./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-86.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-86.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 ce9fa65ad297a46fd1c0c7bb56056c5a0304efd02803c9735a082016b49852e1 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 14:17:01,541 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 14:17:01,611 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 14:17:01,617 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 14:17:01,617 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 14:17:01,635 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 14:17:01,635 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 14:17:01,636 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 14:17:01,636 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 14:17:01,637 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 14:17:01,637 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 14:17:01,637 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 14:17:01,638 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 14:17:01,638 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 14:17:01,638 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 14:17:01,639 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 14:17:01,640 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 14:17:01,640 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 14:17:01,640 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 14:17:01,640 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 14:17:01,641 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 14:17:01,644 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 14:17:01,645 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 14:17:01,645 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 14:17:01,645 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 14:17:01,645 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 14:17:01,645 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 14:17:01,646 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 14:17:01,646 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 14:17:01,646 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 14:17:01,646 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 14:17:01,646 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 14:17:01,647 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 14:17:01,647 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 14:17:01,647 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 14:17:01,647 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 14:17:01,648 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 14:17:01,648 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 14:17:01,648 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 14:17:01,650 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 14:17:01,650 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 14:17:01,650 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 14:17:01,650 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce9fa65ad297a46fd1c0c7bb56056c5a0304efd02803c9735a082016b49852e1 [2024-11-16 14:17:01,877 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 14:17:01,900 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 14:17:01,905 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 14:17:01,906 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 14:17:01,906 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 14:17:01,908 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-86.i [2024-11-16 14:17:03,310 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 14:17:03,519 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 14:17:03,520 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-86.i [2024-11-16 14:17:03,530 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98c5fc5d7/cd4bbe93023f4d6cac8f9d0adeaa1adb/FLAGecb09e06e [2024-11-16 14:17:03,542 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98c5fc5d7/cd4bbe93023f4d6cac8f9d0adeaa1adb [2024-11-16 14:17:03,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 14:17:03,546 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 14:17:03,547 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 14:17:03,548 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 14:17:03,553 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 14:17:03,554 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 02:17:03" (1/1) ... [2024-11-16 14:17:03,555 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fa5b835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:17:03, skipping insertion in model container [2024-11-16 14:17:03,555 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 02:17:03" (1/1) ... [2024-11-16 14:17:03,584 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 14:17:03,836 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_fillercode_fillercodestructure_filler-pe-co_file-86.i[919,932] [2024-11-16 14:17:03,910 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 14:17:03,921 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 14:17:03,930 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_fillercode_fillercodestructure_filler-pe-co_file-86.i[919,932] [2024-11-16 14:17:03,958 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 14:17:03,982 INFO L204 MainTranslator]: Completed translation [2024-11-16 14:17:03,986 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:17:03 WrapperNode [2024-11-16 14:17:03,986 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 14:17:03,987 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 14:17:03,987 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 14:17:03,987 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 14:17:03,994 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:17:03" (1/1) ... [2024-11-16 14:17:04,003 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:17:03" (1/1) ... [2024-11-16 14:17:04,046 INFO L138 Inliner]: procedures = 26, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 235 [2024-11-16 14:17:04,046 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 14:17:04,047 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 14:17:04,047 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 14:17:04,047 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 14:17:04,057 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:17:03" (1/1) ... [2024-11-16 14:17:04,058 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:17:03" (1/1) ... [2024-11-16 14:17:04,063 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:17:03" (1/1) ... [2024-11-16 14:17:04,092 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]. [2024-11-16 14:17:04,092 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:17:03" (1/1) ... [2024-11-16 14:17:04,092 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:17:03" (1/1) ... [2024-11-16 14:17:04,107 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:17:03" (1/1) ... [2024-11-16 14:17:04,109 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:17:03" (1/1) ... [2024-11-16 14:17:04,116 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:17:03" (1/1) ... [2024-11-16 14:17:04,118 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:17:03" (1/1) ... [2024-11-16 14:17:04,126 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 14:17:04,127 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 14:17:04,127 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 14:17:04,127 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 14:17:04,128 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:17:03" (1/1) ... [2024-11-16 14:17:04,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 14:17:04,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 14:17:04,160 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) [2024-11-16 14:17:04,167 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 [2024-11-16 14:17:04,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 14:17:04,208 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 14:17:04,209 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 14:17:04,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 14:17:04,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 14:17:04,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 14:17:04,310 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 14:17:04,312 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 14:17:04,792 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-16 14:17:04,792 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 14:17:04,823 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 14:17:04,824 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 14:17:04,824 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 02:17:04 BoogieIcfgContainer [2024-11-16 14:17:04,824 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 14:17:04,827 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 14:17:04,827 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 14:17:04,830 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 14:17:04,830 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 02:17:03" (1/3) ... [2024-11-16 14:17:04,831 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2940ff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 02:17:04, skipping insertion in model container [2024-11-16 14:17:04,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:17:03" (2/3) ... [2024-11-16 14:17:04,832 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2940ff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 02:17:04, skipping insertion in model container [2024-11-16 14:17:04,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 02:17:04" (3/3) ... [2024-11-16 14:17:04,834 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-co_file-86.i [2024-11-16 14:17:04,850 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 14:17:04,850 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 14:17:04,903 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 14:17:04,911 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;@2628e3ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 14:17:04,911 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 14:17:04,916 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 70 states have (on average 1.4714285714285715) internal successors, (103), 71 states have internal predecessors, (103), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-16 14:17:04,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 14:17:04,933 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:17:04,934 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:17:04,935 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:17:04,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:17:04,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1932599766, now seen corresponding path program 1 times [2024-11-16 14:17:04,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:17:04,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582175572] [2024-11-16 14:17:04,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:17:04,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:17:05,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:05,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:17:05,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:05,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:17:05,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:05,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:17:05,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:05,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:17:05,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:05,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:17:05,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:05,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:17:05,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:05,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:17:05,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:05,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:17:05,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:05,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:17:05,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:05,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:17:05,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:05,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:17:05,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:05,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:17:05,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:05,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 14:17:05,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:05,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:17:05,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:05,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 14:17:05,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:05,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 14:17:05,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:05,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 14:17:05,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:05,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 14:17:05,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:05,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 14:17:05,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:05,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 14:17:05,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:05,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 14:17:05,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:05,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 14:17:05,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:05,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 14:17:05,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:05,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 14:17:05,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:05,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 14:17:05,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:05,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 14:17:05,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:05,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 14:17:05,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:05,569 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-16 14:17:05,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:17:05,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582175572] [2024-11-16 14:17:05,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582175572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:17:05,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:17:05,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 14:17:05,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044844419] [2024-11-16 14:17:05,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:17:05,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 14:17:05,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:17:05,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 14:17:05,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 14:17:05,608 INFO L87 Difference]: Start difference. First operand has 100 states, 70 states have (on average 1.4714285714285715) internal successors, (103), 71 states have internal predecessors, (103), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-16 14:17:05,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:17:05,654 INFO L93 Difference]: Finished difference Result 192 states and 334 transitions. [2024-11-16 14:17:05,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 14:17:05,657 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) Word has length 176 [2024-11-16 14:17:05,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:17:05,667 INFO L225 Difference]: With dead ends: 192 [2024-11-16 14:17:05,667 INFO L226 Difference]: Without dead ends: 95 [2024-11-16 14:17:05,674 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 14:17:05,678 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 14:17:05,679 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 14:17:05,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-16 14:17:05,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2024-11-16 14:17:05,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 66 states have (on average 1.4242424242424243) internal successors, (94), 66 states have internal predecessors, (94), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-16 14:17:05,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 148 transitions. [2024-11-16 14:17:05,737 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 148 transitions. Word has length 176 [2024-11-16 14:17:05,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:17:05,737 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 148 transitions. [2024-11-16 14:17:05,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-16 14:17:05,738 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 148 transitions. [2024-11-16 14:17:05,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 14:17:05,740 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:17:05,741 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:17:05,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 14:17:05,741 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:17:05,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:17:05,742 INFO L85 PathProgramCache]: Analyzing trace with hash -686233397, now seen corresponding path program 1 times [2024-11-16 14:17:05,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:17:05,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069263203] [2024-11-16 14:17:05,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:17:05,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:17:05,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:17:06,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:17:06,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:17:06,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:17:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:17:06,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:17:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:17:06,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:17:06,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:17:06,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:17:06,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:17:06,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:17:06,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 14:17:06,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:17:06,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 14:17:06,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 14:17:06,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 14:17:06,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 14:17:06,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 14:17:06,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 14:17:06,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 14:17:06,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 14:17:06,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 14:17:06,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 14:17:06,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 14:17:06,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 14:17:06,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 14:17:06,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,231 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-16 14:17:06,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:17:06,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069263203] [2024-11-16 14:17:06,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069263203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:17:06,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:17:06,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 14:17:06,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940365059] [2024-11-16 14:17:06,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:17:06,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 14:17:06,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:17:06,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 14:17:06,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 14:17:06,237 INFO L87 Difference]: Start difference. First operand 95 states and 148 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 14:17:06,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:17:06,297 INFO L93 Difference]: Finished difference Result 188 states and 295 transitions. [2024-11-16 14:17:06,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 14:17:06,298 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 176 [2024-11-16 14:17:06,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:17:06,301 INFO L225 Difference]: With dead ends: 188 [2024-11-16 14:17:06,301 INFO L226 Difference]: Without dead ends: 96 [2024-11-16 14:17:06,306 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 14:17:06,307 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 0 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 14:17:06,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 281 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 14:17:06,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-16 14:17:06,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-16 14:17:06,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 67 states have (on average 1.4179104477611941) internal successors, (95), 67 states have internal predecessors, (95), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-16 14:17:06,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 149 transitions. [2024-11-16 14:17:06,332 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 149 transitions. Word has length 176 [2024-11-16 14:17:06,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:17:06,334 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 149 transitions. [2024-11-16 14:17:06,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 14:17:06,335 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 149 transitions. [2024-11-16 14:17:06,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 14:17:06,341 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:17:06,341 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:17:06,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 14:17:06,342 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:17:06,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:17:06,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1056576938, now seen corresponding path program 1 times [2024-11-16 14:17:06,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:17:06,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663678428] [2024-11-16 14:17:06,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:17:06,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:17:06,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:17:06,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:17:06,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:17:06,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:17:06,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:17:06,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:17:06,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:17:06,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:17:06,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:17:06,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:17:06,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:17:06,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:17:06,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 14:17:06,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:17:06,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 14:17:06,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 14:17:06,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 14:17:06,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 14:17:06,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 14:17:06,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 14:17:06,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 14:17:06,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 14:17:06,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 14:17:06,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 14:17:06,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 14:17:06,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 14:17:06,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 14:17:06,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:06,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-16 14:17:06,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:17:06,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663678428] [2024-11-16 14:17:06,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663678428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:17:06,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:17:06,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 14:17:06,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769543962] [2024-11-16 14:17:06,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:17:06,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 14:17:06,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:17:06,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 14:17:06,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 14:17:06,752 INFO L87 Difference]: Start difference. First operand 96 states and 149 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 14:17:07,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:17:07,040 INFO L93 Difference]: Finished difference Result 284 states and 443 transitions. [2024-11-16 14:17:07,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 14:17:07,040 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 176 [2024-11-16 14:17:07,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:17:07,043 INFO L225 Difference]: With dead ends: 284 [2024-11-16 14:17:07,043 INFO L226 Difference]: Without dead ends: 191 [2024-11-16 14:17:07,044 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 14:17:07,045 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 117 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 14:17:07,046 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 483 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 14:17:07,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-11-16 14:17:07,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 144. [2024-11-16 14:17:07,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 87 states have (on average 1.3218390804597702) internal successors, (115), 87 states have internal predecessors, (115), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-16 14:17:07,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 223 transitions. [2024-11-16 14:17:07,068 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 223 transitions. Word has length 176 [2024-11-16 14:17:07,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:17:07,069 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 223 transitions. [2024-11-16 14:17:07,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 14:17:07,070 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 223 transitions. [2024-11-16 14:17:07,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 14:17:07,072 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:17:07,072 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:17:07,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 14:17:07,073 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:17:07,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:17:07,073 INFO L85 PathProgramCache]: Analyzing trace with hash -981479351, now seen corresponding path program 1 times [2024-11-16 14:17:07,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:17:07,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244797069] [2024-11-16 14:17:07,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:17:07,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:17:07,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:21,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:17:21,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:21,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:17:21,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:21,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:17:21,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:21,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:17:21,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:21,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:17:21,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:21,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:17:21,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:21,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:17:21,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:21,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:17:21,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:21,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:17:21,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:21,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:17:21,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:21,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:17:21,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:21,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:17:21,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:21,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 14:17:21,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:21,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:17:21,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:21,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 14:17:21,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:21,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 14:17:21,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:21,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 14:17:21,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:21,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 14:17:21,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:21,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 14:17:21,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:21,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 14:17:21,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:21,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 14:17:21,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:21,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 14:17:21,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:21,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 14:17:21,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:21,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 14:17:21,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:21,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 14:17:21,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:21,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 14:17:21,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:21,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 14:17:21,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:21,281 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-16 14:17:21,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:17:21,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244797069] [2024-11-16 14:17:21,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244797069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:17:21,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:17:21,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-16 14:17:21,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494270311] [2024-11-16 14:17:21,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:17:21,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 14:17:21,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:17:21,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 14:17:21,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-11-16 14:17:21,286 INFO L87 Difference]: Start difference. First operand 144 states and 223 transitions. Second operand has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 14:17:25,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:17:25,491 INFO L93 Difference]: Finished difference Result 447 states and 694 transitions. [2024-11-16 14:17:25,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 14:17:25,492 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 176 [2024-11-16 14:17:25,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:17:25,498 INFO L225 Difference]: With dead ends: 447 [2024-11-16 14:17:25,498 INFO L226 Difference]: Without dead ends: 354 [2024-11-16 14:17:25,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 58 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=160, Invalid=490, Unknown=0, NotChecked=0, Total=650 [2024-11-16 14:17:25,503 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 940 mSDsluCounter, 793 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 940 SdHoareTripleChecker+Valid, 907 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-16 14:17:25,504 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [940 Valid, 907 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-16 14:17:25,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-11-16 14:17:25,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 186. [2024-11-16 14:17:25,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 129 states have (on average 1.3953488372093024) internal successors, (180), 129 states have internal predecessors, (180), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-16 14:17:25,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 288 transitions. [2024-11-16 14:17:25,541 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 288 transitions. Word has length 176 [2024-11-16 14:17:25,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:17:25,542 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 288 transitions. [2024-11-16 14:17:25,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 14:17:25,542 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 288 transitions. [2024-11-16 14:17:25,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 14:17:25,548 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:17:25,548 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:17:25,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 14:17:25,548 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:17:25,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:17:25,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1825951222, now seen corresponding path program 1 times [2024-11-16 14:17:25,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:17:25,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610264377] [2024-11-16 14:17:25,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:17:25,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:17:25,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:25,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:17:25,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:25,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:17:25,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:25,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:17:25,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:25,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:17:25,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:25,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:17:25,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:25,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:17:25,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:25,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:17:25,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:25,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:17:25,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:25,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:17:25,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:25,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:17:25,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:25,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:17:25,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:25,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:17:25,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:25,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 14:17:25,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:25,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:17:25,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:25,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 14:17:25,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:25,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 14:17:25,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:25,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 14:17:25,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:25,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 14:17:25,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:25,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 14:17:25,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:25,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 14:17:25,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:25,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 14:17:25,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:25,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 14:17:25,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:25,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 14:17:25,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:25,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 14:17:25,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:25,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 14:17:25,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:25,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 14:17:25,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:25,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 14:17:25,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:25,665 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-16 14:17:25,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:17:25,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610264377] [2024-11-16 14:17:25,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610264377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:17:25,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:17:25,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 14:17:25,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776186944] [2024-11-16 14:17:25,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:17:25,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 14:17:25,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:17:25,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 14:17:25,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 14:17:25,670 INFO L87 Difference]: Start difference. First operand 186 states and 288 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 14:17:25,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:17:25,721 INFO L93 Difference]: Finished difference Result 371 states and 578 transitions. [2024-11-16 14:17:25,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 14:17:25,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 176 [2024-11-16 14:17:25,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:17:25,725 INFO L225 Difference]: With dead ends: 371 [2024-11-16 14:17:25,725 INFO L226 Difference]: Without dead ends: 278 [2024-11-16 14:17:25,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 14:17:25,729 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 140 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 14:17:25,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 324 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 14:17:25,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2024-11-16 14:17:25,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 275. [2024-11-16 14:17:25,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 190 states have (on average 1.394736842105263) internal successors, (265), 190 states have internal predecessors, (265), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-16 14:17:25,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 427 transitions. [2024-11-16 14:17:25,762 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 427 transitions. Word has length 176 [2024-11-16 14:17:25,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:17:25,763 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 427 transitions. [2024-11-16 14:17:25,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 14:17:25,763 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 427 transitions. [2024-11-16 14:17:25,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-16 14:17:25,765 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:17:25,765 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:17:25,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 14:17:25,766 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:17:25,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:17:25,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1453953161, now seen corresponding path program 1 times [2024-11-16 14:17:25,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:17:25,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520160999] [2024-11-16 14:17:25,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:17:25,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:17:25,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:32,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:17:32,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:32,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:17:32,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:32,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:17:32,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:32,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:17:32,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:32,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:17:32,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:32,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:17:32,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:32,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:17:32,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:32,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:17:32,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:32,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:17:32,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:32,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:17:32,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:32,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:17:32,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:32,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:17:32,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:32,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 14:17:32,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:32,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:17:32,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:32,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 14:17:32,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:32,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 14:17:32,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:32,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 14:17:32,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:32,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 14:17:32,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:32,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 14:17:32,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:32,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 14:17:32,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:32,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 14:17:32,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:32,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 14:17:32,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:32,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 14:17:32,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:32,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 14:17:32,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:32,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 14:17:32,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:32,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 14:17:32,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:32,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 14:17:32,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:32,659 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-16 14:17:32,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:17:32,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520160999] [2024-11-16 14:17:32,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520160999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:17:32,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:17:32,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-16 14:17:32,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933870858] [2024-11-16 14:17:32,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:17:32,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-16 14:17:32,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:17:32,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-16 14:17:32,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-11-16 14:17:32,663 INFO L87 Difference]: Start difference. First operand 275 states and 427 transitions. Second operand has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 14:17:35,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:17:35,138 INFO L93 Difference]: Finished difference Result 640 states and 988 transitions. [2024-11-16 14:17:35,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-16 14:17:35,139 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 177 [2024-11-16 14:17:35,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:17:35,143 INFO L225 Difference]: With dead ends: 640 [2024-11-16 14:17:35,143 INFO L226 Difference]: Without dead ends: 431 [2024-11-16 14:17:35,144 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2024-11-16 14:17:35,145 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 783 mSDsluCounter, 1101 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 1239 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 14:17:35,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [783 Valid, 1239 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 14:17:35,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2024-11-16 14:17:35,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 277. [2024-11-16 14:17:35,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 192 states have (on average 1.3854166666666667) internal successors, (266), 192 states have internal predecessors, (266), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-16 14:17:35,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 428 transitions. [2024-11-16 14:17:35,176 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 428 transitions. Word has length 177 [2024-11-16 14:17:35,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:17:35,176 INFO L471 AbstractCegarLoop]: Abstraction has 277 states and 428 transitions. [2024-11-16 14:17:35,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 14:17:35,177 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 428 transitions. [2024-11-16 14:17:35,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-16 14:17:35,178 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:17:35,179 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:17:35,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 14:17:35,179 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:17:35,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:17:35,179 INFO L85 PathProgramCache]: Analyzing trace with hash -182607692, now seen corresponding path program 1 times [2024-11-16 14:17:35,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:17:35,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196150951] [2024-11-16 14:17:35,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:17:35,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:17:35,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:35,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:17:35,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:35,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:17:35,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:35,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:17:35,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:35,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:17:35,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:35,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:17:35,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:35,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:17:35,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:35,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:17:35,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:35,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:17:35,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:35,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:17:35,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:35,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:17:35,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:35,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:17:35,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:35,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:17:35,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:35,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 14:17:35,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:35,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:17:35,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:35,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 14:17:35,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:35,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 14:17:35,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:35,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 14:17:35,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:35,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 14:17:35,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:35,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 14:17:35,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:35,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 14:17:35,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:35,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 14:17:35,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:35,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 14:17:35,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:35,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 14:17:35,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:35,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 14:17:35,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:35,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 14:17:35,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:35,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 14:17:35,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:35,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 14:17:35,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:35,489 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-16 14:17:35,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:17:35,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196150951] [2024-11-16 14:17:35,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196150951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:17:35,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:17:35,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 14:17:35,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946076586] [2024-11-16 14:17:35,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:17:35,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 14:17:35,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:17:35,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 14:17:35,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 14:17:35,492 INFO L87 Difference]: Start difference. First operand 277 states and 428 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 14:17:35,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:17:35,540 INFO L93 Difference]: Finished difference Result 521 states and 813 transitions. [2024-11-16 14:17:35,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 14:17:35,541 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 177 [2024-11-16 14:17:35,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:17:35,544 INFO L225 Difference]: With dead ends: 521 [2024-11-16 14:17:35,544 INFO L226 Difference]: Without dead ends: 335 [2024-11-16 14:17:35,545 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 14:17:35,547 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 47 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 14:17:35,547 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 310 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 14:17:35,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2024-11-16 14:17:35,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 277. [2024-11-16 14:17:35,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 192 states have (on average 1.3697916666666667) internal successors, (263), 192 states have internal predecessors, (263), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-16 14:17:35,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 425 transitions. [2024-11-16 14:17:35,564 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 425 transitions. Word has length 177 [2024-11-16 14:17:35,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:17:35,565 INFO L471 AbstractCegarLoop]: Abstraction has 277 states and 425 transitions. [2024-11-16 14:17:35,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 14:17:35,565 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 425 transitions. [2024-11-16 14:17:35,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-16 14:17:35,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:17:35,567 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:17:35,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 14:17:35,567 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:17:35,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:17:35,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1324944117, now seen corresponding path program 1 times [2024-11-16 14:17:35,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:17:35,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116694984] [2024-11-16 14:17:35,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:17:35,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:17:35,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:40,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:17:40,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:40,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:17:40,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:40,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:17:40,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:40,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:17:40,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:40,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:17:40,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:40,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:17:40,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:40,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:17:40,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:40,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:17:40,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:40,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:17:40,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:40,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:17:40,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:40,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:17:40,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:40,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:17:40,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:40,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 14:17:40,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:40,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:17:40,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:40,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 14:17:40,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:40,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 14:17:40,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:40,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 14:17:40,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:40,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 14:17:40,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:40,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 14:17:40,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:40,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 14:17:40,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:40,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 14:17:40,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:40,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 14:17:40,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:40,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 14:17:40,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:40,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 14:17:40,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:40,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 14:17:40,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:40,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 14:17:40,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:40,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 14:17:40,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:40,491 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-16 14:17:40,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:17:40,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116694984] [2024-11-16 14:17:40,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116694984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:17:40,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:17:40,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-16 14:17:40,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661355488] [2024-11-16 14:17:40,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:17:40,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-16 14:17:40,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:17:40,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-16 14:17:40,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-11-16 14:17:40,493 INFO L87 Difference]: Start difference. First operand 277 states and 425 transitions. Second operand has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-16 14:17:42,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:17:42,321 INFO L93 Difference]: Finished difference Result 465 states and 701 transitions. [2024-11-16 14:17:42,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-16 14:17:42,322 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 177 [2024-11-16 14:17:42,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:17:42,326 INFO L225 Difference]: With dead ends: 465 [2024-11-16 14:17:42,326 INFO L226 Difference]: Without dead ends: 462 [2024-11-16 14:17:42,327 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=276, Invalid=846, Unknown=0, NotChecked=0, Total=1122 [2024-11-16 14:17:42,328 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 1034 mSDsluCounter, 1048 mSDsCounter, 0 mSdLazyCounter, 1026 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1034 SdHoareTripleChecker+Valid, 1177 SdHoareTripleChecker+Invalid, 1142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 1026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 14:17:42,330 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1034 Valid, 1177 Invalid, 1142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 1026 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 14:17:42,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2024-11-16 14:17:42,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 277. [2024-11-16 14:17:42,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 192 states have (on average 1.3697916666666667) internal successors, (263), 192 states have internal predecessors, (263), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-16 14:17:42,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 425 transitions. [2024-11-16 14:17:42,352 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 425 transitions. Word has length 177 [2024-11-16 14:17:42,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:17:42,353 INFO L471 AbstractCegarLoop]: Abstraction has 277 states and 425 transitions. [2024-11-16 14:17:42,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-16 14:17:42,353 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 425 transitions. [2024-11-16 14:17:42,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-16 14:17:42,355 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:17:42,355 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:17:42,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 14:17:42,355 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:17:42,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:17:42,356 INFO L85 PathProgramCache]: Analyzing trace with hash -259135853, now seen corresponding path program 1 times [2024-11-16 14:17:42,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:17:42,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146579376] [2024-11-16 14:17:42,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:17:42,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:17:42,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:42,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:17:42,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:42,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:17:42,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:42,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:17:42,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:42,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:17:42,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:42,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:17:42,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:42,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:17:42,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:42,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:17:42,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:42,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:17:42,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:42,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:17:42,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:42,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:17:42,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:42,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:17:42,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:42,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:17:42,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:42,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 14:17:42,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:42,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:17:42,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:42,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 14:17:42,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:42,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 14:17:42,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:42,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 14:17:42,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:42,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 14:17:42,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:42,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 14:17:42,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:42,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 14:17:42,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:42,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 14:17:42,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:42,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 14:17:42,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:42,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 14:17:42,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:42,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 14:17:42,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:42,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 14:17:42,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:42,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 14:17:42,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:42,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 14:17:42,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:42,595 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-16 14:17:42,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:17:42,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146579376] [2024-11-16 14:17:42,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146579376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:17:42,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:17:42,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 14:17:42,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391174450] [2024-11-16 14:17:42,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:17:42,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 14:17:42,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:17:42,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 14:17:42,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 14:17:42,599 INFO L87 Difference]: Start difference. First operand 277 states and 425 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 14:17:42,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:17:42,639 INFO L93 Difference]: Finished difference Result 553 states and 852 transitions. [2024-11-16 14:17:42,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 14:17:42,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 177 [2024-11-16 14:17:42,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:17:42,642 INFO L225 Difference]: With dead ends: 553 [2024-11-16 14:17:42,642 INFO L226 Difference]: Without dead ends: 371 [2024-11-16 14:17:42,643 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 14:17:42,644 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 86 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 14:17:42,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 324 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 14:17:42,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-11-16 14:17:42,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 368. [2024-11-16 14:17:42,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 255 states have (on average 1.3725490196078431) internal successors, (350), 255 states have internal predecessors, (350), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-16 14:17:42,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 566 transitions. [2024-11-16 14:17:42,663 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 566 transitions. Word has length 177 [2024-11-16 14:17:42,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:17:42,664 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 566 transitions. [2024-11-16 14:17:42,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 14:17:42,664 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 566 transitions. [2024-11-16 14:17:42,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-16 14:17:42,666 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:17:42,666 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:17:42,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 14:17:42,666 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:17:42,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:17:42,667 INFO L85 PathProgramCache]: Analyzing trace with hash -130053134, now seen corresponding path program 1 times [2024-11-16 14:17:42,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:17:42,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831053316] [2024-11-16 14:17:42,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:17:42,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:17:42,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:53,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:17:53,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:53,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:17:53,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:53,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:17:53,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:53,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:17:53,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:53,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:17:53,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:53,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:17:53,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:53,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:17:53,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:53,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:17:53,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:53,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:17:53,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:53,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:17:53,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:53,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:17:53,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:53,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:17:53,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:53,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 14:17:53,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:53,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:17:53,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:53,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 14:17:53,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:53,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 14:17:53,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:53,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 14:17:53,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:53,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 14:17:53,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:53,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 14:17:53,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:53,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 14:17:53,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:53,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 14:17:53,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:53,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 14:17:53,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:53,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 14:17:53,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:53,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 14:17:53,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:53,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 14:17:53,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:53,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 14:17:53,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:53,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 14:17:53,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:17:53,488 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-16 14:17:53,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:17:53,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831053316] [2024-11-16 14:17:53,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831053316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:17:53,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:17:53,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-16 14:17:53,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412727673] [2024-11-16 14:17:53,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:17:53,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-16 14:17:53,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:17:53,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-16 14:17:53,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-11-16 14:17:53,492 INFO L87 Difference]: Start difference. First operand 368 states and 566 transitions. Second operand has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 14:18:00,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:18:00,478 INFO L93 Difference]: Finished difference Result 599 states and 902 transitions. [2024-11-16 14:18:00,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-16 14:18:00,479 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 177 [2024-11-16 14:18:00,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:18:00,483 INFO L225 Difference]: With dead ends: 599 [2024-11-16 14:18:00,483 INFO L226 Difference]: Without dead ends: 596 [2024-11-16 14:18:00,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 58 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=275, Invalid=781, Unknown=0, NotChecked=0, Total=1056 [2024-11-16 14:18:00,485 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 727 mSDsluCounter, 1087 mSDsCounter, 0 mSdLazyCounter, 872 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 1234 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-16 14:18:00,486 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [727 Valid, 1234 Invalid, 982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 872 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-16 14:18:00,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2024-11-16 14:18:00,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 403. [2024-11-16 14:18:00,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 290 states have (on average 1.393103448275862) internal successors, (404), 290 states have internal predecessors, (404), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-16 14:18:00,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 620 transitions. [2024-11-16 14:18:00,523 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 620 transitions. Word has length 177 [2024-11-16 14:18:00,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:18:00,523 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 620 transitions. [2024-11-16 14:18:00,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 14:18:00,524 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 620 transitions. [2024-11-16 14:18:00,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-16 14:18:00,526 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:18:00,527 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:18:00,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 14:18:00,527 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:18:00,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:18:00,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1223256563, now seen corresponding path program 1 times [2024-11-16 14:18:00,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:18:00,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133133895] [2024-11-16 14:18:00,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:18:00,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:18:00,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:07,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:18:07,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:07,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:18:07,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:07,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:18:07,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:07,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:18:07,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:07,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:18:07,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:07,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:18:07,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:07,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:18:07,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:07,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:18:07,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:07,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:18:07,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:07,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:18:07,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:07,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:18:07,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:07,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:18:07,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:07,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 14:18:07,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:07,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:18:07,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:07,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 14:18:07,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:07,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 14:18:07,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:07,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 14:18:07,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:07,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 14:18:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:07,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 14:18:07,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:07,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 14:18:07,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:07,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 14:18:07,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:07,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 14:18:07,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:07,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 14:18:07,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:07,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 14:18:07,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:07,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 14:18:07,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:07,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 14:18:07,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:07,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 14:18:07,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:07,090 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-16 14:18:07,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:18:07,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133133895] [2024-11-16 14:18:07,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133133895] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:18:07,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:18:07,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-16 14:18:07,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447306051] [2024-11-16 14:18:07,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:18:07,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-16 14:18:07,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:18:07,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-16 14:18:07,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2024-11-16 14:18:07,093 INFO L87 Difference]: Start difference. First operand 403 states and 620 transitions. Second operand has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 14:18:11,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:18:11,094 INFO L93 Difference]: Finished difference Result 591 states and 894 transitions. [2024-11-16 14:18:11,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-16 14:18:11,095 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 177 [2024-11-16 14:18:11,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:18:11,099 INFO L225 Difference]: With dead ends: 591 [2024-11-16 14:18:11,100 INFO L226 Difference]: Without dead ends: 588 [2024-11-16 14:18:11,100 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=280, Invalid=712, Unknown=0, NotChecked=0, Total=992 [2024-11-16 14:18:11,101 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 769 mSDsluCounter, 1054 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 769 SdHoareTripleChecker+Valid, 1205 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-16 14:18:11,101 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [769 Valid, 1205 Invalid, 758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-16 14:18:11,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2024-11-16 14:18:11,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 403. [2024-11-16 14:18:11,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 290 states have (on average 1.393103448275862) internal successors, (404), 290 states have internal predecessors, (404), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-16 14:18:11,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 620 transitions. [2024-11-16 14:18:11,130 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 620 transitions. Word has length 177 [2024-11-16 14:18:11,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:18:11,132 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 620 transitions. [2024-11-16 14:18:11,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 14:18:11,132 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 620 transitions. [2024-11-16 14:18:11,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-16 14:18:11,134 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:18:11,134 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:18:11,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 14:18:11,135 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:18:11,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:18:11,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1191407738, now seen corresponding path program 1 times [2024-11-16 14:18:11,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:18:11,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45513482] [2024-11-16 14:18:11,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:18:11,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:18:11,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:22,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:18:22,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:22,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:18:22,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:22,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:18:22,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:22,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:18:22,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:22,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:18:22,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:22,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:18:22,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:22,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:18:22,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:22,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:18:22,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:22,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:18:22,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:22,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:18:22,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:22,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:18:22,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:22,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:18:22,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:22,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 14:18:22,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:22,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:18:22,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:22,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 14:18:22,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:22,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 14:18:22,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:22,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 14:18:22,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:22,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 14:18:22,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:22,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 14:18:22,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:22,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 14:18:22,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:22,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 14:18:22,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:22,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 14:18:22,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:22,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 14:18:22,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:22,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 14:18:22,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:22,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 14:18:22,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:22,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 14:18:22,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:22,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 14:18:22,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:18:22,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-16 14:18:22,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:18:22,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45513482] [2024-11-16 14:18:22,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45513482] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:18:22,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:18:22,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-16 14:18:22,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843494655] [2024-11-16 14:18:22,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:18:22,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-16 14:18:22,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:18:22,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-16 14:18:22,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2024-11-16 14:18:22,460 INFO L87 Difference]: Start difference. First operand 403 states and 620 transitions. Second operand has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27)