./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-s_file-71.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-s_file-71.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 47e8ddd221104cc805d3d68561579c1d0ceb215c71efab48659b0323dc3025dc --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 09:00:18,442 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 09:00:18,496 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 09:00:18,501 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 09:00:18,503 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 09:00:18,524 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 09:00:18,524 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 09:00:18,524 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 09:00:18,525 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 09:00:18,528 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 09:00:18,528 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 09:00:18,528 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 09:00:18,529 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 09:00:18,529 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 09:00:18,529 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 09:00:18,529 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 09:00:18,529 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 09:00:18,530 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 09:00:18,530 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 09:00:18,530 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 09:00:18,530 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 09:00:18,530 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 09:00:18,531 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 09:00:18,531 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 09:00:18,531 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 09:00:18,531 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 09:00:18,531 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 09:00:18,531 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 09:00:18,531 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 09:00:18,531 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 09:00:18,532 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 09:00:18,532 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 09:00:18,532 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 09:00:18,532 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 09:00:18,532 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 09:00:18,532 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 09:00:18,532 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 09:00:18,532 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 09:00:18,533 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 09:00:18,533 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 09:00:18,534 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 09:00:18,534 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 09:00:18,535 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47e8ddd221104cc805d3d68561579c1d0ceb215c71efab48659b0323dc3025dc [2024-11-20 09:00:18,725 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 09:00:18,755 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 09:00:18,758 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 09:00:18,759 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 09:00:18,759 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 09:00:18,761 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-71.i [2024-11-20 09:00:20,176 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 09:00:20,330 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 09:00:20,331 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-71.i [2024-11-20 09:00:20,341 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fee42e22a/0ffd2426c2d74021a7405656a36f88c9/FLAG81838ebdc [2024-11-20 09:00:20,354 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fee42e22a/0ffd2426c2d74021a7405656a36f88c9 [2024-11-20 09:00:20,356 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 09:00:20,357 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 09:00:20,358 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 09:00:20,358 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 09:00:20,362 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 09:00:20,363 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:00:20" (1/1) ... [2024-11-20 09:00:20,365 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@640a3ac0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:20, skipping insertion in model container [2024-11-20 09:00:20,365 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:00:20" (1/1) ... [2024-11-20 09:00:20,389 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 09:00:20,510 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-s_file-71.i[916,929] [2024-11-20 09:00:20,552 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 09:00:20,559 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 09:00:20,571 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-s_file-71.i[916,929] [2024-11-20 09:00:20,646 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 09:00:20,713 INFO L204 MainTranslator]: Completed translation [2024-11-20 09:00:20,716 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:20 WrapperNode [2024-11-20 09:00:20,717 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 09:00:20,718 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 09:00:20,722 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 09:00:20,722 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 09:00:20,732 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:20" (1/1) ... [2024-11-20 09:00:20,764 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:20" (1/1) ... [2024-11-20 09:00:20,833 INFO L138 Inliner]: procedures = 27, calls = 169, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 488 [2024-11-20 09:00:20,834 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 09:00:20,837 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 09:00:20,837 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 09:00:20,837 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 09:00:20,853 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:20" (1/1) ... [2024-11-20 09:00:20,853 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:20" (1/1) ... [2024-11-20 09:00:20,870 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:20" (1/1) ... [2024-11-20 09:00:20,898 INFO L175 MemorySlicer]: Split 139 memory accesses to 2 slices as follows [2, 137]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 33 writes are split as follows [0, 33]. [2024-11-20 09:00:20,898 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:20" (1/1) ... [2024-11-20 09:00:20,899 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:20" (1/1) ... [2024-11-20 09:00:20,922 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:20" (1/1) ... [2024-11-20 09:00:20,933 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:20" (1/1) ... [2024-11-20 09:00:20,935 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:20" (1/1) ... [2024-11-20 09:00:20,941 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:20" (1/1) ... [2024-11-20 09:00:20,949 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 09:00:20,953 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 09:00:20,953 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 09:00:20,953 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 09:00:20,953 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:20" (1/1) ... [2024-11-20 09:00:20,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 09:00:20,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:00:20,991 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 09:00:21,006 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 09:00:21,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 09:00:21,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-20 09:00:21,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-20 09:00:21,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 09:00:21,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 09:00:21,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 09:00:21,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 09:00:21,050 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 09:00:21,050 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 09:00:21,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 09:00:21,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 09:00:21,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 09:00:21,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 09:00:21,159 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 09:00:21,161 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 09:00:21,567 INFO L? ?]: Removed 126 outVars from TransFormulas that were not future-live. [2024-11-20 09:00:21,570 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 09:00:21,588 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 09:00:21,589 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 09:00:21,590 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:00:21 BoogieIcfgContainer [2024-11-20 09:00:21,590 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 09:00:21,591 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 09:00:21,592 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 09:00:21,595 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 09:00:21,595 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:00:20" (1/3) ... [2024-11-20 09:00:21,596 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a2928c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:00:21, skipping insertion in model container [2024-11-20 09:00:21,596 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:20" (2/3) ... [2024-11-20 09:00:21,596 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a2928c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:00:21, skipping insertion in model container [2024-11-20 09:00:21,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:00:21" (3/3) ... [2024-11-20 09:00:21,598 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-71.i [2024-11-20 09:00:21,611 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 09:00:21,611 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 09:00:21,699 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 09:00:21,704 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;@6b1e6241, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 09:00:21,704 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 09:00:21,707 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 83 states have (on average 1.3855421686746987) internal successors, (115), 84 states have internal predecessors, (115), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-20 09:00:21,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-20 09:00:21,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:00:21,717 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:00:21,718 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:00:21,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:00:21,722 INFO L85 PathProgramCache]: Analyzing trace with hash -312506901, now seen corresponding path program 1 times [2024-11-20 09:00:21,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:00:21,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193276256] [2024-11-20 09:00:21,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:00:21,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:00:21,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:00:22,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:00:22,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:00:22,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:00:22,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:00:22,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:00:22,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:00:22,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:00:22,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:00:22,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:00:22,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:00:22,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:00:22,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:00:22,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:00:22,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:00:22,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:00:22,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:00:22,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:00:22,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:00:22,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,118 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:00:22,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:00:22,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193276256] [2024-11-20 09:00:22,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193276256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:00:22,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:00:22,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 09:00:22,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393014770] [2024-11-20 09:00:22,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:00:22,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 09:00:22,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:00:22,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 09:00:22,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 09:00:22,155 INFO L87 Difference]: Start difference. First operand has 105 states, 83 states have (on average 1.3855421686746987) internal successors, (115), 84 states have internal predecessors, (115), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 09:00:22,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:00:22,188 INFO L93 Difference]: Finished difference Result 203 states and 319 transitions. [2024-11-20 09:00:22,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 09:00:22,192 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 144 [2024-11-20 09:00:22,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:00:22,199 INFO L225 Difference]: With dead ends: 203 [2024-11-20 09:00:22,200 INFO L226 Difference]: Without dead ends: 101 [2024-11-20 09:00:22,204 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 59 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 09:00:22,208 INFO L432 NwaCegarLoop]: 144 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, 144 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 09:00:22,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 09:00:22,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-20 09:00:22,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-20 09:00:22,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 80 states have (on average 1.325) internal successors, (106), 80 states have internal predecessors, (106), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-20 09:00:22,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 144 transitions. [2024-11-20 09:00:22,256 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 144 transitions. Word has length 144 [2024-11-20 09:00:22,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:00:22,258 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 144 transitions. [2024-11-20 09:00:22,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 09:00:22,258 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 144 transitions. [2024-11-20 09:00:22,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-20 09:00:22,266 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:00:22,267 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:00:22,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 09:00:22,268 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:00:22,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:00:22,269 INFO L85 PathProgramCache]: Analyzing trace with hash 693008529, now seen corresponding path program 1 times [2024-11-20 09:00:22,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:00:22,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280003150] [2024-11-20 09:00:22,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:00:22,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:00:22,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:00:22,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:00:22,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:00:22,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:00:22,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:00:22,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:00:22,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:00:22,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:00:22,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:00:22,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:00:22,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:00:22,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:00:22,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:00:22,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:00:22,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:00:22,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:00:22,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:00:22,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:00:22,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:00:22,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,639 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:00:22,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:00:22,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280003150] [2024-11-20 09:00:22,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280003150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:00:22,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:00:22,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 09:00:22,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291705999] [2024-11-20 09:00:22,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:00:22,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 09:00:22,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:00:22,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 09:00:22,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 09:00:22,642 INFO L87 Difference]: Start difference. First operand 101 states and 144 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 09:00:22,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:00:22,670 INFO L93 Difference]: Finished difference Result 202 states and 289 transitions. [2024-11-20 09:00:22,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 09:00:22,670 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 144 [2024-11-20 09:00:22,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:00:22,672 INFO L225 Difference]: With dead ends: 202 [2024-11-20 09:00:22,672 INFO L226 Difference]: Without dead ends: 104 [2024-11-20 09:00:22,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 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 09:00:22,674 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 1 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 09:00:22,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 412 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 09:00:22,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-20 09:00:22,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 103. [2024-11-20 09:00:22,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 82 states have (on average 1.3170731707317074) internal successors, (108), 82 states have internal predecessors, (108), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-20 09:00:22,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 146 transitions. [2024-11-20 09:00:22,682 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 146 transitions. Word has length 144 [2024-11-20 09:00:22,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:00:22,683 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 146 transitions. [2024-11-20 09:00:22,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 09:00:22,683 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 146 transitions. [2024-11-20 09:00:22,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-20 09:00:22,685 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:00:22,685 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:00:22,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 09:00:22,686 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:00:22,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:00:22,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1826951405, now seen corresponding path program 1 times [2024-11-20 09:00:22,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:00:22,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374948800] [2024-11-20 09:00:22,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:00:22,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:00:22,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:00:22,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:00:22,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:00:22,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:00:22,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:00:22,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:00:22,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:00:22,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:00:22,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:00:22,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:00:22,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:00:22,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:00:22,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:00:22,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:00:22,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:00:22,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:00:22,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:00:22,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:00:22,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:00:22,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:22,805 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:00:22,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:00:22,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374948800] [2024-11-20 09:00:22,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374948800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:00:22,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:00:22,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 09:00:22,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626540681] [2024-11-20 09:00:22,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:00:22,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 09:00:22,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:00:22,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 09:00:22,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 09:00:22,807 INFO L87 Difference]: Start difference. First operand 103 states and 146 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 09:00:22,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:00:22,829 INFO L93 Difference]: Finished difference Result 206 states and 293 transitions. [2024-11-20 09:00:22,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 09:00:22,829 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 144 [2024-11-20 09:00:22,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:00:22,830 INFO L225 Difference]: With dead ends: 206 [2024-11-20 09:00:22,831 INFO L226 Difference]: Without dead ends: 106 [2024-11-20 09:00:22,831 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 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 09:00:22,832 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 1 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 09:00:22,832 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 415 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 09:00:22,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-20 09:00:22,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 105. [2024-11-20 09:00:22,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 84 states have (on average 1.3095238095238095) internal successors, (110), 84 states have internal predecessors, (110), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-20 09:00:22,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 148 transitions. [2024-11-20 09:00:22,839 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 148 transitions. Word has length 144 [2024-11-20 09:00:22,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:00:22,839 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 148 transitions. [2024-11-20 09:00:22,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 09:00:22,840 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 148 transitions. [2024-11-20 09:00:22,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-20 09:00:22,841 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:00:22,841 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:00:22,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 09:00:22,841 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:00:22,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:00:22,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1825104363, now seen corresponding path program 1 times [2024-11-20 09:00:22,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:00:22,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625616250] [2024-11-20 09:00:22,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:00:22,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:00:22,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:23,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:00:23,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:23,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:00:23,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:23,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:00:23,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:23,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:00:23,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:23,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:00:23,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:23,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:00:23,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:23,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:00:23,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:23,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:00:23,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:23,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:00:23,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:23,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:00:23,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:23,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:00:23,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:23,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:00:23,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:23,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:00:23,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:23,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:00:23,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:23,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:00:23,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:23,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:00:23,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:23,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:00:23,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:23,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:00:23,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:23,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:00:23,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:23,705 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:00:23,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:00:23,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625616250] [2024-11-20 09:00:23,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625616250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:00:23,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:00:23,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 09:00:23,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823761262] [2024-11-20 09:00:23,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:00:23,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 09:00:23,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:00:23,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 09:00:23,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 09:00:23,710 INFO L87 Difference]: Start difference. First operand 105 states and 148 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 09:00:24,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:00:24,118 INFO L93 Difference]: Finished difference Result 290 states and 408 transitions. [2024-11-20 09:00:24,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 09:00:24,119 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 144 [2024-11-20 09:00:24,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:00:24,122 INFO L225 Difference]: With dead ends: 290 [2024-11-20 09:00:24,122 INFO L226 Difference]: Without dead ends: 188 [2024-11-20 09:00:24,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-20 09:00:24,125 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 107 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 09:00:24,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 537 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 09:00:24,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-11-20 09:00:24,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 176. [2024-11-20 09:00:24,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 144 states have (on average 1.3125) internal successors, (189), 145 states have internal predecessors, (189), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-20 09:00:24,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 247 transitions. [2024-11-20 09:00:24,142 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 247 transitions. Word has length 144 [2024-11-20 09:00:24,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:00:24,142 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 247 transitions. [2024-11-20 09:00:24,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 09:00:24,143 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 247 transitions. [2024-11-20 09:00:24,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-20 09:00:24,144 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:00:24,144 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:00:24,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 09:00:24,144 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:00:24,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:00:24,145 INFO L85 PathProgramCache]: Analyzing trace with hash -872708680, now seen corresponding path program 1 times [2024-11-20 09:00:24,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:00:24,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063749996] [2024-11-20 09:00:24,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:00:24,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:00:24,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:25,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:00:25,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:25,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:00:25,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:25,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:00:25,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:25,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:00:25,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:25,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:00:25,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:25,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:00:25,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:25,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:00:25,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:25,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:00:25,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:25,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:00:25,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:25,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:00:25,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:25,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:00:25,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:25,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:00:25,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:25,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:00:25,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:25,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:00:25,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:25,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:00:25,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:25,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:00:25,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:25,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:00:25,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:25,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:00:25,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:25,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:00:25,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:25,163 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:00:25,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:00:25,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063749996] [2024-11-20 09:00:25,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063749996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:00:25,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:00:25,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 09:00:25,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845291642] [2024-11-20 09:00:25,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:00:25,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 09:00:25,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:00:25,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 09:00:25,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 09:00:25,168 INFO L87 Difference]: Start difference. First operand 176 states and 247 transitions. Second operand has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 09:00:25,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:00:25,638 INFO L93 Difference]: Finished difference Result 435 states and 613 transitions. [2024-11-20 09:00:25,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 09:00:25,639 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 145 [2024-11-20 09:00:25,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:00:25,643 INFO L225 Difference]: With dead ends: 435 [2024-11-20 09:00:25,644 INFO L226 Difference]: Without dead ends: 262 [2024-11-20 09:00:25,645 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-20 09:00:25,646 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 102 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 09:00:25,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 669 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 09:00:25,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2024-11-20 09:00:25,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 185. [2024-11-20 09:00:25,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 153 states have (on average 1.326797385620915) internal successors, (203), 154 states have internal predecessors, (203), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-20 09:00:25,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 261 transitions. [2024-11-20 09:00:25,670 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 261 transitions. Word has length 145 [2024-11-20 09:00:25,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:00:25,671 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 261 transitions. [2024-11-20 09:00:25,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 09:00:25,672 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 261 transitions. [2024-11-20 09:00:25,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-20 09:00:25,674 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:00:25,674 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:00:25,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 09:00:25,674 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:00:25,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:00:25,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1111641874, now seen corresponding path program 1 times [2024-11-20 09:00:25,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:00:25,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680751257] [2024-11-20 09:00:25,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:00:25,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:00:25,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:26,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:00:26,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:26,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:00:26,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:26,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:00:26,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:26,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:00:26,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:26,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:00:26,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:26,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:00:26,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:26,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:00:26,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:26,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:00:26,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:26,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:00:26,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:26,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:00:26,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:26,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:00:26,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:26,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:00:26,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:26,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:00:26,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:26,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:00:26,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:26,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:00:26,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:26,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:00:26,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:26,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:00:26,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:26,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:00:26,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:26,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:00:26,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:26,633 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:00:26,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:00:26,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680751257] [2024-11-20 09:00:26,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680751257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:00:26,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:00:26,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 09:00:26,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081151229] [2024-11-20 09:00:26,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:00:26,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 09:00:26,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:00:26,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 09:00:26,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-20 09:00:26,636 INFO L87 Difference]: Start difference. First operand 185 states and 261 transitions. Second operand has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 09:00:27,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:00:27,022 INFO L93 Difference]: Finished difference Result 425 states and 595 transitions. [2024-11-20 09:00:27,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 09:00:27,023 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 146 [2024-11-20 09:00:27,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:00:27,028 INFO L225 Difference]: With dead ends: 425 [2024-11-20 09:00:27,028 INFO L226 Difference]: Without dead ends: 243 [2024-11-20 09:00:27,028 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-20 09:00:27,029 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 73 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 09:00:27,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 940 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 09:00:27,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2024-11-20 09:00:27,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 240. [2024-11-20 09:00:27,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 201 states have (on average 1.3134328358208955) internal successors, (264), 203 states have internal predecessors, (264), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-20 09:00:27,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 334 transitions. [2024-11-20 09:00:27,049 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 334 transitions. Word has length 146 [2024-11-20 09:00:27,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:00:27,049 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 334 transitions. [2024-11-20 09:00:27,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 09:00:27,049 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 334 transitions. [2024-11-20 09:00:27,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-20 09:00:27,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:00:27,051 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:00:27,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 09:00:27,051 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:00:27,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:00:27,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1492049167, now seen corresponding path program 1 times [2024-11-20 09:00:27,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:00:27,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094888302] [2024-11-20 09:00:27,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:00:27,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:00:27,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:27,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:00:27,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:27,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:00:27,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:27,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:00:27,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:27,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:00:27,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:27,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:00:27,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:27,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:00:27,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:27,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:00:27,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:27,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:00:27,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:27,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:00:27,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:27,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:00:27,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:27,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:00:27,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:27,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:00:27,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:27,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:00:27,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:27,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:00:27,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:27,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:00:27,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:27,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:00:27,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:27,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:00:27,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:27,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:00:27,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:27,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:00:27,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:27,877 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:00:27,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:00:27,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094888302] [2024-11-20 09:00:27,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094888302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:00:27,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:00:27,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 09:00:27,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623893328] [2024-11-20 09:00:27,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:00:27,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 09:00:27,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:00:27,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 09:00:27,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 09:00:27,883 INFO L87 Difference]: Start difference. First operand 240 states and 334 transitions. Second operand has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 09:00:28,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:00:28,225 INFO L93 Difference]: Finished difference Result 554 states and 770 transitions. [2024-11-20 09:00:28,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 09:00:28,226 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 146 [2024-11-20 09:00:28,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:00:28,231 INFO L225 Difference]: With dead ends: 554 [2024-11-20 09:00:28,232 INFO L226 Difference]: Without dead ends: 317 [2024-11-20 09:00:28,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-20 09:00:28,233 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 98 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 09:00:28,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 361 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 09:00:28,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-11-20 09:00:28,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 250. [2024-11-20 09:00:28,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 211 states have (on average 1.3127962085308056) internal successors, (277), 213 states have internal predecessors, (277), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-20 09:00:28,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 347 transitions. [2024-11-20 09:00:28,260 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 347 transitions. Word has length 146 [2024-11-20 09:00:28,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:00:28,260 INFO L471 AbstractCegarLoop]: Abstraction has 250 states and 347 transitions. [2024-11-20 09:00:28,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 09:00:28,261 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 347 transitions. [2024-11-20 09:00:28,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-20 09:00:28,262 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:00:28,262 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:00:28,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 09:00:28,263 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:00:28,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:00:28,263 INFO L85 PathProgramCache]: Analyzing trace with hash -687424559, now seen corresponding path program 1 times [2024-11-20 09:00:28,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:00:28,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691247337] [2024-11-20 09:00:28,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:00:28,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:00:28,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:29,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:00:29,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:29,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:00:29,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:29,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:00:29,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:29,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:00:29,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:29,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:00:29,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:29,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:00:29,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:29,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:00:29,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:29,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:00:29,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:29,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:00:29,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:29,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:00:29,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:29,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:00:29,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:29,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:00:29,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:29,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:00:29,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:29,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:00:29,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:29,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:00:29,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:29,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:00:29,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:29,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:00:29,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:29,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:00:29,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:29,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:00:29,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:29,090 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:00:29,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:00:29,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691247337] [2024-11-20 09:00:29,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691247337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:00:29,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:00:29,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 09:00:29,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160800952] [2024-11-20 09:00:29,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:00:29,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 09:00:29,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:00:29,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 09:00:29,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-20 09:00:29,092 INFO L87 Difference]: Start difference. First operand 250 states and 347 transitions. Second operand has 10 states, 8 states have (on average 6.875) internal successors, (55), 10 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-20 09:00:29,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:00:29,769 INFO L93 Difference]: Finished difference Result 629 states and 864 transitions. [2024-11-20 09:00:29,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 09:00:29,769 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.875) internal successors, (55), 10 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 147 [2024-11-20 09:00:29,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:00:29,774 INFO L225 Difference]: With dead ends: 629 [2024-11-20 09:00:29,774 INFO L226 Difference]: Without dead ends: 382 [2024-11-20 09:00:29,775 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-20 09:00:29,776 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 164 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 09:00:29,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 770 Invalid, 938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 09:00:29,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2024-11-20 09:00:29,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 352. [2024-11-20 09:00:29,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 295 states have (on average 1.2949152542372881) internal successors, (382), 299 states have internal predecessors, (382), 51 states have call successors, (51), 5 states have call predecessors, (51), 5 states have return successors, (51), 47 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-20 09:00:29,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 484 transitions. [2024-11-20 09:00:29,801 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 484 transitions. Word has length 147 [2024-11-20 09:00:29,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:00:29,802 INFO L471 AbstractCegarLoop]: Abstraction has 352 states and 484 transitions. [2024-11-20 09:00:29,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.875) internal successors, (55), 10 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-20 09:00:29,802 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 484 transitions. [2024-11-20 09:00:29,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-20 09:00:29,804 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:00:29,804 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:00:29,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 09:00:29,804 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:00:29,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:00:29,805 INFO L85 PathProgramCache]: Analyzing trace with hash -838220110, now seen corresponding path program 1 times [2024-11-20 09:00:29,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:00:29,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848712516] [2024-11-20 09:00:29,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:00:29,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:00:29,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:30,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:00:30,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:30,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:00:30,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:30,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:00:30,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:30,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:00:30,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:30,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:00:30,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:30,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:00:30,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:30,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:00:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:30,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:00:30,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:30,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:00:30,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:30,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:00:30,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:30,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:00:30,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:30,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:00:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:30,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:00:30,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:30,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:00:30,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:30,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:00:30,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:30,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:00:30,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:30,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:00:30,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:30,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:00:30,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:30,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:00:30,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:30,478 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:00:30,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:00:30,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848712516] [2024-11-20 09:00:30,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848712516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:00:30,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:00:30,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 09:00:30,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626750333] [2024-11-20 09:00:30,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:00:30,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 09:00:30,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:00:30,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 09:00:30,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-20 09:00:30,481 INFO L87 Difference]: Start difference. First operand 352 states and 484 transitions. Second operand has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 09:00:30,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:00:30,785 INFO L93 Difference]: Finished difference Result 815 states and 1114 transitions. [2024-11-20 09:00:30,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 09:00:30,785 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 147 [2024-11-20 09:00:30,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:00:30,787 INFO L225 Difference]: With dead ends: 815 [2024-11-20 09:00:30,787 INFO L226 Difference]: Without dead ends: 466 [2024-11-20 09:00:30,788 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-20 09:00:30,788 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 59 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 09:00:30,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 900 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 09:00:30,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2024-11-20 09:00:30,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 462. [2024-11-20 09:00:30,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 395 states have (on average 1.2911392405063291) internal successors, (510), 401 states have internal predecessors, (510), 59 states have call successors, (59), 7 states have call predecessors, (59), 7 states have return successors, (59), 53 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-20 09:00:30,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 628 transitions. [2024-11-20 09:00:30,803 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 628 transitions. Word has length 147 [2024-11-20 09:00:30,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:00:30,803 INFO L471 AbstractCegarLoop]: Abstraction has 462 states and 628 transitions. [2024-11-20 09:00:30,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 09:00:30,803 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 628 transitions. [2024-11-20 09:00:30,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-20 09:00:30,804 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:00:30,804 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:00:30,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 09:00:30,805 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:00:30,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:00:30,805 INFO L85 PathProgramCache]: Analyzing trace with hash -2118083788, now seen corresponding path program 1 times [2024-11-20 09:00:30,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:00:30,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979885493] [2024-11-20 09:00:30,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:00:30,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:00:30,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:32,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:00:32,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:32,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:00:32,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:32,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:00:32,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:32,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:00:32,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:32,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:00:32,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:32,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:00:32,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:32,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:00:32,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:32,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:00:32,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:32,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:00:32,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:32,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:00:32,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:32,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:00:32,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:32,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:00:32,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:32,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:00:32,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:32,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:00:32,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:32,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:00:32,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:32,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:00:32,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:32,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:00:32,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:32,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:00:32,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:32,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:00:32,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:32,544 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:00:32,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:00:32,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979885493] [2024-11-20 09:00:32,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979885493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:00:32,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:00:32,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 09:00:32,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931305628] [2024-11-20 09:00:32,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:00:32,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 09:00:32,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:00:32,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 09:00:32,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-20 09:00:32,546 INFO L87 Difference]: Start difference. First operand 462 states and 628 transitions. Second operand has 12 states, 9 states have (on average 6.111111111111111) internal successors, (55), 12 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-20 09:00:33,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:00:33,449 INFO L93 Difference]: Finished difference Result 1019 states and 1367 transitions. [2024-11-20 09:00:33,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 09:00:33,450 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 6.111111111111111) internal successors, (55), 12 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 147 [2024-11-20 09:00:33,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:00:33,452 INFO L225 Difference]: With dead ends: 1019 [2024-11-20 09:00:33,452 INFO L226 Difference]: Without dead ends: 560 [2024-11-20 09:00:33,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-11-20 09:00:33,454 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 159 mSDsluCounter, 776 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-20 09:00:33,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 908 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 835 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-20 09:00:33,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-11-20 09:00:33,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 471. [2024-11-20 09:00:33,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 399 states have (on average 1.2781954887218046) internal successors, (510), 406 states have internal predecessors, (510), 61 states have call successors, (61), 10 states have call predecessors, (61), 10 states have return successors, (61), 54 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-20 09:00:33,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 632 transitions. [2024-11-20 09:00:33,479 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 632 transitions. Word has length 147 [2024-11-20 09:00:33,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:00:33,480 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 632 transitions. [2024-11-20 09:00:33,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 6.111111111111111) internal successors, (55), 12 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-20 09:00:33,480 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 632 transitions. [2024-11-20 09:00:33,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-20 09:00:33,481 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:00:33,481 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:00:33,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 09:00:33,481 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:00:33,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:00:33,482 INFO L85 PathProgramCache]: Analyzing trace with hash -697671500, now seen corresponding path program 1 times [2024-11-20 09:00:33,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:00:33,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765079198] [2024-11-20 09:00:33,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:00:33,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:00:33,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:34,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:00:34,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:34,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:00:34,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:34,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:00:34,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:34,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:00:34,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:34,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:00:34,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:34,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:00:34,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:34,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:00:34,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:34,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:00:34,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:34,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:00:34,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:34,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:00:34,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:34,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:00:34,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:34,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:00:34,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:34,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:00:34,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:34,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:00:34,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:34,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:00:34,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:34,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:00:34,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:34,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:00:34,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:34,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:00:34,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:34,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:00:34,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:34,932 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:00:34,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:00:34,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765079198] [2024-11-20 09:00:34,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765079198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:00:34,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:00:34,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-20 09:00:34,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873310025] [2024-11-20 09:00:34,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:00:34,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 09:00:34,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:00:34,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 09:00:34,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-20 09:00:34,938 INFO L87 Difference]: Start difference. First operand 471 states and 632 transitions. Second operand has 11 states, 8 states have (on average 6.875) internal successors, (55), 11 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-20 09:00:35,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:00:35,807 INFO L93 Difference]: Finished difference Result 941 states and 1259 transitions. [2024-11-20 09:00:35,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 09:00:35,808 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 6.875) internal successors, (55), 11 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 147 [2024-11-20 09:00:35,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:00:35,812 INFO L225 Difference]: With dead ends: 941 [2024-11-20 09:00:35,812 INFO L226 Difference]: Without dead ends: 482 [2024-11-20 09:00:35,813 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-20 09:00:35,814 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 68 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 914 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 915 SdHoareTripleChecker+Invalid, 923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-20 09:00:35,814 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 915 Invalid, 923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 914 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-20 09:00:35,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2024-11-20 09:00:35,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 470. [2024-11-20 09:00:35,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 399 states have (on average 1.2731829573934836) internal successors, (508), 405 states have internal predecessors, (508), 59 states have call successors, (59), 11 states have call predecessors, (59), 11 states have return successors, (59), 53 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-20 09:00:35,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 626 transitions. [2024-11-20 09:00:35,837 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 626 transitions. Word has length 147 [2024-11-20 09:00:35,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:00:35,837 INFO L471 AbstractCegarLoop]: Abstraction has 470 states and 626 transitions. [2024-11-20 09:00:35,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 6.875) internal successors, (55), 11 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-20 09:00:35,837 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 626 transitions. [2024-11-20 09:00:35,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-20 09:00:35,839 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:00:35,839 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:00:35,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 09:00:35,840 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:00:35,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:00:35,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1977535178, now seen corresponding path program 1 times [2024-11-20 09:00:35,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:00:35,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113712635] [2024-11-20 09:00:35,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:00:35,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:00:35,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:36,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:00:36,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:36,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:00:36,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:36,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:00:36,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:36,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:00:36,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:36,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:00:36,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:36,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:00:36,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:36,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:00:36,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:36,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:00:36,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:36,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:00:36,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:36,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:00:36,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:36,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:00:36,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:36,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:00:36,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:36,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:00:36,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:36,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:00:36,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:36,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:00:36,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:36,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:00:36,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:36,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:00:36,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:36,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:00:36,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:36,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:00:36,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:36,140 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:00:36,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:00:36,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113712635] [2024-11-20 09:00:36,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113712635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:00:36,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:00:36,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 09:00:36,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567190475] [2024-11-20 09:00:36,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:00:36,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 09:00:36,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:00:36,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 09:00:36,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 09:00:36,143 INFO L87 Difference]: Start difference. First operand 470 states and 626 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 09:00:36,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:00:36,422 INFO L93 Difference]: Finished difference Result 1021 states and 1358 transitions. [2024-11-20 09:00:36,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 09:00:36,423 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 147 [2024-11-20 09:00:36,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:00:36,425 INFO L225 Difference]: With dead ends: 1021 [2024-11-20 09:00:36,426 INFO L226 Difference]: Without dead ends: 554 [2024-11-20 09:00:36,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-20 09:00:36,427 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 104 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 1092 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 09:00:36,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 1092 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 09:00:36,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-11-20 09:00:36,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 541. [2024-11-20 09:00:36,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 440 states have (on average 1.2431818181818182) internal successors, (547), 447 states have internal predecessors, (547), 84 states have call successors, (84), 16 states have call predecessors, (84), 16 states have return successors, (84), 77 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-20 09:00:36,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 715 transitions. [2024-11-20 09:00:36,455 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 715 transitions. Word has length 147 [2024-11-20 09:00:36,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:00:36,455 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 715 transitions. [2024-11-20 09:00:36,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 09:00:36,456 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 715 transitions. [2024-11-20 09:00:36,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-20 09:00:36,457 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:00:36,457 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:00:36,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 09:00:36,457 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:00:36,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:00:36,458 INFO L85 PathProgramCache]: Analyzing trace with hash 697585728, now seen corresponding path program 1 times [2024-11-20 09:00:36,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:00:36,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336835413] [2024-11-20 09:00:36,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:00:36,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:00:36,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:36,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:00:36,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:36,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:00:36,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:36,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:00:36,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:36,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:00:36,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:36,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:00:36,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:36,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:00:36,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:36,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:00:36,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:36,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:00:36,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:36,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:00:36,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:36,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:00:36,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:36,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:00:36,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:36,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:00:36,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:36,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:00:36,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:36,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:00:36,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:36,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:00:36,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:36,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:00:36,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:36,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:00:36,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:36,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:00:36,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:36,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:00:36,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:36,607 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:00:36,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:00:36,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336835413] [2024-11-20 09:00:36,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336835413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:00:36,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:00:36,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 09:00:36,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678647809] [2024-11-20 09:00:36,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:00:36,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 09:00:36,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:00:36,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 09:00:36,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 09:00:36,609 INFO L87 Difference]: Start difference. First operand 541 states and 715 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 09:00:36,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:00:36,782 INFO L93 Difference]: Finished difference Result 1184 states and 1565 transitions. [2024-11-20 09:00:36,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 09:00:36,783 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 148 [2024-11-20 09:00:36,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:00:36,786 INFO L225 Difference]: With dead ends: 1184 [2024-11-20 09:00:36,786 INFO L226 Difference]: Without dead ends: 659 [2024-11-20 09:00:36,787 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 09:00:36,787 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 100 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 09:00:36,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 359 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 09:00:36,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2024-11-20 09:00:36,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 609. [2024-11-20 09:00:36,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 491 states have (on average 1.234215885947047) internal successors, (606), 499 states have internal predecessors, (606), 98 states have call successors, (98), 19 states have call predecessors, (98), 19 states have return successors, (98), 90 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-20 09:00:36,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 802 transitions. [2024-11-20 09:00:36,815 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 802 transitions. Word has length 148 [2024-11-20 09:00:36,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:00:36,815 INFO L471 AbstractCegarLoop]: Abstraction has 609 states and 802 transitions. [2024-11-20 09:00:36,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 09:00:36,815 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 802 transitions. [2024-11-20 09:00:36,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-20 09:00:36,816 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:00:36,816 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:00:36,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 09:00:36,817 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:00:36,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:00:36,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1475214440, now seen corresponding path program 1 times [2024-11-20 09:00:36,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:00:36,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991420633] [2024-11-20 09:00:36,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:00:36,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:00:36,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:37,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:00:37,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:37,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:00:37,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:37,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:00:37,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:37,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:00:37,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:37,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:00:37,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:37,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:00:37,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:37,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:00:37,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:37,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:00:37,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:37,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:00:37,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:37,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:00:37,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:37,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:00:37,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:37,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:00:37,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:37,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:00:37,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:37,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:00:37,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:37,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:00:37,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:37,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:00:37,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:37,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:00:37,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:37,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:00:37,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:37,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:00:37,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:37,363 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:00:37,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:00:37,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991420633] [2024-11-20 09:00:37,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991420633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:00:37,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:00:37,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 09:00:37,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934311976] [2024-11-20 09:00:37,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:00:37,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 09:00:37,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:00:37,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 09:00:37,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 09:00:37,365 INFO L87 Difference]: Start difference. First operand 609 states and 802 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 09:00:37,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:00:37,950 INFO L93 Difference]: Finished difference Result 1205 states and 1587 transitions. [2024-11-20 09:00:37,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 09:00:37,951 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 148 [2024-11-20 09:00:37,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:00:37,957 INFO L225 Difference]: With dead ends: 1205 [2024-11-20 09:00:37,958 INFO L226 Difference]: Without dead ends: 624 [2024-11-20 09:00:37,961 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-20 09:00:37,961 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 90 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 09:00:37,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 414 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 09:00:37,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2024-11-20 09:00:38,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 570. [2024-11-20 09:00:38,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 459 states have (on average 1.233115468409586) internal successors, (566), 466 states have internal predecessors, (566), 92 states have call successors, (92), 18 states have call predecessors, (92), 18 states have return successors, (92), 85 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-20 09:00:38,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 750 transitions. [2024-11-20 09:00:38,022 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 750 transitions. Word has length 148 [2024-11-20 09:00:38,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:00:38,022 INFO L471 AbstractCegarLoop]: Abstraction has 570 states and 750 transitions. [2024-11-20 09:00:38,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 09:00:38,022 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 750 transitions. [2024-11-20 09:00:38,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-20 09:00:38,027 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:00:38,027 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:00:38,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 09:00:38,027 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:00:38,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:00:38,027 INFO L85 PathProgramCache]: Analyzing trace with hash -113133462, now seen corresponding path program 1 times [2024-11-20 09:00:38,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:00:38,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937639574] [2024-11-20 09:00:38,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:00:38,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:00:38,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:38,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:00:38,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:38,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:00:38,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:38,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:00:38,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:38,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:00:38,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:38,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:00:38,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:38,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:00:38,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:38,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:00:38,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:38,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:00:38,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:38,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:00:38,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:38,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:00:38,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:38,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:00:38,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:38,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:00:38,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:38,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:00:38,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:38,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:00:38,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:38,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:00:38,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:38,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:00:38,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:38,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:00:38,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:38,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:00:38,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:38,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:00:38,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:38,940 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:00:38,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:00:38,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937639574] [2024-11-20 09:00:38,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937639574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:00:38,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:00:38,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 09:00:38,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140735886] [2024-11-20 09:00:38,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:00:38,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 09:00:38,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:00:38,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 09:00:38,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 09:00:38,946 INFO L87 Difference]: Start difference. First operand 570 states and 750 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 09:00:39,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:00:39,438 INFO L93 Difference]: Finished difference Result 1112 states and 1461 transitions. [2024-11-20 09:00:39,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 09:00:39,439 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 148 [2024-11-20 09:00:39,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:00:39,446 INFO L225 Difference]: With dead ends: 1112 [2024-11-20 09:00:39,446 INFO L226 Difference]: Without dead ends: 570 [2024-11-20 09:00:39,451 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-20 09:00:39,452 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 60 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 09:00:39,452 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 606 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 09:00:39,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2024-11-20 09:00:39,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 567. [2024-11-20 09:00:39,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 455 states have (on average 1.2263736263736265) internal successors, (558), 462 states have internal predecessors, (558), 92 states have call successors, (92), 19 states have call predecessors, (92), 19 states have return successors, (92), 85 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-20 09:00:39,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 742 transitions. [2024-11-20 09:00:39,512 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 742 transitions. Word has length 148 [2024-11-20 09:00:39,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:00:39,512 INFO L471 AbstractCegarLoop]: Abstraction has 567 states and 742 transitions. [2024-11-20 09:00:39,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 09:00:39,513 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 742 transitions. [2024-11-20 09:00:39,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-20 09:00:39,517 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:00:39,517 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:00:39,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 09:00:39,518 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:00:39,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:00:39,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1371141893, now seen corresponding path program 1 times [2024-11-20 09:00:39,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:00:39,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453531755] [2024-11-20 09:00:39,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:00:39,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:00:39,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:40,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:00:40,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:40,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:00:40,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:40,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:00:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:40,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:00:40,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:40,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:00:40,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:40,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:00:40,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:40,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:00:40,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:40,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:00:40,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:40,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:00:40,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:40,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:00:40,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:40,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:00:40,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:40,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:00:40,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:40,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:00:40,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:40,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:00:40,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:40,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:00:40,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:40,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:00:40,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:40,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:00:40,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:40,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:00:40,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:40,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:00:40,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:40,589 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:00:40,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:00:40,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453531755] [2024-11-20 09:00:40,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453531755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:00:40,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:00:40,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 09:00:40,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743281845] [2024-11-20 09:00:40,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:00:40,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 09:00:40,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:00:40,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 09:00:40,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-11-20 09:00:40,593 INFO L87 Difference]: Start difference. First operand 567 states and 742 transitions. Second operand has 12 states, 11 states have (on average 5.090909090909091) internal successors, (56), 12 states have internal predecessors, (56), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 09:00:41,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:00:41,487 INFO L93 Difference]: Finished difference Result 1244 states and 1638 transitions. [2024-11-20 09:00:41,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 09:00:41,488 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.090909090909091) internal successors, (56), 12 states have internal predecessors, (56), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 148 [2024-11-20 09:00:41,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:00:41,491 INFO L225 Difference]: With dead ends: 1244 [2024-11-20 09:00:41,491 INFO L226 Difference]: Without dead ends: 705 [2024-11-20 09:00:41,497 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2024-11-20 09:00:41,497 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 84 mSDsluCounter, 1152 mSDsCounter, 0 mSdLazyCounter, 1004 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 1322 SdHoareTripleChecker+Invalid, 1010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-20 09:00:41,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 1322 Invalid, 1010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1004 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-20 09:00:41,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2024-11-20 09:00:41,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 701. [2024-11-20 09:00:41,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 575 states have (on average 1.2469565217391305) internal successors, (717), 584 states have internal predecessors, (717), 104 states have call successors, (104), 21 states have call predecessors, (104), 21 states have return successors, (104), 95 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-20 09:00:41,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 925 transitions. [2024-11-20 09:00:41,556 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 925 transitions. Word has length 148 [2024-11-20 09:00:41,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:00:41,556 INFO L471 AbstractCegarLoop]: Abstraction has 701 states and 925 transitions. [2024-11-20 09:00:41,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.090909090909091) internal successors, (56), 12 states have internal predecessors, (56), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 09:00:41,556 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 925 transitions. [2024-11-20 09:00:41,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-20 09:00:41,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:00:41,561 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:00:41,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-20 09:00:41,562 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:00:41,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:00:41,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1462895876, now seen corresponding path program 1 times [2024-11-20 09:00:41,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:00:41,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988786610] [2024-11-20 09:00:41,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:00:41,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:00:41,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:44,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:00:44,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:44,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:00:44,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:44,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:00:44,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:44,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:00:44,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:44,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:00:44,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:44,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:00:44,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:44,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:00:44,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:44,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:00:44,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:44,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:00:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:44,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:00:44,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:44,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:00:44,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:44,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:00:44,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:44,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:00:44,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:44,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:00:44,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:44,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:00:44,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:44,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:00:44,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:44,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:00:44,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:44,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:00:44,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:44,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:00:44,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:44,049 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:00:44,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:00:44,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988786610] [2024-11-20 09:00:44,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988786610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:00:44,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:00:44,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 09:00:44,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811295419] [2024-11-20 09:00:44,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:00:44,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 09:00:44,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:00:44,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 09:00:44,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-20 09:00:44,052 INFO L87 Difference]: Start difference. First operand 701 states and 925 transitions. Second operand has 12 states, 9 states have (on average 6.333333333333333) internal successors, (57), 12 states have internal predecessors, (57), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-20 09:00:45,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:00:45,005 INFO L93 Difference]: Finished difference Result 1657 states and 2181 transitions. [2024-11-20 09:00:45,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 09:00:45,006 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 6.333333333333333) internal successors, (57), 12 states have internal predecessors, (57), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 149 [2024-11-20 09:00:45,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:00:45,010 INFO L225 Difference]: With dead ends: 1657 [2024-11-20 09:00:45,010 INFO L226 Difference]: Without dead ends: 984 [2024-11-20 09:00:45,012 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2024-11-20 09:00:45,012 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 173 mSDsluCounter, 911 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-20 09:00:45,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 1048 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-20 09:00:45,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2024-11-20 09:00:45,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 775. [2024-11-20 09:00:45,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 775 states, 643 states have (on average 1.2426127527216173) internal successors, (799), 654 states have internal predecessors, (799), 108 states have call successors, (108), 23 states have call predecessors, (108), 23 states have return successors, (108), 97 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-20 09:00:45,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 775 states to 775 states and 1015 transitions. [2024-11-20 09:00:45,055 INFO L78 Accepts]: Start accepts. Automaton has 775 states and 1015 transitions. Word has length 149 [2024-11-20 09:00:45,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:00:45,055 INFO L471 AbstractCegarLoop]: Abstraction has 775 states and 1015 transitions. [2024-11-20 09:00:45,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 6.333333333333333) internal successors, (57), 12 states have internal predecessors, (57), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-20 09:00:45,056 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states and 1015 transitions. [2024-11-20 09:00:45,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-20 09:00:45,057 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:00:45,057 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:00:45,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-20 09:00:45,058 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:00:45,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:00:45,058 INFO L85 PathProgramCache]: Analyzing trace with hash -2122814915, now seen corresponding path program 1 times [2024-11-20 09:00:45,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:00:45,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808529763] [2024-11-20 09:00:45,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:00:45,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:00:45,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:45,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:00:45,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:45,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:00:45,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:45,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:00:45,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:45,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:00:45,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:45,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:00:45,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:45,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:00:45,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:45,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:00:45,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:45,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:00:45,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:45,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:00:45,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:45,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:00:45,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:45,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:00:45,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:45,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:00:45,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:45,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:00:45,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:45,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:00:45,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:45,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:00:45,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:45,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:00:45,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:45,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:00:45,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:45,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:00:45,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:45,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:00:45,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:45,610 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:00:45,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:00:45,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808529763] [2024-11-20 09:00:45,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808529763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:00:45,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:00:45,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 09:00:45,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200790496] [2024-11-20 09:00:45,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:00:45,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 09:00:45,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:00:45,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 09:00:45,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 09:00:45,612 INFO L87 Difference]: Start difference. First operand 775 states and 1015 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 09:00:45,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:00:45,874 INFO L93 Difference]: Finished difference Result 1440 states and 1883 transitions. [2024-11-20 09:00:45,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 09:00:45,874 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 149 [2024-11-20 09:00:45,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:00:45,877 INFO L225 Difference]: With dead ends: 1440 [2024-11-20 09:00:45,877 INFO L226 Difference]: Without dead ends: 693 [2024-11-20 09:00:45,879 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-20 09:00:45,879 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 51 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 09:00:45,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 557 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 09:00:45,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2024-11-20 09:00:45,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 691. [2024-11-20 09:00:45,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 563 states have (on average 1.2238010657193605) internal successors, (689), 572 states have internal predecessors, (689), 104 states have call successors, (104), 23 states have call predecessors, (104), 23 states have return successors, (104), 95 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-20 09:00:45,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 897 transitions. [2024-11-20 09:00:45,918 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 897 transitions. Word has length 149 [2024-11-20 09:00:45,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:00:45,919 INFO L471 AbstractCegarLoop]: Abstraction has 691 states and 897 transitions. [2024-11-20 09:00:45,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 09:00:45,919 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 897 transitions. [2024-11-20 09:00:45,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-20 09:00:45,921 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:00:45,921 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:00:45,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-20 09:00:45,921 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:00:45,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:00:45,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1261388487, now seen corresponding path program 1 times [2024-11-20 09:00:45,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:00:45,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334513988] [2024-11-20 09:00:45,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:00:45,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:00:45,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:46,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:00:46,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:46,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:00:46,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:46,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:00:46,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:46,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:00:46,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:46,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:00:46,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:46,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:00:46,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:46,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:00:46,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:46,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:00:46,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:46,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:00:46,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:46,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:00:46,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:46,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:00:46,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:46,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:00:46,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:46,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:00:46,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:46,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:00:46,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:46,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:00:46,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:46,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:00:46,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:46,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:00:46,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:46,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:00:46,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:46,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:00:46,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:46,826 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:00:46,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:00:46,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334513988] [2024-11-20 09:00:46,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334513988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:00:46,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:00:46,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-20 09:00:46,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752019255] [2024-11-20 09:00:46,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:00:46,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 09:00:46,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:00:46,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 09:00:46,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-20 09:00:46,829 INFO L87 Difference]: Start difference. First operand 691 states and 897 transitions. Second operand has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 09:00:47,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:00:47,409 INFO L93 Difference]: Finished difference Result 1378 states and 1784 transitions. [2024-11-20 09:00:47,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 09:00:47,410 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 150 [2024-11-20 09:00:47,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:00:47,413 INFO L225 Difference]: With dead ends: 1378 [2024-11-20 09:00:47,413 INFO L226 Difference]: Without dead ends: 715 [2024-11-20 09:00:47,415 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-11-20 09:00:47,415 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 71 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 09:00:47,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 1248 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 09:00:47,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2024-11-20 09:00:47,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 665. [2024-11-20 09:00:47,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 541 states have (on average 1.212569316081331) internal successors, (656), 549 states have internal predecessors, (656), 98 states have call successors, (98), 25 states have call predecessors, (98), 25 states have return successors, (98), 90 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-20 09:00:47,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 852 transitions. [2024-11-20 09:00:47,459 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 852 transitions. Word has length 150 [2024-11-20 09:00:47,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:00:47,460 INFO L471 AbstractCegarLoop]: Abstraction has 665 states and 852 transitions. [2024-11-20 09:00:47,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 09:00:47,460 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 852 transitions. [2024-11-20 09:00:47,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-20 09:00:47,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:00:47,461 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:00:47,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-20 09:00:47,462 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:00:47,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:00:47,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1116431264, now seen corresponding path program 1 times [2024-11-20 09:00:47,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:00:47,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386360568] [2024-11-20 09:00:47,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:00:47,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:00:47,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:50,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:00:50,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:50,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:00:50,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:50,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:00:50,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:50,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:00:50,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:50,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:00:50,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:50,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:00:50,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:50,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:00:50,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:50,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:00:50,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:50,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:00:50,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:50,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:00:50,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:50,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:00:50,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:50,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:00:50,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:50,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:00:50,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:50,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:00:50,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:50,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:00:50,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:50,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:00:50,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:50,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:00:50,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:50,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:00:50,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:50,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:00:50,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:50,542 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:00:50,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:00:50,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386360568] [2024-11-20 09:00:50,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386360568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:00:50,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:00:50,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-20 09:00:50,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437068442] [2024-11-20 09:00:50,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:00:50,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-20 09:00:50,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:00:50,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-20 09:00:50,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-11-20 09:00:50,544 INFO L87 Difference]: Start difference. First operand 665 states and 852 transitions. Second operand has 15 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 15 states have internal predecessors, (58), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-20 09:00:55,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 09:00:56,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:00:56,953 INFO L93 Difference]: Finished difference Result 1513 states and 1944 transitions. [2024-11-20 09:00:56,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 09:00:56,954 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 15 states have internal predecessors, (58), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) Word has length 150 [2024-11-20 09:00:56,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:00:56,962 INFO L225 Difference]: With dead ends: 1513 [2024-11-20 09:00:56,962 INFO L226 Difference]: Without dead ends: 876 [2024-11-20 09:00:56,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2024-11-20 09:00:56,964 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 160 mSDsluCounter, 1037 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2024-11-20 09:00:56,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 1192 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1257 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2024-11-20 09:00:56,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2024-11-20 09:00:57,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 737. [2024-11-20 09:00:57,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 610 states have (on average 1.2262295081967214) internal successors, (748), 619 states have internal predecessors, (748), 100 states have call successors, (100), 26 states have call predecessors, (100), 26 states have return successors, (100), 91 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-20 09:00:57,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 948 transitions. [2024-11-20 09:00:57,055 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 948 transitions. Word has length 150 [2024-11-20 09:00:57,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:00:57,056 INFO L471 AbstractCegarLoop]: Abstraction has 737 states and 948 transitions. [2024-11-20 09:00:57,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 15 states have internal predecessors, (58), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-20 09:00:57,056 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 948 transitions. [2024-11-20 09:00:57,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-20 09:00:57,057 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:00:57,057 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:00:57,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-20 09:00:57,058 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:00:57,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:00:57,059 INFO L85 PathProgramCache]: Analyzing trace with hash 95362910, now seen corresponding path program 1 times [2024-11-20 09:00:57,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:00:57,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043989] [2024-11-20 09:00:57,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:00:57,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:00:57,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:57,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:00:57,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:57,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:00:57,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:57,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:00:57,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:57,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:00:57,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:57,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:00:57,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:57,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:00:57,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:57,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:00:57,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:57,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:00:57,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:57,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:00:57,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:57,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:00:57,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:57,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:00:57,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:57,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:00:57,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:57,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:00:57,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:57,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:00:57,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:57,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:00:57,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:57,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:00:57,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:57,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:00:57,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:57,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:00:57,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:57,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:00:57,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:57,949 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:00:57,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:00:57,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043989] [2024-11-20 09:00:57,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:00:57,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:00:57,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 09:00:57,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219417866] [2024-11-20 09:00:57,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:00:57,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 09:00:57,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:00:57,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 09:00:57,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-20 09:00:57,954 INFO L87 Difference]: Start difference. First operand 737 states and 948 transitions. Second operand has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-20 09:00:58,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:00:58,446 INFO L93 Difference]: Finished difference Result 1607 states and 2070 transitions. [2024-11-20 09:00:58,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 09:00:58,447 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 150 [2024-11-20 09:00:58,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:00:58,452 INFO L225 Difference]: With dead ends: 1607 [2024-11-20 09:00:58,452 INFO L226 Difference]: Without dead ends: 898 [2024-11-20 09:00:58,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-20 09:00:58,454 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 56 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 09:00:58,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 650 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 09:00:58,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2024-11-20 09:00:58,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 766. [2024-11-20 09:00:58,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 639 states have (on average 1.2269170579029733) internal successors, (784), 648 states have internal predecessors, (784), 100 states have call successors, (100), 26 states have call predecessors, (100), 26 states have return successors, (100), 91 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-20 09:00:58,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 984 transitions. [2024-11-20 09:00:58,511 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 984 transitions. Word has length 150 [2024-11-20 09:00:58,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:00:58,512 INFO L471 AbstractCegarLoop]: Abstraction has 766 states and 984 transitions. [2024-11-20 09:00:58,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-20 09:00:58,512 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 984 transitions. [2024-11-20 09:00:58,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-20 09:00:58,514 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:00:58,514 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:00:58,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-20 09:00:58,515 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:00:58,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:00:58,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1934079714, now seen corresponding path program 1 times [2024-11-20 09:00:58,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:00:58,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436150864] [2024-11-20 09:00:58,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:00:58,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:00:58,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:59,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:00:59,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:59,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:00:59,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:59,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:00:59,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:59,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:00:59,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:59,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:00:59,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:59,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:00:59,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:59,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:00:59,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:59,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:00:59,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:59,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:00:59,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:59,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:00:59,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:59,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:00:59,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:59,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:00:59,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:59,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:00:59,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:59,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:00:59,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:59,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:00:59,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:59,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:00:59,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:59,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:00:59,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:59,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:00:59,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:59,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:00:59,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:00:59,974 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:00:59,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:00:59,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436150864] [2024-11-20 09:00:59,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436150864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:00:59,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:00:59,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-20 09:00:59,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676021683] [2024-11-20 09:00:59,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:00:59,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-20 09:00:59,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:00:59,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-20 09:00:59,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2024-11-20 09:00:59,976 INFO L87 Difference]: Start difference. First operand 766 states and 984 transitions. Second operand has 14 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 14 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-20 09:01:01,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:01:01,292 INFO L93 Difference]: Finished difference Result 1684 states and 2159 transitions. [2024-11-20 09:01:01,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 09:01:01,292 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 14 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 150 [2024-11-20 09:01:01,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:01:01,297 INFO L225 Difference]: With dead ends: 1684 [2024-11-20 09:01:01,297 INFO L226 Difference]: Without dead ends: 946 [2024-11-20 09:01:01,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 52 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2024-11-20 09:01:01,299 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 107 mSDsluCounter, 1479 mSDsCounter, 0 mSdLazyCounter, 1548 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 1678 SdHoareTripleChecker+Invalid, 1552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-20 09:01:01,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 1678 Invalid, 1552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1548 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-20 09:01:01,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2024-11-20 09:01:01,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 764. [2024-11-20 09:01:01,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 764 states, 637 states have (on average 1.2244897959183674) internal successors, (780), 646 states have internal predecessors, (780), 100 states have call successors, (100), 26 states have call predecessors, (100), 26 states have return successors, (100), 91 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-20 09:01:01,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 764 states and 980 transitions. [2024-11-20 09:01:01,366 INFO L78 Accepts]: Start accepts. Automaton has 764 states and 980 transitions. Word has length 150 [2024-11-20 09:01:01,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:01:01,366 INFO L471 AbstractCegarLoop]: Abstraction has 764 states and 980 transitions. [2024-11-20 09:01:01,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 14 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-20 09:01:01,366 INFO L276 IsEmpty]: Start isEmpty. Operand 764 states and 980 transitions. [2024-11-20 09:01:01,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-20 09:01:01,367 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:01:01,367 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:01,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-20 09:01:01,368 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:01:01,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:01:01,368 INFO L85 PathProgramCache]: Analyzing trace with hash -2137056724, now seen corresponding path program 1 times [2024-11-20 09:01:01,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:01:01,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477515289] [2024-11-20 09:01:01,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:01:01,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:01:01,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:02,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:01:02,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:02,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:01:02,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:02,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:01:02,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:02,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:01:02,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:02,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:01:02,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:02,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:01:02,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:02,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:01:02,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:02,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:01:02,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:02,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:01:02,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:02,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:01:02,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:02,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:01:02,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:02,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:01:02,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:02,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:01:02,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:02,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:01:02,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:02,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:01:02,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:02,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:01:02,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:02,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:01:02,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:02,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:01:02,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:02,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:01:02,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:02,095 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:01:02,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:01:02,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477515289] [2024-11-20 09:01:02,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477515289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:01:02,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:01:02,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 09:01:02,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665227731] [2024-11-20 09:01:02,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:01:02,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 09:01:02,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:01:02,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 09:01:02,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-20 09:01:02,096 INFO L87 Difference]: Start difference. First operand 764 states and 980 transitions. Second operand has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-20 09:01:02,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:01:02,511 INFO L93 Difference]: Finished difference Result 1592 states and 2041 transitions. [2024-11-20 09:01:02,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 09:01:02,511 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 150 [2024-11-20 09:01:02,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:01:02,515 INFO L225 Difference]: With dead ends: 1592 [2024-11-20 09:01:02,515 INFO L226 Difference]: Without dead ends: 856 [2024-11-20 09:01:02,517 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-20 09:01:02,517 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 54 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 09:01:02,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 649 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 09:01:02,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2024-11-20 09:01:02,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 770. [2024-11-20 09:01:02,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 770 states, 643 states have (on average 1.223950233281493) internal successors, (787), 652 states have internal predecessors, (787), 100 states have call successors, (100), 26 states have call predecessors, (100), 26 states have return successors, (100), 91 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-20 09:01:02,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 987 transitions. [2024-11-20 09:01:02,562 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 987 transitions. Word has length 150 [2024-11-20 09:01:02,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:01:02,562 INFO L471 AbstractCegarLoop]: Abstraction has 770 states and 987 transitions. [2024-11-20 09:01:02,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-20 09:01:02,562 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 987 transitions. [2024-11-20 09:01:02,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-20 09:01:02,563 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:01:02,563 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:02,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-20 09:01:02,564 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:01:02,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:01:02,564 INFO L85 PathProgramCache]: Analyzing trace with hash -857193046, now seen corresponding path program 1 times [2024-11-20 09:01:02,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:01:02,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270974536] [2024-11-20 09:01:02,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:01:02,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:01:02,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:04,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:01:04,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:04,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:01:04,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:04,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:01:04,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:04,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:01:04,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:04,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:01:04,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:04,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:01:04,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:04,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:01:04,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:04,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:01:04,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:04,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:01:04,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:04,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:01:04,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:04,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:01:04,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:04,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:01:04,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:04,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:01:04,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:04,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:01:04,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:04,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:01:04,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:04,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:01:04,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:04,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:01:04,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:04,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:01:04,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:04,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:01:04,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:04,222 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:01:04,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:01:04,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270974536] [2024-11-20 09:01:04,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270974536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:01:04,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:01:04,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-20 09:01:04,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520837613] [2024-11-20 09:01:04,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:01:04,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-20 09:01:04,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:01:04,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-20 09:01:04,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2024-11-20 09:01:04,224 INFO L87 Difference]: Start difference. First operand 770 states and 987 transitions. Second operand has 16 states, 12 states have (on average 4.833333333333333) internal successors, (58), 16 states have internal predecessors, (58), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-20 09:01:05,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:01:05,463 INFO L93 Difference]: Finished difference Result 1690 states and 2158 transitions. [2024-11-20 09:01:05,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-20 09:01:05,464 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 12 states have (on average 4.833333333333333) internal successors, (58), 16 states have internal predecessors, (58), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) Word has length 150 [2024-11-20 09:01:05,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:01:05,468 INFO L225 Difference]: With dead ends: 1690 [2024-11-20 09:01:05,468 INFO L226 Difference]: Without dead ends: 948 [2024-11-20 09:01:05,470 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2024-11-20 09:01:05,470 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 135 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 1334 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 1290 SdHoareTripleChecker+Invalid, 1345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-20 09:01:05,470 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 1290 Invalid, 1345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1334 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-20 09:01:05,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-11-20 09:01:05,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 782. [2024-11-20 09:01:05,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 655 states have (on average 1.2229007633587787) internal successors, (801), 664 states have internal predecessors, (801), 100 states have call successors, (100), 26 states have call predecessors, (100), 26 states have return successors, (100), 91 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-20 09:01:05,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1001 transitions. [2024-11-20 09:01:05,518 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1001 transitions. Word has length 150 [2024-11-20 09:01:05,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:01:05,518 INFO L471 AbstractCegarLoop]: Abstraction has 782 states and 1001 transitions. [2024-11-20 09:01:05,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 12 states have (on average 4.833333333333333) internal successors, (58), 16 states have internal predecessors, (58), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-20 09:01:05,519 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1001 transitions. [2024-11-20 09:01:05,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-20 09:01:05,520 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:01:05,520 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:05,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-20 09:01:05,520 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:01:05,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:01:05,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1076047764, now seen corresponding path program 1 times [2024-11-20 09:01:05,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:01:05,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452062931] [2024-11-20 09:01:05,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:01:05,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:01:05,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:06,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:01:06,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:06,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:01:06,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:06,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:01:06,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:06,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:01:06,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:06,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:01:06,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:06,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:01:06,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:06,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:01:06,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:06,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:01:06,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:06,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:01:06,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:06,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:01:06,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:06,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:01:06,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:06,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:01:06,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:06,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:01:06,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:06,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:01:06,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:06,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:01:06,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:06,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:01:06,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:06,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:01:06,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:06,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:01:06,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:06,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:01:06,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:06,972 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:01:06,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:01:06,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452062931] [2024-11-20 09:01:06,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452062931] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:01:06,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:01:06,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-20 09:01:06,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232664379] [2024-11-20 09:01:06,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:01:06,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-20 09:01:06,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:01:06,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-20 09:01:06,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2024-11-20 09:01:06,974 INFO L87 Difference]: Start difference. First operand 782 states and 1001 transitions. Second operand has 15 states, 12 states have (on average 4.833333333333333) internal successors, (58), 15 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-20 09:01:08,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:01:08,148 INFO L93 Difference]: Finished difference Result 1712 states and 2182 transitions. [2024-11-20 09:01:08,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 09:01:08,148 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 4.833333333333333) internal successors, (58), 15 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 150 [2024-11-20 09:01:08,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:01:08,157 INFO L225 Difference]: With dead ends: 1712 [2024-11-20 09:01:08,157 INFO L226 Difference]: Without dead ends: 958 [2024-11-20 09:01:08,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2024-11-20 09:01:08,159 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 110 mSDsluCounter, 1134 mSDsCounter, 0 mSdLazyCounter, 1332 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 1305 SdHoareTripleChecker+Invalid, 1343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-20 09:01:08,159 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 1305 Invalid, 1343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1332 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-20 09:01:08,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2024-11-20 09:01:08,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 780. [2024-11-20 09:01:08,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 780 states, 653 states have (on average 1.22052067381317) internal successors, (797), 662 states have internal predecessors, (797), 100 states have call successors, (100), 26 states have call predecessors, (100), 26 states have return successors, (100), 91 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-20 09:01:08,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 997 transitions. [2024-11-20 09:01:08,209 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 997 transitions. Word has length 150 [2024-11-20 09:01:08,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:01:08,212 INFO L471 AbstractCegarLoop]: Abstraction has 780 states and 997 transitions. [2024-11-20 09:01:08,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 4.833333333333333) internal successors, (58), 15 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-20 09:01:08,212 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 997 transitions. [2024-11-20 09:01:08,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-20 09:01:08,213 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:01:08,213 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:08,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-20 09:01:08,213 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:01:08,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:01:08,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1792332638, now seen corresponding path program 1 times [2024-11-20 09:01:08,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:01:08,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614729320] [2024-11-20 09:01:08,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:01:08,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:01:08,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:09,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:01:09,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:09,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:01:09,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:09,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:01:09,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:09,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:01:09,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:09,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:01:09,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:09,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:01:09,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:09,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:01:09,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:09,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:01:09,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:09,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:01:09,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:09,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:01:09,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:09,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:01:09,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:09,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:01:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:09,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:01:09,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:09,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:01:09,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:09,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:01:09,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:09,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:01:09,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:09,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:01:09,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:09,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:01:09,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:09,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:01:09,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:09,076 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:01:09,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:01:09,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614729320] [2024-11-20 09:01:09,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614729320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:01:09,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:01:09,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 09:01:09,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482779989] [2024-11-20 09:01:09,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:01:09,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 09:01:09,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:01:09,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 09:01:09,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-20 09:01:09,077 INFO L87 Difference]: Start difference. First operand 780 states and 997 transitions. Second operand has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-20 09:01:09,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:01:09,523 INFO L93 Difference]: Finished difference Result 1622 states and 2068 transitions. [2024-11-20 09:01:09,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 09:01:09,524 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 150 [2024-11-20 09:01:09,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:01:09,529 INFO L225 Difference]: With dead ends: 1622 [2024-11-20 09:01:09,530 INFO L226 Difference]: Without dead ends: 870 [2024-11-20 09:01:09,531 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-20 09:01:09,531 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 58 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 09:01:09,533 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 675 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 09:01:09,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2024-11-20 09:01:09,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 742. [2024-11-20 09:01:09,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 617 states have (on average 1.2123176661264181) internal successors, (748), 625 states have internal predecessors, (748), 98 states have call successors, (98), 26 states have call predecessors, (98), 26 states have return successors, (98), 90 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-20 09:01:09,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 944 transitions. [2024-11-20 09:01:09,616 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 944 transitions. Word has length 150 [2024-11-20 09:01:09,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:01:09,616 INFO L471 AbstractCegarLoop]: Abstraction has 742 states and 944 transitions. [2024-11-20 09:01:09,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-20 09:01:09,616 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 944 transitions. [2024-11-20 09:01:09,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-20 09:01:09,618 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:01:09,619 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:09,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-20 09:01:09,619 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:01:09,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:01:09,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1481566304, now seen corresponding path program 1 times [2024-11-20 09:01:09,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:01:09,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493518014] [2024-11-20 09:01:09,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:01:09,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:01:09,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:10,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:01:10,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:10,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:01:10,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:10,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:01:10,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:10,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:01:10,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:10,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:01:10,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:10,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:01:10,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:10,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:01:10,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:10,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:01:10,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:10,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:01:10,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:10,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:01:10,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:10,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:01:10,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:10,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:01:10,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:10,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:01:10,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:10,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:01:10,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:10,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:01:10,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:10,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:01:10,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:10,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:01:10,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:10,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:01:10,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:10,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:01:10,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:10,034 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:01:10,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:01:10,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493518014] [2024-11-20 09:01:10,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493518014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:01:10,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:01:10,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 09:01:10,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100345261] [2024-11-20 09:01:10,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:01:10,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 09:01:10,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:01:10,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 09:01:10,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 09:01:10,036 INFO L87 Difference]: Start difference. First operand 742 states and 944 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 09:01:10,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:01:10,372 INFO L93 Difference]: Finished difference Result 1584 states and 2011 transitions. [2024-11-20 09:01:10,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 09:01:10,373 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 150 [2024-11-20 09:01:10,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:01:10,376 INFO L225 Difference]: With dead ends: 1584 [2024-11-20 09:01:10,376 INFO L226 Difference]: Without dead ends: 870 [2024-11-20 09:01:10,378 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-20 09:01:10,378 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 64 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 09:01:10,378 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 463 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 09:01:10,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2024-11-20 09:01:10,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 742. [2024-11-20 09:01:10,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 617 states have (on average 1.2106969205834683) internal successors, (747), 625 states have internal predecessors, (747), 98 states have call successors, (98), 26 states have call predecessors, (98), 26 states have return successors, (98), 90 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-20 09:01:10,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 943 transitions. [2024-11-20 09:01:10,421 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 943 transitions. Word has length 150 [2024-11-20 09:01:10,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:01:10,421 INFO L471 AbstractCegarLoop]: Abstraction has 742 states and 943 transitions. [2024-11-20 09:01:10,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 09:01:10,422 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 943 transitions. [2024-11-20 09:01:10,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-20 09:01:10,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:01:10,423 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:10,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-20 09:01:10,423 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:01:10,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:01:10,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1543605918, now seen corresponding path program 1 times [2024-11-20 09:01:10,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:01:10,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625620581] [2024-11-20 09:01:10,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:01:10,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:01:10,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:10,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:01:10,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:10,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:01:10,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:10,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:01:10,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:10,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:01:10,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:10,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:01:10,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:10,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:01:10,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:10,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:01:10,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:10,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:01:10,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:10,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:01:10,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:10,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:01:10,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:10,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:01:10,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:10,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:01:10,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:10,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:01:10,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:10,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:01:10,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:10,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:01:10,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:10,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:01:10,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:10,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:01:10,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:10,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:01:10,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:10,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:01:10,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:10,883 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:01:10,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:01:10,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625620581] [2024-11-20 09:01:10,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625620581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:01:10,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:01:10,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 09:01:10,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922264535] [2024-11-20 09:01:10,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:01:10,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 09:01:10,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:01:10,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 09:01:10,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-20 09:01:10,885 INFO L87 Difference]: Start difference. First operand 742 states and 943 transitions. Second operand has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 09:01:11,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:01:11,339 INFO L93 Difference]: Finished difference Result 1567 states and 1988 transitions. [2024-11-20 09:01:11,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 09:01:11,340 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 150 [2024-11-20 09:01:11,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:01:11,343 INFO L225 Difference]: With dead ends: 1567 [2024-11-20 09:01:11,343 INFO L226 Difference]: Without dead ends: 853 [2024-11-20 09:01:11,344 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-20 09:01:11,344 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 66 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 898 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 09:01:11,345 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 898 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 09:01:11,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2024-11-20 09:01:11,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 737. [2024-11-20 09:01:11,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 614 states have (on average 1.206840390879479) internal successors, (741), 622 states have internal predecessors, (741), 96 states have call successors, (96), 26 states have call predecessors, (96), 26 states have return successors, (96), 88 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-20 09:01:11,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 933 transitions. [2024-11-20 09:01:11,393 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 933 transitions. Word has length 150 [2024-11-20 09:01:11,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:01:11,393 INFO L471 AbstractCegarLoop]: Abstraction has 737 states and 933 transitions. [2024-11-20 09:01:11,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 09:01:11,394 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 933 transitions. [2024-11-20 09:01:11,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-20 09:01:11,395 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:01:11,395 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:11,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-20 09:01:11,395 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:01:11,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:01:11,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1549969260, now seen corresponding path program 1 times [2024-11-20 09:01:11,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:01:11,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331906983] [2024-11-20 09:01:11,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:01:11,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:01:11,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:11,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:01:11,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:11,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:01:11,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:11,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:01:11,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:11,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:01:11,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:11,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:01:11,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:11,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:01:11,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:11,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:01:11,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:11,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:01:11,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:11,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:01:11,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:11,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:01:11,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:11,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:01:11,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:11,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:01:11,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:11,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:01:11,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:11,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:01:11,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:11,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:01:11,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:11,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:01:11,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:11,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:01:11,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:11,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:01:11,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:11,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:01:11,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:11,887 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:01:11,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:01:11,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331906983] [2024-11-20 09:01:11,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331906983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:01:11,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:01:11,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 09:01:11,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467627790] [2024-11-20 09:01:11,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:01:11,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 09:01:11,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:01:11,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 09:01:11,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-20 09:01:11,889 INFO L87 Difference]: Start difference. First operand 737 states and 933 transitions. Second operand has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 09:01:12,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:01:12,456 INFO L93 Difference]: Finished difference Result 1554 states and 1965 transitions. [2024-11-20 09:01:12,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 09:01:12,456 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 150 [2024-11-20 09:01:12,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:01:12,459 INFO L225 Difference]: With dead ends: 1554 [2024-11-20 09:01:12,459 INFO L226 Difference]: Without dead ends: 841 [2024-11-20 09:01:12,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-20 09:01:12,461 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 59 mSDsluCounter, 737 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 09:01:12,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 917 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 746 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 09:01:12,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2024-11-20 09:01:12,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 733. [2024-11-20 09:01:12,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 733 states, 610 states have (on average 1.2049180327868851) internal successors, (735), 618 states have internal predecessors, (735), 96 states have call successors, (96), 26 states have call predecessors, (96), 26 states have return successors, (96), 88 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-20 09:01:12,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 927 transitions. [2024-11-20 09:01:12,508 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 927 transitions. Word has length 150 [2024-11-20 09:01:12,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:01:12,509 INFO L471 AbstractCegarLoop]: Abstraction has 733 states and 927 transitions. [2024-11-20 09:01:12,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 09:01:12,509 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 927 transitions. [2024-11-20 09:01:12,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-20 09:01:12,510 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:01:12,510 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:12,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-20 09:01:12,510 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:01:12,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:01:12,510 INFO L85 PathProgramCache]: Analyzing trace with hash 2053589535, now seen corresponding path program 1 times [2024-11-20 09:01:12,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:01:12,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996619262] [2024-11-20 09:01:12,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:01:12,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:01:12,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:12,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:01:12,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:12,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:01:12,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:12,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:01:12,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:12,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:01:12,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:12,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:01:12,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:12,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:01:12,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:12,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:01:12,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:12,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:01:12,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:12,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:01:12,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:12,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:01:12,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:12,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:01:12,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:12,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:01:12,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:12,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:01:12,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:12,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:01:12,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:12,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:01:12,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:12,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:01:12,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:12,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:01:12,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:12,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:01:12,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:12,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:01:12,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:12,933 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:01:12,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:01:12,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996619262] [2024-11-20 09:01:12,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996619262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:01:12,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:01:12,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 09:01:12,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356610505] [2024-11-20 09:01:12,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:01:12,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 09:01:12,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:01:12,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 09:01:12,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 09:01:12,935 INFO L87 Difference]: Start difference. First operand 733 states and 927 transitions. Second operand has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 09:01:13,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:01:13,275 INFO L93 Difference]: Finished difference Result 1443 states and 1822 transitions. [2024-11-20 09:01:13,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 09:01:13,276 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 151 [2024-11-20 09:01:13,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:01:13,279 INFO L225 Difference]: With dead ends: 1443 [2024-11-20 09:01:13,279 INFO L226 Difference]: Without dead ends: 734 [2024-11-20 09:01:13,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-20 09:01:13,281 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 76 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 09:01:13,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 529 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 09:01:13,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2024-11-20 09:01:13,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 663. [2024-11-20 09:01:13,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 663 states, 565 states have (on average 1.2123893805309736) internal successors, (685), 572 states have internal predecessors, (685), 75 states have call successors, (75), 22 states have call predecessors, (75), 22 states have return successors, (75), 68 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-20 09:01:13,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 835 transitions. [2024-11-20 09:01:13,328 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 835 transitions. Word has length 151 [2024-11-20 09:01:13,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:01:13,329 INFO L471 AbstractCegarLoop]: Abstraction has 663 states and 835 transitions. [2024-11-20 09:01:13,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 09:01:13,329 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 835 transitions. [2024-11-20 09:01:13,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-20 09:01:13,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:01:13,330 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:13,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-20 09:01:13,330 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:01:13,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:01:13,331 INFO L85 PathProgramCache]: Analyzing trace with hash -2009934197, now seen corresponding path program 1 times [2024-11-20 09:01:13,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:01:13,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702727713] [2024-11-20 09:01:13,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:01:13,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:01:13,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:13,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:01:13,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:13,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:01:13,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:13,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:01:13,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:13,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:01:13,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:13,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:01:13,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:13,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:01:13,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:13,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:01:13,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:13,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:01:13,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:13,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:01:13,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:13,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:01:13,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:13,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:01:13,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:13,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:01:13,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:13,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:01:13,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:13,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:01:13,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:13,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:01:13,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:13,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:01:13,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:13,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:01:13,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:13,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:01:13,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:13,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:01:13,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:13,457 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:01:13,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:01:13,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702727713] [2024-11-20 09:01:13,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702727713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:01:13,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:01:13,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 09:01:13,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475316934] [2024-11-20 09:01:13,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:01:13,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 09:01:13,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:01:13,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 09:01:13,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 09:01:13,458 INFO L87 Difference]: Start difference. First operand 663 states and 835 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 09:01:13,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:01:13,693 INFO L93 Difference]: Finished difference Result 1446 states and 1816 transitions. [2024-11-20 09:01:13,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 09:01:13,694 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-11-20 09:01:13,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:01:13,698 INFO L225 Difference]: With dead ends: 1446 [2024-11-20 09:01:13,698 INFO L226 Difference]: Without dead ends: 786 [2024-11-20 09:01:13,699 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 09:01:13,699 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 55 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 09:01:13,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 480 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 09:01:13,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2024-11-20 09:01:13,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 724. [2024-11-20 09:01:13,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 615 states have (on average 1.2048780487804878) internal successors, (741), 623 states have internal predecessors, (741), 83 states have call successors, (83), 25 states have call predecessors, (83), 25 states have return successors, (83), 75 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-20 09:01:13,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 907 transitions. [2024-11-20 09:01:13,774 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 907 transitions. Word has length 151 [2024-11-20 09:01:13,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:01:13,774 INFO L471 AbstractCegarLoop]: Abstraction has 724 states and 907 transitions. [2024-11-20 09:01:13,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 09:01:13,774 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 907 transitions. [2024-11-20 09:01:13,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-20 09:01:13,775 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:01:13,775 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:13,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-20 09:01:13,776 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:01:13,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:01:13,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1587232371, now seen corresponding path program 1 times [2024-11-20 09:01:13,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:01:13,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599805591] [2024-11-20 09:01:13,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:01:13,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:01:13,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:14,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:01:14,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:14,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:01:14,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:14,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:01:14,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:14,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:01:14,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:14,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:01:14,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:14,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:01:14,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:14,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:01:14,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:14,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:01:14,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:14,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:01:14,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:14,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:01:14,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:14,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:01:14,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:14,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:01:14,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:14,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:01:14,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:14,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:01:14,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:14,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:01:14,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:14,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:01:14,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:14,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:01:14,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:14,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:01:14,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:14,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:01:14,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:14,116 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:01:14,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:01:14,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599805591] [2024-11-20 09:01:14,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599805591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:01:14,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:01:14,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 09:01:14,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142740094] [2024-11-20 09:01:14,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:01:14,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 09:01:14,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:01:14,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 09:01:14,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 09:01:14,118 INFO L87 Difference]: Start difference. First operand 724 states and 907 transitions. Second operand has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 09:01:14,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:01:14,386 INFO L93 Difference]: Finished difference Result 1436 states and 1800 transitions. [2024-11-20 09:01:14,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 09:01:14,387 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 151 [2024-11-20 09:01:14,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:01:14,390 INFO L225 Difference]: With dead ends: 1436 [2024-11-20 09:01:14,391 INFO L226 Difference]: Without dead ends: 715 [2024-11-20 09:01:14,392 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-20 09:01:14,392 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 122 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 09:01:14,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 436 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 09:01:14,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2024-11-20 09:01:14,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 697. [2024-11-20 09:01:14,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 588 states have (on average 1.2040816326530612) internal successors, (708), 596 states have internal predecessors, (708), 83 states have call successors, (83), 25 states have call predecessors, (83), 25 states have return successors, (83), 75 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-20 09:01:14,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 874 transitions. [2024-11-20 09:01:14,441 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 874 transitions. Word has length 151 [2024-11-20 09:01:14,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:01:14,442 INFO L471 AbstractCegarLoop]: Abstraction has 697 states and 874 transitions. [2024-11-20 09:01:14,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 09:01:14,442 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 874 transitions. [2024-11-20 09:01:14,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-20 09:01:14,443 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:01:14,443 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:14,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-20 09:01:14,443 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:01:14,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:01:14,444 INFO L85 PathProgramCache]: Analyzing trace with hash -597916411, now seen corresponding path program 1 times [2024-11-20 09:01:14,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:01:14,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158206294] [2024-11-20 09:01:14,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:01:14,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:01:14,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:16,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:01:16,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:16,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:01:16,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:16,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:01:16,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:16,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:01:16,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:16,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:01:16,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:16,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:01:16,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:16,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:01:16,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:16,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:01:16,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:16,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:01:16,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:16,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:01:16,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:16,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:01:16,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:16,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:01:16,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:16,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:01:16,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:16,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:01:16,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:16,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:01:16,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:16,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:01:16,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:16,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:01:16,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:16,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:01:16,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:16,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:01:16,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:16,408 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:01:16,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:01:16,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158206294] [2024-11-20 09:01:16,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158206294] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:01:16,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:01:16,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 09:01:16,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824345682] [2024-11-20 09:01:16,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:01:16,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 09:01:16,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:01:16,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 09:01:16,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-20 09:01:16,410 INFO L87 Difference]: Start difference. First operand 697 states and 874 transitions. Second operand has 12 states, 9 states have (on average 6.555555555555555) internal successors, (59), 12 states have internal predecessors, (59), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-20 09:01:17,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:01:17,436 INFO L93 Difference]: Finished difference Result 1433 states and 1795 transitions. [2024-11-20 09:01:17,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 09:01:17,436 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 6.555555555555555) internal successors, (59), 12 states have internal predecessors, (59), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 151 [2024-11-20 09:01:17,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:01:17,440 INFO L225 Difference]: With dead ends: 1433 [2024-11-20 09:01:17,440 INFO L226 Difference]: Without dead ends: 739 [2024-11-20 09:01:17,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-20 09:01:17,442 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 53 mSDsluCounter, 872 mSDsCounter, 0 mSdLazyCounter, 1022 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 1024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-20 09:01:17,442 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 1039 Invalid, 1024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1022 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-20 09:01:17,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2024-11-20 09:01:17,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 687. [2024-11-20 09:01:17,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 578 states have (on average 1.2041522491349481) internal successors, (696), 586 states have internal predecessors, (696), 83 states have call successors, (83), 25 states have call predecessors, (83), 25 states have return successors, (83), 75 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-20 09:01:17,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 862 transitions. [2024-11-20 09:01:17,520 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 862 transitions. Word has length 151 [2024-11-20 09:01:17,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:01:17,521 INFO L471 AbstractCegarLoop]: Abstraction has 687 states and 862 transitions. [2024-11-20 09:01:17,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 6.555555555555555) internal successors, (59), 12 states have internal predecessors, (59), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-20 09:01:17,521 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 862 transitions. [2024-11-20 09:01:17,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-20 09:01:17,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:01:17,522 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:17,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-20 09:01:17,522 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:01:17,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:01:17,523 INFO L85 PathProgramCache]: Analyzing trace with hash -164509147, now seen corresponding path program 1 times [2024-11-20 09:01:17,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:01:17,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016092386] [2024-11-20 09:01:17,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:01:17,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:01:17,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:18,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:01:18,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:18,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:01:18,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:18,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:01:18,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:18,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:01:18,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:18,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:01:18,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:18,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:01:18,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:18,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:01:18,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:18,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:01:18,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:18,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:01:18,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:18,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:01:18,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:18,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:01:18,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:18,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:01:18,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:18,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:01:18,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:18,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:01:18,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:18,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:01:18,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:18,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:01:18,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:18,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:01:18,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:18,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:01:18,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:18,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:01:18,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:18,968 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:01:18,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:01:18,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016092386] [2024-11-20 09:01:18,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016092386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:01:18,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:01:18,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 09:01:18,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098683495] [2024-11-20 09:01:18,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:01:18,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 09:01:18,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:01:18,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 09:01:18,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-20 09:01:18,970 INFO L87 Difference]: Start difference. First operand 687 states and 862 transitions. Second operand has 12 states, 9 states have (on average 6.555555555555555) internal successors, (59), 12 states have internal predecessors, (59), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-20 09:01:19,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:01:19,575 INFO L93 Difference]: Finished difference Result 1452 states and 1816 transitions. [2024-11-20 09:01:19,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 09:01:19,575 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 6.555555555555555) internal successors, (59), 12 states have internal predecessors, (59), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 151 [2024-11-20 09:01:19,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:01:19,578 INFO L225 Difference]: With dead ends: 1452 [2024-11-20 09:01:19,578 INFO L226 Difference]: Without dead ends: 768 [2024-11-20 09:01:19,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-20 09:01:19,580 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 50 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 09:01:19,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 893 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 790 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 09:01:19,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2024-11-20 09:01:19,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 676. [2024-11-20 09:01:19,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 567 states have (on average 1.2045855379188712) internal successors, (683), 575 states have internal predecessors, (683), 83 states have call successors, (83), 25 states have call predecessors, (83), 25 states have return successors, (83), 75 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-20 09:01:19,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 849 transitions. [2024-11-20 09:01:19,630 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 849 transitions. Word has length 151 [2024-11-20 09:01:19,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:01:19,631 INFO L471 AbstractCegarLoop]: Abstraction has 676 states and 849 transitions. [2024-11-20 09:01:19,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 6.555555555555555) internal successors, (59), 12 states have internal predecessors, (59), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-20 09:01:19,631 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 849 transitions. [2024-11-20 09:01:19,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-20 09:01:19,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:01:19,632 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:19,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-20 09:01:19,632 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:01:19,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:01:19,633 INFO L85 PathProgramCache]: Analyzing trace with hash 325681333, now seen corresponding path program 1 times [2024-11-20 09:01:19,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:01:19,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112315155] [2024-11-20 09:01:19,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:01:19,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:01:19,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:20,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:01:20,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:20,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:01:20,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:20,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:01:20,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:20,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:01:20,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:20,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:01:20,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:20,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:01:20,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:20,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:01:20,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:20,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:01:20,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:20,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:01:20,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:20,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:01:20,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:20,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:01:20,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:20,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:01:20,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:20,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:01:20,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:20,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:01:20,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:20,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:01:20,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:20,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:01:20,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:20,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:01:20,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:20,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:01:20,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:20,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:01:20,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:20,601 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:01:20,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:01:20,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112315155] [2024-11-20 09:01:20,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112315155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:01:20,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:01:20,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 09:01:20,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910511370] [2024-11-20 09:01:20,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:01:20,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 09:01:20,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:01:20,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 09:01:20,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-20 09:01:20,605 INFO L87 Difference]: Start difference. First operand 676 states and 849 transitions. Second operand has 9 states, 7 states have (on average 8.571428571428571) internal successors, (60), 9 states have internal predecessors, (60), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-20 09:01:20,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:01:20,952 INFO L93 Difference]: Finished difference Result 1765 states and 2209 transitions. [2024-11-20 09:01:20,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 09:01:20,952 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.571428571428571) internal successors, (60), 9 states have internal predecessors, (60), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 152 [2024-11-20 09:01:20,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:01:20,956 INFO L225 Difference]: With dead ends: 1765 [2024-11-20 09:01:20,957 INFO L226 Difference]: Without dead ends: 1092 [2024-11-20 09:01:20,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-20 09:01:20,958 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 51 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 09:01:20,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 639 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 09:01:20,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2024-11-20 09:01:21,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 891. [2024-11-20 09:01:21,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 891 states, 779 states have (on average 1.2015404364569962) internal successors, (936), 788 states have internal predecessors, (936), 85 states have call successors, (85), 26 states have call predecessors, (85), 26 states have return successors, (85), 76 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-20 09:01:21,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1106 transitions. [2024-11-20 09:01:21,019 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1106 transitions. Word has length 152 [2024-11-20 09:01:21,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:01:21,020 INFO L471 AbstractCegarLoop]: Abstraction has 891 states and 1106 transitions. [2024-11-20 09:01:21,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.571428571428571) internal successors, (60), 9 states have internal predecessors, (60), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-20 09:01:21,020 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1106 transitions. [2024-11-20 09:01:21,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-20 09:01:21,022 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:01:21,022 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:21,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-20 09:01:21,023 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:01:21,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:01:21,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1026745911, now seen corresponding path program 1 times [2024-11-20 09:01:21,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:01:21,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893382233] [2024-11-20 09:01:21,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:01:21,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:01:21,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:21,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:01:21,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:21,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:01:21,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:21,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:01:21,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:21,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:01:21,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:21,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:01:21,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:21,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:01:21,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:21,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:01:21,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:21,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:01:21,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:21,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:01:21,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:21,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:01:21,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:21,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:01:21,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:21,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:01:21,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:21,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:01:21,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:21,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:01:21,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:21,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:01:21,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:21,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:01:21,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:21,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:01:21,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:21,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:01:21,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:21,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:01:21,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:21,978 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:01:21,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:01:21,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893382233] [2024-11-20 09:01:21,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893382233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:01:21,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:01:21,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 09:01:21,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100215977] [2024-11-20 09:01:21,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:01:21,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 09:01:21,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:01:21,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 09:01:21,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-20 09:01:21,980 INFO L87 Difference]: Start difference. First operand 891 states and 1106 transitions. Second operand has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 09:01:22,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:01:22,367 INFO L93 Difference]: Finished difference Result 937 states and 1161 transitions. [2024-11-20 09:01:22,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 09:01:22,368 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 152 [2024-11-20 09:01:22,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:01:22,372 INFO L225 Difference]: With dead ends: 937 [2024-11-20 09:01:22,372 INFO L226 Difference]: Without dead ends: 935 [2024-11-20 09:01:22,373 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-20 09:01:22,373 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 47 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 09:01:22,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 673 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 09:01:22,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2024-11-20 09:01:22,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 841. [2024-11-20 09:01:22,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 841 states, 739 states have (on average 1.1975642760487144) internal successors, (885), 746 states have internal predecessors, (885), 77 states have call successors, (77), 24 states have call predecessors, (77), 24 states have return successors, (77), 70 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-20 09:01:22,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1039 transitions. [2024-11-20 09:01:22,432 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1039 transitions. Word has length 152 [2024-11-20 09:01:22,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:01:22,433 INFO L471 AbstractCegarLoop]: Abstraction has 841 states and 1039 transitions. [2024-11-20 09:01:22,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 09:01:22,433 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1039 transitions. [2024-11-20 09:01:22,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-20 09:01:22,435 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:01:22,435 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:22,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-20 09:01:22,435 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:01:22,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:01:22,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1028592953, now seen corresponding path program 1 times [2024-11-20 09:01:22,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:01:22,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341909726] [2024-11-20 09:01:22,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:01:22,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:01:22,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:22,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:01:22,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:22,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:01:22,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:22,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:01:22,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:22,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:01:22,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:22,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:01:22,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:22,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:01:22,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:22,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:01:22,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:22,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:01:22,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:22,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:01:22,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:22,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:01:22,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:22,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:01:22,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:22,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:01:22,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:22,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:01:22,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:22,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:01:22,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:22,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:01:22,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:22,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:01:22,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:22,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:01:22,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:22,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:01:22,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:22,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:01:22,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:22,594 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:01:22,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:01:22,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341909726] [2024-11-20 09:01:22,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341909726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:01:22,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:01:22,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 09:01:22,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799716401] [2024-11-20 09:01:22,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:01:22,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 09:01:22,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:01:22,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 09:01:22,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 09:01:22,596 INFO L87 Difference]: Start difference. First operand 841 states and 1039 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 09:01:22,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:01:22,795 INFO L93 Difference]: Finished difference Result 1735 states and 2143 transitions. [2024-11-20 09:01:22,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 09:01:22,795 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-11-20 09:01:22,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:01:22,799 INFO L225 Difference]: With dead ends: 1735 [2024-11-20 09:01:22,799 INFO L226 Difference]: Without dead ends: 897 [2024-11-20 09:01:22,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-20 09:01:22,801 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 85 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 09:01:22,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 500 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 09:01:22,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2024-11-20 09:01:22,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 896. [2024-11-20 09:01:22,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 896 states, 772 states have (on average 1.1787564766839378) internal successors, (910), 780 states have internal predecessors, (910), 94 states have call successors, (94), 29 states have call predecessors, (94), 29 states have return successors, (94), 86 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-20 09:01:22,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1098 transitions. [2024-11-20 09:01:22,864 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1098 transitions. Word has length 152 [2024-11-20 09:01:22,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:01:22,864 INFO L471 AbstractCegarLoop]: Abstraction has 896 states and 1098 transitions. [2024-11-20 09:01:22,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 09:01:22,865 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1098 transitions. [2024-11-20 09:01:22,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-20 09:01:22,866 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:01:22,866 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:22,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-20 09:01:22,866 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:01:22,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:01:22,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1491366981, now seen corresponding path program 1 times [2024-11-20 09:01:22,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:01:22,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567489442] [2024-11-20 09:01:22,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:01:22,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:01:22,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:22,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:01:22,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:22,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:01:22,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:22,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:01:22,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:22,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:01:22,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:22,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:01:22,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:22,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:01:22,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:22,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:01:22,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:22,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:01:22,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:22,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:01:22,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:22,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:01:22,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:22,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:01:22,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:22,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:01:22,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:22,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:01:22,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:22,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:01:22,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:22,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:01:22,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:22,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:01:22,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:22,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:01:22,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:22,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:01:22,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:22,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:01:22,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:22,963 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:01:22,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:01:22,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567489442] [2024-11-20 09:01:22,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567489442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:01:22,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:01:22,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 09:01:22,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924783321] [2024-11-20 09:01:22,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:01:22,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 09:01:22,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:01:22,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 09:01:22,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 09:01:22,965 INFO L87 Difference]: Start difference. First operand 896 states and 1098 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 09:01:23,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:01:23,046 INFO L93 Difference]: Finished difference Result 1762 states and 2161 transitions. [2024-11-20 09:01:23,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 09:01:23,047 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-11-20 09:01:23,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:01:23,050 INFO L225 Difference]: With dead ends: 1762 [2024-11-20 09:01:23,050 INFO L226 Difference]: Without dead ends: 920 [2024-11-20 09:01:23,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 09:01:23,052 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 0 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 09:01:23,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 548 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 09:01:23,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2024-11-20 09:01:23,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 920. [2024-11-20 09:01:23,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 796 states have (on average 1.1733668341708543) internal successors, (934), 804 states have internal predecessors, (934), 94 states have call successors, (94), 29 states have call predecessors, (94), 29 states have return successors, (94), 86 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-20 09:01:23,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1122 transitions. [2024-11-20 09:01:23,116 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1122 transitions. Word has length 152 [2024-11-20 09:01:23,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:01:23,116 INFO L471 AbstractCegarLoop]: Abstraction has 920 states and 1122 transitions. [2024-11-20 09:01:23,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 09:01:23,116 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1122 transitions. [2024-11-20 09:01:23,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-20 09:01:23,117 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:01:23,118 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:23,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-20 09:01:23,118 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:01:23,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:01:23,118 INFO L85 PathProgramCache]: Analyzing trace with hash -820971643, now seen corresponding path program 1 times [2024-11-20 09:01:23,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:01:23,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065718913] [2024-11-20 09:01:23,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:01:23,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:01:23,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:24,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:01:24,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:24,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:01:24,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:24,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:01:24,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:24,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:01:24,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:24,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:01:24,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:24,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:01:24,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:24,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:01:24,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:24,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:01:24,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:24,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:01:24,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:24,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:01:24,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:24,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:01:24,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:24,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:01:24,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:24,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:01:24,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:24,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:01:24,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:24,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:01:24,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:24,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:01:24,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:24,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:01:24,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:24,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:01:24,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:24,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:01:24,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:24,090 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:01:24,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:01:24,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065718913] [2024-11-20 09:01:24,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065718913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:01:24,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:01:24,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-20 09:01:24,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506187799] [2024-11-20 09:01:24,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:01:24,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-20 09:01:24,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:01:24,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-20 09:01:24,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-11-20 09:01:24,092 INFO L87 Difference]: Start difference. First operand 920 states and 1122 transitions. Second operand has 14 states, 12 states have (on average 5.0) internal successors, (60), 14 states have internal predecessors, (60), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-20 09:01:24,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:01:24,841 INFO L93 Difference]: Finished difference Result 1930 states and 2347 transitions. [2024-11-20 09:01:24,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 09:01:24,841 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.0) internal successors, (60), 14 states have internal predecessors, (60), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 152 [2024-11-20 09:01:24,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:01:24,849 INFO L225 Difference]: With dead ends: 1930 [2024-11-20 09:01:24,849 INFO L226 Difference]: Without dead ends: 1064 [2024-11-20 09:01:24,851 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2024-11-20 09:01:24,851 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 54 mSDsluCounter, 1229 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 1381 SdHoareTripleChecker+Invalid, 1044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 09:01:24,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 1381 Invalid, 1044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1040 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 09:01:24,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2024-11-20 09:01:24,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 972. [2024-11-20 09:01:24,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 972 states, 848 states have (on average 1.1757075471698113) internal successors, (997), 856 states have internal predecessors, (997), 94 states have call successors, (94), 29 states have call predecessors, (94), 29 states have return successors, (94), 86 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-20 09:01:24,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1185 transitions. [2024-11-20 09:01:24,927 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1185 transitions. Word has length 152 [2024-11-20 09:01:24,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:01:24,929 INFO L471 AbstractCegarLoop]: Abstraction has 972 states and 1185 transitions. [2024-11-20 09:01:24,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.0) internal successors, (60), 14 states have internal predecessors, (60), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-20 09:01:24,929 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1185 transitions. [2024-11-20 09:01:24,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-20 09:01:24,933 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:01:24,933 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:24,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-20 09:01:24,933 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:01:24,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:01:24,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1330444733, now seen corresponding path program 1 times [2024-11-20 09:01:24,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:01:24,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095479356] [2024-11-20 09:01:24,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:01:24,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:01:24,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:25,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:01:25,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:25,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:01:25,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:25,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:01:25,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:25,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:01:25,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:25,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:01:25,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:25,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:01:25,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:25,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:01:25,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:25,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:01:25,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:25,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:01:25,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:25,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:01:25,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:25,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:01:25,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:25,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:01:25,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:25,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:01:25,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:25,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:01:25,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:25,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:01:25,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:25,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:01:25,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:25,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:01:25,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:25,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:01:25,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:25,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:01:25,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:25,137 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:01:25,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:01:25,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095479356] [2024-11-20 09:01:25,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095479356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:01:25,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:01:25,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 09:01:25,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60269760] [2024-11-20 09:01:25,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:01:25,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 09:01:25,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:01:25,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 09:01:25,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 09:01:25,138 INFO L87 Difference]: Start difference. First operand 972 states and 1185 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 09:01:25,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:01:25,473 INFO L93 Difference]: Finished difference Result 1940 states and 2349 transitions. [2024-11-20 09:01:25,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 09:01:25,474 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-11-20 09:01:25,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:01:25,479 INFO L225 Difference]: With dead ends: 1940 [2024-11-20 09:01:25,479 INFO L226 Difference]: Without dead ends: 1022 [2024-11-20 09:01:25,481 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 41 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 09:01:25,481 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 59 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 09:01:25,482 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 434 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 09:01:25,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2024-11-20 09:01:25,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 916. [2024-11-20 09:01:25,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 792 states have (on average 1.167929292929293) internal successors, (925), 800 states have internal predecessors, (925), 94 states have call successors, (94), 29 states have call predecessors, (94), 29 states have return successors, (94), 86 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-20 09:01:25,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1113 transitions. [2024-11-20 09:01:25,567 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1113 transitions. Word has length 152 [2024-11-20 09:01:25,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:01:25,567 INFO L471 AbstractCegarLoop]: Abstraction has 916 states and 1113 transitions. [2024-11-20 09:01:25,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 09:01:25,567 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1113 transitions. [2024-11-20 09:01:25,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-20 09:01:25,569 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:01:25,569 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:25,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-20 09:01:25,569 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:01:25,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:01:25,569 INFO L85 PathProgramCache]: Analyzing trace with hash 392114053, now seen corresponding path program 1 times [2024-11-20 09:01:25,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:01:25,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907898864] [2024-11-20 09:01:25,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:01:25,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:01:25,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:25,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:01:25,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:25,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:01:25,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:25,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:01:25,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:25,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:01:25,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:25,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:01:25,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:25,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:01:25,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:25,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:01:25,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:25,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:01:25,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:25,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:01:25,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:25,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:01:25,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:25,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:01:25,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:25,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:01:25,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:25,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:01:25,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:25,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:01:25,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:25,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:01:25,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:25,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:01:25,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:25,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:01:25,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:25,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:01:25,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:25,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:01:25,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:25,862 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:01:25,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:01:25,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907898864] [2024-11-20 09:01:25,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907898864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:01:25,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:01:25,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 09:01:25,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540818389] [2024-11-20 09:01:25,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:01:25,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 09:01:25,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:01:25,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 09:01:25,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-20 09:01:25,864 INFO L87 Difference]: Start difference. First operand 916 states and 1113 transitions. Second operand has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 09:01:26,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:01:26,384 INFO L93 Difference]: Finished difference Result 1970 states and 2391 transitions. [2024-11-20 09:01:26,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 09:01:26,385 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-11-20 09:01:26,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:01:26,389 INFO L225 Difference]: With dead ends: 1970 [2024-11-20 09:01:26,390 INFO L226 Difference]: Without dead ends: 1108 [2024-11-20 09:01:26,391 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2024-11-20 09:01:26,391 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 117 mSDsluCounter, 1454 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 1660 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 09:01:26,391 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 1660 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 09:01:26,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2024-11-20 09:01:26,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 1021. [2024-11-20 09:01:26,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 873 states have (on average 1.1557846506300113) internal successors, (1009), 882 states have internal predecessors, (1009), 113 states have call successors, (113), 34 states have call predecessors, (113), 34 states have return successors, (113), 104 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-20 09:01:26,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1235 transitions. [2024-11-20 09:01:26,558 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1235 transitions. Word has length 152 [2024-11-20 09:01:26,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:01:26,559 INFO L471 AbstractCegarLoop]: Abstraction has 1021 states and 1235 transitions. [2024-11-20 09:01:26,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 09:01:26,559 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1235 transitions. [2024-11-20 09:01:26,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-20 09:01:26,560 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:01:26,560 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:26,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-20 09:01:26,560 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:01:26,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:01:26,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1671977731, now seen corresponding path program 1 times [2024-11-20 09:01:26,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:01:26,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369469800] [2024-11-20 09:01:26,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:01:26,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:01:26,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:27,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:01:27,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:27,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:01:27,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:27,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:01:27,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:27,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:01:27,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:27,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:01:27,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:27,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:01:27,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:27,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:01:27,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:27,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:01:27,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:27,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:01:27,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:27,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:01:27,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:27,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:01:27,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:27,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:01:27,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:27,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:01:27,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:27,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:01:27,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:27,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:01:27,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:27,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:01:27,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:27,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:01:27,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:27,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:01:27,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:27,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:01:27,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:27,225 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:01:27,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:01:27,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369469800] [2024-11-20 09:01:27,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369469800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:01:27,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:01:27,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 09:01:27,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201022879] [2024-11-20 09:01:27,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:01:27,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 09:01:27,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:01:27,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 09:01:27,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 09:01:27,227 INFO L87 Difference]: Start difference. First operand 1021 states and 1235 transitions. Second operand has 7 states, 6 states have (on average 10.0) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 09:01:27,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:01:27,637 INFO L93 Difference]: Finished difference Result 2072 states and 2492 transitions. [2024-11-20 09:01:27,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 09:01:27,638 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.0) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 152 [2024-11-20 09:01:27,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:01:27,643 INFO L225 Difference]: With dead ends: 2072 [2024-11-20 09:01:27,643 INFO L226 Difference]: Without dead ends: 1105 [2024-11-20 09:01:27,644 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-20 09:01:27,645 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 45 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 09:01:27,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 624 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 09:01:27,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2024-11-20 09:01:27,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 999. [2024-11-20 09:01:27,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 999 states, 851 states have (on average 1.1480611045828437) internal successors, (977), 860 states have internal predecessors, (977), 113 states have call successors, (113), 34 states have call predecessors, (113), 34 states have return successors, (113), 104 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-20 09:01:27,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1203 transitions. [2024-11-20 09:01:27,730 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1203 transitions. Word has length 152 [2024-11-20 09:01:27,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:01:27,730 INFO L471 AbstractCegarLoop]: Abstraction has 999 states and 1203 transitions. [2024-11-20 09:01:27,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.0) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 09:01:27,730 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1203 transitions. [2024-11-20 09:01:27,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-20 09:01:27,731 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:01:27,731 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:27,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-20 09:01:27,731 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:01:27,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:01:27,732 INFO L85 PathProgramCache]: Analyzing trace with hash 867128544, now seen corresponding path program 1 times [2024-11-20 09:01:27,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:01:27,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97731092] [2024-11-20 09:01:27,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:01:27,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:01:27,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:28,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:01:28,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:28,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:01:28,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:28,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:01:28,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:28,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:01:28,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:28,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:01:28,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:28,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:01:28,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:28,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:01:28,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:28,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:01:28,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:28,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:01:28,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:28,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:01:28,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:28,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:01:28,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:28,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:01:28,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:28,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:01:28,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:28,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:01:28,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:28,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:01:28,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:28,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:01:28,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:28,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:01:28,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:28,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:01:28,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:28,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:01:28,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:28,610 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:01:28,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:01:28,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97731092] [2024-11-20 09:01:28,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97731092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:01:28,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:01:28,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 09:01:28,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504370744] [2024-11-20 09:01:28,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:01:28,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 09:01:28,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:01:28,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 09:01:28,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-20 09:01:28,612 INFO L87 Difference]: Start difference. First operand 999 states and 1203 transitions. Second operand has 9 states, 7 states have (on average 8.857142857142858) internal successors, (62), 9 states have internal predecessors, (62), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-20 09:01:29,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:01:29,181 INFO L93 Difference]: Finished difference Result 2355 states and 2779 transitions. [2024-11-20 09:01:29,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 09:01:29,182 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.857142857142858) internal successors, (62), 9 states have internal predecessors, (62), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 154 [2024-11-20 09:01:29,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:01:29,186 INFO L225 Difference]: With dead ends: 2355 [2024-11-20 09:01:29,189 INFO L226 Difference]: Without dead ends: 1410 [2024-11-20 09:01:29,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-20 09:01:29,192 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 42 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 09:01:29,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 680 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 09:01:29,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2024-11-20 09:01:29,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1323. [2024-11-20 09:01:29,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1323 states, 1139 states have (on average 1.112379280070237) internal successors, (1267), 1154 states have internal predecessors, (1267), 137 states have call successors, (137), 46 states have call predecessors, (137), 46 states have return successors, (137), 122 states have call predecessors, (137), 137 states have call successors, (137) [2024-11-20 09:01:29,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1323 states to 1323 states and 1541 transitions. [2024-11-20 09:01:29,316 INFO L78 Accepts]: Start accepts. Automaton has 1323 states and 1541 transitions. Word has length 154 [2024-11-20 09:01:29,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:01:29,317 INFO L471 AbstractCegarLoop]: Abstraction has 1323 states and 1541 transitions. [2024-11-20 09:01:29,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.857142857142858) internal successors, (62), 9 states have internal predecessors, (62), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-20 09:01:29,317 INFO L276 IsEmpty]: Start isEmpty. Operand 1323 states and 1541 transitions. [2024-11-20 09:01:29,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-20 09:01:29,318 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:01:29,318 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:29,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-20 09:01:29,319 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:01:29,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:01:29,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1963407648, now seen corresponding path program 1 times [2024-11-20 09:01:29,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:01:29,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828299301] [2024-11-20 09:01:29,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:01:29,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:01:29,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:29,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:01:29,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:29,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:01:29,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:29,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:01:29,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:29,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:01:29,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:29,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:01:29,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:29,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:01:29,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:29,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:01:29,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:29,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:01:29,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:29,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:01:29,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:29,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:01:29,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:29,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:01:29,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:29,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:01:29,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:29,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:01:29,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:29,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:01:29,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:29,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:01:29,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:29,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:01:29,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:29,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:01:29,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:29,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:01:29,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:29,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:01:29,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:29,524 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:01:29,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:01:29,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828299301] [2024-11-20 09:01:29,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828299301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:01:29,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:01:29,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 09:01:29,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34822036] [2024-11-20 09:01:29,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:01:29,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 09:01:29,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:01:29,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 09:01:29,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 09:01:29,526 INFO L87 Difference]: Start difference. First operand 1323 states and 1541 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 09:01:29,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:01:29,984 INFO L93 Difference]: Finished difference Result 3032 states and 3519 transitions. [2024-11-20 09:01:29,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 09:01:29,985 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 154 [2024-11-20 09:01:29,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:01:29,990 INFO L225 Difference]: With dead ends: 3032 [2024-11-20 09:01:29,990 INFO L226 Difference]: Without dead ends: 1763 [2024-11-20 09:01:29,992 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-20 09:01:29,992 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 51 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 09:01:29,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 629 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 09:01:29,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1763 states. [2024-11-20 09:01:30,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1763 to 1488. [2024-11-20 09:01:30,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1488 states, 1304 states have (on average 1.10659509202454) internal successors, (1443), 1319 states have internal predecessors, (1443), 137 states have call successors, (137), 46 states have call predecessors, (137), 46 states have return successors, (137), 122 states have call predecessors, (137), 137 states have call successors, (137) [2024-11-20 09:01:30,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 1717 transitions. [2024-11-20 09:01:30,138 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 1717 transitions. Word has length 154 [2024-11-20 09:01:30,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:01:30,139 INFO L471 AbstractCegarLoop]: Abstraction has 1488 states and 1717 transitions. [2024-11-20 09:01:30,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 09:01:30,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 1717 transitions. [2024-11-20 09:01:30,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-20 09:01:30,141 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:01:30,142 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:30,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-20 09:01:30,142 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:01:30,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:01:30,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1376601634, now seen corresponding path program 1 times [2024-11-20 09:01:30,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:01:30,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429448598] [2024-11-20 09:01:30,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:01:30,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:01:30,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:31,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:01:31,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:31,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:01:31,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:31,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:01:31,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:31,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:01:31,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:31,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:01:31,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:31,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:01:31,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:31,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:01:31,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:31,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:01:31,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:31,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:01:31,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:31,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:01:31,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:31,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:01:31,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:31,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:01:31,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:31,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:01:31,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:31,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:01:31,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:31,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:01:31,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:31,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:01:31,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:31,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:01:31,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:31,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:01:31,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:31,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:01:31,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:31,401 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:01:31,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:01:31,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429448598] [2024-11-20 09:01:31,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429448598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:01:31,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:01:31,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 09:01:31,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332439715] [2024-11-20 09:01:31,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:01:31,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 09:01:31,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:01:31,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 09:01:31,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-20 09:01:31,403 INFO L87 Difference]: Start difference. First operand 1488 states and 1717 transitions. Second operand has 10 states, 8 states have (on average 7.75) internal successors, (62), 10 states have internal predecessors, (62), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-20 09:01:32,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:01:32,205 INFO L93 Difference]: Finished difference Result 3105 states and 3568 transitions. [2024-11-20 09:01:32,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 09:01:32,205 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 7.75) internal successors, (62), 10 states have internal predecessors, (62), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 154 [2024-11-20 09:01:32,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:01:32,210 INFO L225 Difference]: With dead ends: 3105 [2024-11-20 09:01:32,210 INFO L226 Difference]: Without dead ends: 1671 [2024-11-20 09:01:32,212 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-20 09:01:32,212 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 38 mSDsluCounter, 708 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 09:01:32,212 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 872 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 09:01:32,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2024-11-20 09:01:32,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1488. [2024-11-20 09:01:32,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1488 states, 1304 states have (on average 1.10659509202454) internal successors, (1443), 1319 states have internal predecessors, (1443), 137 states have call successors, (137), 46 states have call predecessors, (137), 46 states have return successors, (137), 122 states have call predecessors, (137), 137 states have call successors, (137) [2024-11-20 09:01:32,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 1717 transitions. [2024-11-20 09:01:32,350 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 1717 transitions. Word has length 154 [2024-11-20 09:01:32,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:01:32,350 INFO L471 AbstractCegarLoop]: Abstraction has 1488 states and 1717 transitions. [2024-11-20 09:01:32,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 7.75) internal successors, (62), 10 states have internal predecessors, (62), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-20 09:01:32,351 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 1717 transitions. [2024-11-20 09:01:32,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-20 09:01:32,352 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:01:32,352 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:32,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-20 09:01:32,353 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:01:32,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:01:32,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1383117117, now seen corresponding path program 1 times [2024-11-20 09:01:32,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:01:32,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182573673] [2024-11-20 09:01:32,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:01:32,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:01:32,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:32,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:01:32,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:32,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:01:32,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:32,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:01:32,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:32,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:01:32,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:32,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:01:32,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:32,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:01:32,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:32,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:01:32,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:32,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:01:32,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:32,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:01:32,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:32,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:01:32,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:32,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:01:32,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:32,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:01:32,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:32,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:01:32,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:32,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:01:32,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:32,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:01:32,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:32,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:01:32,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:32,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:01:32,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:32,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:01:32,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:32,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 09:01:32,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:32,624 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:01:32,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:01:32,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182573673] [2024-11-20 09:01:32,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182573673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:01:32,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:01:32,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 09:01:32,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946407237] [2024-11-20 09:01:32,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:01:32,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 09:01:32,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:01:32,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 09:01:32,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 09:01:32,625 INFO L87 Difference]: Start difference. First operand 1488 states and 1717 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 09:01:33,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:01:33,340 INFO L93 Difference]: Finished difference Result 4345 states and 5007 transitions. [2024-11-20 09:01:33,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 09:01:33,340 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2024-11-20 09:01:33,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:01:33,346 INFO L225 Difference]: With dead ends: 4345 [2024-11-20 09:01:33,346 INFO L226 Difference]: Without dead ends: 1524 [2024-11-20 09:01:33,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-20 09:01:33,349 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 103 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 09:01:33,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 1049 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 09:01:33,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1524 states. [2024-11-20 09:01:33,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1524 to 1497. [2024-11-20 09:01:33,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1497 states, 1313 states have (on average 1.086062452399086) internal successors, (1426), 1328 states have internal predecessors, (1426), 137 states have call successors, (137), 46 states have call predecessors, (137), 46 states have return successors, (137), 122 states have call predecessors, (137), 137 states have call successors, (137) [2024-11-20 09:01:33,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1497 states to 1497 states and 1700 transitions. [2024-11-20 09:01:33,484 INFO L78 Accepts]: Start accepts. Automaton has 1497 states and 1700 transitions. Word has length 155 [2024-11-20 09:01:33,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:01:33,484 INFO L471 AbstractCegarLoop]: Abstraction has 1497 states and 1700 transitions. [2024-11-20 09:01:33,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 09:01:33,484 INFO L276 IsEmpty]: Start isEmpty. Operand 1497 states and 1700 transitions. [2024-11-20 09:01:33,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-20 09:01:33,486 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:01:33,486 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:33,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-20 09:01:33,486 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:01:33,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:01:33,487 INFO L85 PathProgramCache]: Analyzing trace with hash 540110917, now seen corresponding path program 1 times [2024-11-20 09:01:33,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:01:33,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272924845] [2024-11-20 09:01:33,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:01:33,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:01:33,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 09:01:33,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1483271995] [2024-11-20 09:01:33,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:01:33,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 09:01:33,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:01:33,613 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 09:01:33,614 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 09:01:33,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:01:33,964 INFO L255 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 54 conjuncts are in the unsatisfiable core [2024-11-20 09:01:33,987 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 09:01:34,048 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 19 treesize of output 1 [2024-11-20 09:01:34,053 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 19 treesize of output 1 [2024-11-20 09:01:34,063 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 19 treesize of output 1 [2024-11-20 09:01:34,071 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 19 treesize of output 1 [2024-11-20 09:01:34,079 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 19 treesize of output 1 [2024-11-20 09:01:34,083 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 19 treesize of output 1 [2024-11-20 09:01:34,089 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 19 treesize of output 1 [2024-11-20 09:01:34,092 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 09:01:34,095 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 19 treesize of output 1 [2024-11-20 09:01:34,107 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 09:01:34,107 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 32 treesize of output 39 [2024-11-20 09:01:34,468 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 09:01:34,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 131 treesize of output 41 [2024-11-20 09:01:34,524 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 09:01:34,525 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 09:01:34,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:01:34,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272924845] [2024-11-20 09:01:34,526 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 09:01:34,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1483271995] [2024-11-20 09:01:34,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1483271995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:01:34,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:01:34,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 09:01:34,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145232136] [2024-11-20 09:01:34,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:01:34,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 09:01:34,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:01:34,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 09:01:34,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 09:01:34,529 INFO L87 Difference]: Start difference. First operand 1497 states and 1700 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19)