/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-58.i


--------------------------------------------------------------------------------


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 11:03:02,168 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 11:03:02,205 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-12-23 11:03:02,208 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 11:03:02,208 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 11:03:02,221 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 11:03:02,221 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 11:03:02,222 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 11:03:02,222 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 11:03:02,222 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 11:03:02,223 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 11:03:02,223 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 11:03:02,223 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 11:03:02,223 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 11:03:02,224 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 11:03:02,224 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 11:03:02,224 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 11:03:02,224 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 11:03:02,225 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 11:03:02,225 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 11:03:02,225 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 11:03:02,225 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 11:03:02,226 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 11:03:02,226 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 11:03:02,226 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 11:03:02,226 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 11:03:02,227 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 11:03:02,227 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 11:03:02,227 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 11:03:02,227 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 11:03:02,228 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 11:03:02,228 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 11:03:02,228 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 11:03:02,228 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 11:03:02,229 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 11:03:02,229 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 11:03:02,229 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 11:03:02,229 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 11:03:02,229 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 11:03:02,230 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 11:03:02,230 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 11:03:02,230 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 11:03:02,230 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 11:03:02,231 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 11:03:02,231 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 11:03:02,231 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 11:03:02,231 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 11:03:02,390 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 11:03:02,408 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 11:03:02,410 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 11:03:02,411 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 11:03:02,411 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 11:03:02,413 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-58.i
[2023-12-23 11:03:03,426 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 11:03:03,568 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 11:03:03,569 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-58.i
[2023-12-23 11:03:03,574 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/622c5d87c/7c8e229de2364b23ab7040fd345a31b3/FLAG9761684db
[2023-12-23 11:03:03,589 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/622c5d87c/7c8e229de2364b23ab7040fd345a31b3
[2023-12-23 11:03:03,590 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 11:03:03,591 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 11:03:03,592 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 11:03:03,592 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 11:03:03,596 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 11:03:03,596 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:03:03" (1/1) ...
[2023-12-23 11:03:03,597 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@608433b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:03:03, skipping insertion in model container
[2023-12-23 11:03:03,597 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:03:03" (1/1) ...
[2023-12-23 11:03:03,621 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 11:03:03,721 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-58.i[919,932]
[2023-12-23 11:03:03,761 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 11:03:03,775 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 11:03:03,783 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-58.i[919,932]
[2023-12-23 11:03:03,806 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 11:03:03,818 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 11:03:03,818 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:03:03 WrapperNode
[2023-12-23 11:03:03,818 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 11:03:03,819 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 11:03:03,819 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 11:03:03,819 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 11:03:03,824 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:03:03" (1/1) ...
[2023-12-23 11:03:03,833 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:03:03" (1/1) ...
[2023-12-23 11:03:03,856 INFO  L138                Inliner]: procedures = 27, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 184
[2023-12-23 11:03:03,856 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 11:03:03,857 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 11:03:03,857 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 11:03:03,857 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 11:03:03,864 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:03:03" (1/1) ...
[2023-12-23 11:03:03,864 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:03:03" (1/1) ...
[2023-12-23 11:03:03,868 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:03:03" (1/1) ...
[2023-12-23 11:03:03,878 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].
[2023-12-23 11:03:03,878 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:03:03" (1/1) ...
[2023-12-23 11:03:03,878 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:03:03" (1/1) ...
[2023-12-23 11:03:03,886 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:03:03" (1/1) ...
[2023-12-23 11:03:03,889 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:03:03" (1/1) ...
[2023-12-23 11:03:03,891 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:03:03" (1/1) ...
[2023-12-23 11:03:03,892 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:03:03" (1/1) ...
[2023-12-23 11:03:03,894 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 11:03:03,895 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 11:03:03,895 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 11:03:03,895 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 11:03:03,896 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:03:03" (1/1) ...
[2023-12-23 11:03:03,900 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 11:03:03,909 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 11:03:03,919 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)
[2023-12-23 11:03:03,936 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
[2023-12-23 11:03:03,946 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 11:03:03,946 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 11:03:03,946 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 11:03:03,947 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 11:03:03,947 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 11:03:03,948 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 11:03:04,033 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 11:03:04,035 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 11:03:04,409 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 11:03:04,449 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 11:03:04,449 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 11:03:04,450 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:03:04 BoogieIcfgContainer
[2023-12-23 11:03:04,450 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 11:03:04,453 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 11:03:04,453 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 11:03:04,455 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 11:03:04,455 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 11:03:03" (1/3) ...
[2023-12-23 11:03:04,456 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b672ffe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:03:04, skipping insertion in model container
[2023-12-23 11:03:04,456 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:03:03" (2/3) ...
[2023-12-23 11:03:04,456 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b672ffe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:03:04, skipping insertion in model container
[2023-12-23 11:03:04,456 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:03:04" (3/3) ...
[2023-12-23 11:03:04,457 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-58.i
[2023-12-23 11:03:04,469 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 11:03:04,470 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 11:03:04,511 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 11:03:04,518 INFO  L357      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, mHoare=true, 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;@14d6015f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 11:03:04,518 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 11:03:04,521 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 76 states, 47 states have (on average 1.5319148936170213) internal successors, (72), 48 states have internal predecessors, (72), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26)
[2023-12-23 11:03:04,535 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 165
[2023-12-23 11:03:04,536 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 11:03:04,537 INFO  L195           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 11:03:04,538 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 11:03:04,541 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 11:03:04,541 INFO  L85        PathProgramCache]: Analyzing trace with hash -453274411, now seen corresponding path program 1 times
[2023-12-23 11:03:04,550 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 11:03:04,551 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1938884490]
[2023-12-23 11:03:04,551 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 11:03:04,551 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 11:03:04,551 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 11:03:04,553 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 11:03:04,558 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2023-12-23 11:03:04,755 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 11:03:04,763 INFO  L262         TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 11:03:04,770 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 11:03:04,808 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 386 proven. 0 refuted. 0 times theorem prover too weak. 914 trivial. 0 not checked.
[2023-12-23 11:03:04,809 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 11:03:04,809 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 11:03:04,809 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1938884490]
[2023-12-23 11:03:04,810 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1938884490] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 11:03:04,810 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 11:03:04,810 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 11:03:04,811 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60438061]
[2023-12-23 11:03:04,815 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 11:03:04,820 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 11:03:04,820 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 11:03:04,845 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 11:03:04,846 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 11:03:04,848 INFO  L87              Difference]: Start difference. First operand  has 76 states, 47 states have (on average 1.5319148936170213) internal successors, (72), 48 states have internal predecessors, (72), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand  has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26)
[2023-12-23 11:03:04,906 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 11:03:04,906 INFO  L93              Difference]: Finished difference Result 149 states and 272 transitions.
[2023-12-23 11:03:04,911 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 11:03:04,912 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 164
[2023-12-23 11:03:04,913 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 11:03:04,919 INFO  L225             Difference]: With dead ends: 149
[2023-12-23 11:03:04,919 INFO  L226             Difference]: Without dead ends: 74
[2023-12-23 11:03:04,923 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 11:03:04,926 INFO  L413           NwaCegarLoop]: 114 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-23 11:03:04,926 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 114 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-23 11:03:04,937 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 74 states.
[2023-12-23 11:03:04,958 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74.
[2023-12-23 11:03:04,959 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 74 states, 46 states have (on average 1.4130434782608696) internal successors, (65), 46 states have internal predecessors, (65), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26)
[2023-12-23 11:03:04,964 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 117 transitions.
[2023-12-23 11:03:04,965 INFO  L78                 Accepts]: Start accepts. Automaton has 74 states and 117 transitions. Word has length 164
[2023-12-23 11:03:04,965 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 11:03:04,966 INFO  L495      AbstractCegarLoop]: Abstraction has 74 states and 117 transitions.
[2023-12-23 11:03:04,966 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26)
[2023-12-23 11:03:04,966 INFO  L276                IsEmpty]: Start isEmpty. Operand 74 states and 117 transitions.
[2023-12-23 11:03:04,975 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 165
[2023-12-23 11:03:04,975 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 11:03:04,976 INFO  L195           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 11:03:04,984 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2023-12-23 11:03:05,180 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 11:03:05,181 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 11:03:05,182 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 11:03:05,182 INFO  L85        PathProgramCache]: Analyzing trace with hash 1793981649, now seen corresponding path program 1 times
[2023-12-23 11:03:05,182 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 11:03:05,183 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [713511887]
[2023-12-23 11:03:05,183 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 11:03:05,183 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 11:03:05,183 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 11:03:05,184 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 11:03:05,185 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2023-12-23 11:03:05,346 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 11:03:05,353 INFO  L262         TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-23 11:03:05,359 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 11:03:05,473 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 519 proven. 18 refuted. 0 times theorem prover too weak. 763 trivial. 0 not checked.
[2023-12-23 11:03:05,473 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 11:03:05,506 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 11:03:05,509 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [713511887]
[2023-12-23 11:03:05,510 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [713511887] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 11:03:05,510 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2137827348]
[2023-12-23 11:03:05,510 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 11:03:05,510 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-23 11:03:05,511 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-23 11:03:05,549 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2023-12-23 11:03:05,560 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process
[2023-12-23 11:03:05,952 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 11:03:05,959 INFO  L262         TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-23 11:03:05,963 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 11:03:06,039 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 519 proven. 18 refuted. 0 times theorem prover too weak. 763 trivial. 0 not checked.
[2023-12-23 11:03:06,040 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 11:03:06,053 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2137827348] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 11:03:06,054 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 11:03:06,054 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5
[2023-12-23 11:03:06,055 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417358182]
[2023-12-23 11:03:06,055 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 11:03:06,056 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-23 11:03:06,057 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 11:03:06,058 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-23 11:03:06,058 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-23 11:03:06,058 INFO  L87              Difference]: Start difference. First operand 74 states and 117 transitions. Second operand  has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26)
[2023-12-23 11:03:06,319 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 11:03:06,319 INFO  L93              Difference]: Finished difference Result 153 states and 238 transitions.
[2023-12-23 11:03:06,323 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2023-12-23 11:03:06,324 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 164
[2023-12-23 11:03:06,324 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 11:03:06,325 INFO  L225             Difference]: With dead ends: 153
[2023-12-23 11:03:06,325 INFO  L226             Difference]: Without dead ends: 80
[2023-12-23 11:03:06,326 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90
[2023-12-23 11:03:06,327 INFO  L413           NwaCegarLoop]: 73 mSDtfsCounter, 79 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-23 11:03:06,327 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 167 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-23 11:03:06,327 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 80 states.
[2023-12-23 11:03:06,335 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78.
[2023-12-23 11:03:06,335 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 78 states, 49 states have (on average 1.3673469387755102) internal successors, (67), 49 states have internal predecessors, (67), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26)
[2023-12-23 11:03:06,336 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 119 transitions.
[2023-12-23 11:03:06,336 INFO  L78                 Accepts]: Start accepts. Automaton has 78 states and 119 transitions. Word has length 164
[2023-12-23 11:03:06,337 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 11:03:06,337 INFO  L495      AbstractCegarLoop]: Abstraction has 78 states and 119 transitions.
[2023-12-23 11:03:06,337 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26)
[2023-12-23 11:03:06,337 INFO  L276                IsEmpty]: Start isEmpty. Operand 78 states and 119 transitions.
[2023-12-23 11:03:06,338 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 166
[2023-12-23 11:03:06,338 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 11:03:06,338 INFO  L195           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 11:03:06,346 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0
[2023-12-23 11:03:06,553 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2023-12-23 11:03:06,748 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 11:03:06,749 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 11:03:06,750 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 11:03:06,750 INFO  L85        PathProgramCache]: Analyzing trace with hash -820460571, now seen corresponding path program 1 times
[2023-12-23 11:03:06,751 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 11:03:06,751 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1189773160]
[2023-12-23 11:03:06,751 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 11:03:06,751 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 11:03:06,751 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 11:03:06,752 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 11:03:06,754 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2023-12-23 11:03:06,899 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 11:03:06,906 INFO  L262         TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 13 conjunts are in the unsatisfiable core
[2023-12-23 11:03:06,910 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 11:03:10,028 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 714 proven. 90 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked.
[2023-12-23 11:03:10,028 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 11:03:13,918 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 11:03:13,918 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1189773160]
[2023-12-23 11:03:13,918 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1189773160] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 11:03:13,918 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1425616125]
[2023-12-23 11:03:13,919 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 11:03:13,919 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-23 11:03:13,919 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-23 11:03:13,920 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2023-12-23 11:03:13,935 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process
[2023-12-23 11:03:17,216 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 11:03:17,224 INFO  L262         TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 12 conjunts are in the unsatisfiable core
[2023-12-23 11:03:17,228 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 11:03:18,919 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 603 proven. 24 refuted. 0 times theorem prover too weak. 673 trivial. 0 not checked.
[2023-12-23 11:03:18,919 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 11:03:21,225 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1425616125] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 11:03:21,226 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 11:03:21,226 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 13
[2023-12-23 11:03:21,226 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134209489]
[2023-12-23 11:03:21,226 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 11:03:21,226 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2023-12-23 11:03:21,227 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 11:03:21,227 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2023-12-23 11:03:21,227 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342
[2023-12-23 11:03:21,228 INFO  L87              Difference]: Start difference. First operand 78 states and 119 transitions. Second operand  has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 13 states have internal predecessors, (67), 4 states have call successors, (49), 4 states have call predecessors, (49), 6 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50)
[2023-12-23 11:03:31,668 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 11:03:31,668 INFO  L93              Difference]: Finished difference Result 353 states and 529 transitions.
[2023-12-23 11:03:31,674 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2023-12-23 11:03:31,674 INFO  L78                 Accepts]: Start accepts. Automaton has  has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 13 states have internal predecessors, (67), 4 states have call successors, (49), 4 states have call predecessors, (49), 6 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) Word has length 165
[2023-12-23 11:03:31,675 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 11:03:31,676 INFO  L225             Difference]: With dead ends: 353
[2023-12-23 11:03:31,676 INFO  L226             Difference]: Without dead ends: 276
[2023-12-23 11:03:31,678 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=326, Invalid=1080, Unknown=0, NotChecked=0, Total=1406
[2023-12-23 11:03:31,678 INFO  L413           NwaCegarLoop]: 72 mSDtfsCounter, 528 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time
[2023-12-23 11:03:31,679 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 754 Invalid, 953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time]
[2023-12-23 11:03:31,679 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 276 states.
[2023-12-23 11:03:31,708 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 196.
[2023-12-23 11:03:31,708 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 196 states, 137 states have (on average 1.416058394160584) internal successors, (194), 137 states have internal predecessors, (194), 52 states have call successors, (52), 6 states have call predecessors, (52), 6 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52)
[2023-12-23 11:03:31,712 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 298 transitions.
[2023-12-23 11:03:31,712 INFO  L78                 Accepts]: Start accepts. Automaton has 196 states and 298 transitions. Word has length 165
[2023-12-23 11:03:31,713 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 11:03:31,713 INFO  L495      AbstractCegarLoop]: Abstraction has 196 states and 298 transitions.
[2023-12-23 11:03:31,714 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 13 states have internal predecessors, (67), 4 states have call successors, (49), 4 states have call predecessors, (49), 6 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50)
[2023-12-23 11:03:31,714 INFO  L276                IsEmpty]: Start isEmpty. Operand 196 states and 298 transitions.
[2023-12-23 11:03:31,716 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 166
[2023-12-23 11:03:31,716 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 11:03:31,716 INFO  L195           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 11:03:31,723 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2023-12-23 11:03:31,923 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0
[2023-12-23 11:03:32,116 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2023-12-23 11:03:32,117 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 11:03:32,117 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 11:03:32,117 INFO  L85        PathProgramCache]: Analyzing trace with hash -820520153, now seen corresponding path program 1 times
[2023-12-23 11:03:32,118 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 11:03:32,118 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1453538107]
[2023-12-23 11:03:32,118 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 11:03:32,118 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 11:03:32,118 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 11:03:32,119 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 11:03:32,119 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process
[2023-12-23 11:03:32,250 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 11:03:32,256 INFO  L262         TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-23 11:03:32,259 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 11:03:32,318 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 403 proven. 12 refuted. 0 times theorem prover too weak. 885 trivial. 0 not checked.
[2023-12-23 11:03:32,318 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 11:03:32,426 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 11:03:32,427 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1453538107]
[2023-12-23 11:03:32,427 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1453538107] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 11:03:32,427 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [134157835]
[2023-12-23 11:03:32,427 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 11:03:32,427 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-23 11:03:32,427 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-23 11:03:32,428 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2023-12-23 11:03:32,443 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process
[2023-12-23 11:03:35,394 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 11:03:35,400 INFO  L262         TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-23 11:03:35,403 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 11:03:35,479 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 403 proven. 12 refuted. 0 times theorem prover too weak. 885 trivial. 0 not checked.
[2023-12-23 11:03:35,479 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 11:03:35,618 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [134157835] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 11:03:35,618 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 11:03:35,618 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5
[2023-12-23 11:03:35,618 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914359815]
[2023-12-23 11:03:35,619 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 11:03:35,619 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-23 11:03:35,619 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 11:03:35,620 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-23 11:03:35,620 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2023-12-23 11:03:35,620 INFO  L87              Difference]: Start difference. First operand 196 states and 298 transitions. Second operand  has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26)
[2023-12-23 11:03:35,812 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 11:03:35,813 INFO  L93              Difference]: Finished difference Result 405 states and 607 transitions.
[2023-12-23 11:03:35,818 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2023-12-23 11:03:35,818 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 165
[2023-12-23 11:03:35,819 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 11:03:35,820 INFO  L225             Difference]: With dead ends: 405
[2023-12-23 11:03:35,820 INFO  L226             Difference]: Without dead ends: 210
[2023-12-23 11:03:35,821 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 366 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2023-12-23 11:03:35,821 INFO  L413           NwaCegarLoop]: 81 mSDtfsCounter, 71 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-23 11:03:35,822 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 191 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-23 11:03:35,822 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 210 states.
[2023-12-23 11:03:35,834 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 204.
[2023-12-23 11:03:35,835 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 204 states, 143 states have (on average 1.3426573426573427) internal successors, (192), 143 states have internal predecessors, (192), 52 states have call successors, (52), 8 states have call predecessors, (52), 8 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52)
[2023-12-23 11:03:35,836 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 296 transitions.
[2023-12-23 11:03:35,836 INFO  L78                 Accepts]: Start accepts. Automaton has 204 states and 296 transitions. Word has length 165
[2023-12-23 11:03:35,836 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 11:03:35,836 INFO  L495      AbstractCegarLoop]: Abstraction has 204 states and 296 transitions.
[2023-12-23 11:03:35,837 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26)
[2023-12-23 11:03:35,837 INFO  L276                IsEmpty]: Start isEmpty. Operand 204 states and 296 transitions.
[2023-12-23 11:03:35,838 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 168
[2023-12-23 11:03:35,838 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 11:03:35,838 INFO  L195           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 11:03:35,844 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0
[2023-12-23 11:03:36,052 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0
[2023-12-23 11:03:36,248 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2023-12-23 11:03:36,249 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 11:03:36,249 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 11:03:36,249 INFO  L85        PathProgramCache]: Analyzing trace with hash 84713650, now seen corresponding path program 1 times
[2023-12-23 11:03:36,250 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 11:03:36,250 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2072365554]
[2023-12-23 11:03:36,250 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 11:03:36,250 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 11:03:36,250 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 11:03:36,251 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 11:03:36,255 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process
[2023-12-23 11:03:36,452 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 11:03:36,459 INFO  L262         TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 37 conjunts are in the unsatisfiable core
[2023-12-23 11:03:36,463 INFO  L285         TraceCheckSpWp]: Computing forward predicates...