./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_fillercodestructure_filler-pr-co_file-31.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_fillercodestructure_filler-pr-co_file-31.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 8a2631f953a342b9ccba2223861eaca9a227bd30acbeeb97e8e7f1036b541190 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 07:48:36,247 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 07:48:36,322 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 07:48:36,327 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 07:48:36,328 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 07:48:36,360 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 07:48:36,360 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 07:48:36,361 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 07:48:36,362 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 07:48:36,365 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 07:48:36,365 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 07:48:36,366 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 07:48:36,366 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 07:48:36,367 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 07:48:36,367 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 07:48:36,367 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 07:48:36,368 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 07:48:36,368 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 07:48:36,368 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 07:48:36,368 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 07:48:36,369 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 07:48:36,370 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 07:48:36,370 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 07:48:36,371 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 07:48:36,371 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 07:48:36,371 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 07:48:36,371 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 07:48:36,372 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 07:48:36,372 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 07:48:36,372 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 07:48:36,373 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 07:48:36,373 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 07:48:36,373 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 07:48:36,373 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 07:48:36,374 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 07:48:36,374 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 07:48:36,374 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 07:48:36,375 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 07:48:36,376 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 07:48:36,376 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 07:48:36,376 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 07:48:36,377 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 07:48:36,377 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a2631f953a342b9ccba2223861eaca9a227bd30acbeeb97e8e7f1036b541190 [2024-10-24 07:48:36,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 07:48:36,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 07:48:36,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 07:48:36,682 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 07:48:36,682 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 07:48:36,683 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-31.i [2024-10-24 07:48:38,136 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 07:48:38,363 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 07:48:38,364 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-31.i [2024-10-24 07:48:38,378 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86873ebab/bf71fd97c65b45e383d848f838ac6873/FLAGaa2e75855 [2024-10-24 07:48:38,715 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86873ebab/bf71fd97c65b45e383d848f838ac6873 [2024-10-24 07:48:38,718 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 07:48:38,719 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 07:48:38,722 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 07:48:38,723 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 07:48:38,728 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 07:48:38,729 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:48:38" (1/1) ... [2024-10-24 07:48:38,730 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7377a1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:48:38, skipping insertion in model container [2024-10-24 07:48:38,730 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:48:38" (1/1) ... [2024-10-24 07:48:38,763 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 07:48:38,931 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_fillercodestructure_filler-pr-co_file-31.i[919,932] [2024-10-24 07:48:39,040 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 07:48:39,052 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 07:48:39,067 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_fillercodestructure_filler-pr-co_file-31.i[919,932] [2024-10-24 07:48:39,132 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 07:48:39,166 INFO L204 MainTranslator]: Completed translation [2024-10-24 07:48:39,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:48:39 WrapperNode [2024-10-24 07:48:39,167 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 07:48:39,168 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 07:48:39,168 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 07:48:39,168 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 07:48:39,176 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:48:39" (1/1) ... [2024-10-24 07:48:39,190 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:48:39" (1/1) ... [2024-10-24 07:48:39,260 INFO L138 Inliner]: procedures = 26, calls = 61, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 266 [2024-10-24 07:48:39,260 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 07:48:39,261 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 07:48:39,261 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 07:48:39,261 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 07:48:39,279 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:48:39" (1/1) ... [2024-10-24 07:48:39,282 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:48:39" (1/1) ... [2024-10-24 07:48:39,287 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:48:39" (1/1) ... [2024-10-24 07:48:39,336 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 07:48:39,337 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:48:39" (1/1) ... [2024-10-24 07:48:39,337 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:48:39" (1/1) ... [2024-10-24 07:48:39,354 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:48:39" (1/1) ... [2024-10-24 07:48:39,358 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:48:39" (1/1) ... [2024-10-24 07:48:39,364 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:48:39" (1/1) ... [2024-10-24 07:48:39,367 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:48:39" (1/1) ... [2024-10-24 07:48:39,371 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 07:48:39,373 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 07:48:39,373 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 07:48:39,373 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 07:48:39,374 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:48:39" (1/1) ... [2024-10-24 07:48:39,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 07:48:39,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 07:48:39,410 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 07:48:39,417 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 07:48:39,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 07:48:39,463 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 07:48:39,464 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 07:48:39,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 07:48:39,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 07:48:39,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 07:48:39,568 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 07:48:39,570 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 07:48:40,050 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-10-24 07:48:40,051 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 07:48:40,093 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 07:48:40,093 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 07:48:40,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:48:40 BoogieIcfgContainer [2024-10-24 07:48:40,094 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 07:48:40,096 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 07:48:40,097 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 07:48:40,100 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 07:48:40,101 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:48:38" (1/3) ... [2024-10-24 07:48:40,101 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@204e02d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:48:40, skipping insertion in model container [2024-10-24 07:48:40,102 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:48:39" (2/3) ... [2024-10-24 07:48:40,102 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@204e02d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:48:40, skipping insertion in model container [2024-10-24 07:48:40,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:48:40" (3/3) ... [2024-10-24 07:48:40,104 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-co_file-31.i [2024-10-24 07:48:40,120 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 07:48:40,121 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 07:48:40,192 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 07:48:40,198 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;@68a7775a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 07:48:40,199 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 07:48:40,204 INFO L276 IsEmpty]: Start isEmpty. Operand has 114 states, 63 states have (on average 1.4285714285714286) internal successors, (90), 64 states have internal predecessors, (90), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-10-24 07:48:40,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2024-10-24 07:48:40,229 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:48:40,230 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:48:40,230 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:48:40,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:48:40,236 INFO L85 PathProgramCache]: Analyzing trace with hash 657151776, now seen corresponding path program 1 times [2024-10-24 07:48:40,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:48:40,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907794853] [2024-10-24 07:48:40,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:48:40,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:48:40,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:48:40,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:48:40,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 07:48:40,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:48:40,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 07:48:40,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:48:40,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 07:48:40,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:48:40,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 07:48:40,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:48:40,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 07:48:40,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:48:40,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 07:48:40,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:48:40,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:48:40,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 07:48:40,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 07:48:40,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 07:48:40,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 07:48:40,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 07:48:40,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 07:48:40,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 07:48:40,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 07:48:40,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 07:48:40,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 07:48:40,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 07:48:40,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-24 07:48:40,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-24 07:48:40,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-24 07:48:40,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-10-24 07:48:40,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 07:48:40,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-10-24 07:48:40,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-24 07:48:40,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-10-24 07:48:40,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-10-24 07:48:40,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-10-24 07:48:40,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-10-24 07:48:40,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-10-24 07:48:40,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-10-24 07:48:40,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-10-24 07:48:40,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-10-24 07:48:40,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2024-10-24 07:48:40,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-10-24 07:48:40,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-10-24 07:48:40,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2024-10-24 07:48:40,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2024-10-24 07:48:40,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2024-10-24 07:48:40,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2024-10-24 07:48:40,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:40,906 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-10-24 07:48:40,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:48:40,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907794853] [2024-10-24 07:48:40,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907794853] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:48:40,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:48:40,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 07:48:40,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083345385] [2024-10-24 07:48:40,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:48:40,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 07:48:40,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:48:40,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 07:48:40,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 07:48:40,950 INFO L87 Difference]: Start difference. First operand has 114 states, 63 states have (on average 1.4285714285714286) internal successors, (90), 64 states have internal predecessors, (90), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) [2024-10-24 07:48:41,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:48:41,018 INFO L93 Difference]: Finished difference Result 225 states and 418 transitions. [2024-10-24 07:48:41,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 07:48:41,022 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) Word has length 286 [2024-10-24 07:48:41,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:48:41,033 INFO L225 Difference]: With dead ends: 225 [2024-10-24 07:48:41,033 INFO L226 Difference]: Without dead ends: 112 [2024-10-24 07:48:41,038 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 146 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 07:48:41,045 INFO L432 NwaCegarLoop]: 178 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, 178 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 07:48:41,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 178 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 07:48:41,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-10-24 07:48:41,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2024-10-24 07:48:41,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 62 states have (on average 1.3709677419354838) internal successors, (85), 62 states have internal predecessors, (85), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-10-24 07:48:41,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 181 transitions. [2024-10-24 07:48:41,121 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 181 transitions. Word has length 286 [2024-10-24 07:48:41,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:48:41,123 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 181 transitions. [2024-10-24 07:48:41,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) [2024-10-24 07:48:41,125 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 181 transitions. [2024-10-24 07:48:41,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2024-10-24 07:48:41,135 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:48:41,136 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:48:41,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 07:48:41,136 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:48:41,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:48:41,137 INFO L85 PathProgramCache]: Analyzing trace with hash 290520352, now seen corresponding path program 1 times [2024-10-24 07:48:41,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:48:41,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862984387] [2024-10-24 07:48:41,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:48:41,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:48:41,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:48:41,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:48:41,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 07:48:41,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:48:41,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 07:48:41,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:48:41,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 07:48:41,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:48:41,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 07:48:41,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:48:41,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 07:48:41,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:48:41,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 07:48:41,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:48:41,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:48:41,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 07:48:41,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 07:48:41,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 07:48:41,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 07:48:41,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 07:48:41,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 07:48:41,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 07:48:41,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 07:48:41,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 07:48:41,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 07:48:41,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 07:48:41,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-24 07:48:41,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-24 07:48:41,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-24 07:48:41,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-10-24 07:48:41,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 07:48:41,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-10-24 07:48:41,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-24 07:48:41,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-10-24 07:48:41,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-10-24 07:48:41,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-10-24 07:48:41,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-10-24 07:48:41,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-10-24 07:48:41,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-10-24 07:48:41,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-10-24 07:48:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-10-24 07:48:41,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2024-10-24 07:48:41,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-10-24 07:48:41,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-10-24 07:48:41,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2024-10-24 07:48:41,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2024-10-24 07:48:41,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2024-10-24 07:48:41,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2024-10-24 07:48:41,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:41,508 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-10-24 07:48:41,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:48:41,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862984387] [2024-10-24 07:48:41,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862984387] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:48:41,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:48:41,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 07:48:41,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147155078] [2024-10-24 07:48:41,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:48:41,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 07:48:41,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:48:41,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 07:48:41,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 07:48:41,513 INFO L87 Difference]: Start difference. First operand 112 states and 181 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-10-24 07:48:41,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:48:41,604 INFO L93 Difference]: Finished difference Result 333 states and 539 transitions. [2024-10-24 07:48:41,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 07:48:41,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 286 [2024-10-24 07:48:41,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:48:41,611 INFO L225 Difference]: With dead ends: 333 [2024-10-24 07:48:41,613 INFO L226 Difference]: Without dead ends: 222 [2024-10-24 07:48:41,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 07:48:41,618 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 167 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 07:48:41,618 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 495 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 07:48:41,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-10-24 07:48:41,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 125. [2024-10-24 07:48:41,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 75 states have (on average 1.4266666666666667) internal successors, (107), 75 states have internal predecessors, (107), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-10-24 07:48:41,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 203 transitions. [2024-10-24 07:48:41,643 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 203 transitions. Word has length 286 [2024-10-24 07:48:41,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:48:41,648 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 203 transitions. [2024-10-24 07:48:41,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-10-24 07:48:41,649 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 203 transitions. [2024-10-24 07:48:41,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2024-10-24 07:48:41,653 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:48:41,653 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:48:41,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 07:48:41,654 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:48:41,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:48:41,655 INFO L85 PathProgramCache]: Analyzing trace with hash -296285662, now seen corresponding path program 1 times [2024-10-24 07:48:41,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:48:41,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517755541] [2024-10-24 07:48:41,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:48:41,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:48:41,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:48:42,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:48:42,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 07:48:42,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:48:42,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 07:48:42,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:48:42,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 07:48:42,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:48:42,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 07:48:42,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:48:42,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 07:48:42,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:48:42,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 07:48:42,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:48:42,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:48:42,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 07:48:42,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 07:48:42,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 07:48:42,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 07:48:42,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 07:48:42,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 07:48:42,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 07:48:42,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 07:48:42,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 07:48:42,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 07:48:42,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 07:48:42,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-24 07:48:42,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-24 07:48:42,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-24 07:48:42,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-10-24 07:48:42,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 07:48:42,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-10-24 07:48:42,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-24 07:48:42,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-10-24 07:48:42,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-10-24 07:48:42,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-10-24 07:48:42,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-10-24 07:48:42,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-10-24 07:48:42,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-10-24 07:48:42,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-10-24 07:48:42,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-10-24 07:48:42,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2024-10-24 07:48:42,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-10-24 07:48:42,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-10-24 07:48:42,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2024-10-24 07:48:42,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2024-10-24 07:48:42,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2024-10-24 07:48:42,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2024-10-24 07:48:42,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:48:42,441 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-10-24 07:48:42,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:48:42,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517755541] [2024-10-24 07:48:42,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517755541] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:48:42,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:48:42,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 07:48:42,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074767568] [2024-10-24 07:48:42,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:48:42,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 07:48:42,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:48:42,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 07:48:42,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 07:48:42,449 INFO L87 Difference]: Start difference. First operand 125 states and 203 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-10-24 07:48:42,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:48:42,724 INFO L93 Difference]: Finished difference Result 338 states and 549 transitions. [2024-10-24 07:48:42,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 07:48:42,725 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 286 [2024-10-24 07:48:42,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:48:42,728 INFO L225 Difference]: With dead ends: 338 [2024-10-24 07:48:42,729 INFO L226 Difference]: Without dead ends: 214 [2024-10-24 07:48:42,730 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 97 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 07:48:42,732 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 63 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 07:48:42,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 412 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 07:48:42,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-10-24 07:48:42,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 209. [2024-10-24 07:48:42,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 110 states have (on average 1.3181818181818181) internal successors, (145), 110 states have internal predecessors, (145), 96 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-10-24 07:48:42,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 337 transitions. [2024-10-24 07:48:42,780 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 337 transitions. Word has length 286 [2024-10-24 07:48:42,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:48:42,784 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 337 transitions. [2024-10-24 07:48:42,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-10-24 07:48:42,784 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 337 transitions. [2024-10-24 07:48:42,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2024-10-24 07:48:42,788 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:48:42,788 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:48:42,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 07:48:42,789 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:48:42,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:48:42,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1317354016, now seen corresponding path program 1 times [2024-10-24 07:48:42,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:48:42,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925614580] [2024-10-24 07:48:42,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:48:42,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:48:42,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat