INFO L471 AbstractCegarLoop]: Abstraction has 10293 states and 17326 transitions. [2024-10-11 02:32:08,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.666666666666666) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-11 02:32:08,939 INFO L276 IsEmpty]: Start isEmpty. Operand 10293 states and 17326 transitions. [2024-10-11 02:32:08,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-10-11 02:32:08,947 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:32:08,947 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:32:08,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-11 02:32:08,948 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:32:08,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:32:08,948 INFO L85 PathProgramCache]: Analyzing trace with hash -901660, now seen corresponding path program 1 times [2024-10-11 02:32:08,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:32:08,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900934423] [2024-10-11 02:32:08,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:32:08,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:32:08,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:09,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:32:09,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:09,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:32:09,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:09,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 02:32:09,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:09,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:32:09,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:09,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-11 02:32:09,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:09,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 02:32:09,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:09,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:32:09,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:09,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:32:09,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:09,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:32:09,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:09,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:32:09,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:09,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-11 02:32:09,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:09,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 02:32:09,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:09,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:32:09,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:09,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:32:09,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:09,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-11 02:32:09,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:09,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 02:32:09,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:09,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-11 02:32:09,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:09,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-11 02:32:09,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:09,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:32:09,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:09,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:32:09,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:09,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-11 02:32:09,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:09,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 02:32:09,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:09,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:32:09,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:09,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:32:09,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:09,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-11 02:32:09,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:09,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 02:32:09,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:09,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-10-11 02:32:09,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:09,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-10-11 02:32:09,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:09,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-10-11 02:32:09,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:09,713 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2024-10-11 02:32:09,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:32:09,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900934423] [2024-10-11 02:32:09,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900934423] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:32:09,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:32:09,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 02:32:09,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851656602] [2024-10-11 02:32:09,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:32:09,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 02:32:09,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:32:09,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 02:32:09,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-11 02:32:09,715 INFO L87 Difference]: Start difference. First operand 10293 states and 17326 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-11 02:32:16,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:32:16,482 INFO L93 Difference]: Finished difference Result 23309 states and 39822 transitions. [2024-10-11 02:32:16,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 02:32:16,483 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 217 [2024-10-11 02:32:16,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:32:16,548 INFO L225 Difference]: With dead ends: 23309 [2024-10-11 02:32:16,548 INFO L226 Difference]: Without dead ends: 13028 [2024-10-11 02:32:16,586 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2024-10-11 02:32:16,587 INFO L432 NwaCegarLoop]: 386 mSDtfsCounter, 2147 mSDsluCounter, 1103 mSDsCounter, 0 mSdLazyCounter, 3435 mSolverCounterSat, 565 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2248 SdHoareTripleChecker+Valid, 1489 SdHoareTripleChecker+Invalid, 4000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 565 IncrementalHoareTripleChecker+Valid, 3435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-10-11 02:32:16,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2248 Valid, 1489 Invalid, 4000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [565 Valid, 3435 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-10-11 02:32:16,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13028 states. [2024-10-11 02:32:18,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13028 to 10266. [2024-10-11 02:32:18,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10266 states, 7970 states have (on average 1.5928481806775407) internal successors, (12695), 8132 states have internal predecessors, (12695), 1674 states have call successors, (1674), 529 states have call predecessors, (1674), 621 states have return successors, (2907), 1637 states have call predecessors, (2907), 1660 states have call successors, (2907) [2024-10-11 02:32:18,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10266 states to 10266 states and 17276 transitions. [2024-10-11 02:32:18,636 INFO L78 Accepts]: Start accepts. Automaton has 10266 states and 17276 transitions. Word has length 217 [2024-10-11 02:32:18,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:32:18,636 INFO L471 AbstractCegarLoop]: Abstraction has 10266 states and 17276 transitions. [2024-10-11 02:32:18,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-11 02:32:18,637 INFO L276 IsEmpty]: Start isEmpty. Operand 10266 states and 17276 transitions. [2024-10-11 02:32:18,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-10-11 02:32:18,644 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:32:18,644 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:32:18,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-11 02:32:18,645 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:32:18,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:32:18,645 INFO L85 PathProgramCache]: Analyzing trace with hash 296005945, now seen corresponding path program 1 times [2024-10-11 02:32:18,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:32:18,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900150250] [2024-10-11 02:32:18,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:32:18,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:32:18,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:18,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:32:18,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:19,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:32:19,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:19,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 02:32:19,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:19,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:32:19,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:19,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:32:19,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:19,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 02:32:19,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:19,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:32:19,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:19,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:32:19,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:19,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:32:19,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:19,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:32:19,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:19,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-11 02:32:19,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:19,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 02:32:19,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:19,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:32:19,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:19,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:32:19,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:19,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-11 02:32:19,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:19,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 02:32:19,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:19,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-11 02:32:19,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:19,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-11 02:32:19,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:19,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:32:19,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:19,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:32:19,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:19,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-11 02:32:19,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:19,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 02:32:19,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:19,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:32:19,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:19,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:32:19,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:19,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-11 02:32:19,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:19,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 02:32:19,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:19,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-10-11 02:32:19,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:19,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-10-11 02:32:19,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:19,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-10-11 02:32:19,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:19,779 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 8 proven. 27 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-10-11 02:32:19,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:32:19,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900150250] [2024-10-11 02:32:19,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900150250] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:32:19,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687749564] [2024-10-11 02:32:19,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:32:19,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:32:19,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:32:19,781 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:32:19,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-10-11 02:32:20,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:32:20,073 INFO L255 TraceCheckSpWp]: Trace formula consists of 2210 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-11 02:32:20,077 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:32:20,214 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 8 proven. 11 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-10-11 02:32:20,214 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 02:32:20,668 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 8 proven. 22 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-10-11 02:32:20,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1687749564] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 02:32:20,668 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 02:32:20,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 7, 8] total 23 [2024-10-11 02:32:20,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582612140] [2024-10-11 02:32:20,669 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 02:32:20,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-11 02:32:20,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:32:20,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-11 02:32:20,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2024-10-11 02:32:20,670 INFO L87 Difference]: Start difference. First operand 10266 states and 17276 transitions. Second operand has 23 states, 22 states have (on average 10.590909090909092) internal successors, (233), 17 states have internal predecessors, (233), 10 states have call successors, (62), 11 states have call predecessors, (62), 12 states have return successors, (60), 16 states have call predecessors, (60), 10 states have call successors, (60)