./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_loopvsstraightlinecode_100-while_file-88.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_loopvsstraightlinecode_100-while_file-88.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 0f173a1e127c6e1033e5b4dd17ed93bd9e595663c9235b403a3de8ffd3ad4687 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 06:29:32,853 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 06:29:32,925 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 06:29:32,931 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 06:29:32,932 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 06:29:32,968 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 06:29:32,970 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 06:29:32,971 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 06:29:32,972 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 06:29:32,973 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 06:29:32,974 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 06:29:32,974 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 06:29:32,975 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 06:29:32,975 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 06:29:32,977 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 06:29:32,978 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 06:29:32,978 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 06:29:32,978 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 06:29:32,979 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 06:29:32,979 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 06:29:32,979 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 06:29:32,983 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 06:29:32,984 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 06:29:32,984 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 06:29:32,984 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 06:29:32,984 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 06:29:32,985 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 06:29:32,985 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 06:29:32,985 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 06:29:32,985 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 06:29:32,986 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 06:29:32,986 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 06:29:32,986 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 06:29:32,986 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 06:29:32,987 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 06:29:32,987 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 06:29:32,987 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 06:29:32,987 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 06:29:32,988 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 06:29:32,988 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 06:29:32,988 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 06:29:32,989 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 06:29:32,989 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f173a1e127c6e1033e5b4dd17ed93bd9e595663c9235b403a3de8ffd3ad4687 [2024-11-20 06:29:33,266 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 06:29:33,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 06:29:33,298 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 06:29:33,300 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 06:29:33,300 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 06:29:33,301 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-88.i [2024-11-20 06:29:34,730 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 06:29:34,945 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 06:29:34,946 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-88.i [2024-11-20 06:29:34,961 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55e0fa420/3194148f703e4e9fa9326bbc7d8e3297/FLAGb47350101 [2024-11-20 06:29:35,311 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55e0fa420/3194148f703e4e9fa9326bbc7d8e3297 [2024-11-20 06:29:35,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 06:29:35,315 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 06:29:35,316 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 06:29:35,316 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 06:29:35,321 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 06:29:35,321 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:29:35" (1/1) ... [2024-11-20 06:29:35,322 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e59d14b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:29:35, skipping insertion in model container [2024-11-20 06:29:35,322 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:29:35" (1/1) ... [2024-11-20 06:29:35,355 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 06:29:35,557 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_loopvsstraightlinecode_100-while_file-88.i[916,929] [2024-11-20 06:29:35,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 06:29:35,660 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 06:29:35,671 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_loopvsstraightlinecode_100-while_file-88.i[916,929] [2024-11-20 06:29:35,728 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 06:29:35,760 INFO L204 MainTranslator]: Completed translation [2024-11-20 06:29:35,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:29:35 WrapperNode [2024-11-20 06:29:35,761 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 06:29:35,762 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 06:29:35,762 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 06:29:35,762 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 06:29:35,770 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:29:35" (1/1) ... [2024-11-20 06:29:35,782 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:29:35" (1/1) ... [2024-11-20 06:29:35,834 INFO L138 Inliner]: procedures = 26, calls = 41, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 281 [2024-11-20 06:29:35,834 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 06:29:35,838 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 06:29:35,838 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 06:29:35,838 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 06:29:35,847 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:29:35" (1/1) ... [2024-11-20 06:29:35,847 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:29:35" (1/1) ... [2024-11-20 06:29:35,853 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:29:35" (1/1) ... [2024-11-20 06:29:35,877 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-20 06:29:35,877 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:29:35" (1/1) ... [2024-11-20 06:29:35,877 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:29:35" (1/1) ... [2024-11-20 06:29:35,900 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:29:35" (1/1) ... [2024-11-20 06:29:35,908 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:29:35" (1/1) ... [2024-11-20 06:29:35,917 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:29:35" (1/1) ... [2024-11-20 06:29:35,921 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:29:35" (1/1) ... [2024-11-20 06:29:35,928 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 06:29:35,929 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 06:29:35,929 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 06:29:35,929 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 06:29:35,930 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:29:35" (1/1) ... [2024-11-20 06:29:35,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 06:29:35,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 06:29:35,963 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 06:29:35,970 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 06:29:36,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 06:29:36,019 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 06:29:36,020 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 06:29:36,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 06:29:36,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 06:29:36,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 06:29:36,202 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 06:29:36,204 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 06:29:36,734 INFO L? ?]: Removed 40 outVars from TransFormulas that were not future-live. [2024-11-20 06:29:36,735 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 06:29:36,749 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 06:29:36,749 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 06:29:36,749 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:29:36 BoogieIcfgContainer [2024-11-20 06:29:36,750 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 06:29:36,752 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 06:29:36,752 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 06:29:36,755 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 06:29:36,755 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:29:35" (1/3) ... [2024-11-20 06:29:36,756 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5de3cde2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:29:36, skipping insertion in model container [2024-11-20 06:29:36,756 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:29:35" (2/3) ... [2024-11-20 06:29:36,756 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5de3cde2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:29:36, skipping insertion in model container [2024-11-20 06:29:36,757 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:29:36" (3/3) ... [2024-11-20 06:29:36,758 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-while_file-88.i [2024-11-20 06:29:36,773 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 06:29:36,773 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 06:29:36,841 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 06:29:36,849 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;@446c7b9f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 06:29:36,850 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 06:29:36,854 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 86 states have (on average 1.430232558139535) internal successors, (123), 87 states have internal predecessors, (123), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-20 06:29:36,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-20 06:29:36,868 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:29:36,869 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:29:36,869 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:29:36,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:29:36,874 INFO L85 PathProgramCache]: Analyzing trace with hash -98355189, now seen corresponding path program 1 times [2024-11-20 06:29:36,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:29:36,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410885748] [2024-11-20 06:29:36,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:29:36,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:29:37,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:37,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:29:37,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:37,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 06:29:37,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:37,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 06:29:37,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:37,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 06:29:37,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:37,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-20 06:29:37,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:37,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-20 06:29:37,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:37,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 06:29:37,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:37,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-20 06:29:37,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:37,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 06:29:37,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:37,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 06:29:37,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:37,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 06:29:37,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:37,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-20 06:29:37,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:37,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 06:29:37,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:37,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-20 06:29:37,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:37,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 06:29:37,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:37,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 06:29:37,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:37,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 06:29:37,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:37,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-20 06:29:37,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:37,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 06:29:37,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:37,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-20 06:29:37,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:37,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-20 06:29:37,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:37,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-20 06:29:37,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:37,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-20 06:29:37,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:37,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 06:29:37,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:37,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-20 06:29:37,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:37,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-20 06:29:37,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:37,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-20 06:29:37,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:37,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-20 06:29:37,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:37,423 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-20 06:29:37,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:29:37,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410885748] [2024-11-20 06:29:37,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410885748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:29:37,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:29:37,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 06:29:37,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610103955] [2024-11-20 06:29:37,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:29:37,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 06:29:37,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:29:37,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 06:29:37,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 06:29:37,476 INFO L87 Difference]: Start difference. First operand has 117 states, 86 states have (on average 1.430232558139535) internal successors, (123), 87 states have internal predecessors, (123), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-20 06:29:37,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:29:37,533 INFO L93 Difference]: Finished difference Result 227 states and 380 transitions. [2024-11-20 06:29:37,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 06:29:37,535 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 2 states have call successors, (28) Word has length 191 [2024-11-20 06:29:37,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:29:37,545 INFO L225 Difference]: With dead ends: 227 [2024-11-20 06:29:37,545 INFO L226 Difference]: Without dead ends: 113 [2024-11-20 06:29:37,551 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 86 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 06:29:37,557 INFO L432 NwaCegarLoop]: 172 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, 172 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 06:29:37,558 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 06:29:37,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-20 06:29:37,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2024-11-20 06:29:37,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 83 states have (on average 1.3975903614457832) internal successors, (116), 83 states have internal predecessors, (116), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-20 06:29:37,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 172 transitions. [2024-11-20 06:29:37,623 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 172 transitions. Word has length 191 [2024-11-20 06:29:37,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:29:37,624 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 172 transitions. [2024-11-20 06:29:37,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-20 06:29:37,625 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 172 transitions. [2024-11-20 06:29:37,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-20 06:29:37,631 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:29:37,631 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:29:37,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 06:29:37,632 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:29:37,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:29:37,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1603606915, now seen corresponding path program 1 times [2024-11-20 06:29:37,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:29:37,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766915094] [2024-11-20 06:29:37,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:29:37,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:29:37,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:38,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:29:38,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:38,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 06:29:38,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:38,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 06:29:38,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:38,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 06:29:38,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:38,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-20 06:29:38,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:38,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-20 06:29:38,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:38,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 06:29:38,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:38,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-20 06:29:38,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:38,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 06:29:38,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:38,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 06:29:38,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:38,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 06:29:38,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:38,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-20 06:29:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:38,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 06:29:38,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:38,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-20 06:29:38,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:38,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 06:29:38,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:38,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 06:29:38,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:38,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 06:29:38,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:38,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-20 06:29:38,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:38,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 06:29:38,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:38,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-20 06:29:38,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:38,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-20 06:29:38,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:38,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-20 06:29:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:38,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-20 06:29:38,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:38,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 06:29:38,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:38,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-20 06:29:38,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:38,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-20 06:29:38,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:38,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-20 06:29:38,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:38,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-20 06:29:38,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:38,405 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-20 06:29:38,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:29:38,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766915094] [2024-11-20 06:29:38,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766915094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:29:38,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:29:38,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 06:29:38,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591402270] [2024-11-20 06:29:38,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:29:38,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 06:29:38,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:29:38,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 06:29:38,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 06:29:38,412 INFO L87 Difference]: Start difference. First operand 113 states and 172 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-20 06:29:38,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:29:38,675 INFO L93 Difference]: Finished difference Result 373 states and 567 transitions. [2024-11-20 06:29:38,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 06:29:38,676 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 191 [2024-11-20 06:29:38,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:29:38,682 INFO L225 Difference]: With dead ends: 373 [2024-11-20 06:29:38,683 INFO L226 Difference]: Without dead ends: 263 [2024-11-20 06:29:38,684 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 06:29:38,685 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 250 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 06:29:38,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 484 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 06:29:38,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2024-11-20 06:29:38,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 217. [2024-11-20 06:29:38,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 158 states have (on average 1.3734177215189873) internal successors, (217), 158 states have internal predecessors, (217), 56 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-20 06:29:38,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 329 transitions. [2024-11-20 06:29:38,733 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 329 transitions. Word has length 191 [2024-11-20 06:29:38,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:29:38,734 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 329 transitions. [2024-11-20 06:29:38,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-20 06:29:38,739 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 329 transitions. [2024-11-20 06:29:38,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-20 06:29:38,745 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:29:38,745 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:29:38,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 06:29:38,746 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:29:38,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:29:38,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1586446966, now seen corresponding path program 1 times [2024-11-20 06:29:38,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:29:38,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716818659] [2024-11-20 06:29:38,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:29:38,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:29:38,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:39,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:29:39,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:39,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 06:29:39,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:39,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 06:29:39,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:39,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 06:29:39,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:39,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-20 06:29:39,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:39,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-20 06:29:39,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:39,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 06:29:39,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:39,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-20 06:29:39,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:39,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 06:29:39,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:39,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 06:29:39,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:39,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 06:29:39,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:39,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-20 06:29:39,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:39,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 06:29:39,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:39,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-20 06:29:39,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:39,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 06:29:39,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:39,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 06:29:39,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:39,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 06:29:39,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:39,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-20 06:29:39,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:39,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 06:29:39,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:39,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-20 06:29:39,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:39,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-20 06:29:39,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:39,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-20 06:29:39,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:39,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-20 06:29:39,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:39,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 06:29:39,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:39,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-20 06:29:39,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:39,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-20 06:29:39,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:39,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-20 06:29:39,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:39,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-20 06:29:39,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:39,214 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-20 06:29:39,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:29:39,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716818659] [2024-11-20 06:29:39,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716818659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:29:39,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:29:39,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 06:29:39,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904890405] [2024-11-20 06:29:39,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:29:39,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 06:29:39,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:29:39,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 06:29:39,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 06:29:39,219 INFO L87 Difference]: Start difference. First operand 217 states and 329 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-20 06:29:39,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:29:39,529 INFO L93 Difference]: Finished difference Result 580 states and 878 transitions. [2024-11-20 06:29:39,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 06:29:39,530 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 192 [2024-11-20 06:29:39,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:29:39,534 INFO L225 Difference]: With dead ends: 580 [2024-11-20 06:29:39,534 INFO L226 Difference]: Without dead ends: 366 [2024-11-20 06:29:39,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-20 06:29:39,536 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 255 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 06:29:39,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 574 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 06:29:39,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2024-11-20 06:29:39,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 272. [2024-11-20 06:29:39,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 184 states have (on average 1.3315217391304348) internal successors, (245), 184 states have internal predecessors, (245), 84 states have call successors, (84), 3 states have call predecessors, (84), 3 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-20 06:29:39,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 413 transitions. [2024-11-20 06:29:39,585 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 413 transitions. Word has length 192 [2024-11-20 06:29:39,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:29:39,586 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 413 transitions. [2024-11-20 06:29:39,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-20 06:29:39,586 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 413 transitions. [2024-11-20 06:29:39,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-20 06:29:39,589 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:29:39,589 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:29:39,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 06:29:39,589 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:29:39,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:29:39,590 INFO L85 PathProgramCache]: Analyzing trace with hash 2095920056, now seen corresponding path program 1 times [2024-11-20 06:29:39,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:29:39,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527066553] [2024-11-20 06:29:39,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:29:39,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:29:39,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:40,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:29:40,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:40,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 06:29:40,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:40,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 06:29:40,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:40,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 06:29:40,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:40,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-20 06:29:40,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:40,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-20 06:29:40,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:40,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 06:29:40,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:40,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-20 06:29:40,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:40,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 06:29:40,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:40,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 06:29:40,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:40,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 06:29:40,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:40,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-20 06:29:40,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:40,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 06:29:40,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:40,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-20 06:29:40,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:40,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 06:29:40,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:40,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 06:29:40,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:40,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 06:29:40,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:40,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-20 06:29:40,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:40,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 06:29:40,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:40,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-20 06:29:40,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:40,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-20 06:29:40,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:40,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-20 06:29:40,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:40,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-20 06:29:40,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:40,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 06:29:40,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:40,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-20 06:29:40,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:40,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-20 06:29:40,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:40,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-20 06:29:40,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:40,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-20 06:29:40,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:40,277 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-20 06:29:40,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:29:40,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527066553] [2024-11-20 06:29:40,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527066553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:29:40,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:29:40,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 06:29:40,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972115319] [2024-11-20 06:29:40,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:29:40,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 06:29:40,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:29:40,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 06:29:40,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 06:29:40,281 INFO L87 Difference]: Start difference. First operand 272 states and 413 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-20 06:29:40,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:29:40,694 INFO L93 Difference]: Finished difference Result 580 states and 877 transitions. [2024-11-20 06:29:40,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 06:29:40,694 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 192 [2024-11-20 06:29:40,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:29:40,701 INFO L225 Difference]: With dead ends: 580 [2024-11-20 06:29:40,702 INFO L226 Difference]: Without dead ends: 366 [2024-11-20 06:29:40,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-20 06:29:40,704 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 106 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 06:29:40,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 544 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 06:29:40,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2024-11-20 06:29:40,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 282. [2024-11-20 06:29:40,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 194 states have (on average 1.3350515463917525) internal successors, (259), 194 states have internal predecessors, (259), 84 states have call successors, (84), 3 states have call predecessors, (84), 3 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-20 06:29:40,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 427 transitions. [2024-11-20 06:29:40,757 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 427 transitions. Word has length 192 [2024-11-20 06:29:40,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:29:40,758 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 427 transitions. [2024-11-20 06:29:40,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-20 06:29:40,759 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 427 transitions. [2024-11-20 06:29:40,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-20 06:29:40,763 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:29:40,763 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:29:40,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 06:29:40,763 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:29:40,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:29:40,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1776345414, now seen corresponding path program 1 times [2024-11-20 06:29:40,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:29:40,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633422417] [2024-11-20 06:29:40,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:29:40,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:29:40,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:41,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:29:41,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:41,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 06:29:41,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:41,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 06:29:41,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:41,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 06:29:41,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:41,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-20 06:29:41,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:41,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-20 06:29:41,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:41,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 06:29:41,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:41,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-20 06:29:41,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:41,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 06:29:41,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:41,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 06:29:41,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:41,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 06:29:41,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:41,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-20 06:29:41,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:41,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 06:29:41,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:41,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-20 06:29:41,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:41,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 06:29:41,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:41,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 06:29:41,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:41,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 06:29:41,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:41,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-20 06:29:41,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:41,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 06:29:41,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:41,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-20 06:29:41,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:41,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-20 06:29:41,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:41,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-20 06:29:41,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:41,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-20 06:29:41,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:41,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 06:29:41,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:41,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-20 06:29:41,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:41,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-20 06:29:41,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:41,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-20 06:29:41,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:41,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-20 06:29:41,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:41,656 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-20 06:29:41,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:29:41,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633422417] [2024-11-20 06:29:41,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633422417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:29:41,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:29:41,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 06:29:41,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790278696] [2024-11-20 06:29:41,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:29:41,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 06:29:41,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:29:41,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 06:29:41,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-20 06:29:41,661 INFO L87 Difference]: Start difference. First operand 282 states and 427 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-20 06:29:42,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:29:42,720 INFO L93 Difference]: Finished difference Result 953 states and 1446 transitions. [2024-11-20 06:29:42,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 06:29:42,721 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 192 [2024-11-20 06:29:42,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:29:42,729 INFO L225 Difference]: With dead ends: 953 [2024-11-20 06:29:42,730 INFO L226 Difference]: Without dead ends: 739 [2024-11-20 06:29:42,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-20 06:29:42,733 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 483 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-20 06:29:42,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 745 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-20 06:29:42,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2024-11-20 06:29:42,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 406. [2024-11-20 06:29:42,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 289 states have (on average 1.3633217993079585) internal successors, (394), 289 states have internal predecessors, (394), 112 states have call successors, (112), 4 states have call predecessors, (112), 4 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-20 06:29:42,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 618 transitions. [2024-11-20 06:29:42,843 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 618 transitions. Word has length 192 [2024-11-20 06:29:42,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:29:42,844 INFO L471 AbstractCegarLoop]: Abstraction has 406 states and 618 transitions. [2024-11-20 06:29:42,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-20 06:29:42,844 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 618 transitions. [2024-11-20 06:29:42,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-20 06:29:42,846 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:29:42,846 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:29:42,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 06:29:42,847 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:29:42,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:29:42,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1238758204, now seen corresponding path program 1 times [2024-11-20 06:29:42,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:29:42,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418197720] [2024-11-20 06:29:42,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:29:42,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:29:42,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:43,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:29:43,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:43,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 06:29:43,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:43,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 06:29:43,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:43,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 06:29:43,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:43,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-20 06:29:43,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:43,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-20 06:29:43,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:43,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 06:29:43,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:43,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-20 06:29:43,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:43,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 06:29:43,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:43,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 06:29:43,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:43,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 06:29:43,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:43,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-20 06:29:43,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:43,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 06:29:43,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:43,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-20 06:29:43,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:43,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 06:29:43,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:43,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 06:29:43,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:43,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 06:29:43,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:43,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-20 06:29:43,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:43,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 06:29:43,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:43,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-20 06:29:43,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:43,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-20 06:29:43,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:43,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-20 06:29:43,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:43,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-20 06:29:43,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:43,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 06:29:43,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:43,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-20 06:29:43,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:43,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-20 06:29:43,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:43,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-20 06:29:43,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:43,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-20 06:29:43,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:43,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-20 06:29:43,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:29:43,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418197720] [2024-11-20 06:29:43,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418197720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:29:43,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:29:43,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 06:29:43,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060182522] [2024-11-20 06:29:43,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:29:43,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 06:29:43,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:29:43,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 06:29:43,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 06:29:43,330 INFO L87 Difference]: Start difference. First operand 406 states and 618 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-20 06:29:44,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:29:44,287 INFO L93 Difference]: Finished difference Result 1296 states and 1977 transitions. [2024-11-20 06:29:44,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 06:29:44,288 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 192 [2024-11-20 06:29:44,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:29:44,294 INFO L225 Difference]: With dead ends: 1296 [2024-11-20 06:29:44,294 INFO L226 Difference]: Without dead ends: 958 [2024-11-20 06:29:44,296 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-20 06:29:44,297 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 603 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-20 06:29:44,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [603 Valid, 727 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-20 06:29:44,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2024-11-20 06:29:44,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 532. [2024-11-20 06:29:44,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 386 states have (on average 1.383419689119171) internal successors, (534), 386 states have internal predecessors, (534), 140 states have call successors, (140), 5 states have call predecessors, (140), 5 states have return successors, (140), 140 states have call predecessors, (140), 140 states have call successors, (140) [2024-11-20 06:29:44,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 814 transitions. [2024-11-20 06:29:44,415 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 814 transitions. Word has length 192 [2024-11-20 06:29:44,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:29:44,416 INFO L471 AbstractCegarLoop]: Abstraction has 532 states and 814 transitions. [2024-11-20 06:29:44,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-20 06:29:44,417 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 814 transitions. [2024-11-20 06:29:44,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-20 06:29:44,420 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:29:44,420 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:29:44,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 06:29:44,421 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:29:44,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:29:44,421 INFO L85 PathProgramCache]: Analyzing trace with hash 598736577, now seen corresponding path program 1 times [2024-11-20 06:29:44,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:29:44,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74911632] [2024-11-20 06:29:44,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:29:44,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:29:44,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:44,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:29:44,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:44,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 06:29:44,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:44,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 06:29:44,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:44,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 06:29:44,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:44,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-20 06:29:44,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:44,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-20 06:29:44,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:44,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 06:29:44,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:44,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-20 06:29:44,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:44,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 06:29:44,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:44,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 06:29:44,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:44,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 06:29:44,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:44,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-20 06:29:44,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:44,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 06:29:44,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:44,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-20 06:29:44,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:44,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 06:29:44,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:44,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 06:29:44,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:44,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 06:29:44,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:44,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-20 06:29:44,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:44,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 06:29:44,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:44,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-20 06:29:44,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:44,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-20 06:29:44,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:44,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-20 06:29:44,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:44,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-20 06:29:44,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:44,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 06:29:44,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:44,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-20 06:29:44,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:44,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-20 06:29:44,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:44,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-20 06:29:44,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:44,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-20 06:29:44,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:44,676 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-20 06:29:44,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:29:44,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74911632] [2024-11-20 06:29:44,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74911632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:29:44,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:29:44,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 06:29:44,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791129556] [2024-11-20 06:29:44,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:29:44,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 06:29:44,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:29:44,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 06:29:44,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 06:29:44,680 INFO L87 Difference]: Start difference. First operand 532 states and 814 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-20 06:29:45,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:29:45,175 INFO L93 Difference]: Finished difference Result 1442 states and 2210 transitions. [2024-11-20 06:29:45,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 06:29:45,176 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 193 [2024-11-20 06:29:45,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:29:45,183 INFO L225 Difference]: With dead ends: 1442 [2024-11-20 06:29:45,183 INFO L226 Difference]: Without dead ends: 978 [2024-11-20 06:29:45,185 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 06:29:45,185 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 166 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 06:29:45,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 455 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 06:29:45,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2024-11-20 06:29:45,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 976. [2024-11-20 06:29:45,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 976 states, 714 states have (on average 1.3753501400560224) internal successors, (982), 714 states have internal predecessors, (982), 252 states have call successors, (252), 9 states have call predecessors, (252), 9 states have return successors, (252), 252 states have call predecessors, (252), 252 states have call successors, (252) [2024-11-20 06:29:45,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 976 states to 976 states and 1486 transitions. [2024-11-20 06:29:45,329 INFO L78 Accepts]: Start accepts. Automaton has 976 states and 1486 transitions. Word has length 193 [2024-11-20 06:29:45,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:29:45,330 INFO L471 AbstractCegarLoop]: Abstraction has 976 states and 1486 transitions. [2024-11-20 06:29:45,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-20 06:29:45,330 INFO L276 IsEmpty]: Start isEmpty. Operand 976 states and 1486 transitions. [2024-11-20 06:29:45,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-20 06:29:45,333 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:29:45,333 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:29:45,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 06:29:45,334 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:29:45,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:29:45,334 INFO L85 PathProgramCache]: Analyzing trace with hash 164625139, now seen corresponding path program 1 times [2024-11-20 06:29:45,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:29:45,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414108730] [2024-11-20 06:29:45,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:29:45,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:29:45,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:45,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:29:45,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:45,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 06:29:45,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:45,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 06:29:45,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:45,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 06:29:45,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:45,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-20 06:29:45,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:45,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-20 06:29:45,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:45,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 06:29:45,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:45,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-20 06:29:45,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:45,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 06:29:45,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:45,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 06:29:45,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:45,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 06:29:45,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:45,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-20 06:29:45,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:45,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 06:29:45,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:45,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-20 06:29:45,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:45,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 06:29:45,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:45,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 06:29:45,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:45,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 06:29:45,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:45,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-20 06:29:45,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:45,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 06:29:45,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:45,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-20 06:29:45,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:45,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-20 06:29:45,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:45,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-20 06:29:45,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:45,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-20 06:29:45,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:45,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 06:29:45,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:45,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-20 06:29:45,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:45,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-20 06:29:45,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:45,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-20 06:29:45,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:45,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-20 06:29:45,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:45,512 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-20 06:29:45,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:29:45,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414108730] [2024-11-20 06:29:45,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414108730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:29:45,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:29:45,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 06:29:45,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377033441] [2024-11-20 06:29:45,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:29:45,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 06:29:45,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:29:45,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 06:29:45,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 06:29:45,515 INFO L87 Difference]: Start difference. First operand 976 states and 1486 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-20 06:29:45,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:29:45,684 INFO L93 Difference]: Finished difference Result 1962 states and 2993 transitions. [2024-11-20 06:29:45,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 06:29:45,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 194 [2024-11-20 06:29:45,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:29:45,693 INFO L225 Difference]: With dead ends: 1962 [2024-11-20 06:29:45,693 INFO L226 Difference]: Without dead ends: 1056 [2024-11-20 06:29:45,697 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 06:29:45,698 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 19 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 06:29:45,698 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 293 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 06:29:45,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2024-11-20 06:29:45,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 976. [2024-11-20 06:29:45,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 976 states, 714 states have (on average 1.3697478991596639) internal successors, (978), 714 states have internal predecessors, (978), 252 states have call successors, (252), 9 states have call predecessors, (252), 9 states have return successors, (252), 252 states have call predecessors, (252), 252 states have call successors, (252) [2024-11-20 06:29:45,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 976 states to 976 states and 1482 transitions. [2024-11-20 06:29:45,839 INFO L78 Accepts]: Start accepts. Automaton has 976 states and 1482 transitions. Word has length 194 [2024-11-20 06:29:45,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:29:45,839 INFO L471 AbstractCegarLoop]: Abstraction has 976 states and 1482 transitions. [2024-11-20 06:29:45,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-20 06:29:45,840 INFO L276 IsEmpty]: Start isEmpty. Operand 976 states and 1482 transitions. [2024-11-20 06:29:45,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-20 06:29:45,842 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:29:45,842 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:29:45,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 06:29:45,842 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:29:45,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:29:45,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1588417456, now seen corresponding path program 1 times [2024-11-20 06:29:45,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:29:45,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582879411] [2024-11-20 06:29:45,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:29:45,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:29:45,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:47,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:29:47,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:47,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 06:29:47,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:47,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 06:29:47,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:47,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 06:29:47,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:47,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-20 06:29:47,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:47,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-20 06:29:47,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:47,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 06:29:47,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:47,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-20 06:29:47,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:47,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 06:29:47,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:47,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 06:29:47,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:47,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 06:29:47,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:47,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-20 06:29:47,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:47,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 06:29:47,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:47,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-20 06:29:47,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:47,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 06:29:47,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:47,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 06:29:47,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:47,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 06:29:47,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:47,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-20 06:29:47,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:47,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 06:29:47,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:47,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-20 06:29:47,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:47,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-20 06:29:47,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:47,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-20 06:29:47,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:47,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-20 06:29:47,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:47,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 06:29:47,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:47,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-20 06:29:47,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:47,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-20 06:29:47,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:47,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-20 06:29:47,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:47,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-20 06:29:47,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:47,256 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-20 06:29:47,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:29:47,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582879411] [2024-11-20 06:29:47,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582879411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:29:47,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:29:47,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 06:29:47,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988503586] [2024-11-20 06:29:47,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:29:47,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 06:29:47,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:29:47,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 06:29:47,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-20 06:29:47,258 INFO L87 Difference]: Start difference. First operand 976 states and 1482 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-20 06:29:47,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:29:47,782 INFO L93 Difference]: Finished difference Result 2068 states and 3129 transitions. [2024-11-20 06:29:47,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 06:29:47,783 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 195 [2024-11-20 06:29:47,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:29:47,790 INFO L225 Difference]: With dead ends: 2068 [2024-11-20 06:29:47,791 INFO L226 Difference]: Without dead ends: 1162 [2024-11-20 06:29:47,795 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-20 06:29:47,798 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 143 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 06:29:47,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 819 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 06:29:47,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2024-11-20 06:29:47,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 1026. [2024-11-20 06:29:47,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1026 states, 764 states have (on average 1.3795811518324608) internal successors, (1054), 764 states have internal predecessors, (1054), 252 states have call successors, (252), 9 states have call predecessors, (252), 9 states have return successors, (252), 252 states have call predecessors, (252), 252 states have call successors, (252) [2024-11-20 06:29:47,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1026 states to 1026 states and 1558 transitions. [2024-11-20 06:29:47,947 INFO L78 Accepts]: Start accepts. Automaton has 1026 states and 1558 transitions. Word has length 195 [2024-11-20 06:29:47,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:29:47,948 INFO L471 AbstractCegarLoop]: Abstraction has 1026 states and 1558 transitions. [2024-11-20 06:29:47,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-20 06:29:47,948 INFO L276 IsEmpty]: Start isEmpty. Operand 1026 states and 1558 transitions. [2024-11-20 06:29:47,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-20 06:29:47,952 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:29:47,952 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:29:47,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 06:29:47,953 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:29:47,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:29:47,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1031324183, now seen corresponding path program 1 times [2024-11-20 06:29:47,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:29:47,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846354633] [2024-11-20 06:29:47,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:29:47,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:29:48,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:48,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:29:48,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:48,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 06:29:48,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:48,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 06:29:48,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:48,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 06:29:48,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:48,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-20 06:29:48,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:48,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-20 06:29:48,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:48,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 06:29:48,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:48,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-20 06:29:48,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:48,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 06:29:48,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:48,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 06:29:48,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:48,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 06:29:48,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:48,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-20 06:29:48,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:48,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 06:29:48,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:48,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-20 06:29:48,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:48,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 06:29:48,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:48,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 06:29:48,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:48,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 06:29:48,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:48,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-20 06:29:48,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:48,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 06:29:48,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:48,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-20 06:29:48,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:48,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-20 06:29:48,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:48,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-20 06:29:48,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:48,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-20 06:29:48,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:48,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 06:29:48,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:48,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-20 06:29:48,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:48,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-20 06:29:48,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:48,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-20 06:29:48,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:48,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-20 06:29:48,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:48,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-20 06:29:48,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:29:48,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846354633] [2024-11-20 06:29:48,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846354633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:29:48,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:29:48,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 06:29:48,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177447994] [2024-11-20 06:29:48,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:29:48,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 06:29:48,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:29:48,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 06:29:48,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-20 06:29:48,917 INFO L87 Difference]: Start difference. First operand 1026 states and 1558 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-20 06:29:50,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:29:50,669 INFO L93 Difference]: Finished difference Result 2030 states and 3078 transitions. [2024-11-20 06:29:50,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 06:29:50,670 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 195 [2024-11-20 06:29:50,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:29:50,679 INFO L225 Difference]: With dead ends: 2030 [2024-11-20 06:29:50,679 INFO L226 Difference]: Without dead ends: 1124 [2024-11-20 06:29:50,682 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-20 06:29:50,683 INFO L432 NwaCegarLoop]: 254 mSDtfsCounter, 451 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 898 SdHoareTripleChecker+Invalid, 760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-20 06:29:50,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 898 Invalid, 760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-20 06:29:50,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2024-11-20 06:29:50,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 1027. [2024-11-20 06:29:50,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 765 states have (on average 1.3790849673202614) internal successors, (1055), 765 states have internal predecessors, (1055), 252 states have call successors, (252), 9 states have call predecessors, (252), 9 states have return successors, (252), 252 states have call predecessors, (252), 252 states have call successors, (252) [2024-11-20 06:29:50,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1559 transitions. [2024-11-20 06:29:50,839 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1559 transitions. Word has length 195 [2024-11-20 06:29:50,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:29:50,839 INFO L471 AbstractCegarLoop]: Abstraction has 1027 states and 1559 transitions. [2024-11-20 06:29:50,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-20 06:29:50,840 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1559 transitions. [2024-11-20 06:29:50,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-20 06:29:50,842 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:29:50,842 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:29:50,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 06:29:50,842 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:29:50,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:29:50,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1413542774, now seen corresponding path program 1 times [2024-11-20 06:29:50,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:29:50,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123012107] [2024-11-20 06:29:50,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:29:50,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:29:50,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:51,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:29:51,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:51,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 06:29:51,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:51,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 06:29:51,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:51,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 06:29:51,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:51,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-20 06:29:51,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:51,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-20 06:29:51,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:51,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 06:29:51,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:51,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-20 06:29:51,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:51,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 06:29:51,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:51,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 06:29:51,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:51,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 06:29:51,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:51,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-20 06:29:51,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:51,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 06:29:51,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:51,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-20 06:29:51,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:51,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 06:29:51,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:51,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 06:29:51,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:51,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 06:29:51,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:51,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-20 06:29:51,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:51,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 06:29:51,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:51,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-20 06:29:51,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:51,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-20 06:29:51,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:51,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-20 06:29:51,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:51,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-20 06:29:51,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:51,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 06:29:51,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:51,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-20 06:29:51,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:51,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-20 06:29:51,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:51,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-20 06:29:51,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:51,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-20 06:29:51,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:51,520 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 153 proven. 3 refuted. 0 times theorem prover too weak. 1356 trivial. 0 not checked. [2024-11-20 06:29:51,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:29:51,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123012107] [2024-11-20 06:29:51,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123012107] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 06:29:51,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631590113] [2024-11-20 06:29:51,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:29:51,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 06:29:51,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 06:29:51,524 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 06:29:51,525 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 06:29:51,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:51,673 INFO L255 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-20 06:29:51,684 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 06:29:51,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 283 proven. 3 refuted. 0 times theorem prover too weak. 1226 trivial. 0 not checked. [2024-11-20 06:29:51,903 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 06:29:52,272 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 153 proven. 6 refuted. 0 times theorem prover too weak. 1353 trivial. 0 not checked. [2024-11-20 06:29:52,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631590113] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 06:29:52,274 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 06:29:52,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 15 [2024-11-20 06:29:52,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850248114] [2024-11-20 06:29:52,275 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 06:29:52,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-20 06:29:52,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:29:52,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-20 06:29:52,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2024-11-20 06:29:52,277 INFO L87 Difference]: Start difference. First operand 1027 states and 1559 transitions. Second operand has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 15 states have internal predecessors, (79), 2 states have call successors, (30), 2 states have call predecessors, (30), 6 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-20 06:29:52,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:29:52,876 INFO L93 Difference]: Finished difference Result 1602 states and 2382 transitions. [2024-11-20 06:29:52,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 06:29:52,877 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 15 states have internal predecessors, (79), 2 states have call successors, (30), 2 states have call predecessors, (30), 6 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) Word has length 195 [2024-11-20 06:29:52,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:29:52,883 INFO L225 Difference]: With dead ends: 1602 [2024-11-20 06:29:52,883 INFO L226 Difference]: Without dead ends: 650 [2024-11-20 06:29:52,886 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 439 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=242, Invalid=514, Unknown=0, NotChecked=0, Total=756 [2024-11-20 06:29:52,887 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 488 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 273 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 06:29:52,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 334 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [273 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 06:29:52,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2024-11-20 06:29:53,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 612. [2024-11-20 06:29:53,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 456 states have (on average 1.337719298245614) internal successors, (610), 456 states have internal predecessors, (610), 140 states have call successors, (140), 15 states have call predecessors, (140), 15 states have return successors, (140), 140 states have call predecessors, (140), 140 states have call successors, (140) [2024-11-20 06:29:53,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 890 transitions. [2024-11-20 06:29:53,013 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 890 transitions. Word has length 195 [2024-11-20 06:29:53,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:29:53,014 INFO L471 AbstractCegarLoop]: Abstraction has 612 states and 890 transitions. [2024-11-20 06:29:53,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 15 states have internal predecessors, (79), 2 states have call successors, (30), 2 states have call predecessors, (30), 6 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-20 06:29:53,014 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 890 transitions. [2024-11-20 06:29:53,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-20 06:29:53,016 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:29:53,016 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:29:53,027 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-20 06:29:53,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-20 06:29:53,217 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:29:53,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:29:53,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1689128013, now seen corresponding path program 1 times [2024-11-20 06:29:53,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:29:53,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860563364] [2024-11-20 06:29:53,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:29:53,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:29:53,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:53,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:29:53,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:53,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 06:29:53,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:53,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 06:29:53,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:53,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 06:29:53,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:53,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-20 06:29:53,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:53,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-20 06:29:53,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:53,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 06:29:53,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:53,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-20 06:29:53,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:53,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 06:29:53,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:53,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 06:29:53,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:53,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 06:29:53,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:53,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-20 06:29:53,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:53,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 06:29:53,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:53,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-20 06:29:53,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:53,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 06:29:53,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:53,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 06:29:53,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:53,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 06:29:53,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:53,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-20 06:29:53,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:53,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 06:29:53,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:53,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-20 06:29:53,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:53,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-20 06:29:53,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:53,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-20 06:29:53,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:53,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-20 06:29:53,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:53,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 06:29:53,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:53,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-20 06:29:53,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:53,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-20 06:29:53,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:53,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-20 06:29:53,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:53,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-20 06:29:53,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:53,626 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-20 06:29:53,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:29:53,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860563364] [2024-11-20 06:29:53,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860563364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:29:53,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:29:53,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 06:29:53,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337148095] [2024-11-20 06:29:53,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:29:53,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 06:29:53,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:29:53,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 06:29:53,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 06:29:53,630 INFO L87 Difference]: Start difference. First operand 612 states and 890 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-20 06:29:54,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:29:54,742 INFO L93 Difference]: Finished difference Result 1444 states and 2095 transitions. [2024-11-20 06:29:54,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 06:29:54,743 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 196 [2024-11-20 06:29:54,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:29:54,749 INFO L225 Difference]: With dead ends: 1444 [2024-11-20 06:29:54,749 INFO L226 Difference]: Without dead ends: 931 [2024-11-20 06:29:54,751 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-20 06:29:54,752 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 376 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-20 06:29:54,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [376 Valid, 600 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-20 06:29:54,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2024-11-20 06:29:54,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 775. [2024-11-20 06:29:54,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 775 states, 588 states have (on average 1.3299319727891157) internal successors, (782), 588 states have internal predecessors, (782), 168 states have call successors, (168), 18 states have call predecessors, (168), 18 states have return successors, (168), 168 states have call predecessors, (168), 168 states have call successors, (168) [2024-11-20 06:29:54,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 775 states to 775 states and 1118 transitions. [2024-11-20 06:29:54,939 INFO L78 Accepts]: Start accepts. Automaton has 775 states and 1118 transitions. Word has length 196 [2024-11-20 06:29:54,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:29:54,940 INFO L471 AbstractCegarLoop]: Abstraction has 775 states and 1118 transitions. [2024-11-20 06:29:54,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-20 06:29:54,940 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states and 1118 transitions. [2024-11-20 06:29:54,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-20 06:29:54,942 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:29:54,942 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:29:54,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 06:29:54,943 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:29:54,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:29:54,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1587424223, now seen corresponding path program 1 times [2024-11-20 06:29:54,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:29:54,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748440849] [2024-11-20 06:29:54,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:29:54,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:29:55,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 06:29:55,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1168649935] [2024-11-20 06:29:55,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:29:55,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 06:29:55,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 06:29:55,076 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 06:29:55,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 06:29:55,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:55,241 INFO L255 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 06:29:55,250 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 06:29:55,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-20 06:29:55,299 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 06:29:55,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:29:55,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748440849] [2024-11-20 06:29:55,300 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 06:29:55,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168649935] [2024-11-20 06:29:55,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1168649935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:29:55,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:29:55,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 06:29:55,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954273567] [2024-11-20 06:29:55,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:29:55,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 06:29:55,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:29:55,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 06:29:55,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 06:29:55,303 INFO L87 Difference]: Start difference. First operand 775 states and 1118 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-20 06:29:55,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:29:55,869 INFO L93 Difference]: Finished difference Result 1849 states and 2673 transitions. [2024-11-20 06:29:55,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 06:29:55,870 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 197 [2024-11-20 06:29:55,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:29:55,878 INFO L225 Difference]: With dead ends: 1849 [2024-11-20 06:29:55,878 INFO L226 Difference]: Without dead ends: 1189 [2024-11-20 06:29:55,881 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 06:29:55,882 INFO L432 NwaCegarLoop]: 357 mSDtfsCounter, 212 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 06:29:55,882 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 724 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 06:29:55,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1189 states. [2024-11-20 06:29:56,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1189 to 1035. [2024-11-20 06:29:56,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1035 states, 786 states have (on average 1.3193384223918576) internal successors, (1037), 786 states have internal predecessors, (1037), 224 states have call successors, (224), 24 states have call predecessors, (224), 24 states have return successors, (224), 224 states have call predecessors, (224), 224 states have call successors, (224) [2024-11-20 06:29:56,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1485 transitions. [2024-11-20 06:29:56,135 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1485 transitions. Word has length 197 [2024-11-20 06:29:56,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:29:56,136 INFO L471 AbstractCegarLoop]: Abstraction has 1035 states and 1485 transitions. [2024-11-20 06:29:56,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-20 06:29:56,136 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1485 transitions. [2024-11-20 06:29:56,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-20 06:29:56,138 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:29:56,138 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:29:56,148 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-20 06:29:56,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-20 06:29:56,340 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:29:56,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:29:56,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1260422843, now seen corresponding path program 1 times [2024-11-20 06:29:56,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:29:56,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698178192] [2024-11-20 06:29:56,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:29:56,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:29:56,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:56,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:29:56,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:56,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 06:29:56,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:56,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 06:29:56,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:56,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 06:29:56,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:56,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-20 06:29:56,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:56,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-20 06:29:56,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:56,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 06:29:56,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:56,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-20 06:29:56,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:56,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 06:29:56,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:56,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 06:29:56,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:56,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 06:29:56,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:56,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-20 06:29:56,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:56,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 06:29:56,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:56,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-20 06:29:56,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:56,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 06:29:56,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:56,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 06:29:56,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:56,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 06:29:56,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:56,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-20 06:29:56,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:56,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 06:29:56,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:56,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-20 06:29:56,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:56,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-20 06:29:56,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:56,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-20 06:29:56,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:56,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-20 06:29:56,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:56,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 06:29:56,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:56,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-20 06:29:56,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:56,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-20 06:29:56,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:56,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-20 06:29:56,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:56,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-20 06:29:56,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:56,992 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-20 06:29:56,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:29:56,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698178192] [2024-11-20 06:29:56,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698178192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:29:56,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:29:56,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 06:29:56,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586802562] [2024-11-20 06:29:56,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:29:56,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 06:29:56,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:29:56,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 06:29:56,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 06:29:56,996 INFO L87 Difference]: Start difference. First operand 1035 states and 1485 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-20 06:29:57,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:29:57,938 INFO L93 Difference]: Finished difference Result 2154 states and 3088 transitions. [2024-11-20 06:29:57,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 06:29:57,938 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 197 [2024-11-20 06:29:57,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:29:57,946 INFO L225 Difference]: With dead ends: 2154 [2024-11-20 06:29:57,946 INFO L226 Difference]: Without dead ends: 1253 [2024-11-20 06:29:57,949 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-20 06:29:57,949 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 324 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 06:29:57,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 567 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 06:29:57,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1253 states. [2024-11-20 06:29:58,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 1005. [2024-11-20 06:29:58,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 756 states have (on average 1.310846560846561) internal successors, (991), 756 states have internal predecessors, (991), 224 states have call successors, (224), 24 states have call predecessors, (224), 24 states have return successors, (224), 224 states have call predecessors, (224), 224 states have call successors, (224) [2024-11-20 06:29:58,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1439 transitions. [2024-11-20 06:29:58,152 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1439 transitions. Word has length 197 [2024-11-20 06:29:58,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:29:58,152 INFO L471 AbstractCegarLoop]: Abstraction has 1005 states and 1439 transitions. [2024-11-20 06:29:58,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-20 06:29:58,153 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1439 transitions. [2024-11-20 06:29:58,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-20 06:29:58,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:29:58,155 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:29:58,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 06:29:58,155 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:29:58,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:29:58,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1041172107, now seen corresponding path program 1 times [2024-11-20 06:29:58,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:29:58,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579166699] [2024-11-20 06:29:58,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:29:58,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:29:58,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 06:29:58,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1292905908] [2024-11-20 06:29:58,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:29:58,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 06:29:58,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 06:29:58,256 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 06:29:58,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 06:29:59,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:29:59,175 INFO L255 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-11-20 06:29:59,182 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 06:30:02,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 947 proven. 180 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2024-11-20 06:30:02,589 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 06:30:14,461 WARN L286 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-20 06:30:20,858 WARN L286 SmtUtils]: Spent 5.44s on a formula simplification. DAG size of input: 28 DAG size of output: 24 (called from [L 188] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne) [2024-11-20 06:30:29,448 WARN L286 SmtUtils]: Spent 8.09s on a formula simplification. DAG size of input: 30 DAG size of output: 26 (called from [L 188] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne)