./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-45.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-45.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 bcbe3dc24022b24f123b951a18829c99d17fb6c84443031a1458b3b1b90464fa --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 21:54:05,263 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 21:54:05,323 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 21:54:05,329 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 21:54:05,329 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 21:54:05,349 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 21:54:05,349 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 21:54:05,350 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 21:54:05,350 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 21:54:05,351 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 21:54:05,351 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 21:54:05,351 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 21:54:05,352 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 21:54:05,352 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 21:54:05,352 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 21:54:05,353 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 21:54:05,353 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 21:54:05,354 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 21:54:05,354 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 21:54:05,354 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 21:54:05,355 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 21:54:05,355 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 21:54:05,355 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 21:54:05,356 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 21:54:05,356 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 21:54:05,356 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 21:54:05,357 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 21:54:05,357 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 21:54:05,357 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 21:54:05,358 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 21:54:05,358 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 21:54:05,358 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 21:54:05,359 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 21:54:05,359 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 21:54:05,360 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 21:54:05,360 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 21:54:05,360 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 21:54:05,360 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 21:54:05,361 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 21:54:05,361 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 21:54:05,361 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 21:54:05,365 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 21:54:05,365 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bcbe3dc24022b24f123b951a18829c99d17fb6c84443031a1458b3b1b90464fa [2024-11-08 21:54:05,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 21:54:05,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 21:54:05,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 21:54:05,674 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 21:54:05,675 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 21:54:05,677 INFO L431 ainManager$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-45.i [2024-11-08 21:54:07,162 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 21:54:07,435 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 21:54:07,439 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-45.i [2024-11-08 21:54:07,455 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b246d4ec0/037b492c7a47474b8a935f2c8fb25ee4/FLAG425ce3244 [2024-11-08 21:54:07,470 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b246d4ec0/037b492c7a47474b8a935f2c8fb25ee4 [2024-11-08 21:54:07,474 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 21:54:07,476 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 21:54:07,478 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 21:54:07,478 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 21:54:07,483 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 21:54:07,484 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 09:54:07" (1/1) ... [2024-11-08 21:54:07,485 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e914136 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:54:07, skipping insertion in model container [2024-11-08 21:54:07,485 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 09:54:07" (1/1) ... [2024-11-08 21:54:07,519 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 21:54:07,697 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-45.i[919,932] [2024-11-08 21:54:07,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 21:54:07,803 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 21:54:07,816 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-45.i[919,932] [2024-11-08 21:54:07,867 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 21:54:07,889 INFO L204 MainTranslator]: Completed translation [2024-11-08 21:54:07,890 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:54:07 WrapperNode [2024-11-08 21:54:07,890 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 21:54:07,891 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 21:54:07,894 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 21:54:07,894 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 21:54:07,901 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:54:07" (1/1) ... [2024-11-08 21:54:07,910 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:54:07" (1/1) ... [2024-11-08 21:54:07,953 INFO L138 Inliner]: procedures = 26, calls = 54, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 239 [2024-11-08 21:54:07,954 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 21:54:07,954 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 21:54:07,954 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 21:54:07,955 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 21:54:07,967 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:54:07" (1/1) ... [2024-11-08 21:54:07,967 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:54:07" (1/1) ... [2024-11-08 21:54:07,975 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:54:07" (1/1) ... [2024-11-08 21:54:07,999 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 21:54:08,001 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:54:07" (1/1) ... [2024-11-08 21:54:08,001 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:54:07" (1/1) ... [2024-11-08 21:54:08,014 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:54:07" (1/1) ... [2024-11-08 21:54:08,022 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:54:07" (1/1) ... [2024-11-08 21:54:08,026 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:54:07" (1/1) ... [2024-11-08 21:54:08,029 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:54:07" (1/1) ... [2024-11-08 21:54:08,033 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 21:54:08,034 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 21:54:08,034 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 21:54:08,034 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 21:54:08,036 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:54:07" (1/1) ... [2024-11-08 21:54:08,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 21:54:08,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 21:54:08,073 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 21:54:08,077 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 21:54:08,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 21:54:08,125 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 21:54:08,126 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 21:54:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 21:54:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 21:54:08,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 21:54:08,219 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 21:54:08,224 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 21:54:08,633 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-08 21:54:08,634 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 21:54:08,651 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 21:54:08,651 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 21:54:08,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 09:54:08 BoogieIcfgContainer [2024-11-08 21:54:08,652 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 21:54:08,654 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 21:54:08,654 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 21:54:08,658 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 21:54:08,658 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 09:54:07" (1/3) ... [2024-11-08 21:54:08,659 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42db5145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 09:54:08, skipping insertion in model container [2024-11-08 21:54:08,659 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:54:07" (2/3) ... [2024-11-08 21:54:08,659 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42db5145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 09:54:08, skipping insertion in model container [2024-11-08 21:54:08,659 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 09:54:08" (3/3) ... [2024-11-08 21:54:08,661 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-cn_file-45.i [2024-11-08 21:54:08,678 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 21:54:08,678 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 21:54:08,751 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 21:54:08,757 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;@7e362496, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 21:54:08,757 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 21:54:08,761 INFO L276 IsEmpty]: Start isEmpty. Operand has 106 states, 62 states have (on average 1.3870967741935485) internal successors, (86), 63 states have internal predecessors, (86), 41 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-08 21:54:08,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-11-08 21:54:08,781 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:54:08,782 INFO L215 NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:54:08,782 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:54:08,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:54:08,788 INFO L85 PathProgramCache]: Analyzing trace with hash -466030540, now seen corresponding path program 1 times [2024-11-08 21:54:08,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:54:08,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152480378] [2024-11-08 21:54:08,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:54:08,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:54:09,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 21:54:09,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 21:54:09,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 21:54:09,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 21:54:09,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 21:54:09,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 21:54:09,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 21:54:09,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 21:54:09,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 21:54:09,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 21:54:09,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 21:54:09,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 21:54:09,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 21:54:09,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 21:54:09,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 21:54:09,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 21:54:09,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 21:54:09,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 21:54:09,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 21:54:09,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 21:54:09,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 21:54:09,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-08 21:54:09,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-08 21:54:09,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-08 21:54:09,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-08 21:54:09,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-08 21:54:09,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-08 21:54:09,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-08 21:54:09,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-08 21:54:09,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-08 21:54:09,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-08 21:54:09,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-08 21:54:09,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-11-08 21:54:09,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-11-08 21:54:09,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-11-08 21:54:09,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-08 21:54:09,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-11-08 21:54:09,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-11-08 21:54:09,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-11-08 21:54:09,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-11-08 21:54:09,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-11-08 21:54:09,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:09,693 INFO L134 CoverageAnalysis]: Checked inductivity of 3280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2024-11-08 21:54:09,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 21:54:09,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152480378] [2024-11-08 21:54:09,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152480378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 21:54:09,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 21:54:09,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 21:54:09,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936239471] [2024-11-08 21:54:09,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 21:54:09,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 21:54:09,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 21:54:09,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 21:54:09,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 21:54:09,735 INFO L87 Difference]: Start difference. First operand has 106 states, 62 states have (on average 1.3870967741935485) internal successors, (86), 63 states have internal predecessors, (86), 41 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-11-08 21:54:09,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 21:54:09,841 INFO L93 Difference]: Finished difference Result 260 states and 476 transitions. [2024-11-08 21:54:09,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 21:54:09,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) Word has length 254 [2024-11-08 21:54:09,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 21:54:09,860 INFO L225 Difference]: With dead ends: 260 [2024-11-08 21:54:09,860 INFO L226 Difference]: Without dead ends: 157 [2024-11-08 21:54:09,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 21:54:09,872 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 78 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 21:54:09,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 356 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 21:54:09,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-11-08 21:54:09,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 154. [2024-11-08 21:54:09,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 94 states have (on average 1.3617021276595744) internal successors, (128), 95 states have internal predecessors, (128), 57 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-08 21:54:09,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 242 transitions. [2024-11-08 21:54:09,948 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 242 transitions. Word has length 254 [2024-11-08 21:54:09,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 21:54:09,950 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 242 transitions. [2024-11-08 21:54:09,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-11-08 21:54:09,950 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 242 transitions. [2024-11-08 21:54:09,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-11-08 21:54:09,955 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:54:09,956 INFO L215 NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:54:09,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 21:54:09,959 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:54:09,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:54:09,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1745894218, now seen corresponding path program 1 times [2024-11-08 21:54:09,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:54:09,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950835312] [2024-11-08 21:54:09,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:54:09,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:54:10,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 21:54:10,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 21:54:10,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 21:54:10,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 21:54:10,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 21:54:10,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 21:54:10,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 21:54:10,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 21:54:10,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 21:54:10,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 21:54:10,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 21:54:10,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 21:54:10,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 21:54:10,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 21:54:10,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 21:54:10,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 21:54:10,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 21:54:10,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 21:54:10,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 21:54:10,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 21:54:10,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 21:54:10,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-08 21:54:10,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-08 21:54:10,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-08 21:54:10,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-08 21:54:10,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-08 21:54:10,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-08 21:54:10,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-08 21:54:10,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-08 21:54:10,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-08 21:54:10,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-08 21:54:10,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-08 21:54:10,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-11-08 21:54:10,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-11-08 21:54:10,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-11-08 21:54:10,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-08 21:54:10,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-11-08 21:54:10,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-11-08 21:54:10,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-11-08 21:54:10,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-11-08 21:54:10,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-11-08 21:54:10,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:10,378 INFO L134 CoverageAnalysis]: Checked inductivity of 3280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2024-11-08 21:54:10,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 21:54:10,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950835312] [2024-11-08 21:54:10,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950835312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 21:54:10,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 21:54:10,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 21:54:10,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243438531] [2024-11-08 21:54:10,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 21:54:10,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 21:54:10,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 21:54:10,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 21:54:10,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 21:54:10,386 INFO L87 Difference]: Start difference. First operand 154 states and 242 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-11-08 21:54:10,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 21:54:10,477 INFO L93 Difference]: Finished difference Result 450 states and 708 transitions. [2024-11-08 21:54:10,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 21:54:10,479 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) Word has length 254 [2024-11-08 21:54:10,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 21:54:10,487 INFO L225 Difference]: With dead ends: 450 [2024-11-08 21:54:10,489 INFO L226 Difference]: Without dead ends: 299 [2024-11-08 21:54:10,491 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 21:54:10,495 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 148 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 21:54:10,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 315 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 21:54:10,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-11-08 21:54:10,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 297. [2024-11-08 21:54:10,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 178 states have (on average 1.3146067415730338) internal successors, (234), 180 states have internal predecessors, (234), 114 states have call successors, (114), 4 states have call predecessors, (114), 4 states have return successors, (114), 112 states have call predecessors, (114), 114 states have call successors, (114) [2024-11-08 21:54:10,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 462 transitions. [2024-11-08 21:54:10,569 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 462 transitions. Word has length 254 [2024-11-08 21:54:10,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 21:54:10,573 INFO L471 AbstractCegarLoop]: Abstraction has 297 states and 462 transitions. [2024-11-08 21:54:10,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-11-08 21:54:10,574 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 462 transitions. [2024-11-08 21:54:10,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-11-08 21:54:10,578 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:54:10,581 INFO L215 NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:54:10,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 21:54:10,581 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:54:10,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:54:10,583 INFO L85 PathProgramCache]: Analyzing trace with hash 989223394, now seen corresponding path program 1 times [2024-11-08 21:54:10,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:54:10,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553220276] [2024-11-08 21:54:10,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:54:10,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:54:10,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 21:54:26,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 21:54:26,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 21:54:26,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 21:54:26,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 21:54:26,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 21:54:26,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 21:54:26,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 21:54:26,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 21:54:26,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 21:54:26,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 21:54:26,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 21:54:26,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 21:54:26,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 21:54:26,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 21:54:26,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 21:54:26,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 21:54:26,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 21:54:26,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 21:54:26,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 21:54:26,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 21:54:26,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-08 21:54:26,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-08 21:54:26,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-08 21:54:26,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-08 21:54:26,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-08 21:54:26,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-08 21:54:26,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-08 21:54:26,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-08 21:54:26,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-08 21:54:26,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-08 21:54:26,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-08 21:54:26,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-11-08 21:54:26,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-11-08 21:54:26,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-11-08 21:54:26,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-08 21:54:26,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-11-08 21:54:26,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-11-08 21:54:26,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-11-08 21:54:26,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-11-08 21:54:26,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-11-08 21:54:26,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:26,691 INFO L134 CoverageAnalysis]: Checked inductivity of 3280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2024-11-08 21:54:26,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 21:54:26,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553220276] [2024-11-08 21:54:26,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553220276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 21:54:26,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 21:54:26,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 21:54:26,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200597215] [2024-11-08 21:54:26,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 21:54:26,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 21:54:26,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 21:54:26,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 21:54:26,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-08 21:54:26,697 INFO L87 Difference]: Start difference. First operand 297 states and 462 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-11-08 21:54:27,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 21:54:27,140 INFO L93 Difference]: Finished difference Result 875 states and 1337 transitions. [2024-11-08 21:54:27,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 21:54:27,142 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) Word has length 255 [2024-11-08 21:54:27,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 21:54:27,148 INFO L225 Difference]: With dead ends: 875 [2024-11-08 21:54:27,148 INFO L226 Difference]: Without dead ends: 581 [2024-11-08 21:54:27,149 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-08 21:54:27,150 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 113 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 21:54:27,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 408 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 21:54:27,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2024-11-08 21:54:27,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 475. [2024-11-08 21:54:27,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 320 states have (on average 1.375) internal successors, (440), 326 states have internal predecessors, (440), 146 states have call successors, (146), 8 states have call predecessors, (146), 8 states have return successors, (146), 140 states have call predecessors, (146), 146 states have call successors, (146) [2024-11-08 21:54:27,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 732 transitions. [2024-11-08 21:54:27,267 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 732 transitions. Word has length 255 [2024-11-08 21:54:27,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 21:54:27,268 INFO L471 AbstractCegarLoop]: Abstraction has 475 states and 732 transitions. [2024-11-08 21:54:27,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-11-08 21:54:27,270 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 732 transitions. [2024-11-08 21:54:27,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-11-08 21:54:27,273 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:54:27,273 INFO L215 NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:54:27,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 21:54:27,274 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:54:27,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:54:27,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1247388832, now seen corresponding path program 1 times [2024-11-08 21:54:27,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:54:27,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388190178] [2024-11-08 21:54:27,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:54:27,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:54:27,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 21:54:29,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 21:54:29,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 21:54:29,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 21:54:29,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 21:54:29,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 21:54:29,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 21:54:29,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 21:54:29,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 21:54:29,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 21:54:29,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 21:54:29,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 21:54:29,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 21:54:29,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 21:54:29,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 21:54:29,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 21:54:29,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 21:54:29,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 21:54:29,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 21:54:29,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 21:54:29,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 21:54:29,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-08 21:54:29,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-08 21:54:29,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-08 21:54:29,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-08 21:54:29,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-08 21:54:29,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-08 21:54:29,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-08 21:54:29,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-08 21:54:29,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-08 21:54:29,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-08 21:54:29,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-08 21:54:29,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-11-08 21:54:29,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-11-08 21:54:29,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-11-08 21:54:29,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-08 21:54:29,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-11-08 21:54:29,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-11-08 21:54:29,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-11-08 21:54:29,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-11-08 21:54:29,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-11-08 21:54:29,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:54:29,453 INFO L134 CoverageAnalysis]: Checked inductivity of 3280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2024-11-08 21:54:29,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 21:54:29,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388190178] [2024-11-08 21:54:29,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388190178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 21:54:29,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 21:54:29,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 21:54:29,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553372850] [2024-11-08 21:54:29,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 21:54:29,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 21:54:29,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 21:54:29,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 21:54:29,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-08 21:54:29,456 INFO L87 Difference]: Start difference. First operand 475 states and 732 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-11-08 21:54:29,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 21:54:29,837 INFO L93 Difference]: Finished difference Result 1053 states and 1605 transitions. [2024-11-08 21:54:29,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 21:54:29,838 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) Word has length 255 [2024-11-08 21:54:29,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 21:54:29,845 INFO L225 Difference]: With dead ends: 1053 [2024-11-08 21:54:29,845 INFO L226 Difference]: Without dead ends: 581 [2024-11-08 21:54:29,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-08 21:54:29,849 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 107 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 21:54:29,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 523 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 21:54:29,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2024-11-08 21:54:29,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 457. [2024-11-08 21:54:29,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 302 states have (on average 1.3576158940397351) internal successors, (410), 308 states have internal predecessors, (410), 146 states have call successors, (146), 8 states have call predecessors, (146), 8 states have return successors, (146), 140 states have call predecessors, (146), 146 states have call successors, (146) [2024-11-08 21:54:29,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 702 transitions. [2024-11-08 21:54:29,934 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 702 transitions. Word has length 255 [2024-11-08 21:54:29,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 21:54:29,935 INFO L471 AbstractCegarLoop]: Abstraction has 457 states and 702 transitions. [2024-11-08 21:54:29,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-11-08 21:54:29,936 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 702 transitions. [2024-11-08 21:54:29,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-11-08 21:54:29,942 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:54:29,943 INFO L215 NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:54:29,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 21:54:29,943 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:54:29,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:54:29,944 INFO L85 PathProgramCache]: Analyzing trace with hash 169218278, now seen corresponding path program 1 times [2024-11-08 21:54:29,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:54:29,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955768178] [2024-11-08 21:54:29,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:54:29,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:54:30,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat