./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-10.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-10.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 73a02241f62dd5f03e40960bce3ebc0277b0698412736895e26f9644edb13c8b --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 21:49:53,872 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 21:49:53,950 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 21:49:53,956 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 21:49:53,958 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 21:49:53,987 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 21:49:53,988 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 21:49:53,988 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 21:49:53,989 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 21:49:53,990 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 21:49:53,990 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 21:49:53,991 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 21:49:53,991 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 21:49:53,993 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 21:49:53,994 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 21:49:53,994 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 21:49:53,994 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 21:49:53,995 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 21:49:53,995 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 21:49:53,995 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 21:49:53,996 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 21:49:54,000 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 21:49:54,000 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 21:49:54,000 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 21:49:54,001 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 21:49:54,001 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 21:49:54,001 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 21:49:54,001 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 21:49:54,002 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 21:49:54,002 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 21:49:54,002 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 21:49:54,002 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 21:49:54,003 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 21:49:54,003 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 21:49:54,003 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 21:49:54,010 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 21:49:54,011 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 21:49:54,011 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 21:49:54,011 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 21:49:54,012 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 21:49:54,012 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 21:49:54,012 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 21:49:54,012 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73a02241f62dd5f03e40960bce3ebc0277b0698412736895e26f9644edb13c8b [2024-11-08 21:49:54,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 21:49:54,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 21:49:54,298 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 21:49:54,299 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 21:49:54,300 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 21:49:54,302 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-10.i [2024-11-08 21:49:55,707 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 21:49:55,908 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 21:49:55,909 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-10.i [2024-11-08 21:49:55,922 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e09e7b2a/491c2b58f29f4b37a4c3f273c2564409/FLAGb7aedce69 [2024-11-08 21:49:55,936 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e09e7b2a/491c2b58f29f4b37a4c3f273c2564409 [2024-11-08 21:49:55,938 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 21:49:55,940 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 21:49:55,941 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 21:49:55,941 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 21:49:55,946 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 21:49:55,947 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 09:49:55" (1/1) ... [2024-11-08 21:49:55,948 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bb35600 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:49:55, skipping insertion in model container [2024-11-08 21:49:55,948 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 09:49:55" (1/1) ... [2024-11-08 21:49:55,976 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 21:49:56,139 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-10.i[919,932] [2024-11-08 21:49:56,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 21:49:56,233 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 21:49:56,244 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-10.i[919,932] [2024-11-08 21:49:56,294 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 21:49:56,323 INFO L204 MainTranslator]: Completed translation [2024-11-08 21:49:56,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:49:56 WrapperNode [2024-11-08 21:49:56,327 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 21:49:56,328 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 21:49:56,328 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 21:49:56,329 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 21:49:56,336 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:49:56" (1/1) ... [2024-11-08 21:49:56,360 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:49:56" (1/1) ... [2024-11-08 21:49:56,408 INFO L138 Inliner]: procedures = 26, calls = 61, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 337 [2024-11-08 21:49:56,409 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 21:49:56,410 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 21:49:56,410 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 21:49:56,410 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 21:49:56,420 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:49:56" (1/1) ... [2024-11-08 21:49:56,421 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:49:56" (1/1) ... [2024-11-08 21:49:56,426 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:49:56" (1/1) ... [2024-11-08 21:49:56,462 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 21:49:56,463 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:49:56" (1/1) ... [2024-11-08 21:49:56,463 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:49:56" (1/1) ... [2024-11-08 21:49:56,485 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:49:56" (1/1) ... [2024-11-08 21:49:56,491 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:49:56" (1/1) ... [2024-11-08 21:49:56,500 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:49:56" (1/1) ... [2024-11-08 21:49:56,507 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:49:56" (1/1) ... [2024-11-08 21:49:56,526 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 21:49:56,527 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 21:49:56,528 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 21:49:56,528 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 21:49:56,529 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:49:56" (1/1) ... [2024-11-08 21:49:56,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 21:49:56,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 21:49:56,562 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 21:49:56,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 21:49:56,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 21:49:56,617 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 21:49:56,618 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 21:49:56,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 21:49:56,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 21:49:56,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 21:49:56,741 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 21:49:56,744 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 21:49:57,289 INFO L? ?]: Removed 34 outVars from TransFormulas that were not future-live. [2024-11-08 21:49:57,290 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 21:49:57,310 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 21:49:57,311 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 21:49:57,312 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 09:49:57 BoogieIcfgContainer [2024-11-08 21:49:57,312 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 21:49:57,315 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 21:49:57,315 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 21:49:57,318 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 21:49:57,319 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 09:49:55" (1/3) ... [2024-11-08 21:49:57,320 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47e3fe52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 09:49:57, skipping insertion in model container [2024-11-08 21:49:57,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:49:56" (2/3) ... [2024-11-08 21:49:57,320 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47e3fe52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 09:49:57, skipping insertion in model container [2024-11-08 21:49:57,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 09:49:57" (3/3) ... [2024-11-08 21:49:57,322 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-cn_file-10.i [2024-11-08 21:49:57,341 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 21:49:57,341 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 21:49:57,464 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 21:49:57,471 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;@24dd92b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 21:49:57,471 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 21:49:57,477 INFO L276 IsEmpty]: Start isEmpty. Operand has 146 states, 95 states have (on average 1.4210526315789473) internal successors, (135), 96 states have internal predecessors, (135), 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) [2024-11-08 21:49:57,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2024-11-08 21:49:57,496 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:49:57,497 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 21:49:57,498 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:49:57,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:49:57,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1831169122, now seen corresponding path program 1 times [2024-11-08 21:49:57,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:49:57,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873415398] [2024-11-08 21:49:57,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:49:57,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:49:57,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 21:49:58,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 21:49:58,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 21:49:58,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 21:49:58,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 21:49:58,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 21:49:58,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 21:49:58,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 21:49:58,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 21:49:58,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 21:49:58,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 21:49:58,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 21:49:58,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 21:49:58,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 21:49:58,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 21:49:58,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 21:49:58,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 21:49:58,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 21:49:58,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 21:49:58,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 21:49:58,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 21:49:58,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-08 21:49:58,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-08 21:49:58,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-08 21:49:58,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-08 21:49:58,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-08 21:49:58,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-08 21:49:58,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 21:49:58,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-08 21:49:58,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-08 21:49:58,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-08 21:49:58,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-08 21:49:58,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-11-08 21:49:58,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-11-08 21:49:58,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-11-08 21:49:58,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-08 21:49:58,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-11-08 21:49:58,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-11-08 21:49:58,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-11-08 21:49:58,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-11-08 21:49:58,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-11-08 21:49:58,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-11-08 21:49:58,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-11-08 21:49:58,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:58,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-11-08 21:49:59,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:59,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-11-08 21:49:59,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:59,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-11-08 21:49:59,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:59,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-11-08 21:49:59,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:59,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-11-08 21:49:59,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:49:59,039 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-11-08 21:49:59,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 21:49:59,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873415398] [2024-11-08 21:49:59,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873415398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 21:49:59,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 21:49:59,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 21:49:59,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946997922] [2024-11-08 21:49:59,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 21:49:59,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 21:49:59,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 21:49:59,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 21:49:59,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 21:49:59,083 INFO L87 Difference]: Start difference. First operand has 146 states, 95 states have (on average 1.4210526315789473) internal successors, (135), 96 states have internal predecessors, (135), 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 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2024-11-08 21:49:59,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 21:49:59,480 INFO L93 Difference]: Finished difference Result 425 states and 780 transitions. [2024-11-08 21:49:59,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 21:49:59,486 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 294 [2024-11-08 21:49:59,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 21:49:59,504 INFO L225 Difference]: With dead ends: 425 [2024-11-08 21:49:59,505 INFO L226 Difference]: Without dead ends: 282 [2024-11-08 21:49:59,516 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 21:49:59,521 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 134 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 21:49:59,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 649 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 21:49:59,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-11-08 21:49:59,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 223. [2024-11-08 21:49:59,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 124 states have (on average 1.2903225806451613) internal successors, (160), 124 states have internal predecessors, (160), 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) [2024-11-08 21:49:59,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 352 transitions. [2024-11-08 21:49:59,648 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 352 transitions. Word has length 294 [2024-11-08 21:49:59,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 21:49:59,652 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 352 transitions. [2024-11-08 21:49:59,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2024-11-08 21:49:59,653 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 352 transitions. [2024-11-08 21:49:59,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-11-08 21:49:59,662 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:49:59,662 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 21:49:59,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 21:49:59,663 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:49:59,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:49:59,664 INFO L85 PathProgramCache]: Analyzing trace with hash -392097594, now seen corresponding path program 1 times [2024-11-08 21:49:59,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:49:59,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877261196] [2024-11-08 21:49:59,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:49:59,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:49:59,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:21,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 21:50:21,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:21,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 21:50:21,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:21,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 21:50:21,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:21,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 21:50:21,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:21,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 21:50:21,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:21,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 21:50:21,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:21,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 21:50:21,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:21,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 21:50:21,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:21,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 21:50:21,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:21,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 21:50:21,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:21,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 21:50:21,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:21,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 21:50:21,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:21,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 21:50:21,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:21,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 21:50:21,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:21,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 21:50:21,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:21,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 21:50:21,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:21,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 21:50:21,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:21,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 21:50:21,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:21,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 21:50:21,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:21,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 21:50:21,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:21,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 21:50:21,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:21,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-08 21:50:21,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:21,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-08 21:50:21,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:21,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-08 21:50:21,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:21,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-08 21:50:21,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:21,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-08 21:50:21,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:21,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-08 21:50:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:21,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 21:50:21,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:21,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-08 21:50:21,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:21,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-08 21:50:21,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:21,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-08 21:50:21,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:21,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-08 21:50:21,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:21,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-11-08 21:50:21,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:21,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-11-08 21:50:21,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:21,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-11-08 21:50:21,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:21,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-08 21:50:21,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:22,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-11-08 21:50:22,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:22,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-11-08 21:50:22,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:22,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-11-08 21:50:22,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:22,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-11-08 21:50:22,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:22,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-11-08 21:50:22,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:22,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-11-08 21:50:22,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:22,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-11-08 21:50:22,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:22,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-11-08 21:50:22,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:22,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-11-08 21:50:22,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:22,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-11-08 21:50:22,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:22,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-11-08 21:50:22,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:22,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-11-08 21:50:22,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:50:22,095 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-11-08 21:50:22,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 21:50:22,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877261196] [2024-11-08 21:50:22,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877261196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 21:50:22,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 21:50:22,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-08 21:50:22,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227841695] [2024-11-08 21:50:22,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 21:50:22,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-08 21:50:22,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 21:50:22,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-08 21:50:22,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-11-08 21:50:22,101 INFO L87 Difference]: Start difference. First operand 223 states and 352 transitions. Second operand has 16 states, 16 states have (on average 3.625) internal successors, (58), 16 states have internal predecessors, (58), 3 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2024-11-08 21:50:25,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 21:50:25,917 INFO L93 Difference]: Finished difference Result 692 states and 1062 transitions. [2024-11-08 21:50:25,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 21:50:25,918 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.625) internal successors, (58), 16 states have internal predecessors, (58), 3 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) Word has length 295 [2024-11-08 21:50:25,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 21:50:25,924 INFO L225 Difference]: With dead ends: 692 [2024-11-08 21:50:25,924 INFO L226 Difference]: Without dead ends: 553 [2024-11-08 21:50:25,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=211, Invalid=659, Unknown=0, NotChecked=0, Total=870 [2024-11-08 21:50:25,927 INFO L432 NwaCegarLoop]: 253 mSDtfsCounter, 1474 mSDsluCounter, 1511 mSDsCounter, 0 mSdLazyCounter, 1612 mSolverCounterSat, 256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1474 SdHoareTripleChecker+Valid, 1764 SdHoareTripleChecker+Invalid, 1868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 256 IncrementalHoareTripleChecker+Valid, 1612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-08 21:50:25,928 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1474 Valid, 1764 Invalid, 1868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [256 Valid, 1612 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-08 21:50:25,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-08 21:50:25,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 420. [2024-11-08 21:50:25,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 267 states have (on average 1.352059925093633) internal successors, (361), 268 states have internal predecessors, (361), 144 states have call successors, (144), 8 states have call predecessors, (144), 8 states have return successors, (144), 143 states have call predecessors, (144), 144 states have call successors, (144) [2024-11-08 21:50:25,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 649 transitions. [2024-11-08 21:50:25,989 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 649 transitions. Word has length 295 [2024-11-08 21:50:25,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 21:50:25,991 INFO L471 AbstractCegarLoop]: Abstraction has 420 states and 649 transitions. [2024-11-08 21:50:25,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.625) internal successors, (58), 16 states have internal predecessors, (58), 3 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2024-11-08 21:50:25,991 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 649 transitions. [2024-11-08 21:50:25,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-11-08 21:50:25,995 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:50:25,996 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 21:50:25,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 21:50:25,997 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:50:25,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:50:25,997 INFO L85 PathProgramCache]: Analyzing trace with hash 287960776, now seen corresponding path program 1 times [2024-11-08 21:50:25,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:50:25,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425709524] [2024-11-08 21:50:25,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:50:25,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:50:26,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 21:51:17,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 21:51:17,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 21:51:17,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 21:51:17,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 21:51:17,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 21:51:17,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 21:51:17,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 21:51:17,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 21:51:17,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 21:51:17,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 21:51:17,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 21:51:17,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 21:51:17,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 21:51:17,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 21:51:17,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 21:51:17,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 21:51:17,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 21:51:17,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 21:51:17,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 21:51:17,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 21:51:17,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-08 21:51:17,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-08 21:51:17,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-08 21:51:17,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-08 21:51:17,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-08 21:51:17,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-08 21:51:17,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 21:51:17,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-08 21:51:17,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-08 21:51:17,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-08 21:51:17,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-08 21:51:17,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-11-08 21:51:17,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-11-08 21:51:17,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-11-08 21:51:17,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-08 21:51:17,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-11-08 21:51:17,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-11-08 21:51:17,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-11-08 21:51:17,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-11-08 21:51:17,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-11-08 21:51:17,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-11-08 21:51:17,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-11-08 21:51:17,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-11-08 21:51:17,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-11-08 21:51:17,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-11-08 21:51:17,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-11-08 21:51:17,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:17,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-11-08 21:51:17,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:51:18,000 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-11-08 21:51:18,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 21:51:18,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425709524] [2024-11-08 21:51:18,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425709524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 21:51:18,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 21:51:18,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-08 21:51:18,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419505120] [2024-11-08 21:51:18,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 21:51:18,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 21:51:18,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 21:51:18,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 21:51:18,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-08 21:51:18,008 INFO L87 Difference]: Start difference. First operand 420 states and 649 transitions. Second operand has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-11-08 21:51:20,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 21:51:20,383 INFO L93 Difference]: Finished difference Result 690 states and 1054 transitions. [2024-11-08 21:51:20,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 21:51:20,384 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 295 [2024-11-08 21:51:20,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 21:51:20,390 INFO L225 Difference]: With dead ends: 690 [2024-11-08 21:51:20,390 INFO L226 Difference]: Without dead ends: 551 [2024-11-08 21:51:20,391 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=142, Invalid=410, Unknown=0, NotChecked=0, Total=552 [2024-11-08 21:51:20,392 INFO L432 NwaCegarLoop]: 266 mSDtfsCounter, 817 mSDsluCounter, 1482 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 817 SdHoareTripleChecker+Valid, 1748 SdHoareTripleChecker+Invalid, 1484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 21:51:20,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [817 Valid, 1748 Invalid, 1484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 21:51:20,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-11-08 21:51:20,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 421. [2024-11-08 21:51:20,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 268 states have (on average 1.3544776119402986) internal successors, (363), 269 states have internal predecessors, (363), 144 states have call successors, (144), 8 states have call predecessors, (144), 8 states have return successors, (144), 143 states have call predecessors, (144), 144 states have call successors, (144) [2024-11-08 21:51:20,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 651 transitions. [2024-11-08 21:51:20,441 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 651 transitions. Word has length 295 [2024-11-08 21:51:20,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 21:51:20,443 INFO L471 AbstractCegarLoop]: Abstraction has 421 states and 651 transitions. [2024-11-08 21:51:20,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-11-08 21:51:20,443 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 651 transitions. [2024-11-08 21:51:20,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-11-08 21:51:20,447 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:51:20,447 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 21:51:20,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 21:51:20,448 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:51:20,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:51:20,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1540223034, now seen corresponding path program 1 times [2024-11-08 21:51:20,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:51:20,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665859184] [2024-11-08 21:51:20,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:51:20,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:51:20,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat