./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-19.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-19.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a696e6551ad1205554c4678998c1625e3c8a3a93c97ae7f8e7897edb0d3d5ceb --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 09:04:38,425 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 09:04:38,488 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 09:04:38,493 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 09:04:38,493 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 09:04:38,517 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 09:04:38,517 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 09:04:38,518 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 09:04:38,518 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 09:04:38,519 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 09:04:38,519 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 09:04:38,520 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 09:04:38,520 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 09:04:38,520 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 09:04:38,522 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 09:04:38,522 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 09:04:38,522 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 09:04:38,523 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 09:04:38,523 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 09:04:38,523 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 09:04:38,523 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 09:04:38,524 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 09:04:38,524 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 09:04:38,524 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 09:04:38,525 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 09:04:38,525 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 09:04:38,525 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 09:04:38,525 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 09:04:38,525 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 09:04:38,526 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 09:04:38,526 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 09:04:38,526 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 09:04:38,526 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 09:04:38,527 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 09:04:38,527 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 09:04:38,527 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 09:04:38,527 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 09:04:38,528 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 09:04:38,528 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 09:04:38,528 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 09:04:38,528 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 09:04:38,528 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 09:04:38,528 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a696e6551ad1205554c4678998c1625e3c8a3a93c97ae7f8e7897edb0d3d5ceb [2024-11-20 09:04:38,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 09:04:38,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 09:04:38,754 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 09:04:38,754 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 09:04:38,755 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 09:04:38,756 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-19.i [2024-11-20 09:04:39,974 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 09:04:40,130 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 09:04:40,131 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-19.i [2024-11-20 09:04:40,139 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df5718db0/48fc5362d41049478482cb2a23a91100/FLAG00277987a [2024-11-20 09:04:40,150 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df5718db0/48fc5362d41049478482cb2a23a91100 [2024-11-20 09:04:40,152 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 09:04:40,153 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 09:04:40,154 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 09:04:40,154 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 09:04:40,158 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 09:04:40,159 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:04:40" (1/1) ... [2024-11-20 09:04:40,159 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f3fcd28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:40, skipping insertion in model container [2024-11-20 09:04:40,160 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:04:40" (1/1) ... [2024-11-20 09:04:40,184 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 09:04:40,312 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-19.i[917,930] [2024-11-20 09:04:40,358 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 09:04:40,367 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 09:04:40,379 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-19.i[917,930] [2024-11-20 09:04:40,402 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 09:04:40,422 INFO L204 MainTranslator]: Completed translation [2024-11-20 09:04:40,422 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:40 WrapperNode [2024-11-20 09:04:40,422 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 09:04:40,423 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 09:04:40,424 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 09:04:40,424 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 09:04:40,429 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:40" (1/1) ... [2024-11-20 09:04:40,441 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:40" (1/1) ... [2024-11-20 09:04:40,492 INFO L138 Inliner]: procedures = 27, calls = 153, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 473 [2024-11-20 09:04:40,492 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 09:04:40,493 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 09:04:40,493 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 09:04:40,493 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 09:04:40,504 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:40" (1/1) ... [2024-11-20 09:04:40,504 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:40" (1/1) ... [2024-11-20 09:04:40,510 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:40" (1/1) ... [2024-11-20 09:04:40,536 INFO L175 MemorySlicer]: Split 125 memory accesses to 2 slices as follows [2, 123]. 98 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 28 writes are split as follows [0, 28]. [2024-11-20 09:04:40,537 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:40" (1/1) ... [2024-11-20 09:04:40,537 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:40" (1/1) ... [2024-11-20 09:04:40,548 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:40" (1/1) ... [2024-11-20 09:04:40,551 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:40" (1/1) ... [2024-11-20 09:04:40,552 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:40" (1/1) ... [2024-11-20 09:04:40,554 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:40" (1/1) ... [2024-11-20 09:04:40,562 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 09:04:40,562 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 09:04:40,562 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 09:04:40,562 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 09:04:40,563 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:40" (1/1) ... [2024-11-20 09:04:40,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 09:04:40,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:04:40,597 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 09:04:40,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 09:04:40,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 09:04:40,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-20 09:04:40,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-20 09:04:40,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 09:04:40,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 09:04:40,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 09:04:40,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 09:04:40,639 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 09:04:40,640 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 09:04:40,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 09:04:40,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 09:04:40,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 09:04:40,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 09:04:40,736 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 09:04:40,737 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 09:04:41,084 INFO L? ?]: Removed 116 outVars from TransFormulas that were not future-live. [2024-11-20 09:04:41,084 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 09:04:41,097 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 09:04:41,099 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 09:04:41,099 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:04:41 BoogieIcfgContainer [2024-11-20 09:04:41,100 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 09:04:41,101 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 09:04:41,101 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 09:04:41,104 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 09:04:41,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:04:40" (1/3) ... [2024-11-20 09:04:41,105 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@789c98a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:04:41, skipping insertion in model container [2024-11-20 09:04:41,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:40" (2/3) ... [2024-11-20 09:04:41,105 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@789c98a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:04:41, skipping insertion in model container [2024-11-20 09:04:41,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:04:41" (3/3) ... [2024-11-20 09:04:41,106 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-19.i [2024-11-20 09:04:41,118 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 09:04:41,118 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 09:04:41,165 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 09:04:41,170 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;@cfe4ce3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 09:04:41,171 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 09:04:41,174 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 82 states have (on average 1.3902439024390243) internal successors, (114), 83 states have internal predecessors, (114), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-20 09:04:41,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-20 09:04:41,188 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:04:41,189 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:04:41,190 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:04:41,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:04:41,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1029236887, now seen corresponding path program 1 times [2024-11-20 09:04:41,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:04:41,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551481230] [2024-11-20 09:04:41,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:04:41,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:04:41,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:41,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:04:41,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:41,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:04:41,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:41,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:04:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:41,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:04:41,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:41,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:04:41,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:41,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:04:41,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:41,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:04:41,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:41,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:04:41,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:41,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:04:41,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:41,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:04:41,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:41,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:04:41,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:41,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:04:41,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:41,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:04:41,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:41,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:04:41,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:41,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:04:41,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:41,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:04:41,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:41,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:04:41,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:41,559 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 09:04:41,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:04:41,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551481230] [2024-11-20 09:04:41,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551481230] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:04:41,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:04:41,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 09:04:41,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856339726] [2024-11-20 09:04:41,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:04:41,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 09:04:41,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:04:41,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 09:04:41,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 09:04:41,592 INFO L87 Difference]: Start difference. First operand has 102 states, 82 states have (on average 1.3902439024390243) internal successors, (114), 83 states have internal predecessors, (114), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-20 09:04:41,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:04:41,623 INFO L93 Difference]: Finished difference Result 197 states and 307 transitions. [2024-11-20 09:04:41,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 09:04:41,625 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 132 [2024-11-20 09:04:41,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:04:41,631 INFO L225 Difference]: With dead ends: 197 [2024-11-20 09:04:41,632 INFO L226 Difference]: Without dead ends: 98 [2024-11-20 09:04:41,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 09:04:41,637 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 09:04:41,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 09:04:41,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-20 09:04:41,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-11-20 09:04:41,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 79 states have (on average 1.3291139240506329) internal successors, (105), 79 states have internal predecessors, (105), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-20 09:04:41,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 139 transitions. [2024-11-20 09:04:41,672 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 139 transitions. Word has length 132 [2024-11-20 09:04:41,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:04:41,673 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 139 transitions. [2024-11-20 09:04:41,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-20 09:04:41,673 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 139 transitions. [2024-11-20 09:04:41,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-20 09:04:41,676 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:04:41,676 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:04:41,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 09:04:41,677 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:04:41,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:04:41,677 INFO L85 PathProgramCache]: Analyzing trace with hash 451503243, now seen corresponding path program 1 times [2024-11-20 09:04:41,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:04:41,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203012196] [2024-11-20 09:04:41,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:04:41,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:04:41,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:41,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:04:41,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:41,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:04:41,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:41,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:04:41,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:41,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:04:41,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:41,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:04:41,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:41,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:04:41,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:41,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:04:41,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:41,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:04:41,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:41,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:04:41,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:41,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:04:41,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:41,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:04:41,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:41,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:04:41,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:41,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:04:41,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:41,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:04:41,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:41,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:04:42,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:42,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:04:42,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:42,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:04:42,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:42,007 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 09:04:42,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:04:42,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203012196] [2024-11-20 09:04:42,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203012196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:04:42,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:04:42,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 09:04:42,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98160874] [2024-11-20 09:04:42,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:04:42,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 09:04:42,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:04:42,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 09:04:42,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 09:04:42,011 INFO L87 Difference]: Start difference. First operand 98 states and 139 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 09:04:42,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:04:42,054 INFO L93 Difference]: Finished difference Result 196 states and 279 transitions. [2024-11-20 09:04:42,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 09:04:42,056 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), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 132 [2024-11-20 09:04:42,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:04:42,059 INFO L225 Difference]: With dead ends: 196 [2024-11-20 09:04:42,059 INFO L226 Difference]: Without dead ends: 101 [2024-11-20 09:04:42,060 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 09:04:42,061 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 1 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 09:04:42,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 399 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 09:04:42,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-20 09:04:42,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 100. [2024-11-20 09:04:42,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 81 states have (on average 1.3209876543209877) internal successors, (107), 81 states have internal predecessors, (107), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-20 09:04:42,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 141 transitions. [2024-11-20 09:04:42,075 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 141 transitions. Word has length 132 [2024-11-20 09:04:42,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:04:42,076 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 141 transitions. [2024-11-20 09:04:42,076 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), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 09:04:42,076 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 141 transitions. [2024-11-20 09:04:42,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-20 09:04:42,078 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:04:42,078 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:04:42,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 09:04:42,081 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:04:42,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:04:42,082 INFO L85 PathProgramCache]: Analyzing trace with hash 453350285, now seen corresponding path program 1 times [2024-11-20 09:04:42,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:04:42,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646775507] [2024-11-20 09:04:42,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:04:42,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:04:42,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:44,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:04:44,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:44,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:04:44,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:44,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:04:44,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:44,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:04:44,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:44,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:04:44,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:44,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:04:44,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:44,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:04:44,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:44,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:04:44,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:44,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:04:44,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:44,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:04:44,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:44,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:04:44,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:44,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:04:44,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:44,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:04:44,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:44,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:04:44,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:44,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:04:44,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:44,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:04:44,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:44,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:04:44,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:44,683 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 21 proven. 27 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-20 09:04:44,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:04:44,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646775507] [2024-11-20 09:04:44,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646775507] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 09:04:44,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724387491] [2024-11-20 09:04:44,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:04:44,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 09:04:44,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:04:44,686 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 09:04:44,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 09:04:44,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:44,845 INFO L255 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-20 09:04:44,861 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 09:04:45,573 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 43 [2024-11-20 09:04:45,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 09:04:45,581 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2024-11-20 09:04:45,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 09:04:45,591 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2024-11-20 09:04:45,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 09:04:45,798 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 195 treesize of output 115 [2024-11-20 09:04:45,844 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 3 proven. 45 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-20 09:04:45,844 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 09:04:45,996 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-20 09:04:45,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 208 treesize of output 1 [2024-11-20 09:04:46,056 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 09:04:46,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1724387491] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-20 09:04:46,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-20 09:04:46,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [17, 8] total 24 [2024-11-20 09:04:46,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296202051] [2024-11-20 09:04:46,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:04:46,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 09:04:46,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:04:46,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 09:04:46,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=482, Unknown=0, NotChecked=0, Total=552 [2024-11-20 09:04:46,059 INFO L87 Difference]: Start difference. First operand 100 states and 141 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 09:04:46,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:04:46,330 INFO L93 Difference]: Finished difference Result 242 states and 340 transitions. [2024-11-20 09:04:46,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 09:04:46,330 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 132 [2024-11-20 09:04:46,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:04:46,332 INFO L225 Difference]: With dead ends: 242 [2024-11-20 09:04:46,332 INFO L226 Difference]: Without dead ends: 145 [2024-11-20 09:04:46,333 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=82, Invalid=620, Unknown=0, NotChecked=0, Total=702 [2024-11-20 09:04:46,333 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 49 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 09:04:46,334 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 588 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 09:04:46,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-20 09:04:46,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 109. [2024-11-20 09:04:46,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 90 states have (on average 1.3222222222222222) internal successors, (119), 90 states have internal predecessors, (119), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-20 09:04:46,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 153 transitions. [2024-11-20 09:04:46,352 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 153 transitions. Word has length 132 [2024-11-20 09:04:46,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:04:46,353 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 153 transitions. [2024-11-20 09:04:46,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 09:04:46,353 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 153 transitions. [2024-11-20 09:04:46,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-20 09:04:46,355 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:04:46,355 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:04:46,364 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 09:04:46,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 09:04:46,556 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:04:46,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:04:46,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1134997617, now seen corresponding path program 1 times [2024-11-20 09:04:46,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:04:46,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781835360] [2024-11-20 09:04:46,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:04:46,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:04:46,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:46,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:04:46,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:46,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:04:46,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:46,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:04:46,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:46,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:04:46,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:46,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:04:46,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:46,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:04:46,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:46,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:04:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:46,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:04:46,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:46,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:04:46,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:46,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:04:46,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:46,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:04:46,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:46,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:04:46,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:46,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:04:46,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:46,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:04:46,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:46,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:04:46,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:46,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:04:46,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:46,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:04:46,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:46,801 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 09:04:46,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:04:46,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781835360] [2024-11-20 09:04:46,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781835360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:04:46,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:04:46,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 09:04:46,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831247056] [2024-11-20 09:04:46,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:04:46,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 09:04:46,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:04:46,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 09:04:46,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 09:04:46,804 INFO L87 Difference]: Start difference. First operand 109 states and 153 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 09:04:46,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:04:46,975 INFO L93 Difference]: Finished difference Result 257 states and 359 transitions. [2024-11-20 09:04:46,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 09:04:46,975 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 132 [2024-11-20 09:04:46,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:04:46,977 INFO L225 Difference]: With dead ends: 257 [2024-11-20 09:04:46,977 INFO L226 Difference]: Without dead ends: 151 [2024-11-20 09:04:46,978 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 09:04:46,979 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 47 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 09:04:46,979 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 492 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 09:04:46,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-20 09:04:46,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 115. [2024-11-20 09:04:46,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 96 states have (on average 1.3229166666666667) internal successors, (127), 96 states have internal predecessors, (127), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-20 09:04:46,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 161 transitions. [2024-11-20 09:04:46,995 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 161 transitions. Word has length 132 [2024-11-20 09:04:46,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:04:46,996 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 161 transitions. [2024-11-20 09:04:46,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 09:04:46,996 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 161 transitions. [2024-11-20 09:04:47,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-20 09:04:47,000 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:04:47,000 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:04:47,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 09:04:47,000 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:04:47,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:04:47,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1820578594, now seen corresponding path program 1 times [2024-11-20 09:04:47,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:04:47,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426625494] [2024-11-20 09:04:47,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:04:47,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:04:47,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:50,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:04:50,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:50,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:04:50,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:50,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:04:50,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:50,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:04:50,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:50,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:04:50,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:50,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:04:50,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:50,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:04:50,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:50,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:04:50,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:50,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:04:50,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:50,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:04:50,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:50,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:04:50,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:50,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:04:50,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:50,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:04:50,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:50,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:04:50,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:50,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:04:50,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:50,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:04:50,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:50,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:04:50,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:50,539 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 09:04:50,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:04:50,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426625494] [2024-11-20 09:04:50,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426625494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:04:50,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:04:50,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-20 09:04:50,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686579346] [2024-11-20 09:04:50,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:04:50,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-20 09:04:50,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:04:50,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-20 09:04:50,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2024-11-20 09:04:50,543 INFO L87 Difference]: Start difference. First operand 115 states and 161 transitions. Second operand has 16 states, 14 states have (on average 3.642857142857143) internal successors, (51), 16 states have internal predecessors, (51), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-20 09:04:51,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:04:51,752 INFO L93 Difference]: Finished difference Result 270 states and 376 transitions. [2024-11-20 09:04:51,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 09:04:51,752 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 3.642857142857143) internal successors, (51), 16 states have internal predecessors, (51), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 5 states have call successors, (17) Word has length 133 [2024-11-20 09:04:51,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:04:51,754 INFO L225 Difference]: With dead ends: 270 [2024-11-20 09:04:51,754 INFO L226 Difference]: Without dead ends: 158 [2024-11-20 09:04:51,754 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=113, Invalid=349, Unknown=0, NotChecked=0, Total=462 [2024-11-20 09:04:51,755 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 439 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 879 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-20 09:04:51,755 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 506 Invalid, 920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 879 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-20 09:04:51,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-11-20 09:04:51,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 127. [2024-11-20 09:04:51,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 108 states have (on average 1.3240740740740742) internal successors, (143), 108 states have internal predecessors, (143), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-20 09:04:51,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 177 transitions. [2024-11-20 09:04:51,767 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 177 transitions. Word has length 133 [2024-11-20 09:04:51,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:04:51,768 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 177 transitions. [2024-11-20 09:04:51,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 3.642857142857143) internal successors, (51), 16 states have internal predecessors, (51), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-20 09:04:51,768 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 177 transitions. [2024-11-20 09:04:51,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-20 09:04:51,769 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:04:51,769 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:04:51,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 09:04:51,769 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:04:51,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:04:51,770 INFO L85 PathProgramCache]: Analyzing trace with hash -857559976, now seen corresponding path program 1 times [2024-11-20 09:04:51,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:04:51,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621028464] [2024-11-20 09:04:51,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:04:51,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:04:51,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:53,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:04:53,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:53,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:04:53,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:53,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:04:53,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:53,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:04:53,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:53,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:04:53,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:53,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:04:53,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:53,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:04:53,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:53,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:04:53,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:53,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:04:53,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:53,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:04:53,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:53,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:04:53,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:53,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:04:53,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:53,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:04:53,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:53,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:04:53,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:53,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:04:53,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:53,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:04:53,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:53,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:04:53,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:53,919 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 09:04:53,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:04:53,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621028464] [2024-11-20 09:04:53,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621028464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:04:53,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:04:53,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-20 09:04:53,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630540718] [2024-11-20 09:04:53,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:04:53,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-20 09:04:53,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:04:53,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-20 09:04:53,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-11-20 09:04:53,923 INFO L87 Difference]: Start difference. First operand 127 states and 177 transitions. Second operand has 15 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 15 states have internal predecessors, (52), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-20 09:04:55,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:04:55,083 INFO L93 Difference]: Finished difference Result 326 states and 452 transitions. [2024-11-20 09:04:55,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 09:04:55,084 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 15 states have internal predecessors, (52), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 134 [2024-11-20 09:04:55,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:04:55,085 INFO L225 Difference]: With dead ends: 326 [2024-11-20 09:04:55,085 INFO L226 Difference]: Without dead ends: 198 [2024-11-20 09:04:55,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=130, Invalid=376, Unknown=0, NotChecked=0, Total=506 [2024-11-20 09:04:55,086 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 309 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 957 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-20 09:04:55,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 552 Invalid, 981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 957 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-20 09:04:55,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-11-20 09:04:55,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 144. [2024-11-20 09:04:55,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 125 states have (on average 1.336) internal successors, (167), 125 states have internal predecessors, (167), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-20 09:04:55,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 201 transitions. [2024-11-20 09:04:55,100 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 201 transitions. Word has length 134 [2024-11-20 09:04:55,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:04:55,101 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 201 transitions. [2024-11-20 09:04:55,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 15 states have internal predecessors, (52), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-20 09:04:55,101 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 201 transitions. [2024-11-20 09:04:55,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-20 09:04:55,103 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:04:55,103 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:04:55,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 09:04:55,103 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:04:55,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:04:55,103 INFO L85 PathProgramCache]: Analyzing trace with hash 671706015, now seen corresponding path program 1 times [2024-11-20 09:04:55,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:04:55,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978720310] [2024-11-20 09:04:55,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:04:55,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:04:55,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:56,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:04:56,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:56,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:04:56,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:56,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:04:56,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:56,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:04:56,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:56,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:04:56,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:56,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:04:57,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:57,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:04:57,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:57,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:04:57,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:57,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:04:57,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:57,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:04:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:57,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:04:57,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:57,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:04:57,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:57,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:04:57,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:57,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:04:57,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:57,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:04:57,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:57,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:04:57,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:57,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:04:57,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:57,106 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 09:04:57,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:04:57,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978720310] [2024-11-20 09:04:57,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978720310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:04:57,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:04:57,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-20 09:04:57,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251086871] [2024-11-20 09:04:57,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:04:57,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 09:04:57,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:04:57,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 09:04:57,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-11-20 09:04:57,108 INFO L87 Difference]: Start difference. First operand 144 states and 201 transitions. Second operand has 13 states, 12 states have (on average 4.333333333333333) internal successors, (52), 13 states have internal predecessors, (52), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-20 09:04:57,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:04:57,939 INFO L93 Difference]: Finished difference Result 335 states and 467 transitions. [2024-11-20 09:04:57,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 09:04:57,940 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.333333333333333) internal successors, (52), 13 states have internal predecessors, (52), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 134 [2024-11-20 09:04:57,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:04:57,941 INFO L225 Difference]: With dead ends: 335 [2024-11-20 09:04:57,941 INFO L226 Difference]: Without dead ends: 194 [2024-11-20 09:04:57,941 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2024-11-20 09:04:57,943 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 331 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 09:04:57,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 493 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 09:04:57,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-11-20 09:04:57,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 144. [2024-11-20 09:04:57,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 125 states have (on average 1.312) internal successors, (164), 125 states have internal predecessors, (164), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-20 09:04:57,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 198 transitions. [2024-11-20 09:04:57,960 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 198 transitions. Word has length 134 [2024-11-20 09:04:57,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:04:57,961 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 198 transitions. [2024-11-20 09:04:57,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.333333333333333) internal successors, (52), 13 states have internal predecessors, (52), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-20 09:04:57,961 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 198 transitions. [2024-11-20 09:04:57,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-20 09:04:57,962 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:04:57,962 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:04:57,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 09:04:57,963 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:04:57,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:04:57,963 INFO L85 PathProgramCache]: Analyzing trace with hash -162933833, now seen corresponding path program 1 times [2024-11-20 09:04:57,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:04:57,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388548917] [2024-11-20 09:04:57,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:04:57,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:04:57,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:58,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:04:58,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:58,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:04:58,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:58,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:04:58,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:58,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:04:58,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:58,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:04:58,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:58,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:04:58,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:58,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:04:58,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:58,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:04:58,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:58,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:04:58,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:58,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:04:58,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:58,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:04:58,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:58,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:04:58,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:58,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:04:58,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:58,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:04:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:58,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:04:58,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:58,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:04:58,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:58,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:04:58,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:58,709 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 09:04:58,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:04:58,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388548917] [2024-11-20 09:04:58,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388548917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:04:58,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:04:58,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 09:04:58,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491954132] [2024-11-20 09:04:58,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:04:58,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 09:04:58,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:04:58,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 09:04:58,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-20 09:04:58,713 INFO L87 Difference]: Start difference. First operand 144 states and 198 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-20 09:04:59,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:04:59,159 INFO L93 Difference]: Finished difference Result 364 states and 499 transitions. [2024-11-20 09:04:59,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 09:04:59,159 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 135 [2024-11-20 09:04:59,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:04:59,160 INFO L225 Difference]: With dead ends: 364 [2024-11-20 09:04:59,160 INFO L226 Difference]: Without dead ends: 223 [2024-11-20 09:04:59,161 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-11-20 09:04:59,161 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 427 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 09:04:59,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 378 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 09:04:59,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-11-20 09:04:59,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 220. [2024-11-20 09:04:59,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 190 states have (on average 1.3) internal successors, (247), 191 states have internal predecessors, (247), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-20 09:04:59,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 301 transitions. [2024-11-20 09:04:59,190 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 301 transitions. Word has length 135 [2024-11-20 09:04:59,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:04:59,190 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 301 transitions. [2024-11-20 09:04:59,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-20 09:04:59,190 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 301 transitions. [2024-11-20 09:04:59,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-20 09:04:59,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:04:59,191 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:04:59,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 09:04:59,191 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:04:59,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:04:59,191 INFO L85 PathProgramCache]: Analyzing trace with hash 423872181, now seen corresponding path program 1 times [2024-11-20 09:04:59,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:04:59,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113318283] [2024-11-20 09:04:59,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:04:59,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:04:59,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:59,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:04:59,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:59,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:04:59,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:59,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:04:59,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:59,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:04:59,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:59,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:04:59,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:59,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:04:59,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:59,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:04:59,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:59,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:04:59,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:59,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:04:59,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:59,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:04:59,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:59,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:04:59,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:00,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:05:00,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:00,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:05:00,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:00,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:05:00,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:00,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:05:00,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:00,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:05:00,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:00,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:05:00,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:00,041 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-20 09:05:00,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:05:00,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113318283] [2024-11-20 09:05:00,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113318283] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 09:05:00,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504267193] [2024-11-20 09:05:00,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:05:00,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 09:05:00,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:05:00,044 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 09:05:00,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 09:05:00,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:00,178 INFO L255 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-20 09:05:00,191 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 09:05:01,342 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-20 09:05:01,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-20 09:05:01,962 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-20 09:05:02,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 09:05:02,304 INFO L349 Elim1Store]: treesize reduction 25, result has 30.6 percent of original size [2024-11-20 09:05:02,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 33 [2024-11-20 09:05:02,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 09:05:02,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 09:05:02,382 INFO L349 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2024-11-20 09:05:02,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 32 [2024-11-20 09:05:02,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 09:05:02,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-20 09:05:02,483 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-20 09:05:02,486 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 153 proven. 177 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2024-11-20 09:05:02,486 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 09:05:02,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1504267193] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 09:05:02,652 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 09:05:02,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 21 [2024-11-20 09:05:02,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355903270] [2024-11-20 09:05:02,653 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 09:05:02,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-20 09:05:02,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:05:02,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-20 09:05:02,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2024-11-20 09:05:02,654 INFO L87 Difference]: Start difference. First operand 220 states and 301 transitions. Second operand has 21 states, 19 states have (on average 5.157894736842105) internal successors, (98), 21 states have internal predecessors, (98), 9 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 7 states have call predecessors, (34), 9 states have call successors, (34) [2024-11-20 09:05:03,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:05:03,734 INFO L93 Difference]: Finished difference Result 454 states and 618 transitions. [2024-11-20 09:05:03,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-20 09:05:03,736 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 5.157894736842105) internal successors, (98), 21 states have internal predecessors, (98), 9 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 7 states have call predecessors, (34), 9 states have call successors, (34) Word has length 135 [2024-11-20 09:05:03,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:05:03,737 INFO L225 Difference]: With dead ends: 454 [2024-11-20 09:05:03,737 INFO L226 Difference]: Without dead ends: 237 [2024-11-20 09:05:03,738 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 187 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=301, Invalid=821, Unknown=0, NotChecked=0, Total=1122 [2024-11-20 09:05:03,738 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 412 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 1029 mSolverCounterSat, 234 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 1263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 234 IncrementalHoareTripleChecker+Valid, 1029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-20 09:05:03,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 677 Invalid, 1263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [234 Valid, 1029 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-20 09:05:03,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-11-20 09:05:03,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 226. [2024-11-20 09:05:03,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 185 states have (on average 1.2648648648648648) internal successors, (234), 187 states have internal predecessors, (234), 37 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (37), 35 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-20 09:05:03,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 308 transitions. [2024-11-20 09:05:03,777 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 308 transitions. Word has length 135 [2024-11-20 09:05:03,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:05:03,777 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 308 transitions. [2024-11-20 09:05:03,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 5.157894736842105) internal successors, (98), 21 states have internal predecessors, (98), 9 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 7 states have call predecessors, (34), 9 states have call successors, (34) [2024-11-20 09:05:03,778 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 308 transitions. [2024-11-20 09:05:03,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-20 09:05:03,778 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:05:03,778 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:05:03,787 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-20 09:05:03,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-20 09:05:03,979 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:05:03,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:05:03,979 INFO L85 PathProgramCache]: Analyzing trace with hash -980582283, now seen corresponding path program 1 times [2024-11-20 09:05:03,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:05:03,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836215092] [2024-11-20 09:05:03,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:05:03,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:05:04,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:04,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:05:04,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:04,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:05:04,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:04,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:05:04,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:04,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:05:04,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:04,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:05:04,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:04,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:05:04,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:04,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:05:04,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:04,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:05:04,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:04,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:05:04,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:04,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:05:04,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:04,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:05:04,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:04,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:05:04,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:04,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:05:04,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:04,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:05:04,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:04,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:05:04,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:04,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:05:04,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:04,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:05:04,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:04,757 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 09:05:04,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:05:04,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836215092] [2024-11-20 09:05:04,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836215092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:05:04,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:05:04,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-20 09:05:04,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502069648] [2024-11-20 09:05:04,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:05:04,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-20 09:05:04,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:05:04,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-20 09:05:04,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-20 09:05:04,759 INFO L87 Difference]: Start difference. First operand 226 states and 308 transitions. Second operand has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 09:05:05,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:05:05,480 INFO L93 Difference]: Finished difference Result 476 states and 646 transitions. [2024-11-20 09:05:05,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 09:05:05,481 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2024-11-20 09:05:05,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:05:05,484 INFO L225 Difference]: With dead ends: 476 [2024-11-20 09:05:05,484 INFO L226 Difference]: Without dead ends: 278 [2024-11-20 09:05:05,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2024-11-20 09:05:05,485 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 175 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 09:05:05,488 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 1058 Invalid, 861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 861 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 09:05:05,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2024-11-20 09:05:05,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 240. [2024-11-20 09:05:05,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 199 states have (on average 1.2663316582914572) internal successors, (252), 201 states have internal predecessors, (252), 37 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (37), 35 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-20 09:05:05,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 326 transitions. [2024-11-20 09:05:05,532 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 326 transitions. Word has length 135 [2024-11-20 09:05:05,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:05:05,532 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 326 transitions. [2024-11-20 09:05:05,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 09:05:05,532 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 326 transitions. [2024-11-20 09:05:05,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-20 09:05:05,533 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:05:05,533 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:05:05,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 09:05:05,533 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:05:05,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:05:05,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1120331746, now seen corresponding path program 1 times [2024-11-20 09:05:05,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:05:05,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096046006] [2024-11-20 09:05:05,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:05:05,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:05:05,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:08,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:05:08,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:08,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:05:08,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:08,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:05:08,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:08,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:05:08,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:08,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:05:08,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:08,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:05:08,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:08,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:05:08,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:08,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:05:08,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:08,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:05:08,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:08,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:05:08,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:08,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:05:08,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:08,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:05:08,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:08,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:05:08,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:08,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:05:08,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:08,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:05:08,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:08,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:05:08,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:08,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:05:08,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:08,267 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 09:05:08,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:05:08,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096046006] [2024-11-20 09:05:08,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096046006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:05:08,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:05:08,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-20 09:05:08,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717628320] [2024-11-20 09:05:08,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:05:08,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 09:05:08,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:05:08,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 09:05:08,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-11-20 09:05:08,269 INFO L87 Difference]: Start difference. First operand 240 states and 326 transitions. Second operand has 13 states, 11 states have (on average 4.818181818181818) internal successors, (53), 13 states have internal predecessors, (53), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-20 09:05:09,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:05:09,070 INFO L93 Difference]: Finished difference Result 518 states and 703 transitions. [2024-11-20 09:05:09,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 09:05:09,071 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 4.818181818181818) internal successors, (53), 13 states have internal predecessors, (53), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 5 states have call successors, (17) Word has length 135 [2024-11-20 09:05:09,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:05:09,074 INFO L225 Difference]: With dead ends: 518 [2024-11-20 09:05:09,074 INFO L226 Difference]: Without dead ends: 301 [2024-11-20 09:05:09,075 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2024-11-20 09:05:09,075 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 486 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 09:05:09,075 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 365 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 09:05:09,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-11-20 09:05:09,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 233. [2024-11-20 09:05:09,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 192 states have (on average 1.2447916666666667) internal successors, (239), 194 states have internal predecessors, (239), 37 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (37), 35 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-20 09:05:09,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 313 transitions. [2024-11-20 09:05:09,110 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 313 transitions. Word has length 135 [2024-11-20 09:05:09,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:05:09,111 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 313 transitions. [2024-11-20 09:05:09,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 4.818181818181818) internal successors, (53), 13 states have internal predecessors, (53), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-20 09:05:09,111 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 313 transitions. [2024-11-20 09:05:09,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-20 09:05:09,112 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:05:09,112 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:05:09,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 09:05:09,112 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:05:09,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:05:09,112 INFO L85 PathProgramCache]: Analyzing trace with hash -37594425, now seen corresponding path program 1 times [2024-11-20 09:05:09,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:05:09,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012148771] [2024-11-20 09:05:09,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:05:09,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:05:09,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 09:05:09,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1685834735] [2024-11-20 09:05:09,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:05:09,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 09:05:09,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:05:09,206 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 09:05:09,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 09:05:09,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:09,529 INFO L255 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 147 conjuncts are in the unsatisfiable core [2024-11-20 09:05:09,538 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 09:05:09,564 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 42 [2024-11-20 09:05:10,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 79 [2024-11-20 09:05:11,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 86 [2024-11-20 09:05:13,099 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 93 [2024-11-20 09:05:14,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 104 [2024-11-20 09:05:16,316 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 104 [2024-11-20 09:05:17,714 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 104 [2024-11-20 09:05:20,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 157 treesize of output 118 [2024-11-20 09:05:21,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 161 treesize of output 120 [2024-11-20 09:05:25,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 185 treesize of output 136 [2024-11-20 09:05:25,565 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 332 treesize of output 249 [2024-11-20 09:05:26,268 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 825 treesize of output 618 [2024-11-20 09:05:52,741 WARN L286 SmtUtils]: Spent 15.54s on a formula simplification. DAG size of input: 636 DAG size of output: 633 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)