./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-52.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-52.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 f098e666db3f9742bca6c9015941c2c37c0c49da2c9d3887ddf402afe9877bb8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 06:26:00,999 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 06:26:01,083 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 06:26:01,090 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 06:26:01,091 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 06:26:01,120 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 06:26:01,120 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 06:26:01,120 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 06:26:01,121 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 06:26:01,122 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 06:26:01,122 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 06:26:01,122 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 06:26:01,123 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 06:26:01,123 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 06:26:01,124 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 06:26:01,125 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 06:26:01,125 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 06:26:01,125 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 06:26:01,125 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 06:26:01,125 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 06:26:01,126 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 06:26:01,129 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 06:26:01,129 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 06:26:01,129 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 06:26:01,129 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 06:26:01,130 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 06:26:01,130 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 06:26:01,130 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 06:26:01,130 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 06:26:01,130 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 06:26:01,130 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 06:26:01,130 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 06:26:01,131 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 06:26:01,131 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 06:26:01,131 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 06:26:01,131 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 06:26:01,131 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 06:26:01,131 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 06:26:01,131 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 06:26:01,132 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 06:26:01,132 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 06:26:01,132 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 06:26:01,132 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f098e666db3f9742bca6c9015941c2c37c0c49da2c9d3887ddf402afe9877bb8 [2024-10-24 06:26:01,365 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 06:26:01,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 06:26:01,390 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 06:26:01,391 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 06:26:01,392 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 06:26:01,393 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-52.i [2024-10-24 06:26:02,737 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 06:26:02,929 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 06:26:02,932 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-52.i [2024-10-24 06:26:02,948 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18fd7367e/bc855b7bfbe741d997a3b40a2a7105c4/FLAG4262ecd92 [2024-10-24 06:26:03,308 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18fd7367e/bc855b7bfbe741d997a3b40a2a7105c4 [2024-10-24 06:26:03,310 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 06:26:03,311 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 06:26:03,321 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 06:26:03,321 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 06:26:03,326 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 06:26:03,331 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:26:03" (1/1) ... [2024-10-24 06:26:03,332 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f45e61d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:26:03, skipping insertion in model container [2024-10-24 06:26:03,333 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:26:03" (1/1) ... [2024-10-24 06:26:03,368 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 06:26:03,523 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-52.i[915,928] [2024-10-24 06:26:03,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 06:26:03,694 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 06:26:03,712 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-52.i[915,928] [2024-10-24 06:26:03,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 06:26:03,783 INFO L204 MainTranslator]: Completed translation [2024-10-24 06:26:03,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:26:03 WrapperNode [2024-10-24 06:26:03,786 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 06:26:03,787 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 06:26:03,787 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 06:26:03,787 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 06:26:03,795 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:26:03" (1/1) ... [2024-10-24 06:26:03,810 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:26:03" (1/1) ... [2024-10-24 06:26:03,856 INFO L138 Inliner]: procedures = 26, calls = 41, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 211 [2024-10-24 06:26:03,858 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 06:26:03,859 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 06:26:03,859 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 06:26:03,859 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 06:26:03,871 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:26:03" (1/1) ... [2024-10-24 06:26:03,871 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:26:03" (1/1) ... [2024-10-24 06:26:03,878 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:26:03" (1/1) ... [2024-10-24 06:26:03,908 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]. [2024-10-24 06:26:03,909 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:26:03" (1/1) ... [2024-10-24 06:26:03,909 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:26:03" (1/1) ... [2024-10-24 06:26:03,924 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:26:03" (1/1) ... [2024-10-24 06:26:03,931 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:26:03" (1/1) ... [2024-10-24 06:26:03,937 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:26:03" (1/1) ... [2024-10-24 06:26:03,938 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:26:03" (1/1) ... [2024-10-24 06:26:03,945 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 06:26:03,949 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 06:26:03,949 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 06:26:03,949 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 06:26:03,950 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:26:03" (1/1) ... [2024-10-24 06:26:03,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 06:26:03,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 06:26:03,981 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) [2024-10-24 06:26:03,984 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 [2024-10-24 06:26:04,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 06:26:04,024 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 06:26:04,025 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 06:26:04,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 06:26:04,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 06:26:04,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 06:26:04,115 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 06:26:04,117 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 06:26:04,478 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-10-24 06:26:04,479 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 06:26:04,527 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 06:26:04,528 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 06:26:04,528 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:26:04 BoogieIcfgContainer [2024-10-24 06:26:04,528 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 06:26:04,530 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 06:26:04,530 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 06:26:04,534 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 06:26:04,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:26:03" (1/3) ... [2024-10-24 06:26:04,536 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36643765 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:26:04, skipping insertion in model container [2024-10-24 06:26:04,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:26:03" (2/3) ... [2024-10-24 06:26:04,537 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36643765 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:26:04, skipping insertion in model container [2024-10-24 06:26:04,537 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:26:04" (3/3) ... [2024-10-24 06:26:04,538 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-25_file-52.i [2024-10-24 06:26:04,553 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 06:26:04,554 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 06:26:04,612 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 06:26:04,618 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;@706101dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 06:26:04,618 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 06:26:04,622 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 50 states have internal predecessors, (70), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-24 06:26:04,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-10-24 06:26:04,635 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 06:26:04,636 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 06:26:04,637 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 06:26:04,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 06:26:04,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1536259501, now seen corresponding path program 1 times [2024-10-24 06:26:04,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 06:26:04,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593072838] [2024-10-24 06:26:04,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 06:26:04,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 06:26:04,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:04,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 06:26:04,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:04,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 06:26:04,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:04,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 06:26:04,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:04,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 06:26:04,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:05,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 06:26:05,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:05,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 06:26:05,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:05,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 06:26:05,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:05,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 06:26:05,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:05,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 06:26:05,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:05,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 06:26:05,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:05,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 06:26:05,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:05,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 06:26:05,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:05,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 06:26:05,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:05,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 06:26:05,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:05,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 06:26:05,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:05,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 06:26:05,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:05,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 06:26:05,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:05,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 06:26:05,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:05,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 06:26:05,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:05,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 06:26:05,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:05,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 06:26:05,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:05,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 06:26:05,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:05,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 06:26:05,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:05,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 06:26:05,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:05,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 06:26:05,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:05,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 06:26:05,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:05,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 06:26:05,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:05,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-24 06:26:05,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:05,151 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-10-24 06:26:05,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 06:26:05,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593072838] [2024-10-24 06:26:05,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593072838] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 06:26:05,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 06:26:05,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 06:26:05,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832359939] [2024-10-24 06:26:05,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 06:26:05,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 06:26:05,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 06:26:05,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 06:26:05,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 06:26:05,183 INFO L87 Difference]: Start difference. First operand has 80 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 50 states have internal predecessors, (70), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 2 states have call successors, (28) [2024-10-24 06:26:05,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 06:26:05,232 INFO L93 Difference]: Finished difference Result 157 states and 278 transitions. [2024-10-24 06:26:05,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 06:26:05,237 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 2 states have call successors, (28) Word has length 177 [2024-10-24 06:26:05,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 06:26:05,247 INFO L225 Difference]: With dead ends: 157 [2024-10-24 06:26:05,247 INFO L226 Difference]: Without dead ends: 78 [2024-10-24 06:26:05,251 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 06:26:05,256 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 06:26:05,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 06:26:05,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-10-24 06:26:05,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-10-24 06:26:05,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 48 states have (on average 1.3541666666666667) internal successors, (65), 48 states have internal predecessors, (65), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-24 06:26:05,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 121 transitions. [2024-10-24 06:26:05,314 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 121 transitions. Word has length 177 [2024-10-24 06:26:05,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 06:26:05,314 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 121 transitions. [2024-10-24 06:26:05,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 2 states have call successors, (28) [2024-10-24 06:26:05,315 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 121 transitions. [2024-10-24 06:26:05,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-10-24 06:26:05,319 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 06:26:05,319 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 06:26:05,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 06:26:05,320 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 06:26:05,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 06:26:05,321 INFO L85 PathProgramCache]: Analyzing trace with hash 120530131, now seen corresponding path program 1 times [2024-10-24 06:26:05,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 06:26:05,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509033921] [2024-10-24 06:26:05,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 06:26:05,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 06:26:05,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:12,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 06:26:12,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:12,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 06:26:12,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:12,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 06:26:12,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:12,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 06:26:12,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:12,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 06:26:12,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:12,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 06:26:12,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:12,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 06:26:12,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:12,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 06:26:12,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:12,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 06:26:12,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:12,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 06:26:12,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:12,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 06:26:12,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:12,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 06:26:12,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:12,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 06:26:12,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:12,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 06:26:12,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:12,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 06:26:12,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:12,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 06:26:12,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:12,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 06:26:12,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:12,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 06:26:12,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:12,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 06:26:12,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:12,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 06:26:12,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:12,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 06:26:12,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:12,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 06:26:12,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:12,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 06:26:12,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:12,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 06:26:12,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:12,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 06:26:12,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:12,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 06:26:12,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:12,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 06:26:12,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:12,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-24 06:26:12,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:12,784 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-10-24 06:26:12,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 06:26:12,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509033921] [2024-10-24 06:26:12,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509033921] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 06:26:12,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 06:26:12,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-24 06:26:12,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116941366] [2024-10-24 06:26:12,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 06:26:12,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 06:26:12,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 06:26:12,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 06:26:12,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-10-24 06:26:12,790 INFO L87 Difference]: Start difference. First operand 78 states and 121 transitions. Second operand has 14 states, 13 states have (on average 3.076923076923077) internal successors, (40), 14 states have internal predecessors, (40), 4 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2024-10-24 06:26:13,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 06:26:13,757 INFO L93 Difference]: Finished difference Result 251 states and 388 transitions. [2024-10-24 06:26:13,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 06:26:13,757 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.076923076923077) internal successors, (40), 14 states have internal predecessors, (40), 4 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) Word has length 177 [2024-10-24 06:26:13,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 06:26:13,762 INFO L225 Difference]: With dead ends: 251 [2024-10-24 06:26:13,764 INFO L226 Difference]: Without dead ends: 174 [2024-10-24 06:26:13,765 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2024-10-24 06:26:13,766 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 232 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 06:26:13,768 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 760 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 06:26:13,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-10-24 06:26:13,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 139. [2024-10-24 06:26:13,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 80 states have (on average 1.3) internal successors, (104), 80 states have internal predecessors, (104), 56 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-10-24 06:26:13,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 216 transitions. [2024-10-24 06:26:13,807 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 216 transitions. Word has length 177 [2024-10-24 06:26:13,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 06:26:13,808 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 216 transitions. [2024-10-24 06:26:13,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.076923076923077) internal successors, (40), 14 states have internal predecessors, (40), 4 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2024-10-24 06:26:13,810 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 216 transitions. [2024-10-24 06:26:13,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-10-24 06:26:13,814 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 06:26:13,814 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 06:26:13,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 06:26:13,815 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 06:26:13,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 06:26:13,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1504647151, now seen corresponding path program 1 times [2024-10-24 06:26:13,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 06:26:13,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962092140] [2024-10-24 06:26:13,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 06:26:13,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 06:26:13,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:14,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 06:26:14,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:14,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 06:26:14,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:14,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 06:26:14,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:14,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 06:26:14,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:14,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 06:26:14,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:14,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 06:26:14,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:14,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 06:26:14,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:14,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 06:26:14,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:14,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 06:26:14,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:14,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 06:26:14,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:14,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 06:26:14,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:14,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 06:26:14,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:14,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 06:26:14,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:14,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 06:26:14,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:14,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 06:26:14,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:14,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 06:26:14,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:14,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 06:26:14,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:14,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 06:26:14,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:14,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 06:26:14,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:14,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 06:26:14,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:14,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 06:26:14,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:14,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 06:26:14,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:14,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 06:26:14,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:14,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 06:26:14,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:14,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 06:26:14,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:14,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 06:26:14,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:14,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 06:26:14,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:14,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-24 06:26:14,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:14,110 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-10-24 06:26:14,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 06:26:14,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962092140] [2024-10-24 06:26:14,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962092140] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 06:26:14,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 06:26:14,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 06:26:14,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993717136] [2024-10-24 06:26:14,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 06:26:14,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 06:26:14,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 06:26:14,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 06:26:14,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 06:26:14,114 INFO L87 Difference]: Start difference. First operand 139 states and 216 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-24 06:26:14,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 06:26:14,262 INFO L93 Difference]: Finished difference Result 303 states and 472 transitions. [2024-10-24 06:26:14,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 06:26:14,263 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 177 [2024-10-24 06:26:14,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 06:26:14,268 INFO L225 Difference]: With dead ends: 303 [2024-10-24 06:26:14,270 INFO L226 Difference]: Without dead ends: 226 [2024-10-24 06:26:14,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 06:26:14,272 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 135 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 06:26:14,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 470 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 06:26:14,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-10-24 06:26:14,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 142. [2024-10-24 06:26:14,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 83 states have (on average 1.3012048192771084) internal successors, (108), 83 states have internal predecessors, (108), 56 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-10-24 06:26:14,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 220 transitions. [2024-10-24 06:26:14,305 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 220 transitions. Word has length 177 [2024-10-24 06:26:14,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 06:26:14,306 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 220 transitions. [2024-10-24 06:26:14,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-24 06:26:14,307 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 220 transitions. [2024-10-24 06:26:14,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-10-24 06:26:14,312 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 06:26:14,312 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 06:26:14,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 06:26:14,313 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 06:26:14,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 06:26:14,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1111620141, now seen corresponding path program 1 times [2024-10-24 06:26:14,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 06:26:14,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851611181] [2024-10-24 06:26:14,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 06:26:14,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 06:26:14,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:21,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 06:26:21,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:21,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 06:26:21,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:21,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 06:26:21,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:21,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 06:26:21,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:21,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 06:26:21,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:21,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 06:26:21,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:21,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 06:26:21,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:21,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 06:26:21,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:21,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 06:26:21,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:21,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 06:26:21,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:21,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 06:26:21,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:21,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 06:26:21,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:21,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 06:26:21,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:21,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 06:26:21,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:21,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 06:26:21,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:21,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 06:26:21,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:21,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 06:26:21,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:21,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 06:26:21,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:21,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 06:26:21,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:21,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 06:26:21,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:21,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 06:26:21,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:21,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 06:26:21,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:21,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 06:26:21,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:21,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 06:26:21,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:21,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 06:26:21,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:21,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 06:26:21,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:21,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 06:26:21,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:21,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-24 06:26:21,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:21,947 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-10-24 06:26:21,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 06:26:21,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851611181] [2024-10-24 06:26:21,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851611181] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 06:26:21,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 06:26:21,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-24 06:26:21,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117878031] [2024-10-24 06:26:21,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 06:26:21,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-24 06:26:21,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 06:26:21,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-24 06:26:21,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-10-24 06:26:21,950 INFO L87 Difference]: Start difference. First operand 142 states and 220 transitions. Second operand has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 3 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2024-10-24 06:26:24,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 06:26:24,215 INFO L93 Difference]: Finished difference Result 260 states and 397 transitions. [2024-10-24 06:26:24,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 06:26:24,217 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 3 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 177 [2024-10-24 06:26:24,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 06:26:24,219 INFO L225 Difference]: With dead ends: 260 [2024-10-24 06:26:24,220 INFO L226 Difference]: Without dead ends: 180 [2024-10-24 06:26:24,221 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=123, Invalid=477, Unknown=0, NotChecked=0, Total=600 [2024-10-24 06:26:24,222 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 251 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 06:26:24,222 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 730 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 06:26:24,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-10-24 06:26:24,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 152. [2024-10-24 06:26:24,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 93 states have (on average 1.3010752688172043) internal successors, (121), 93 states have internal predecessors, (121), 56 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-10-24 06:26:24,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 233 transitions. [2024-10-24 06:26:24,251 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 233 transitions. Word has length 177 [2024-10-24 06:26:24,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 06:26:24,251 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 233 transitions. [2024-10-24 06:26:24,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 3 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2024-10-24 06:26:24,252 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 233 transitions. [2024-10-24 06:26:24,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-10-24 06:26:24,254 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 06:26:24,254 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 06:26:24,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 06:26:24,255 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 06:26:24,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 06:26:24,255 INFO L85 PathProgramCache]: Analyzing trace with hash -466275883, now seen corresponding path program 1 times [2024-10-24 06:26:24,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 06:26:24,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723180658] [2024-10-24 06:26:24,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 06:26:24,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 06:26:24,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:24,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 06:26:24,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:24,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 06:26:24,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:24,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 06:26:24,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:24,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 06:26:24,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:24,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 06:26:24,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:24,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 06:26:24,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:24,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 06:26:24,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:24,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 06:26:24,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:24,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 06:26:24,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:24,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 06:26:24,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:24,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 06:26:24,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:24,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 06:26:24,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:24,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 06:26:24,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:24,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 06:26:24,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:24,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 06:26:24,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:24,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 06:26:24,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:24,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 06:26:24,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:24,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 06:26:24,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:24,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 06:26:24,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:24,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 06:26:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:24,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 06:26:24,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:24,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 06:26:24,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:24,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 06:26:24,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:24,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 06:26:24,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:24,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 06:26:24,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:24,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 06:26:24,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:24,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 06:26:24,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:24,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-24 06:26:24,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:24,484 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-10-24 06:26:24,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 06:26:24,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723180658] [2024-10-24 06:26:24,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723180658] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 06:26:24,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 06:26:24,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 06:26:24,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592440323] [2024-10-24 06:26:24,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 06:26:24,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 06:26:24,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 06:26:24,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 06:26:24,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 06:26:24,486 INFO L87 Difference]: Start difference. First operand 152 states and 233 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-24 06:26:24,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 06:26:24,632 INFO L93 Difference]: Finished difference Result 229 states and 352 transitions. [2024-10-24 06:26:24,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 06:26:24,637 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 177 [2024-10-24 06:26:24,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 06:26:24,638 INFO L225 Difference]: With dead ends: 229 [2024-10-24 06:26:24,638 INFO L226 Difference]: Without dead ends: 149 [2024-10-24 06:26:24,639 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 06:26:24,639 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 101 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 06:26:24,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 164 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 06:26:24,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-10-24 06:26:24,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2024-10-24 06:26:24,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 90 states have (on average 1.2666666666666666) internal successors, (114), 90 states have internal predecessors, (114), 56 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-10-24 06:26:24,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 226 transitions. [2024-10-24 06:26:24,650 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 226 transitions. Word has length 177 [2024-10-24 06:26:24,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 06:26:24,651 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 226 transitions. [2024-10-24 06:26:24,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-24 06:26:24,651 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 226 transitions. [2024-10-24 06:26:24,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-10-24 06:26:24,652 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 06:26:24,652 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 06:26:24,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 06:26:24,652 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 06:26:24,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 06:26:24,653 INFO L85 PathProgramCache]: Analyzing trace with hash -101417104, now seen corresponding path program 1 times [2024-10-24 06:26:24,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 06:26:24,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992683467] [2024-10-24 06:26:24,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 06:26:24,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 06:26:24,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:32,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 06:26:32,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:32,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 06:26:32,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:32,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 06:26:32,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:32,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 06:26:32,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:32,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 06:26:32,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:32,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 06:26:32,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:32,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 06:26:32,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:32,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 06:26:32,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:32,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 06:26:32,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:32,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 06:26:32,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:32,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 06:26:32,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:32,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 06:26:32,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:32,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 06:26:32,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:32,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 06:26:32,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:32,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 06:26:32,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:32,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 06:26:32,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:32,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 06:26:32,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:32,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 06:26:32,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:32,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 06:26:32,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:32,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 06:26:32,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:32,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 06:26:32,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:32,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 06:26:32,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:32,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 06:26:32,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:32,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 06:26:32,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:32,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 06:26:32,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:32,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 06:26:32,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:32,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 06:26:32,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:32,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-24 06:26:32,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:32,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-10-24 06:26:32,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 06:26:32,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992683467] [2024-10-24 06:26:32,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992683467] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 06:26:32,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 06:26:32,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-24 06:26:32,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247115242] [2024-10-24 06:26:32,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 06:26:32,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-24 06:26:32,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 06:26:32,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-24 06:26:32,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2024-10-24 06:26:32,300 INFO L87 Difference]: Start difference. First operand 149 states and 226 transitions. Second operand has 17 states, 16 states have (on average 2.5625) internal successors, (41), 17 states have internal predecessors, (41), 4 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2024-10-24 06:26:35,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 06:26:35,162 INFO L93 Difference]: Finished difference Result 177 states and 258 transitions. [2024-10-24 06:26:35,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 06:26:35,163 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.5625) internal successors, (41), 17 states have internal predecessors, (41), 4 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) Word has length 178 [2024-10-24 06:26:35,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 06:26:35,165 INFO L225 Difference]: With dead ends: 177 [2024-10-24 06:26:35,165 INFO L226 Difference]: Without dead ends: 175 [2024-10-24 06:26:35,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=151, Invalid=605, Unknown=0, NotChecked=0, Total=756 [2024-10-24 06:26:35,166 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 289 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 1126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 06:26:35,167 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 841 Invalid, 1126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 904 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 06:26:35,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-10-24 06:26:35,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 154. [2024-10-24 06:26:35,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 95 states have (on average 1.2736842105263158) internal successors, (121), 95 states have internal predecessors, (121), 56 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-10-24 06:26:35,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 233 transitions. [2024-10-24 06:26:35,185 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 233 transitions. Word has length 178 [2024-10-24 06:26:35,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 06:26:35,186 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 233 transitions. [2024-10-24 06:26:35,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.5625) internal successors, (41), 17 states have internal predecessors, (41), 4 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2024-10-24 06:26:35,186 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 233 transitions. [2024-10-24 06:26:35,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-10-24 06:26:35,188 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 06:26:35,188 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 06:26:35,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 06:26:35,188 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 06:26:35,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 06:26:35,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1424321859, now seen corresponding path program 1 times [2024-10-24 06:26:35,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 06:26:35,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806556926] [2024-10-24 06:26:35,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 06:26:35,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 06:26:35,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:35,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 06:26:35,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:35,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 06:26:35,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:35,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 06:26:35,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:35,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 06:26:35,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:35,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 06:26:35,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:35,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 06:26:35,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:35,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 06:26:35,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:35,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 06:26:35,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:35,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 06:26:35,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:35,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 06:26:35,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:35,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 06:26:35,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:35,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 06:26:35,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:35,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 06:26:35,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:35,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 06:26:35,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:35,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 06:26:35,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:35,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 06:26:35,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:35,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 06:26:35,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:35,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 06:26:35,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:35,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 06:26:35,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:35,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 06:26:35,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:35,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 06:26:35,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:35,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 06:26:35,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:35,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 06:26:35,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:35,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 06:26:35,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:35,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 06:26:35,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:35,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 06:26:35,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:35,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 06:26:35,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:35,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-24 06:26:35,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:35,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-10-24 06:26:35,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 06:26:35,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806556926] [2024-10-24 06:26:35,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806556926] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 06:26:35,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 06:26:35,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 06:26:35,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749385301] [2024-10-24 06:26:35,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 06:26:35,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 06:26:35,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 06:26:35,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 06:26:35,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 06:26:35,684 INFO L87 Difference]: Start difference. First operand 154 states and 233 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-24 06:26:35,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 06:26:35,759 INFO L93 Difference]: Finished difference Result 251 states and 377 transitions. [2024-10-24 06:26:35,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 06:26:35,759 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 179 [2024-10-24 06:26:35,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 06:26:35,761 INFO L225 Difference]: With dead ends: 251 [2024-10-24 06:26:35,761 INFO L226 Difference]: Without dead ends: 174 [2024-10-24 06:26:35,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 06:26:35,762 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 55 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 06:26:35,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 223 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 06:26:35,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-10-24 06:26:35,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 166. [2024-10-24 06:26:35,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 107 states have (on average 1.2616822429906542) internal successors, (135), 107 states have internal predecessors, (135), 56 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-10-24 06:26:35,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 247 transitions. [2024-10-24 06:26:35,780 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 247 transitions. Word has length 179 [2024-10-24 06:26:35,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 06:26:35,781 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 247 transitions. [2024-10-24 06:26:35,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-24 06:26:35,781 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 247 transitions. [2024-10-24 06:26:35,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-10-24 06:26:35,782 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 06:26:35,782 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 06:26:35,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 06:26:35,783 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 06:26:35,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 06:26:35,783 INFO L85 PathProgramCache]: Analyzing trace with hash -744263489, now seen corresponding path program 1 times [2024-10-24 06:26:35,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 06:26:35,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038485187] [2024-10-24 06:26:35,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 06:26:35,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 06:26:35,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:38,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 06:26:38,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:38,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 06:26:38,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:38,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 06:26:38,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:38,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 06:26:38,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:38,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 06:26:38,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:38,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 06:26:38,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:38,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 06:26:38,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:38,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 06:26:38,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:38,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 06:26:38,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:38,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 06:26:38,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:38,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 06:26:38,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:38,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 06:26:38,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:38,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 06:26:38,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:38,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 06:26:38,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:38,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 06:26:38,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:38,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 06:26:38,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:38,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 06:26:38,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:38,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 06:26:38,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:38,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 06:26:38,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:38,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 06:26:38,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:38,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 06:26:38,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:38,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 06:26:38,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:38,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 06:26:38,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:38,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 06:26:38,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:38,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 06:26:38,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:38,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 06:26:38,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:38,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 06:26:38,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:38,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-24 06:26:38,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:38,713 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-10-24 06:26:38,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 06:26:38,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038485187] [2024-10-24 06:26:38,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038485187] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 06:26:38,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 06:26:38,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-24 06:26:38,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431422339] [2024-10-24 06:26:38,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 06:26:38,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-24 06:26:38,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 06:26:38,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-24 06:26:38,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-10-24 06:26:38,716 INFO L87 Difference]: Start difference. First operand 166 states and 247 transitions. Second operand has 15 states, 14 states have (on average 3.0) internal successors, (42), 15 states have internal predecessors, (42), 4 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2024-10-24 06:26:39,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 06:26:39,925 INFO L93 Difference]: Finished difference Result 180 states and 262 transitions. [2024-10-24 06:26:39,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 06:26:39,926 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.0) internal successors, (42), 15 states have internal predecessors, (42), 4 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) Word has length 179 [2024-10-24 06:26:39,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 06:26:39,927 INFO L225 Difference]: With dead ends: 180 [2024-10-24 06:26:39,927 INFO L226 Difference]: Without dead ends: 178 [2024-10-24 06:26:39,927 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=134, Invalid=418, Unknown=0, NotChecked=0, Total=552 [2024-10-24 06:26:39,928 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 236 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 06:26:39,928 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 670 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 06:26:39,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2024-10-24 06:26:39,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 162. [2024-10-24 06:26:39,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 103 states have (on average 1.2621359223300972) internal successors, (130), 103 states have internal predecessors, (130), 56 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-10-24 06:26:39,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 242 transitions. [2024-10-24 06:26:39,938 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 242 transitions. Word has length 179 [2024-10-24 06:26:39,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 06:26:39,938 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 242 transitions. [2024-10-24 06:26:39,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.0) internal successors, (42), 15 states have internal predecessors, (42), 4 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2024-10-24 06:26:39,939 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 242 transitions. [2024-10-24 06:26:39,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2024-10-24 06:26:39,941 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 06:26:39,942 INFO L215 NwaCegarLoop]: trace histogram [56, 56, 56, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 06:26:39,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 06:26:39,942 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 06:26:39,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 06:26:39,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1377431510, now seen corresponding path program 1 times [2024-10-24 06:26:39,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 06:26:39,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104161218] [2024-10-24 06:26:39,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 06:26:39,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 06:26:40,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 06:26:46,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 06:26:46,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 06:26:46,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 06:26:46,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 06:26:46,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 06:26:46,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 06:26:46,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 06:26:46,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 06:26:46,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 06:26:46,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 06:26:46,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 06:26:46,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 06:26:46,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 06:26:46,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 06:26:46,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 06:26:46,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 06:26:46,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 06:26:46,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 06:26:46,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 06:26:46,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 06:26:46,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 06:26:46,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 06:26:46,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 06:26:46,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 06:26:46,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 06:26:46,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 06:26:46,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-24 06:26:46,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-10-24 06:26:46,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-24 06:26:46,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-10-24 06:26:46,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-10-24 06:26:46,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-10-24 06:26:46,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-10-24 06:26:46,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-10-24 06:26:46,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-10-24 06:26:46,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-10-24 06:26:46,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-10-24 06:26:46,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-10-24 06:26:46,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-10-24 06:26:46,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-10-24 06:26:46,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-10-24 06:26:46,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2024-10-24 06:26:46,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-10-24 06:26:46,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2024-10-24 06:26:46,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2024-10-24 06:26:46,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2024-10-24 06:26:46,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-24 06:26:46,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2024-10-24 06:26:46,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2024-10-24 06:26:46,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2024-10-24 06:26:46,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2024-10-24 06:26:46,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2024-10-24 06:26:46,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2024-10-24 06:26:46,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2024-10-24 06:26:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2024-10-24 06:26:46,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,342 INFO L134 CoverageAnalysis]: Checked inductivity of 6222 backedges. 1 proven. 61 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2024-10-24 06:26:46,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 06:26:46,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104161218] [2024-10-24 06:26:46,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104161218] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 06:26:46,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546362232] [2024-10-24 06:26:46,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 06:26:46,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 06:26:46,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 06:26:46,346 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 06:26:46,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 06:26:46,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:46,517 INFO L255 TraceCheckSpWp]: Trace formula consists of 789 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 06:26:46,535 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 06:26:46,630 INFO L134 CoverageAnalysis]: Checked inductivity of 6222 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6213 trivial. 0 not checked. [2024-10-24 06:26:46,631 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 06:26:46,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [546362232] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 06:26:46,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 06:26:46,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14 [2024-10-24 06:26:46,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840035195] [2024-10-24 06:26:46,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 06:26:46,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 06:26:46,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 06:26:46,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 06:26:46,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-10-24 06:26:46,634 INFO L87 Difference]: Start difference. First operand 162 states and 242 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-24 06:26:46,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 06:26:46,673 INFO L93 Difference]: Finished difference Result 243 states and 364 transitions. [2024-10-24 06:26:46,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 06:26:46,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 353 [2024-10-24 06:26:46,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 06:26:46,683 INFO L225 Difference]: With dead ends: 243 [2024-10-24 06:26:46,683 INFO L226 Difference]: Without dead ends: 158 [2024-10-24 06:26:46,684 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 470 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-10-24 06:26:46,685 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 0 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 06:26:46,685 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 221 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 06:26:46,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-10-24 06:26:46,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2024-10-24 06:26:46,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 99 states have (on average 1.2424242424242424) internal successors, (123), 99 states have internal predecessors, (123), 56 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-10-24 06:26:46,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 235 transitions. [2024-10-24 06:26:46,712 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 235 transitions. Word has length 353 [2024-10-24 06:26:46,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 06:26:46,713 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 235 transitions. [2024-10-24 06:26:46,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-24 06:26:46,714 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 235 transitions. [2024-10-24 06:26:46,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2024-10-24 06:26:46,719 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 06:26:46,719 INFO L215 NwaCegarLoop]: trace histogram [56, 56, 56, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-10-24 06:26:46,740 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 06:26:46,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 06:26:46,924 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 06:26:46,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 06:26:46,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1685385514, now seen corresponding path program 1 times [2024-10-24 06:26:46,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 06:26:46,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854860059] [2024-10-24 06:26:46,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 06:26:46,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 06:26:47,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 06:26:52,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 06:26:52,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 06:26:52,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 06:26:52,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 06:26:52,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 06:26:52,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 06:26:52,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 06:26:52,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 06:26:52,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 06:26:52,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 06:26:52,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 06:26:52,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 06:26:52,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 06:26:52,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 06:26:52,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 06:26:52,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 06:26:52,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 06:26:52,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 06:26:52,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 06:26:52,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 06:26:52,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 06:26:52,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 06:26:52,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 06:26:52,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 06:26:52,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 06:26:52,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 06:26:52,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-24 06:26:52,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-10-24 06:26:52,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-24 06:26:52,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-10-24 06:26:52,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-10-24 06:26:52,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-10-24 06:26:52,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-10-24 06:26:52,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-10-24 06:26:52,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-10-24 06:26:52,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-10-24 06:26:52,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-10-24 06:26:52,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-10-24 06:26:52,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-10-24 06:26:52,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-10-24 06:26:52,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-10-24 06:26:52,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2024-10-24 06:26:52,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-10-24 06:26:52,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2024-10-24 06:26:52,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2024-10-24 06:26:52,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2024-10-24 06:26:52,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-24 06:26:52,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2024-10-24 06:26:52,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2024-10-24 06:26:52,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2024-10-24 06:26:52,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2024-10-24 06:26:52,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2024-10-24 06:26:52,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2024-10-24 06:26:52,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2024-10-24 06:26:52,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2024-10-24 06:26:52,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:52,844 INFO L134 CoverageAnalysis]: Checked inductivity of 6223 backedges. 1 proven. 62 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2024-10-24 06:26:52,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 06:26:52,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854860059] [2024-10-24 06:26:52,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854860059] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 06:26:52,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132904267] [2024-10-24 06:26:52,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 06:26:52,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 06:26:52,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 06:26:52,846 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 06:26:52,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 06:26:53,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:26:53,031 INFO L255 TraceCheckSpWp]: Trace formula consists of 789 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-10-24 06:26:53,041 INFO L278 TraceCheckSpWp]: Computing forward predicates...