./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_product30.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_product30.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 d84130cab59568fb669543ac086f4847eedfc87145b3c30d32e19c1d0d03b42f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 02:30:34,013 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 02:30:34,099 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 02:30:34,103 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 02:30:34,107 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 02:30:34,142 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 02:30:34,145 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 02:30:34,146 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 02:30:34,146 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 02:30:34,149 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 02:30:34,149 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 02:30:34,149 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 02:30:34,150 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 02:30:34,150 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 02:30:34,151 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 02:30:34,153 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 02:30:34,153 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 02:30:34,154 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 02:30:34,154 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 02:30:34,155 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 02:30:34,155 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 02:30:34,159 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 02:30:34,159 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 02:30:34,160 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 02:30:34,160 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 02:30:34,160 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 02:30:34,160 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 02:30:34,161 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 02:30:34,161 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 02:30:34,161 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 02:30:34,162 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 02:30:34,162 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 02:30:34,162 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 02:30:34,163 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 02:30:34,166 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 02:30:34,166 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 02:30:34,166 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 02:30:34,166 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 02:30:34,167 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 02:30:34,167 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 02:30:34,167 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 02:30:34,168 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 02:30:34,168 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d84130cab59568fb669543ac086f4847eedfc87145b3c30d32e19c1d0d03b42f [2024-10-11 02:30:34,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 02:30:34,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 02:30:34,436 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 02:30:34,438 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 02:30:34,439 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 02:30:34,440 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product30.cil.c [2024-10-11 02:30:35,856 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 02:30:36,172 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 02:30:36,172 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product30.cil.c [2024-10-11 02:30:36,195 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/20c3bc488/c98b54f5cf1a4aef95df6d9f43f4f8b7/FLAGb70812f59 [2024-10-11 02:30:36,209 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/20c3bc488/c98b54f5cf1a4aef95df6d9f43f4f8b7 [2024-10-11 02:30:36,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 02:30:36,214 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 02:30:36,217 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 02:30:36,217 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 02:30:36,222 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 02:30:36,223 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:30:36" (1/1) ... [2024-10-11 02:30:36,224 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@515b0133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:36, skipping insertion in model container [2024-10-11 02:30:36,224 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:30:36" (1/1) ... [2024-10-11 02:30:36,290 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 02:30:36,790 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_product30.cil.c[61393,61406] [2024-10-11 02:30:36,847 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 02:30:36,861 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 02:30:36,871 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [48] [2024-10-11 02:30:36,873 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [169] [2024-10-11 02:30:36,873 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification13_spec.i","") [837] [2024-10-11 02:30:36,873 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [932] [2024-10-11 02:30:36,874 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [1290] [2024-10-11 02:30:36,874 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1382] [2024-10-11 02:30:36,875 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2960] [2024-10-11 02:30:36,875 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2995] [2024-10-11 02:30:36,875 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [3004] [2024-10-11 02:30:36,876 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [3019] [2024-10-11 02:30:36,978 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_product30.cil.c[61393,61406] [2024-10-11 02:30:36,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 02:30:37,027 INFO L204 MainTranslator]: Completed translation [2024-10-11 02:30:37,027 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:37 WrapperNode [2024-10-11 02:30:37,028 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 02:30:37,029 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 02:30:37,029 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 02:30:37,029 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 02:30:37,036 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:37" (1/1) ... [2024-10-11 02:30:37,072 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:37" (1/1) ... [2024-10-11 02:30:37,136 INFO L138 Inliner]: procedures = 93, calls = 346, calls flagged for inlining = 30, calls inlined = 26, statements flattened = 882 [2024-10-11 02:30:37,140 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 02:30:37,141 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 02:30:37,141 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 02:30:37,141 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 02:30:37,153 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:37" (1/1) ... [2024-10-11 02:30:37,153 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:37" (1/1) ... [2024-10-11 02:30:37,161 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:37" (1/1) ... [2024-10-11 02:30:37,192 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-10-11 02:30:37,193 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:37" (1/1) ... [2024-10-11 02:30:37,193 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:37" (1/1) ... [2024-10-11 02:30:37,226 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:37" (1/1) ... [2024-10-11 02:30:37,243 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:37" (1/1) ... [2024-10-11 02:30:37,250 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:37" (1/1) ... [2024-10-11 02:30:37,256 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:37" (1/1) ... [2024-10-11 02:30:37,270 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 02:30:37,271 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 02:30:37,272 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 02:30:37,272 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 02:30:37,273 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:37" (1/1) ... [2024-10-11 02:30:37,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 02:30:37,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:30:37,320 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 02:30:37,353 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 02:30:37,444 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2024-10-11 02:30:37,445 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2024-10-11 02:30:37,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 02:30:37,445 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2024-10-11 02:30:37,445 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2024-10-11 02:30:37,445 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-10-11 02:30:37,446 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-10-11 02:30:37,446 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2024-10-11 02:30:37,447 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2024-10-11 02:30:37,447 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-10-11 02:30:37,447 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-10-11 02:30:37,447 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-10-11 02:30:37,448 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-10-11 02:30:37,448 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2024-10-11 02:30:37,448 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2024-10-11 02:30:37,449 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-10-11 02:30:37,449 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-10-11 02:30:37,449 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2024-10-11 02:30:37,449 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2024-10-11 02:30:37,451 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-11 02:30:37,451 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-11 02:30:37,451 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-11 02:30:37,451 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-11 02:30:37,451 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-10-11 02:30:37,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-10-11 02:30:37,451 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-10-11 02:30:37,451 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-10-11 02:30:37,451 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-10-11 02:30:37,451 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-10-11 02:30:37,451 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-10-11 02:30:37,452 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-10-11 02:30:37,452 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-10-11 02:30:37,452 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-10-11 02:30:37,452 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-10-11 02:30:37,452 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-10-11 02:30:37,452 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-10-11 02:30:37,452 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-10-11 02:30:37,453 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-10-11 02:30:37,454 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-10-11 02:30:37,454 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-10-11 02:30:37,454 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-10-11 02:30:37,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 02:30:37,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 02:30:37,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-11 02:30:37,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-11 02:30:37,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-11 02:30:37,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-11 02:30:37,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-11 02:30:37,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-11 02:30:37,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-11 02:30:37,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-10-11 02:30:37,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-10-11 02:30:37,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-10-11 02:30:37,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-10-11 02:30:37,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-10-11 02:30:37,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-10-11 02:30:37,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-10-11 02:30:37,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-10-11 02:30:37,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-10-11 02:30:37,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-10-11 02:30:37,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-10-11 02:30:37,458 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2024-10-11 02:30:37,458 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2024-10-11 02:30:37,458 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-10-11 02:30:37,459 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-10-11 02:30:37,459 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-10-11 02:30:37,459 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-10-11 02:30:37,459 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-10-11 02:30:37,459 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-10-11 02:30:37,459 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__twothirdsfull [2024-10-11 02:30:37,459 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__twothirdsfull [2024-10-11 02:30:37,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 02:30:37,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 02:30:37,459 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-10-11 02:30:37,459 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-10-11 02:30:37,677 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 02:30:37,681 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 02:30:38,989 INFO L? ?]: Removed 476 outVars from TransFormulas that were not future-live. [2024-10-11 02:30:38,989 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 02:30:39,099 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 02:30:39,103 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-11 02:30:39,103 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:30:39 BoogieIcfgContainer [2024-10-11 02:30:39,104 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 02:30:39,106 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 02:30:39,107 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 02:30:39,110 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 02:30:39,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:30:36" (1/3) ... [2024-10-11 02:30:39,112 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57a69584 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:30:39, skipping insertion in model container [2024-10-11 02:30:39,112 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:37" (2/3) ... [2024-10-11 02:30:39,112 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57a69584 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:30:39, skipping insertion in model container [2024-10-11 02:30:39,113 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:30:39" (3/3) ... [2024-10-11 02:30:39,114 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec13_product30.cil.c [2024-10-11 02:30:39,131 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 02:30:39,132 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 02:30:39,225 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 02:30:39,231 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;@76d5db72, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 02:30:39,232 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 02:30:39,240 INFO L276 IsEmpty]: Start isEmpty. Operand has 586 states, 456 states have (on average 1.7258771929824561) internal successors, (787), 476 states have internal predecessors, (787), 102 states have call successors, (102), 26 states have call predecessors, (102), 26 states have return successors, (102), 98 states have call predecessors, (102), 102 states have call successors, (102) [2024-10-11 02:30:39,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-11 02:30:39,266 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:39,267 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 02:30:39,268 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:39,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:39,274 INFO L85 PathProgramCache]: Analyzing trace with hash 527405288, now seen corresponding path program 1 times [2024-10-11 02:30:39,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:39,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433800739] [2024-10-11 02:30:39,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:39,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:39,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:39,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:39,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:40,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:30:40,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:40,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 02:30:40,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:40,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:40,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:40,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:30:40,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:40,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 02:30:40,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:40,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:40,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:40,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 02:30:40,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:40,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 02:30:40,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:40,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 02:30:40,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:40,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-11 02:30:40,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:40,568 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 02:30:40,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:40,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433800739] [2024-10-11 02:30:40,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433800739] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:30:40,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502618740] [2024-10-11 02:30:40,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:40,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:40,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:30:40,574 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 02:30:40,576 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 02:30:40,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:40,934 INFO L255 TraceCheckSpWp]: Trace formula consists of 1480 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-11 02:30:40,942 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:30:40,987 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-10-11 02:30:40,987 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:30:40,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1502618740] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:40,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:30:40,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 6 [2024-10-11 02:30:40,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137275731] [2024-10-11 02:30:40,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:40,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 02:30:40,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:41,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 02:30:41,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 02:30:41,022 INFO L87 Difference]: Start difference. First operand has 586 states, 456 states have (on average 1.7258771929824561) internal successors, (787), 476 states have internal predecessors, (787), 102 states have call successors, (102), 26 states have call predecessors, (102), 26 states have return successors, (102), 98 states have call predecessors, (102), 102 states have call successors, (102) Second operand has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 02:30:41,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:30:41,162 INFO L93 Difference]: Finished difference Result 1156 states and 1971 transitions. [2024-10-11 02:30:41,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 02:30:41,165 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 84 [2024-10-11 02:30:41,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:30:41,190 INFO L225 Difference]: With dead ends: 1156 [2024-10-11 02:30:41,190 INFO L226 Difference]: Without dead ends: 580 [2024-10-11 02:30:41,197 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 02:30:41,201 INFO L432 NwaCegarLoop]: 963 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:30:41,202 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 963 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 02:30:41,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2024-10-11 02:30:41,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2024-10-11 02:30:41,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 453 states have (on average 1.7019867549668874) internal successors, (771), 471 states have internal predecessors, (771), 102 states have call successors, (102), 26 states have call predecessors, (102), 24 states have return successors, (99), 96 states have call predecessors, (99), 99 states have call successors, (99) [2024-10-11 02:30:41,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 972 transitions. [2024-10-11 02:30:41,304 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 972 transitions. Word has length 84 [2024-10-11 02:30:41,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:30:41,305 INFO L471 AbstractCegarLoop]: Abstraction has 580 states and 972 transitions. [2024-10-11 02:30:41,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 02:30:41,306 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 972 transitions. [2024-10-11 02:30:41,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-11 02:30:41,312 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:41,313 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 02:30:41,338 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 02:30:41,517 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 02:30:41,518 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:41,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:41,519 INFO L85 PathProgramCache]: Analyzing trace with hash -970584248, now seen corresponding path program 1 times [2024-10-11 02:30:41,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:41,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061254627] [2024-10-11 02:30:41,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:41,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:41,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:41,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:41,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:41,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:30:41,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:41,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 02:30:41,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:41,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:41,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:41,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:30:41,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:42,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 02:30:42,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:42,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:42,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:42,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 02:30:42,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:42,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 02:30:42,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:42,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 02:30:42,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:42,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-11 02:30:42,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:42,264 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 02:30:42,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:42,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061254627] [2024-10-11 02:30:42,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061254627] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:30:42,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [509094403] [2024-10-11 02:30:42,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:42,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:42,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:30:42,267 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 02:30:42,269 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 02:30:42,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:42,597 INFO L255 TraceCheckSpWp]: Trace formula consists of 1474 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 02:30:42,602 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:30:42,648 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 02:30:42,648 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:30:42,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [509094403] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:42,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:30:42,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-10-11 02:30:42,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997472600] [2024-10-11 02:30:42,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:42,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 02:30:42,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:42,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 02:30:42,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-11 02:30:42,651 INFO L87 Difference]: Start difference. First operand 580 states and 972 transitions. 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 02:30:42,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:30:42,809 INFO L93 Difference]: Finished difference Result 1166 states and 1957 transitions. [2024-10-11 02:30:42,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 02:30:42,810 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 02:30:42,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:30:42,816 INFO L225 Difference]: With dead ends: 1166 [2024-10-11 02:30:42,816 INFO L226 Difference]: Without dead ends: 589 [2024-10-11 02:30:42,820 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:30:42,821 INFO L432 NwaCegarLoop]: 944 mSDtfsCounter, 17 mSDsluCounter, 1880 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 2824 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:30:42,822 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 2824 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:30:42,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2024-10-11 02:30:42,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 589. [2024-10-11 02:30:42,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 461 states have (on average 1.702819956616052) internal successors, (785), 479 states have internal predecessors, (785), 102 states have call successors, (102), 27 states have call predecessors, (102), 25 states have return successors, (99), 96 states have call predecessors, (99), 99 states have call successors, (99) [2024-10-11 02:30:42,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 986 transitions. [2024-10-11 02:30:42,865 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 986 transitions. Word has length 84 [2024-10-11 02:30:42,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:30:42,865 INFO L471 AbstractCegarLoop]: Abstraction has 589 states and 986 transitions. [2024-10-11 02:30:42,866 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 02:30:42,866 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 986 transitions. [2024-10-11 02:30:42,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-11 02:30:42,871 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:42,872 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] [2024-10-11 02:30:42,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-11 02:30:43,076 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 02:30:43,077 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:43,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:43,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1535305076, now seen corresponding path program 1 times [2024-10-11 02:30:43,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:43,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034756168] [2024-10-11 02:30:43,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:43,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:43,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:43,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:43,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:43,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:30:43,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:43,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 02:30:43,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:43,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:43,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:43,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:30:43,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:43,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 02:30:43,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:43,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:43,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:43,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 02:30:43,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:43,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-11 02:30:43,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:43,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 02:30:43,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:43,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 02:30:43,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:43,900 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-11 02:30:43,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:43,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034756168] [2024-10-11 02:30:43,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034756168] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:30:43,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821838273] [2024-10-11 02:30:43,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:43,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:43,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:30:43,906 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 02:30:43,908 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 02:30:44,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:44,201 INFO L255 TraceCheckSpWp]: Trace formula consists of 1476 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 02:30:44,207 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:30:44,272 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-10-11 02:30:44,272 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:30:44,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821838273] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:44,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:30:44,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 13 [2024-10-11 02:30:44,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689797061] [2024-10-11 02:30:44,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:44,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 02:30:44,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:44,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 02:30:44,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-11 02:30:44,275 INFO L87 Difference]: Start difference. First operand 589 states and 986 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (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 02:30:44,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:30:44,579 INFO L93 Difference]: Finished difference Result 1233 states and 2078 transitions. [2024-10-11 02:30:44,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 02:30:44,580 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (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 86 [2024-10-11 02:30:44,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:30:44,585 INFO L225 Difference]: With dead ends: 1233 [2024-10-11 02:30:44,586 INFO L226 Difference]: Without dead ends: 649 [2024-10-11 02:30:44,589 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-10-11 02:30:44,590 INFO L432 NwaCegarLoop]: 928 mSDtfsCounter, 121 mSDsluCounter, 1785 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 2713 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 02:30:44,591 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 2713 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 02:30:44,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2024-10-11 02:30:44,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 633. [2024-10-11 02:30:44,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 633 states, 504 states have (on average 1.7222222222222223) internal successors, (868), 522 states have internal predecessors, (868), 102 states have call successors, (102), 28 states have call predecessors, (102), 26 states have return successors, (99), 96 states have call predecessors, (99), 99 states have call successors, (99) [2024-10-11 02:30:44,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 1069 transitions. [2024-10-11 02:30:44,620 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 1069 transitions. Word has length 86 [2024-10-11 02:30:44,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:30:44,622 INFO L471 AbstractCegarLoop]: Abstraction has 633 states and 1069 transitions. [2024-10-11 02:30:44,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (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 02:30:44,623 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 1069 transitions. [2024-10-11 02:30:44,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-11 02:30:44,626 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:44,626 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 02:30:44,646 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-11 02:30:44,827 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 02:30:44,828 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:44,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:44,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1085736813, now seen corresponding path program 1 times [2024-10-11 02:30:44,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:44,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654025368] [2024-10-11 02:30:44,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:44,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:44,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:44,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:44,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:45,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:30:45,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:45,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 02:30:45,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:45,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:45,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:45,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:30:45,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:45,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-11 02:30:45,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:45,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 02:30:45,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:45,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-11 02:30:45,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:45,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-11 02:30:45,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:45,221 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 02:30:45,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:45,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654025368] [2024-10-11 02:30:45,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654025368] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:30:45,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761088186] [2024-10-11 02:30:45,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:45,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:45,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:30:45,224 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 02:30:45,226 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 02:30:45,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:45,497 INFO L255 TraceCheckSpWp]: Trace formula consists of 1242 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 02:30:45,500 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:30:45,582 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 02:30:45,582 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:30:45,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761088186] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:45,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:30:45,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2024-10-11 02:30:45,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970328871] [2024-10-11 02:30:45,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:45,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:30:45,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:45,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:30:45,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-10-11 02:30:45,585 INFO L87 Difference]: Start difference. First operand 633 states and 1069 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 02:30:45,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:30:45,781 INFO L93 Difference]: Finished difference Result 1284 states and 2168 transitions. [2024-10-11 02:30:45,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 02:30:45,782 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 02:30:45,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:30:45,792 INFO L225 Difference]: With dead ends: 1284 [2024-10-11 02:30:45,792 INFO L226 Difference]: Without dead ends: 656 [2024-10-11 02:30:45,796 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 02:30:45,797 INFO L432 NwaCegarLoop]: 944 mSDtfsCounter, 89 mSDsluCounter, 4630 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 5574 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:30:45,797 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 5574 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:30:45,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2024-10-11 02:30:45,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 645. [2024-10-11 02:30:45,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 513 states have (on average 1.719298245614035) internal successors, (882), 533 states have internal predecessors, (882), 103 states have call successors, (103), 28 states have call predecessors, (103), 28 states have return successors, (104), 97 states have call predecessors, (104), 100 states have call successors, (104) [2024-10-11 02:30:45,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 1089 transitions. [2024-10-11 02:30:45,836 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 1089 transitions. Word has length 76 [2024-10-11 02:30:45,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:30:45,836 INFO L471 AbstractCegarLoop]: Abstraction has 645 states and 1089 transitions. [2024-10-11 02:30:45,836 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 02:30:45,836 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 1089 transitions. [2024-10-11 02:30:45,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-11 02:30:45,839 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:45,839 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 02:30:45,856 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-11 02:30:46,040 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 02:30:46,040 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:46,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:46,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1367152669, now seen corresponding path program 1 times [2024-10-11 02:30:46,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:46,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356908371] [2024-10-11 02:30:46,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:46,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:46,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:46,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:46,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:46,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:30:46,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:46,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 02:30:46,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:46,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:46,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:46,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:30:46,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:46,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-11 02:30:46,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:46,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:46,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:46,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 02:30:46,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:46,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 02:30:46,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:46,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 02:30:46,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:46,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-11 02:30:46,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:46,731 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 02:30:46,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:46,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356908371] [2024-10-11 02:30:46,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356908371] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:30:46,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726400292] [2024-10-11 02:30:46,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:46,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:46,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:30:46,733 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 02:30:46,735 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 02:30:47,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:47,012 INFO L255 TraceCheckSpWp]: Trace formula consists of 1479 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 02:30:47,016 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:30:47,092 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 02:30:47,092 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:30:47,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726400292] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:47,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:30:47,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-10-11 02:30:47,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38715379] [2024-10-11 02:30:47,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:47,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:30:47,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:47,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:30:47,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-10-11 02:30:47,094 INFO L87 Difference]: Start difference. First operand 645 states and 1089 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 02:30:47,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:30:47,270 INFO L93 Difference]: Finished difference Result 1302 states and 2197 transitions. [2024-10-11 02:30:47,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 02:30:47,270 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 02:30:47,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:30:47,275 INFO L225 Difference]: With dead ends: 1302 [2024-10-11 02:30:47,276 INFO L226 Difference]: Without dead ends: 664 [2024-10-11 02:30:47,279 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-10-11 02:30:47,280 INFO L432 NwaCegarLoop]: 944 mSDtfsCounter, 100 mSDsluCounter, 4618 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 5562 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:30:47,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 5562 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:30:47,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2024-10-11 02:30:47,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 645. [2024-10-11 02:30:47,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 513 states have (on average 1.719298245614035) internal successors, (882), 533 states have internal predecessors, (882), 103 states have call successors, (103), 28 states have call predecessors, (103), 28 states have return successors, (104), 97 states have call predecessors, (104), 100 states have call successors, (104) [2024-10-11 02:30:47,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 1089 transitions. [2024-10-11 02:30:47,304 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 1089 transitions. Word has length 89 [2024-10-11 02:30:47,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:30:47,305 INFO L471 AbstractCegarLoop]: Abstraction has 645 states and 1089 transitions. [2024-10-11 02:30:47,305 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 02:30:47,305 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 1089 transitions. [2024-10-11 02:30:47,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-11 02:30:47,308 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:47,308 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 02:30:47,328 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 02:30:47,508 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 02:30:47,509 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:47,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:47,509 INFO L85 PathProgramCache]: Analyzing trace with hash -2041746164, now seen corresponding path program 1 times [2024-10-11 02:30:47,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:47,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939937001] [2024-10-11 02:30:47,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:47,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:47,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:47,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:47,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:47,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 02:30:47,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:47,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 02:30:47,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:47,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:47,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:47,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:30:47,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:47,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 02:30:47,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:47,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 02:30:47,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:47,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-11 02:30:47,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:47,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 02:30:47,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:47,754 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 02:30:47,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:47,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939937001] [2024-10-11 02:30:47,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939937001] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:30:47,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388390457] [2024-10-11 02:30:47,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:47,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:47,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:30:47,756 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 02:30:47,757 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 02:30:48,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:48,003 INFO L255 TraceCheckSpWp]: Trace formula consists of 1243 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 02:30:48,005 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:30:48,032 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 02:30:48,032 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:30:48,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388390457] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:48,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:30:48,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-10-11 02:30:48,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98873803] [2024-10-11 02:30:48,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:48,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 02:30:48,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:48,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 02:30:48,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:30:48,036 INFO L87 Difference]: Start difference. First operand 645 states and 1089 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 02:30:48,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:30:48,194 INFO L93 Difference]: Finished difference Result 1298 states and 2189 transitions. [2024-10-11 02:30:48,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 02:30:48,194 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 02:30:48,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:30:48,201 INFO L225 Difference]: With dead ends: 1298 [2024-10-11 02:30:48,201 INFO L226 Difference]: Without dead ends: 656 [2024-10-11 02:30:48,205 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-11 02:30:48,206 INFO L432 NwaCegarLoop]: 945 mSDtfsCounter, 12 mSDsluCounter, 1881 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2826 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:30:48,206 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2826 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:30:48,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2024-10-11 02:30:48,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 654. [2024-10-11 02:30:48,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 521 states have (on average 1.710172744721689) internal successors, (891), 541 states have internal predecessors, (891), 103 states have call successors, (103), 29 states have call predecessors, (103), 29 states have return successors, (103), 97 states have call predecessors, (103), 100 states have call successors, (103) [2024-10-11 02:30:48,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 1097 transitions. [2024-10-11 02:30:48,235 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 1097 transitions. Word has length 77 [2024-10-11 02:30:48,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:30:48,236 INFO L471 AbstractCegarLoop]: Abstraction has 654 states and 1097 transitions. [2024-10-11 02:30:48,236 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 02:30:48,236 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 1097 transitions. [2024-10-11 02:30:48,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-10-11 02:30:48,239 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:48,239 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 02:30:48,258 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 02:30:48,440 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 02:30:48,440 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:48,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:48,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1802286192, now seen corresponding path program 1 times [2024-10-11 02:30:48,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:48,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144481013] [2024-10-11 02:30:48,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:48,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:48,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:48,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:48,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:48,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:30:48,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:48,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:30:48,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:48,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:48,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:48,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:30:48,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:49,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-11 02:30:49,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:49,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:49,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:49,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 02:30:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:49,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-11 02:30:49,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:49,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 02:30:49,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:49,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-11 02:30:49,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:49,092 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 02:30:49,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:49,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144481013] [2024-10-11 02:30:49,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144481013] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:30:49,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671313017] [2024-10-11 02:30:49,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:49,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:49,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:30:49,095 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 02:30:49,097 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 02:30:49,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:49,378 INFO L255 TraceCheckSpWp]: Trace formula consists of 1480 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 02:30:49,381 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:30:49,481 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 02:30:49,481 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:30:49,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1671313017] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:49,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:30:49,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-10-11 02:30:49,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223970594] [2024-10-11 02:30:49,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:49,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:30:49,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:49,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:30:49,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-10-11 02:30:49,485 INFO L87 Difference]: Start difference. First operand 654 states and 1097 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 02:30:49,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:30:49,653 INFO L93 Difference]: Finished difference Result 1311 states and 2200 transitions. [2024-10-11 02:30:49,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 02:30:49,654 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 02:30:49,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:30:49,660 INFO L225 Difference]: With dead ends: 1311 [2024-10-11 02:30:49,660 INFO L226 Difference]: Without dead ends: 675 [2024-10-11 02:30:49,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-10-11 02:30:49,665 INFO L432 NwaCegarLoop]: 944 mSDtfsCounter, 111 mSDsluCounter, 4606 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 5550 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:30:49,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 5550 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:30:49,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2024-10-11 02:30:49,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 654. [2024-10-11 02:30:49,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 521 states have (on average 1.710172744721689) internal successors, (891), 541 states have internal predecessors, (891), 103 states have call successors, (103), 29 states have call predecessors, (103), 29 states have return successors, (103), 97 states have call predecessors, (103), 100 states have call successors, (103) [2024-10-11 02:30:49,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 1097 transitions. [2024-10-11 02:30:49,690 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 1097 transitions. Word has length 90 [2024-10-11 02:30:49,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:30:49,690 INFO L471 AbstractCegarLoop]: Abstraction has 654 states and 1097 transitions. [2024-10-11 02:30:49,691 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 02:30:49,691 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 1097 transitions. [2024-10-11 02:30:49,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-11 02:30:49,693 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:49,693 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 02:30:49,712 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 02:30:49,894 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 02:30:49,894 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:49,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:49,895 INFO L85 PathProgramCache]: Analyzing trace with hash 2088434483, now seen corresponding path program 1 times [2024-10-11 02:30:49,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:49,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588910948] [2024-10-11 02:30:49,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:49,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:49,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:49,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:49,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:50,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:30:50,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:50,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:30:50,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:50,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:50,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:50,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:30:50,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:50,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 02:30:50,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:50,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 02:30:50,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:50,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 02:30:50,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:50,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-11 02:30:50,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:50,182 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 02:30:50,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:50,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588910948] [2024-10-11 02:30:50,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588910948] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:30:50,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969417126] [2024-10-11 02:30:50,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:50,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:50,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:30:50,185 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 02:30:50,186 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 02:30:50,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:50,435 INFO L255 TraceCheckSpWp]: Trace formula consists of 1240 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 02:30:50,437 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:30:50,505 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 02:30:50,506 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:30:50,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1969417126] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:50,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:30:50,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2024-10-11 02:30:50,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512187773] [2024-10-11 02:30:50,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:50,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 02:30:50,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:50,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 02:30:50,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-10-11 02:30:50,507 INFO L87 Difference]: Start difference. First operand 654 states and 1097 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 02:30:50,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:30:50,734 INFO L93 Difference]: Finished difference Result 1313 states and 2203 transitions. [2024-10-11 02:30:50,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 02:30:50,735 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 02:30:50,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:30:50,742 INFO L225 Difference]: With dead ends: 1313 [2024-10-11 02:30:50,742 INFO L226 Difference]: Without dead ends: 677 [2024-10-11 02:30:50,745 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 02:30:50,746 INFO L432 NwaCegarLoop]: 934 mSDtfsCounter, 95 mSDsluCounter, 5510 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 6444 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 02:30:50,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 6444 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 02:30:50,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2024-10-11 02:30:50,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 654. [2024-10-11 02:30:50,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 521 states have (on average 1.710172744721689) internal successors, (891), 541 states have internal predecessors, (891), 103 states have call successors, (103), 29 states have call predecessors, (103), 29 states have return successors, (103), 97 states have call predecessors, (103), 100 states have call successors, (103) [2024-10-11 02:30:50,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 1097 transitions. [2024-10-11 02:30:50,771 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 1097 transitions. Word has length 78 [2024-10-11 02:30:50,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:30:50,771 INFO L471 AbstractCegarLoop]: Abstraction has 654 states and 1097 transitions. [2024-10-11 02:30:50,771 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 02:30:50,772 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 1097 transitions. [2024-10-11 02:30:50,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-10-11 02:30:50,774 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:50,774 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] [2024-10-11 02:30:50,792 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 02:30:50,974 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 02:30:50,974 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:50,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:50,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1937059298, now seen corresponding path program 1 times [2024-10-11 02:30:50,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:50,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976233634] [2024-10-11 02:30:50,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:50,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:50,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:51,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:51,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:51,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:30:51,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:51,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 02:30:51,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:51,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:51,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:51,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:30:51,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:51,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 02:30:51,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:51,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 02:30:51,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:51,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 02:30:51,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:51,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 02:30:51,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:51,317 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 02:30:51,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:51,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976233634] [2024-10-11 02:30:51,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976233634] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:30:51,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736366143] [2024-10-11 02:30:51,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:51,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:51,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:30:51,320 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 02:30:51,321 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 02:30:51,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:51,577 INFO L255 TraceCheckSpWp]: Trace formula consists of 1241 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 02:30:51,580 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:30:51,665 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 02:30:51,666 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:30:51,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736366143] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:51,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:30:51,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2024-10-11 02:30:51,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946290572] [2024-10-11 02:30:51,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:51,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 02:30:51,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:51,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 02:30:51,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-10-11 02:30:51,668 INFO L87 Difference]: Start difference. First operand 654 states and 1097 transitions. Second operand has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 02:30:51,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:30:51,906 INFO L93 Difference]: Finished difference Result 1313 states and 2203 transitions. [2024-10-11 02:30:51,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 02:30:51,907 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 79 [2024-10-11 02:30:51,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:30:51,912 INFO L225 Difference]: With dead ends: 1313 [2024-10-11 02:30:51,912 INFO L226 Difference]: Without dead ends: 677 [2024-10-11 02:30:51,915 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 92 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 02:30:51,918 INFO L432 NwaCegarLoop]: 934 mSDtfsCounter, 105 mSDsluCounter, 5498 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 6432 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 02:30:51,918 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 6432 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 02:30:51,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2024-10-11 02:30:51,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 654. [2024-10-11 02:30:51,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 521 states have (on average 1.710172744721689) internal successors, (891), 541 states have internal predecessors, (891), 103 states have call successors, (103), 29 states have call predecessors, (103), 29 states have return successors, (103), 97 states have call predecessors, (103), 100 states have call successors, (103) [2024-10-11 02:30:51,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 1097 transitions. [2024-10-11 02:30:51,942 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 1097 transitions. Word has length 79 [2024-10-11 02:30:51,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:30:51,942 INFO L471 AbstractCegarLoop]: Abstraction has 654 states and 1097 transitions. [2024-10-11 02:30:51,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 02:30:51,942 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 1097 transitions. [2024-10-11 02:30:51,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-11 02:30:51,945 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:51,945 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 02:30:51,964 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-11 02:30:52,145 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 02:30:52,146 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:52,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:52,146 INFO L85 PathProgramCache]: Analyzing trace with hash 881560, now seen corresponding path program 1 times [2024-10-11 02:30:52,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:52,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585127632] [2024-10-11 02:30:52,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:52,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:52,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:52,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:52,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:52,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:30:52,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:52,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:30:52,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:52,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:52,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:52,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:30:52,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:52,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 02:30:52,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:52,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 02:30:52,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:52,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 02:30:52,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:52,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 02:30:52,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:52,477 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 02:30:52,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:52,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585127632] [2024-10-11 02:30:52,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585127632] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:30:52,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686779976] [2024-10-11 02:30:52,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:52,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:52,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:30:52,480 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 02:30:52,481 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 02:30:52,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:52,734 INFO L255 TraceCheckSpWp]: Trace formula consists of 1242 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 02:30:52,736 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:30:52,823 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 02:30:52,824 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:30:52,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1686779976] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:52,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:30:52,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2024-10-11 02:30:52,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582760411] [2024-10-11 02:30:52,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:52,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 02:30:52,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:52,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 02:30:52,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-10-11 02:30:52,826 INFO L87 Difference]: Start difference. First operand 654 states and 1097 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 02:30:53,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:30:53,046 INFO L93 Difference]: Finished difference Result 1305 states and 2189 transitions. [2024-10-11 02:30:53,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 02:30:53,047 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 02:30:53,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:30:53,052 INFO L225 Difference]: With dead ends: 1305 [2024-10-11 02:30:53,052 INFO L226 Difference]: Without dead ends: 669 [2024-10-11 02:30:53,055 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-10-11 02:30:53,056 INFO L432 NwaCegarLoop]: 934 mSDtfsCounter, 115 mSDsluCounter, 5486 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 6420 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 02:30:53,057 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 6420 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 02:30:53,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2024-10-11 02:30:53,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 654. [2024-10-11 02:30:53,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 521 states have (on average 1.710172744721689) internal successors, (891), 541 states have internal predecessors, (891), 103 states have call successors, (103), 29 states have call predecessors, (103), 29 states have return successors, (103), 97 states have call predecessors, (103), 100 states have call successors, (103) [2024-10-11 02:30:53,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 1097 transitions. [2024-10-11 02:30:53,082 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 1097 transitions. Word has length 80 [2024-10-11 02:30:53,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:30:53,083 INFO L471 AbstractCegarLoop]: Abstraction has 654 states and 1097 transitions. [2024-10-11 02:30:53,083 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 02:30:53,083 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 1097 transitions. [2024-10-11 02:30:53,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-11 02:30:53,085 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:53,085 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 02:30:53,105 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 02:30:53,289 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 02:30:53,290 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:53,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:53,290 INFO L85 PathProgramCache]: Analyzing trace with hash -736683339, now seen corresponding path program 1 times [2024-10-11 02:30:53,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:53,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63714611] [2024-10-11 02:30:53,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:53,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:53,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:53,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:53,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:53,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:30:53,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:53,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:30:53,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:53,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:53,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:53,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:30:53,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:53,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 02:30:53,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:53,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:53,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:53,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-11 02:30:53,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:53,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-11 02:30:53,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:53,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 02:30:53,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:53,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-11 02:30:53,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:53,882 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 02:30:53,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:53,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63714611] [2024-10-11 02:30:53,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63714611] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:30:53,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900390962] [2024-10-11 02:30:53,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:53,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:53,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:30:53,885 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 02:30:53,886 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 02:30:54,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:54,208 INFO L255 TraceCheckSpWp]: Trace formula consists of 1481 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 02:30:54,212 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:30:54,243 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 02:30:54,244 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:30:54,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900390962] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:54,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:30:54,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-10-11 02:30:54,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453804106] [2024-10-11 02:30:54,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:54,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 02:30:54,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:54,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 02:30:54,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:30:54,247 INFO L87 Difference]: Start difference. First operand 654 states and 1097 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 02:30:54,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:30:54,357 INFO L93 Difference]: Finished difference Result 1279 states and 2151 transitions. [2024-10-11 02:30:54,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 02:30:54,358 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 02:30:54,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:30:54,365 INFO L225 Difference]: With dead ends: 1279 [2024-10-11 02:30:54,365 INFO L226 Difference]: Without dead ends: 654 [2024-10-11 02:30:54,369 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-10-11 02:30:54,369 INFO L432 NwaCegarLoop]: 942 mSDtfsCounter, 20 mSDsluCounter, 1878 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 2820 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:30:54,370 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 2820 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:30:54,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2024-10-11 02:30:54,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 654. [2024-10-11 02:30:54,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 521 states have (on average 1.7005758157389634) internal successors, (886), 541 states have internal predecessors, (886), 103 states have call successors, (103), 29 states have call predecessors, (103), 29 states have return successors, (103), 97 states have call predecessors, (103), 100 states have call successors, (103) [2024-10-11 02:30:54,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 1092 transitions. [2024-10-11 02:30:54,398 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 1092 transitions. Word has length 92 [2024-10-11 02:30:54,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:30:54,399 INFO L471 AbstractCegarLoop]: Abstraction has 654 states and 1092 transitions. [2024-10-11 02:30:54,399 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 02:30:54,399 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 1092 transitions. [2024-10-11 02:30:54,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-11 02:30:54,402 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:54,403 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 02:30:54,423 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 02:30:54,603 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 02:30:54,604 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:54,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:54,604 INFO L85 PathProgramCache]: Analyzing trace with hash -636420371, now seen corresponding path program 1 times [2024-10-11 02:30:54,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:54,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368968458] [2024-10-11 02:30:54,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:54,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:54,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:54,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:54,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:54,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:30:54,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:54,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:30:54,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:54,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:54,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:54,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:30:54,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:54,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-11 02:30:54,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:54,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 02:30:54,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:54,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-11 02:30:54,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:54,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 02:30:54,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:54,840 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 02:30:54,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:54,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368968458] [2024-10-11 02:30:54,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368968458] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:30:54,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554246985] [2024-10-11 02:30:54,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:54,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:54,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:30:54,845 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 02:30:54,848 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 02:30:55,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:55,103 INFO L255 TraceCheckSpWp]: Trace formula consists of 1246 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 02:30:55,105 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:30:55,139 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 02:30:55,141 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:30:55,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [554246985] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:55,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:30:55,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-10-11 02:30:55,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685184910] [2024-10-11 02:30:55,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:55,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 02:30:55,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:55,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 02:30:55,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:30:55,143 INFO L87 Difference]: Start difference. First operand 654 states and 1092 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 02:30:55,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:30:55,355 INFO L93 Difference]: Finished difference Result 1303 states and 2186 transitions. [2024-10-11 02:30:55,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 02:30:55,356 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 02:30:55,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:30:55,361 INFO L225 Difference]: With dead ends: 1303 [2024-10-11 02:30:55,361 INFO L226 Difference]: Without dead ends: 734 [2024-10-11 02:30:55,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-10-11 02:30:55,365 INFO L432 NwaCegarLoop]: 905 mSDtfsCounter, 169 mSDsluCounter, 1783 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 2688 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 02:30:55,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 2688 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 02:30:55,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2024-10-11 02:30:55,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 698. [2024-10-11 02:30:55,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 564 states have (on average 1.7180851063829787) internal successors, (969), 584 states have internal predecessors, (969), 103 states have call successors, (103), 30 states have call predecessors, (103), 30 states have return successors, (102), 97 states have call predecessors, (102), 100 states have call successors, (102) [2024-10-11 02:30:55,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 1174 transitions. [2024-10-11 02:30:55,389 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 1174 transitions. Word has length 81 [2024-10-11 02:30:55,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:30:55,389 INFO L471 AbstractCegarLoop]: Abstraction has 698 states and 1174 transitions. [2024-10-11 02:30:55,389 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 02:30:55,390 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 1174 transitions. [2024-10-11 02:30:55,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-11 02:30:55,392 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:55,392 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 02:30:55,410 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 02:30:55,596 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 02:30:55,597 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:55,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:55,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1614947070, now seen corresponding path program 1 times [2024-10-11 02:30:55,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:55,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545693607] [2024-10-11 02:30:55,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:55,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:55,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:55,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:55,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:30:55,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:55,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:30:55,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:55,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:55,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:55,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:30:55,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:55,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 02:30:55,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:55,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 02:30:55,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:55,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-11 02:30:55,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:55,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-11 02:30:55,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:55,849 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-11 02:30:55,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:55,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545693607] [2024-10-11 02:30:55,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545693607] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:30:55,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1436279213] [2024-10-11 02:30:55,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:55,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:55,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:30:55,852 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 02:30:55,854 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 02:30:56,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:56,124 INFO L255 TraceCheckSpWp]: Trace formula consists of 1247 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 02:30:56,126 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:30:56,180 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 02:30:56,181 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:30:56,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1436279213] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:56,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:30:56,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2024-10-11 02:30:56,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358739990] [2024-10-11 02:30:56,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:56,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:30:56,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:56,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:30:56,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-11 02:30:56,183 INFO L87 Difference]: Start difference. First operand 698 states and 1174 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 02:30:56,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:30:56,339 INFO L93 Difference]: Finished difference Result 1299 states and 2176 transitions. [2024-10-11 02:30:56,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 02:30:56,339 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 02:30:56,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:30:56,345 INFO L225 Difference]: With dead ends: 1299 [2024-10-11 02:30:56,345 INFO L226 Difference]: Without dead ends: 730 [2024-10-11 02:30:56,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-10-11 02:30:56,350 INFO L432 NwaCegarLoop]: 945 mSDtfsCounter, 89 mSDsluCounter, 4636 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 5581 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:30:56,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 5581 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:30:56,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2024-10-11 02:30:56,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 710. [2024-10-11 02:30:56,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 573 states have (on average 1.7155322862129145) internal successors, (983), 595 states have internal predecessors, (983), 104 states have call successors, (104), 30 states have call predecessors, (104), 32 states have return successors, (105), 98 states have call predecessors, (105), 101 states have call successors, (105) [2024-10-11 02:30:56,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 1192 transitions. [2024-10-11 02:30:56,374 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 1192 transitions. Word has length 82 [2024-10-11 02:30:56,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:30:56,375 INFO L471 AbstractCegarLoop]: Abstraction has 710 states and 1192 transitions. [2024-10-11 02:30:56,375 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 02:30:56,375 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 1192 transitions. [2024-10-11 02:30:56,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-11 02:30:56,378 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:56,378 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 02:30:56,397 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-10-11 02:30:56,582 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 02:30:56,583 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:56,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:56,583 INFO L85 PathProgramCache]: Analyzing trace with hash -447773209, now seen corresponding path program 1 times [2024-10-11 02:30:56,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:56,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730184542] [2024-10-11 02:30:56,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:56,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:56,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:56,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:56,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:56,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:30:56,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:56,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:30:56,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:56,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:56,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:56,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:30:56,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:56,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 02:30:56,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:56,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-11 02:30:56,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:56,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-11 02:30:56,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:56,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 02:30:56,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:56,810 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 02:30:56,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:56,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730184542] [2024-10-11 02:30:56,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730184542] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:30:56,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344363992] [2024-10-11 02:30:56,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:56,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:56,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:30:56,813 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 02:30:56,816 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 02:30:57,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:57,086 INFO L255 TraceCheckSpWp]: Trace formula consists of 1248 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 02:30:57,088 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:30:57,149 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 02:30:57,150 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:30:57,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [344363992] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:57,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:30:57,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2024-10-11 02:30:57,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182243355] [2024-10-11 02:30:57,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:57,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:30:57,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:57,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:30:57,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-11 02:30:57,152 INFO L87 Difference]: Start difference. First operand 710 states and 1192 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, (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 02:30:57,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:30:57,293 INFO L93 Difference]: Finished difference Result 1307 states and 2189 transitions. [2024-10-11 02:30:57,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 02:30:57,294 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, (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 02:30:57,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:30:57,299 INFO L225 Difference]: With dead ends: 1307 [2024-10-11 02:30:57,300 INFO L226 Difference]: Without dead ends: 738 [2024-10-11 02:30:57,303 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-10-11 02:30:57,303 INFO L432 NwaCegarLoop]: 945 mSDtfsCounter, 100 mSDsluCounter, 4624 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 5569 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:30:57,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 5569 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:30:57,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2024-10-11 02:30:57,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 710. [2024-10-11 02:30:57,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 573 states have (on average 1.7155322862129145) internal successors, (983), 595 states have internal predecessors, (983), 104 states have call successors, (104), 30 states have call predecessors, (104), 32 states have return successors, (105), 98 states have call predecessors, (105), 101 states have call successors, (105) [2024-10-11 02:30:57,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 1192 transitions. [2024-10-11 02:30:57,327 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 1192 transitions. Word has length 83 [2024-10-11 02:30:57,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:30:57,327 INFO L471 AbstractCegarLoop]: Abstraction has 710 states and 1192 transitions. [2024-10-11 02:30:57,327 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, (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 02:30:57,327 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 1192 transitions. [2024-10-11 02:30:57,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-11 02:30:57,330 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:57,330 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 02:30:57,348 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 02:30:57,530 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 02:30:57,531 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:57,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:57,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1323786714, now seen corresponding path program 1 times [2024-10-11 02:30:57,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:57,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017091761] [2024-10-11 02:30:57,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:57,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:57,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:57,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:57,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:57,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:30:57,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:57,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:30:57,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:57,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:57,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:57,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:30:57,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:58,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-11 02:30:58,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:58,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:58,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:58,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-11 02:30:58,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:58,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 02:30:58,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:58,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 02:30:58,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:58,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 02:30:58,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:58,077 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 02:30:58,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:58,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017091761] [2024-10-11 02:30:58,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017091761] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:30:58,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657032776] [2024-10-11 02:30:58,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:58,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:58,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:30:58,080 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 02:30:58,082 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 02:30:58,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:58,370 INFO L255 TraceCheckSpWp]: Trace formula consists of 1480 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 02:30:58,373 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:30:58,466 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 02:30:58,466 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:30:58,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1657032776] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:58,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:30:58,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2024-10-11 02:30:58,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845368410] [2024-10-11 02:30:58,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:58,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 02:30:58,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:58,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 02:30:58,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2024-10-11 02:30:58,469 INFO L87 Difference]: Start difference. First operand 710 states and 1192 transitions. Second operand has 8 states, 7 states have (on average 8.0) internal successors, (56), 7 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 02:30:58,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:30:58,655 INFO L93 Difference]: Finished difference Result 1309 states and 2191 transitions. [2024-10-11 02:30:58,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 02:30:58,655 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 7 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 02:30:58,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:30:58,661 INFO L225 Difference]: With dead ends: 1309 [2024-10-11 02:30:58,661 INFO L226 Difference]: Without dead ends: 740 [2024-10-11 02:30:58,665 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2024-10-11 02:30:58,666 INFO L432 NwaCegarLoop]: 935 mSDtfsCounter, 96 mSDsluCounter, 5517 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 6452 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:30:58,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 6452 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:30:58,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2024-10-11 02:30:58,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 710. [2024-10-11 02:30:58,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 573 states have (on average 1.7155322862129145) internal successors, (983), 595 states have internal predecessors, (983), 104 states have call successors, (104), 30 states have call predecessors, (104), 32 states have return successors, (105), 98 states have call predecessors, (105), 101 states have call successors, (105) [2024-10-11 02:30:58,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 1192 transitions. [2024-10-11 02:30:58,692 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 1192 transitions. Word has length 95 [2024-10-11 02:30:58,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:30:58,692 INFO L471 AbstractCegarLoop]: Abstraction has 710 states and 1192 transitions. [2024-10-11 02:30:58,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 7 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 02:30:58,692 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 1192 transitions. [2024-10-11 02:30:58,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-11 02:30:58,695 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:58,695 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, 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 02:30:58,717 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 02:30:58,895 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 02:30:58,896 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:58,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:58,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1360344200, now seen corresponding path program 1 times [2024-10-11 02:30:58,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:58,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023747780] [2024-10-11 02:30:58,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:58,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:58,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:58,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:58,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:59,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:30:59,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:59,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:30:59,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:59,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:59,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:59,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 02:30:59,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:59,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-11 02:30:59,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:59,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:59,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:59,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-11 02:30:59,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:59,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 02:30:59,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:59,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 02:30:59,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:59,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 02:30:59,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:59,349 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-10-11 02:30:59,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:59,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023747780] [2024-10-11 02:30:59,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023747780] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:30:59,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563789295] [2024-10-11 02:30:59,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:59,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:59,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:30:59,354 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 02:30:59,357 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 02:30:59,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:59,637 INFO L255 TraceCheckSpWp]: Trace formula consists of 1484 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 02:30:59,639 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:30:59,667 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-10-11 02:30:59,667 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:30:59,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563789295] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:59,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:30:59,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-10-11 02:30:59,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660983598] [2024-10-11 02:30:59,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:59,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 02:30:59,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:59,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 02:30:59,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:30:59,669 INFO L87 Difference]: Start difference. First operand 710 states and 1192 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (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 02:30:59,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:30:59,750 INFO L93 Difference]: Finished difference Result 1351 states and 2270 transitions. [2024-10-11 02:30:59,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 02:30:59,751 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (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 95 [2024-10-11 02:30:59,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:30:59,758 INFO L225 Difference]: With dead ends: 1351 [2024-10-11 02:30:59,758 INFO L226 Difference]: Without dead ends: 710 [2024-10-11 02:30:59,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:30:59,762 INFO L432 NwaCegarLoop]: 946 mSDtfsCounter, 2 mSDsluCounter, 1883 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2829 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:30:59,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2829 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:30:59,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2024-10-11 02:30:59,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 710. [2024-10-11 02:30:59,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 573 states have (on average 1.7102966841186737) internal successors, (980), 595 states have internal predecessors, (980), 104 states have call successors, (104), 30 states have call predecessors, (104), 32 states have return successors, (105), 98 states have call predecessors, (105), 101 states have call successors, (105) [2024-10-11 02:30:59,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 1189 transitions. [2024-10-11 02:30:59,786 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 1189 transitions. Word has length 95 [2024-10-11 02:30:59,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:30:59,786 INFO L471 AbstractCegarLoop]: Abstraction has 710 states and 1189 transitions. [2024-10-11 02:30:59,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (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 02:30:59,787 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 1189 transitions. [2024-10-11 02:30:59,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-11 02:30:59,789 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:59,790 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, 1, 1, 1, 1] [2024-10-11 02:30:59,811 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-10-11 02:30:59,990 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 02:30:59,990 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:59,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:59,991 INFO L85 PathProgramCache]: Analyzing trace with hash -2121811524, now seen corresponding path program 1 times [2024-10-11 02:30:59,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:59,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926036741] [2024-10-11 02:30:59,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:59,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:31:00,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:00,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:00,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:00,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:31:00,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:00,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:31:00,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:00,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:00,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:00,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:31:00,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:00,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 02:31:00,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:00,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 02:31:00,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:00,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 02:31:00,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:00,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-11 02:31:00,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:00,191 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 02:31:00,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:31:00,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926036741] [2024-10-11 02:31:00,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926036741] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:31:00,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753550602] [2024-10-11 02:31:00,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:00,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:00,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:31:00,194 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 02:31:00,195 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 02:31:00,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:00,432 INFO L255 TraceCheckSpWp]: Trace formula consists of 1245 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 02:31:00,435 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:31:00,493 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 02:31:00,493 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:31:00,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [753550602] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:31:00,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:31:00,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 11 [2024-10-11 02:31:00,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815370699] [2024-10-11 02:31:00,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:31:00,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 02:31:00,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:31:00,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 02:31:00,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-10-11 02:31:00,495 INFO L87 Difference]: Start difference. First operand 710 states and 1189 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, (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 02:31:00,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:31:00,710 INFO L93 Difference]: Finished difference Result 1301 states and 2175 transitions. [2024-10-11 02:31:00,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 02:31:00,712 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, (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 84 [2024-10-11 02:31:00,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:31:00,718 INFO L225 Difference]: With dead ends: 1301 [2024-10-11 02:31:00,718 INFO L226 Difference]: Without dead ends: 732 [2024-10-11 02:31:00,721 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 97 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 02:31:00,722 INFO L432 NwaCegarLoop]: 932 mSDtfsCounter, 106 mSDsluCounter, 5490 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 6422 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:31:00,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 6422 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:31:00,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2024-10-11 02:31:00,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 710. [2024-10-11 02:31:00,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 573 states have (on average 1.7102966841186737) internal successors, (980), 595 states have internal predecessors, (980), 104 states have call successors, (104), 30 states have call predecessors, (104), 32 states have return successors, (105), 98 states have call predecessors, (105), 101 states have call successors, (105) [2024-10-11 02:31:00,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 1189 transitions. [2024-10-11 02:31:00,756 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 1189 transitions. Word has length 84 [2024-10-11 02:31:00,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:31:00,759 INFO L471 AbstractCegarLoop]: Abstraction has 710 states and 1189 transitions. [2024-10-11 02:31:00,759 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, (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 02:31:00,759 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 1189 transitions. [2024-10-11 02:31:00,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-11 02:31:00,762 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:31:00,763 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 02:31:00,782 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-10-11 02:31:00,963 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 02:31:00,964 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:31:00,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:31:00,965 INFO L85 PathProgramCache]: Analyzing trace with hash -353947167, now seen corresponding path program 1 times [2024-10-11 02:31:00,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:31:00,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340366892] [2024-10-11 02:31:00,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:00,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:31:00,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:01,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:01,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:01,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:31:01,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:01,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:31:01,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:01,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:01,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:01,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:31:01,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:01,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 02:31:01,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:01,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:01,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:01,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 02:31:01,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:01,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 02:31:01,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:01,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-11 02:31:01,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:01,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 02:31:01,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:01,448 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 02:31:01,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:31:01,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340366892] [2024-10-11 02:31:01,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340366892] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:31:01,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1776587683] [2024-10-11 02:31:01,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:01,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:01,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:31:01,450 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 02:31:01,451 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 02:31:01,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:01,743 INFO L255 TraceCheckSpWp]: Trace formula consists of 1482 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 02:31:01,747 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:31:01,967 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 02:31:01,967 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:31:01,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1776587683] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:31:01,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:31:01,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2024-10-11 02:31:01,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22837967] [2024-10-11 02:31:01,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:31:01,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 02:31:01,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:31:01,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 02:31:01,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-10-11 02:31:01,969 INFO L87 Difference]: Start difference. First operand 710 states and 1189 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 02:31:04,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:31:04,980 INFO L93 Difference]: Finished difference Result 2456 states and 4147 transitions. [2024-10-11 02:31:04,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 02:31:04,981 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 02:31:04,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:31:04,993 INFO L225 Difference]: With dead ends: 2456 [2024-10-11 02:31:04,993 INFO L226 Difference]: Without dead ends: 1891 [2024-10-11 02:31:04,997 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-10-11 02:31:04,997 INFO L432 NwaCegarLoop]: 577 mSDtfsCounter, 3717 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 3680 mSolverCounterSat, 574 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3911 SdHoareTripleChecker+Valid, 1358 SdHoareTripleChecker+Invalid, 4254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 574 IncrementalHoareTripleChecker+Valid, 3680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-10-11 02:31:04,997 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3911 Valid, 1358 Invalid, 4254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [574 Valid, 3680 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-10-11 02:31:05,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1891 states. [2024-10-11 02:31:05,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1891 to 1724. [2024-10-11 02:31:05,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1724 states, 1385 states have (on average 1.7010830324909747) internal successors, (2356), 1423 states have internal predecessors, (2356), 269 states have call successors, (269), 66 states have call predecessors, (269), 69 states have return successors, (290), 249 states have call predecessors, (290), 265 states have call successors, (290) [2024-10-11 02:31:05,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1724 states to 1724 states and 2915 transitions. [2024-10-11 02:31:05,069 INFO L78 Accepts]: Start accepts. Automaton has 1724 states and 2915 transitions. Word has length 97 [2024-10-11 02:31:05,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:31:05,070 INFO L471 AbstractCegarLoop]: Abstraction has 1724 states and 2915 transitions. [2024-10-11 02:31:05,070 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 02:31:05,070 INFO L276 IsEmpty]: Start isEmpty. Operand 1724 states and 2915 transitions. [2024-10-11 02:31:05,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-11 02:31:05,075 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:31:05,075 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:31:05,094 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 02:31:05,275 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 02:31:05,276 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:31:05,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:31:05,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1565940516, now seen corresponding path program 1 times [2024-10-11 02:31:05,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:31:05,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310134734] [2024-10-11 02:31:05,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:05,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:31:05,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:05,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:05,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:05,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:31:05,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:05,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:31:05,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:05,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:05,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:05,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:31:05,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:05,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 02:31:05,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:05,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 02:31:05,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:05,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:05,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:05,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-11 02:31:05,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:05,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 02:31:05,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:05,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-11 02:31:05,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:05,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-11 02:31:05,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:05,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-11 02:31:05,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:05,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 02:31:05,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:05,791 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 02:31:05,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:31:05,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310134734] [2024-10-11 02:31:05,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310134734] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:31:05,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727485929] [2024-10-11 02:31:05,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:05,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:05,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:31:05,793 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 02:31:05,795 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 02:31:06,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:06,100 INFO L255 TraceCheckSpWp]: Trace formula consists of 1583 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 02:31:06,107 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:31:06,131 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-11 02:31:06,131 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:31:06,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727485929] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:31:06,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:31:06,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-10-11 02:31:06,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142251805] [2024-10-11 02:31:06,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:31:06,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 02:31:06,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:31:06,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 02:31:06,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-11 02:31:06,135 INFO L87 Difference]: Start difference. First operand 1724 states and 2915 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-11 02:31:06,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:31:06,276 INFO L93 Difference]: Finished difference Result 4865 states and 8322 transitions. [2024-10-11 02:31:06,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 02:31:06,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 121 [2024-10-11 02:31:06,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:31:06,301 INFO L225 Difference]: With dead ends: 4865 [2024-10-11 02:31:06,301 INFO L226 Difference]: Without dead ends: 3287 [2024-10-11 02:31:06,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-11 02:31:06,312 INFO L432 NwaCegarLoop]: 972 mSDtfsCounter, 969 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 969 SdHoareTripleChecker+Valid, 1893 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:31:06,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [969 Valid, 1893 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:31:06,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3287 states. [2024-10-11 02:31:06,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3287 to 3268. [2024-10-11 02:31:06,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3268 states, 2623 states have (on average 1.700343118566527) internal successors, (4460), 2690 states have internal predecessors, (4460), 515 states have call successors, (515), 123 states have call predecessors, (515), 129 states have return successors, (591), 484 states have call predecessors, (591), 509 states have call successors, (591) [2024-10-11 02:31:06,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3268 states to 3268 states and 5566 transitions. [2024-10-11 02:31:06,476 INFO L78 Accepts]: Start accepts. Automaton has 3268 states and 5566 transitions. Word has length 121 [2024-10-11 02:31:06,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:31:06,477 INFO L471 AbstractCegarLoop]: Abstraction has 3268 states and 5566 transitions. [2024-10-11 02:31:06,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-11 02:31:06,477 INFO L276 IsEmpty]: Start isEmpty. Operand 3268 states and 5566 transitions. [2024-10-11 02:31:06,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-10-11 02:31:06,484 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:31:06,484 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, 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 02:31:06,503 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-10-11 02:31:06,684 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 02:31:06,685 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:31:06,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:31:06,685 INFO L85 PathProgramCache]: Analyzing trace with hash 247294305, now seen corresponding path program 1 times [2024-10-11 02:31:06,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:31:06,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478024090] [2024-10-11 02:31:06,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:06,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:31:06,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:06,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:06,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:06,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:31:06,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:06,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:31:06,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:06,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:06,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:06,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:31:06,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:07,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 02:31:07,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:07,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:07,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:07,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 02:31:07,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:07,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:07,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:07,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-11 02:31:07,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:07,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 02:31:07,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:07,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-11 02:31:07,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:07,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 02:31:07,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:07,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 02:31:07,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:07,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:07,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:07,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-11 02:31:07,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:07,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 02:31:07,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:07,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-11 02:31:07,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:07,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-11 02:31:07,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:07,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-11 02:31:07,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:07,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-10-11 02:31:07,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:07,541 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-10-11 02:31:07,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:31:07,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478024090] [2024-10-11 02:31:07,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478024090] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:31:07,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087727231] [2024-10-11 02:31:07,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:07,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:07,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:31:07,544 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 02:31:07,545 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 02:31:07,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:07,898 INFO L255 TraceCheckSpWp]: Trace formula consists of 2158 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 02:31:07,902 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:31:08,006 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-10-11 02:31:08,006 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:31:08,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2087727231] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:31:08,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:31:08,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 17 [2024-10-11 02:31:08,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086365166] [2024-10-11 02:31:08,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:31:08,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 02:31:08,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:31:08,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 02:31:08,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2024-10-11 02:31:08,008 INFO L87 Difference]: Start difference. First operand 3268 states and 5566 transitions. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 5 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2024-10-11 02:31:10,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:31:10,449 INFO L93 Difference]: Finished difference Result 10053 states and 17505 transitions. [2024-10-11 02:31:10,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 02:31:10,449 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 5 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) Word has length 169 [2024-10-11 02:31:10,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:31:10,498 INFO L225 Difference]: With dead ends: 10053 [2024-10-11 02:31:10,499 INFO L226 Difference]: Without dead ends: 6930 [2024-10-11 02:31:10,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=398, Unknown=0, NotChecked=0, Total=462 [2024-10-11 02:31:10,522 INFO L432 NwaCegarLoop]: 320 mSDtfsCounter, 2217 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 3092 mSolverCounterSat, 374 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2328 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 3466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 374 IncrementalHoareTripleChecker+Valid, 3092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:31:10,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2328 Valid, 1064 Invalid, 3466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [374 Valid, 3092 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-11 02:31:10,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6930 states. [2024-10-11 02:31:10,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6930 to 5668. [2024-10-11 02:31:10,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5668 states, 4496 states have (on average 1.6697064056939501) internal successors, (7507), 4584 states have internal predecessors, (7507), 928 states have call successors, (928), 208 states have call predecessors, (928), 243 states have return successors, (1276), 897 states have call predecessors, (1276), 918 states have call successors, (1276) [2024-10-11 02:31:10,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5668 states to 5668 states and 9711 transitions. [2024-10-11 02:31:10,846 INFO L78 Accepts]: Start accepts. Automaton has 5668 states and 9711 transitions. Word has length 169 [2024-10-11 02:31:10,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:31:10,846 INFO L471 AbstractCegarLoop]: Abstraction has 5668 states and 9711 transitions. [2024-10-11 02:31:10,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 5 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2024-10-11 02:31:10,847 INFO L276 IsEmpty]: Start isEmpty. Operand 5668 states and 9711 transitions. [2024-10-11 02:31:10,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-11 02:31:10,900 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:31:10,900 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:31:10,923 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 02:31:11,100 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 02:31:11,101 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:31:11,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:31:11,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1638327074, now seen corresponding path program 1 times [2024-10-11 02:31:11,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:31:11,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625651253] [2024-10-11 02:31:11,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:11,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:31:11,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:11,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:11,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:11,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:31:11,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:11,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:31:11,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:11,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:11,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:11,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:31:11,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:11,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 02:31:11,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:11,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 02:31:11,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:11,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:11,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:11,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-11 02:31:11,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:11,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 02:31:11,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:11,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-11 02:31:11,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:11,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-11 02:31:11,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:11,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-11 02:31:11,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:11,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 02:31:11,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:11,664 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 02:31:11,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:31:11,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625651253] [2024-10-11 02:31:11,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625651253] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:31:11,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324044362] [2024-10-11 02:31:11,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:11,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:11,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:31:11,667 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 02:31:11,668 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 02:31:11,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:11,964 INFO L255 TraceCheckSpWp]: Trace formula consists of 1584 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 02:31:11,967 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:31:12,049 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-11 02:31:12,049 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:31:12,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [324044362] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:31:12,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:31:12,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 14 [2024-10-11 02:31:12,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056033626] [2024-10-11 02:31:12,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:31:12,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 02:31:12,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:31:12,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 02:31:12,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2024-10-11 02:31:12,051 INFO L87 Difference]: Start difference. First operand 5668 states and 9711 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-11 02:31:12,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:31:12,225 INFO L93 Difference]: Finished difference Result 9142 states and 15562 transitions. [2024-10-11 02:31:12,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 02:31:12,226 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 121 [2024-10-11 02:31:12,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:31:12,261 INFO L225 Difference]: With dead ends: 9142 [2024-10-11 02:31:12,261 INFO L226 Difference]: Without dead ends: 5362 [2024-10-11 02:31:12,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2024-10-11 02:31:12,282 INFO L432 NwaCegarLoop]: 1030 mSDtfsCounter, 922 mSDsluCounter, 1565 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 2595 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:31:12,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [922 Valid, 2595 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 02:31:12,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5362 states. [2024-10-11 02:31:12,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5362 to 5332. [2024-10-11 02:31:12,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5332 states, 4239 states have (on average 1.6678461901391837) internal successors, (7070), 4314 states have internal predecessors, (7070), 865 states have call successors, (865), 195 states have call predecessors, (865), 227 states have return successors, (1173), 844 states have call predecessors, (1173), 855 states have call successors, (1173) [2024-10-11 02:31:12,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5332 states to 5332 states and 9108 transitions. [2024-10-11 02:31:12,543 INFO L78 Accepts]: Start accepts. Automaton has 5332 states and 9108 transitions. Word has length 121 [2024-10-11 02:31:12,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:31:12,543 INFO L471 AbstractCegarLoop]: Abstraction has 5332 states and 9108 transitions. [2024-10-11 02:31:12,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-11 02:31:12,544 INFO L276 IsEmpty]: Start isEmpty. Operand 5332 states and 9108 transitions. [2024-10-11 02:31:12,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-11 02:31:12,551 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:31:12,551 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:31:12,571 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 02:31:12,752 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 02:31:12,753 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:31:12,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:31:12,753 INFO L85 PathProgramCache]: Analyzing trace with hash 377225537, now seen corresponding path program 1 times [2024-10-11 02:31:12,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:31:12,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604480884] [2024-10-11 02:31:12,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:12,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:31:12,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:12,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:12,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:12,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:31:12,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:12,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:31:12,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:12,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:12,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:12,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:31:12,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:13,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 02:31:13,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:13,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 02:31:13,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:13,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:13,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:13,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-11 02:31:13,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:13,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 02:31:13,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:13,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-11 02:31:13,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:13,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-11 02:31:13,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:13,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 02:31:13,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:13,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-11 02:31:13,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:13,296 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 02:31:13,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:31:13,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604480884] [2024-10-11 02:31:13,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604480884] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:31:13,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821376648] [2024-10-11 02:31:13,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:13,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:13,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:31:13,298 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 02:31:13,299 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 02:31:13,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:13,575 INFO L255 TraceCheckSpWp]: Trace formula consists of 1584 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 02:31:13,577 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:31:13,596 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-11 02:31:13,597 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:31:13,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821376648] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:31:13,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:31:13,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 12 [2024-10-11 02:31:13,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833036134] [2024-10-11 02:31:13,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:31:13,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 02:31:13,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:31:13,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 02:31:13,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-10-11 02:31:13,599 INFO L87 Difference]: Start difference. First operand 5332 states and 9108 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-11 02:31:13,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:31:13,921 INFO L93 Difference]: Finished difference Result 10646 states and 18209 transitions. [2024-10-11 02:31:13,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 02:31:13,922 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 122 [2024-10-11 02:31:13,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:31:13,957 INFO L225 Difference]: With dead ends: 10646 [2024-10-11 02:31:13,957 INFO L226 Difference]: Without dead ends: 5298 [2024-10-11 02:31:13,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-10-11 02:31:13,982 INFO L432 NwaCegarLoop]: 943 mSDtfsCounter, 7 mSDsluCounter, 1878 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2821 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:31:13,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2821 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:31:13,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5298 states. [2024-10-11 02:31:14,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5298 to 5298. [2024-10-11 02:31:14,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5298 states, 4208 states have (on average 1.663022813688213) internal successors, (6998), 4281 states have internal predecessors, (6998), 864 states have call successors, (864), 195 states have call predecessors, (864), 225 states have return successors, (1170), 843 states have call predecessors, (1170), 854 states have call successors, (1170) [2024-10-11 02:31:14,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5298 states to 5298 states and 9032 transitions. [2024-10-11 02:31:14,215 INFO L78 Accepts]: Start accepts. Automaton has 5298 states and 9032 transitions. Word has length 122 [2024-10-11 02:31:14,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:31:14,215 INFO L471 AbstractCegarLoop]: Abstraction has 5298 states and 9032 transitions. [2024-10-11 02:31:14,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-11 02:31:14,215 INFO L276 IsEmpty]: Start isEmpty. Operand 5298 states and 9032 transitions. [2024-10-11 02:31:14,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-10-11 02:31:14,223 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:31:14,224 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, 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 02:31:14,244 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 02:31:14,424 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 02:31:14,424 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:31:14,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:31:14,425 INFO L85 PathProgramCache]: Analyzing trace with hash -2119945902, now seen corresponding path program 1 times [2024-10-11 02:31:14,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:31:14,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326930452] [2024-10-11 02:31:14,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:14,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:31:14,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:14,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:14,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:14,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:31:14,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:14,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 02:31:14,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:14,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:14,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:14,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:31:14,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 02:31:15,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:15,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:31:15,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:15,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-11 02:31:15,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 02:31:15,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-11 02:31:15,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-11 02:31:15,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-11 02:31:15,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:15,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-11 02:31:15,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 02:31:15,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-11 02:31:15,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-11 02:31:15,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-11 02:31:15,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-11 02:31:15,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,379 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-10-11 02:31:15,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:31:15,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326930452] [2024-10-11 02:31:15,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326930452] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:31:15,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644749012] [2024-10-11 02:31:15,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:15,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:31:15,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:31:15,383 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 02:31:15,384 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 02:31:15,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,750 INFO L255 TraceCheckSpWp]: Trace formula consists of 2156 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 02:31:15,754 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:31:15,845 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 30 proven. 5 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-11 02:31:15,845 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 02:31:16,137 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 24 proven. 5 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-10-11 02:31:16,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644749012] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 02:31:16,138 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 02:31:16,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 17 [2024-10-11 02:31:16,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022203036] [2024-10-11 02:31:16,138 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 02:31:16,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-11 02:31:16,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:31:16,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-11 02:31:16,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2024-10-11 02:31:16,141 INFO L87 Difference]: Start difference. First operand 5298 states and 9032 transitions. Second operand has 17 states, 16 states have (on average 8.5) internal successors, (136), 12 states have internal predecessors, (136), 7 states have call successors, (38), 9 states have call predecessors, (38), 6 states have return successors, (35), 8 states have call predecessors, (35), 7 states have call successors, (35) [2024-10-11 02:31:48,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:31:48,817 INFO L93 Difference]: Finished difference Result 28816 states and 53124 transitions. [2024-10-11 02:31:48,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2024-10-11 02:31:48,818 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 8.5) internal successors, (136), 12 states have internal predecessors, (136), 7 states have call successors, (38), 9 states have call predecessors, (38), 6 states have return successors, (35), 8 states have call predecessors, (35), 7 states have call successors, (35) Word has length 172 [2024-10-11 02:31:48,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:31:48,978 INFO L225 Difference]: With dead ends: 28816 [2024-10-11 02:31:48,978 INFO L226 Difference]: Without dead ends: 23546 [2024-10-11 02:31:49,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 493 GetRequests, 414 SyntacticMatches, 5 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1892 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=971, Invalid=4729, Unknown=0, NotChecked=0, Total=5700 [2024-10-11 02:31:49,042 INFO L432 NwaCegarLoop]: 824 mSDtfsCounter, 9168 mSDsluCounter, 7247 mSDsCounter, 0 mSdLazyCounter, 20028 mSolverCounterSat, 3091 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9286 SdHoareTripleChecker+Valid, 8071 SdHoareTripleChecker+Invalid, 23119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3091 IncrementalHoareTripleChecker+Valid, 20028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.4s IncrementalHoareTripleChecker+Time [2024-10-11 02:31:49,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9286 Valid, 8071 Invalid, 23119 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3091 Valid, 20028 Invalid, 0 Unknown, 0 Unchecked, 21.4s Time] [2024-10-11 02:31:49,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23546 states. [2024-10-11 02:31:52,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23546 to 15143. [2024-10-11 02:31:52,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15143 states, 11898 states have (on average 1.6114473020675744) internal successors, (19173), 12127 states have internal predecessors, (19173), 2518 states have call successors, (2518), 625 states have call predecessors, (2518), 726 states have return successors, (4136), 2456 states have call predecessors, (4136), 2496 states have call successors, (4136) [2024-10-11 02:31:52,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15143 states to 15143 states and 25827 transitions. [2024-10-11 02:31:52,251 INFO L78 Accepts]: Start accepts. Automaton has 15143 states and 25827 transitions. Word has length 172 [2024-10-11 02:31:52,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:31:52,252 INFO L471 AbstractCegarLoop]: Abstraction has 15143 states and 25827 transitions. [2024-10-11 02:31:52,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 8.5) internal successors, (136), 12 states have internal predecessors, (136), 7 states have call successors, (38), 9 states have call predecessors, (38), 6 states have return successors, (35), 8 states have call predecessors, (35), 7 states have call successors, (35) [2024-10-11 02:31:52,253 INFO L276 IsEmpty]: Start isEmpty. Operand 15143 states and 25827 transitions. [2024-10-11 02:31:52,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-11 02:31:52,258 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:31:52,259 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:31:52,280 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 02:31:52,459 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 02:31:52,460 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:31:52,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:31:52,460 INFO L85 PathProgramCache]: Analyzing trace with hash 823173347, now seen corresponding path program 1 times [2024-10-11 02:31:52,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:31:52,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759296444] [2024-10-11 02:31:52,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:52,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:31:52,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:52,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:52,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:52,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:31:52,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:52,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 02:31:52,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:52,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:52,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:52,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:31:52,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:52,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 02:31:52,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:53,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 02:31:53,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:53,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:53,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:53,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-11 02:31:53,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:53,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 02:31:53,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:53,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-11 02:31:53,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:53,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 02:31:53,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:53,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-11 02:31:53,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:53,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 02:31:53,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:53,046 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-11 02:31:53,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:31:53,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759296444] [2024-10-11 02:31:53,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759296444] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:31:53,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:31:53,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 02:31:53,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259412902] [2024-10-11 02:31:53,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:31:53,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:31:53,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:31:53,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:31:53,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:31:53,048 INFO L87 Difference]: Start difference. First operand 15143 states and 25827 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14)