/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_fillercodesize_ps-cn-100_file-97.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 00:52:11,827 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 00:52:11,900 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 00:52:11,904 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 00:52:11,904 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 00:52:11,927 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 00:52:11,928 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 00:52:11,928 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 00:52:11,928 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 00:52:11,931 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 00:52:11,932 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 00:52:11,932 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 00:52:11,933 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 00:52:11,934 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 00:52:11,934 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 00:52:11,934 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 00:52:11,935 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 00:52:11,935 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 00:52:11,935 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 00:52:11,936 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 00:52:11,936 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 00:52:11,936 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 00:52:11,937 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 00:52:11,937 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 00:52:11,937 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 00:52:11,937 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 00:52:11,937 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 00:52:11,937 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 00:52:11,938 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 00:52:11,938 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 00:52:11,939 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 00:52:11,939 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 00:52:11,939 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 00:52:11,939 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 00:52:11,939 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 00:52:11,939 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 00:52:11,939 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 00:52:11,939 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 00:52:11,940 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 00:52:11,940 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 00:52:11,940 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 00:52:11,940 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 00:52:11,940 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 00:52:11,940 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 00:52:11,941 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 00:52:11,941 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 00:52:11,941 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 00:52:12,149 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 00:52:12,167 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 00:52:12,169 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 00:52:12,170 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 00:52:12,170 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 00:52:12,171 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-97.i
[2023-12-23 00:52:13,255 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 00:52:13,452 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 00:52:13,452 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-97.i
[2023-12-23 00:52:13,462 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1084d1ffa/c2eca9a2296a4e1780133b0241f681aa/FLAGf6ae286c7
[2023-12-23 00:52:13,476 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1084d1ffa/c2eca9a2296a4e1780133b0241f681aa
[2023-12-23 00:52:13,478 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 00:52:13,480 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 00:52:13,482 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 00:52:13,482 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 00:52:13,486 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 00:52:13,486 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 12:52:13" (1/1) ...
[2023-12-23 00:52:13,487 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7199f12a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:52:13, skipping insertion in model container
[2023-12-23 00:52:13,487 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 12:52:13" (1/1) ...
[2023-12-23 00:52:13,523 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 00:52:13,641 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_fillercodesize_ps-cn-100_file-97.i[916,929]
[2023-12-23 00:52:13,698 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 00:52:13,712 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 00:52:13,720 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_fillercodesize_ps-cn-100_file-97.i[916,929]
[2023-12-23 00:52:13,787 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 00:52:13,811 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 00:52:13,811 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:52:13 WrapperNode
[2023-12-23 00:52:13,811 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 00:52:13,812 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 00:52:13,812 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 00:52:13,812 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 00:52:13,817 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:52:13" (1/1) ...
[2023-12-23 00:52:13,827 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:52:13" (1/1) ...
[2023-12-23 00:52:13,855 INFO  L138                Inliner]: procedures = 27, calls = 71, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 303
[2023-12-23 00:52:13,856 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 00:52:13,856 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 00:52:13,856 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 00:52:13,856 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 00:52:13,887 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:52:13" (1/1) ...
[2023-12-23 00:52:13,887 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:52:13" (1/1) ...
[2023-12-23 00:52:13,892 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:52:13" (1/1) ...
[2023-12-23 00:52:13,904 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 00:52:13,904 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:52:13" (1/1) ...
[2023-12-23 00:52:13,904 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:52:13" (1/1) ...
[2023-12-23 00:52:13,926 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:52:13" (1/1) ...
[2023-12-23 00:52:13,929 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:52:13" (1/1) ...
[2023-12-23 00:52:13,931 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:52:13" (1/1) ...
[2023-12-23 00:52:13,953 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:52:13" (1/1) ...
[2023-12-23 00:52:13,957 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 00:52:13,958 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 00:52:13,958 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 00:52:13,958 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 00:52:13,959 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:52:13" (1/1) ...
[2023-12-23 00:52:13,971 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 00:52:13,982 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 00:52:14,010 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 00:52:14,032 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 00:52:14,033 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 00:52:14,033 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 00:52:14,033 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 00:52:14,034 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 00:52:14,035 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 00:52:14,025 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 00:52:14,139 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 00:52:14,142 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 00:52:19,025 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 00:52:19,083 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 00:52:19,083 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 00:52:19,083 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 12:52:19 BoogieIcfgContainer
[2023-12-23 00:52:19,083 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 00:52:19,085 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 00:52:19,085 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 00:52:19,087 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 00:52:19,087 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 12:52:13" (1/3) ...
[2023-12-23 00:52:19,088 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6854bf0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 12:52:19, skipping insertion in model container
[2023-12-23 00:52:19,088 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:52:13" (2/3) ...
[2023-12-23 00:52:19,088 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6854bf0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 12:52:19, skipping insertion in model container
[2023-12-23 00:52:19,088 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 12:52:19" (3/3) ...
[2023-12-23 00:52:19,089 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-100_file-97.i
[2023-12-23 00:52:19,101 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 00:52:19,101 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 00:52:19,142 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 00:52:19,146 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;@6719a67f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 00:52:19,147 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 00:52:19,150 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 137 states, 76 states have (on average 1.4605263157894737) internal successors, (111), 77 states have internal predecessors, (111), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58)
[2023-12-23 00:52:19,165 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 348
[2023-12-23 00:52:19,166 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 00:52:19,166 INFO  L195           NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:19,167 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 00:52:19,170 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 00:52:19,171 INFO  L85        PathProgramCache]: Analyzing trace with hash 1816140342, now seen corresponding path program 1 times
[2023-12-23 00:52:19,180 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 00:52:19,181 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1562972926]
[2023-12-23 00:52:19,181 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 00:52:19,181 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 00:52:19,182 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 00:52:19,184 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 00:52:19,196 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 00:52:19,592 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 00:52:19,614 INFO  L262         TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 00:52:19,631 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 00:52:19,710 INFO  L134       CoverageAnalysis]: Checked inductivity of 6612 backedges. 1994 proven. 0 refuted. 0 times theorem prover too weak. 4618 trivial. 0 not checked.
[2023-12-23 00:52:19,710 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 00:52:19,711 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 00:52:19,711 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1562972926]
[2023-12-23 00:52:19,711 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1562972926] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 00:52:19,711 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 00:52:19,711 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 00:52:19,713 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462614823]
[2023-12-23 00:52:19,713 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 00:52:19,719 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 00:52:19,719 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 00:52:19,747 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 00:52:19,747 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 00:52:19,750 INFO  L87              Difference]: Start difference. First operand  has 137 states, 76 states have (on average 1.4605263157894737) internal successors, (111), 77 states have internal predecessors, (111), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) Second operand  has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58)
[2023-12-23 00:52:19,803 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 00:52:19,804 INFO  L93              Difference]: Finished difference Result 271 states and 510 transitions.
[2023-12-23 00:52:19,806 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 00:52:19,807 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) Word has length 347
[2023-12-23 00:52:19,808 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 00:52:19,815 INFO  L225             Difference]: With dead ends: 271
[2023-12-23 00:52:19,815 INFO  L226             Difference]: Without dead ends: 135
[2023-12-23 00:52:19,820 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 346 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 00:52:19,822 INFO  L413           NwaCegarLoop]: 219 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, 219 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 00:52:19,823 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 219 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-23 00:52:19,833 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 135 states.
[2023-12-23 00:52:19,859 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135.
[2023-12-23 00:52:19,860 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 135 states, 75 states have (on average 1.4133333333333333) internal successors, (106), 75 states have internal predecessors, (106), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58)
[2023-12-23 00:52:19,862 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 222 transitions.
[2023-12-23 00:52:19,863 INFO  L78                 Accepts]: Start accepts. Automaton has 135 states and 222 transitions. Word has length 347
[2023-12-23 00:52:19,863 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 00:52:19,863 INFO  L495      AbstractCegarLoop]: Abstraction has 135 states and 222 transitions.
[2023-12-23 00:52:19,864 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58)
[2023-12-23 00:52:19,864 INFO  L276                IsEmpty]: Start isEmpty. Operand 135 states and 222 transitions.
[2023-12-23 00:52:19,869 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 348
[2023-12-23 00:52:19,869 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 00:52:19,870 INFO  L195           NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:19,885 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 00:52:20,085 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 00:52:20,086 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 00:52:20,086 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 00:52:20,087 INFO  L85        PathProgramCache]: Analyzing trace with hash -1306240650, now seen corresponding path program 1 times
[2023-12-23 00:52:20,088 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 00:52:20,088 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [348736960]
[2023-12-23 00:52:20,088 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 00:52:20,088 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 00:52:20,089 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 00:52:20,090 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 00:52:20,091 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 00:52:20,608 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 00:52:20,632 INFO  L262         TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 00:52:20,663 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 00:52:20,721 INFO  L134       CoverageAnalysis]: Checked inductivity of 6612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked.
[2023-12-23 00:52:20,721 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 00:52:20,721 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 00:52:20,722 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [348736960]
[2023-12-23 00:52:20,722 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [348736960] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 00:52:20,722 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 00:52:20,722 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-23 00:52:20,722 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926802380]
[2023-12-23 00:52:20,722 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 00:52:20,725 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 00:52:20,725 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 00:52:20,726 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 00:52:20,726 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 00:52:20,726 INFO  L87              Difference]: Start difference. First operand 135 states and 222 transitions. Second operand  has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58)
[2023-12-23 00:52:20,898 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 00:52:20,898 INFO  L93              Difference]: Finished difference Result 332 states and 543 transitions.
[2023-12-23 00:52:20,900 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 00:52:20,900 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) Word has length 347
[2023-12-23 00:52:20,903 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 00:52:20,905 INFO  L225             Difference]: With dead ends: 332
[2023-12-23 00:52:20,905 INFO  L226             Difference]: Without dead ends: 198
[2023-12-23 00:52:20,906 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 00:52:20,907 INFO  L413           NwaCegarLoop]: 259 mSDtfsCounter, 102 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-23 00:52:20,907 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 457 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-23 00:52:20,908 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 198 states.
[2023-12-23 00:52:20,951 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 195.
[2023-12-23 00:52:20,951 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 195 states, 118 states have (on average 1.4406779661016949) internal successors, (170), 119 states have internal predecessors, (170), 74 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74)
[2023-12-23 00:52:20,953 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 318 transitions.
[2023-12-23 00:52:20,953 INFO  L78                 Accepts]: Start accepts. Automaton has 195 states and 318 transitions. Word has length 347
[2023-12-23 00:52:20,954 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 00:52:20,954 INFO  L495      AbstractCegarLoop]: Abstraction has 195 states and 318 transitions.
[2023-12-23 00:52:20,954 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58)
[2023-12-23 00:52:20,955 INFO  L276                IsEmpty]: Start isEmpty. Operand 195 states and 318 transitions.
[2023-12-23 00:52:20,957 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 348
[2023-12-23 00:52:20,957 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 00:52:20,957 INFO  L195           NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:20,972 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 00:52:21,158 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 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 00:52:21,160 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 00:52:21,160 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 00:52:21,160 INFO  L85        PathProgramCache]: Analyzing trace with hash 1400378744, now seen corresponding path program 1 times
[2023-12-23 00:52:21,161 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 00:52:21,161 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1260662328]
[2023-12-23 00:52:21,161 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 00:52:21,161 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 00:52:21,162 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 00:52:21,167 INFO  L229       MonitoredProcess]: Starting monitored process 4 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 00:52:21,170 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 (4)] Waiting until timeout for monitored process
[2023-12-23 00:52:21,557 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 00:52:21,576 INFO  L262         TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-23 00:52:21,583 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 00:52:22,533 INFO  L134       CoverageAnalysis]: Checked inductivity of 6612 backedges. 2607 proven. 126 refuted. 0 times theorem prover too weak. 3879 trivial. 0 not checked.
[2023-12-23 00:52:22,533 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 00:52:23,150 INFO  L134       CoverageAnalysis]: Checked inductivity of 6612 backedges. 45 proven. 126 refuted. 0 times theorem prover too weak. 6441 trivial. 0 not checked.
[2023-12-23 00:52:23,150 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 00:52:23,154 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1260662328]
[2023-12-23 00:52:23,155 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1260662328] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 00:52:23,157 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 00:52:23,159 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8
[2023-12-23 00:52:23,159 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752744156]
[2023-12-23 00:52:23,159 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 00:52:23,160 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-23 00:52:23,160 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 00:52:23,161 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-23 00:52:23,161 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2023-12-23 00:52:23,162 INFO  L87              Difference]: Start difference. First operand 195 states and 318 transitions. Second operand  has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 2 states have call successors, (100), 2 states have call predecessors, (100), 4 states have return successors, (101), 2 states have call predecessors, (101), 2 states have call successors, (101)
[2023-12-23 00:52:24,199 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 00:52:24,199 INFO  L93              Difference]: Finished difference Result 401 states and 641 transitions.
[2023-12-23 00:52:24,200 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-23 00:52:24,200 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 2 states have call successors, (100), 2 states have call predecessors, (100), 4 states have return successors, (101), 2 states have call predecessors, (101), 2 states have call successors, (101) Word has length 347
[2023-12-23 00:52:24,201 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 00:52:24,203 INFO  L225             Difference]: With dead ends: 401
[2023-12-23 00:52:24,203 INFO  L226             Difference]: Without dead ends: 207
[2023-12-23 00:52:24,204 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 700 GetRequests, 686 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210
[2023-12-23 00:52:24,205 INFO  L413           NwaCegarLoop]: 146 mSDtfsCounter, 227 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2023-12-23 00:52:24,205 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 318 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2023-12-23 00:52:24,206 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 207 states.
[2023-12-23 00:52:24,218 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 192.
[2023-12-23 00:52:24,219 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 192 states, 116 states have (on average 1.3620689655172413) internal successors, (158), 117 states have internal predecessors, (158), 72 states have call successors, (72), 3 states have call predecessors, (72), 3 states have return successors, (72), 71 states have call predecessors, (72), 72 states have call successors, (72)
[2023-12-23 00:52:24,220 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 302 transitions.
[2023-12-23 00:52:24,220 INFO  L78                 Accepts]: Start accepts. Automaton has 192 states and 302 transitions. Word has length 347
[2023-12-23 00:52:24,221 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 00:52:24,221 INFO  L495      AbstractCegarLoop]: Abstraction has 192 states and 302 transitions.
[2023-12-23 00:52:24,221 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 2 states have call successors, (100), 2 states have call predecessors, (100), 4 states have return successors, (101), 2 states have call predecessors, (101), 2 states have call successors, (101)
[2023-12-23 00:52:24,221 INFO  L276                IsEmpty]: Start isEmpty. Operand 192 states and 302 transitions.
[2023-12-23 00:52:24,223 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 348
[2023-12-23 00:52:24,223 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 00:52:24,224 INFO  L195           NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:24,236 INFO  L552       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 (4)] Ended with exit code 0
[2023-12-23 00:52:24,435 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /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 00:52:24,436 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 00:52:24,440 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 00:52:24,441 INFO  L85        PathProgramCache]: Analyzing trace with hash 1007351734, now seen corresponding path program 1 times
[2023-12-23 00:52:24,441 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 00:52:24,441 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [950147345]
[2023-12-23 00:52:24,441 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 00:52:24,441 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 00:52:24,442 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 00:52:24,443 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 00:52:24,469 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 00:52:24,799 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 00:52:24,818 INFO  L262         TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-23 00:52:24,823 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 00:52:26,149 INFO  L134       CoverageAnalysis]: Checked inductivity of 6612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked.
[2023-12-23 00:52:26,149 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 00:52:26,149 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 00:52:26,150 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [950147345]
[2023-12-23 00:52:26,150 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [950147345] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 00:52:26,150 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 00:52:26,150 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-23 00:52:26,150 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468931342]
[2023-12-23 00:52:26,150 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 00:52:26,150 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-23 00:52:26,151 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 00:52:26,151 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-23 00:52:26,151 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-23 00:52:26,151 INFO  L87              Difference]: Start difference. First operand 192 states and 302 transitions. Second operand  has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58)
[2023-12-23 00:52:26,932 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 00:52:26,932 INFO  L93              Difference]: Finished difference Result 520 states and 828 transitions.
[2023-12-23 00:52:26,932 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-23 00:52:26,933 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) Word has length 347
[2023-12-23 00:52:26,933 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 00:52:26,935 INFO  L225             Difference]: With dead ends: 520
[2023-12-23 00:52:26,935 INFO  L226             Difference]: Without dead ends: 329
[2023-12-23 00:52:26,936 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-23 00:52:26,937 INFO  L413           NwaCegarLoop]: 398 mSDtfsCounter, 248 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2023-12-23 00:52:26,937 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 867 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2023-12-23 00:52:26,937 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 329 states.
[2023-12-23 00:52:26,959 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 192.
[2023-12-23 00:52:26,960 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 192 states, 116 states have (on average 1.3448275862068966) internal successors, (156), 117 states have internal predecessors, (156), 72 states have call successors, (72), 3 states have call predecessors, (72), 3 states have return successors, (72), 71 states have call predecessors, (72), 72 states have call successors, (72)
[2023-12-23 00:52:26,961 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 300 transitions.
[2023-12-23 00:52:26,961 INFO  L78                 Accepts]: Start accepts. Automaton has 192 states and 300 transitions. Word has length 347
[2023-12-23 00:52:26,962 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 00:52:26,962 INFO  L495      AbstractCegarLoop]: Abstraction has 192 states and 300 transitions.
[2023-12-23 00:52:26,962 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58)
[2023-12-23 00:52:26,962 INFO  L276                IsEmpty]: Start isEmpty. Operand 192 states and 300 transitions.
[2023-12-23 00:52:26,964 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 349
[2023-12-23 00:52:26,964 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 00:52:26,964 INFO  L195           NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:26,976 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 00:52:27,176 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
[2023-12-23 00:52:27,177 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 00:52:27,177 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 00:52:27,177 INFO  L85        PathProgramCache]: Analyzing trace with hash 1472406100, now seen corresponding path program 1 times
[2023-12-23 00:52:27,178 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 00:52:27,178 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [894781947]
[2023-12-23 00:52:27,178 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 00:52:27,179 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 00:52:27,179 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 00:52:27,181 INFO  L229       MonitoredProcess]: Starting monitored process 6 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 00:52:27,182 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 (6)] Waiting until timeout for monitored process
[2023-12-23 00:52:27,556 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 00:52:27,576 INFO  L262         TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-23 00:52:27,581 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 00:52:29,719 INFO  L134       CoverageAnalysis]: Checked inductivity of 6612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked.
[2023-12-23 00:52:29,719 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 00:52:29,719 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 00:52:29,719 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [894781947]
[2023-12-23 00:52:29,719 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [894781947] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 00:52:29,719 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 00:52:29,719 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-23 00:52:29,719 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689140589]
[2023-12-23 00:52:29,720 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 00:52:29,720 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-23 00:52:29,720 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 00:52:29,721 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-23 00:52:29,721 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-23 00:52:29,721 INFO  L87              Difference]: Start difference. First operand 192 states and 300 transitions. Second operand  has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58)
[2023-12-23 00:52:30,278 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 00:52:30,278 INFO  L93              Difference]: Finished difference Result 584 states and 909 transitions.
[2023-12-23 00:52:30,279 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-23 00:52:30,280 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) Word has length 348
[2023-12-23 00:52:30,281 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 00:52:30,284 INFO  L225             Difference]: With dead ends: 584
[2023-12-23 00:52:30,284 INFO  L226             Difference]: Without dead ends: 393
[2023-12-23 00:52:30,285 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 344 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2023-12-23 00:52:30,286 INFO  L413           NwaCegarLoop]: 209 mSDtfsCounter, 139 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2023-12-23 00:52:30,286 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 706 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2023-12-23 00:52:30,287 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 393 states.
[2023-12-23 00:52:30,347 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 381.
[2023-12-23 00:52:30,349 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 381 states, 230 states have (on average 1.3391304347826087) internal successors, (308), 232 states have internal predecessors, (308), 144 states have call successors, (144), 6 states have call predecessors, (144), 6 states have return successors, (144), 142 states have call predecessors, (144), 144 states have call successors, (144)
[2023-12-23 00:52:30,351 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 596 transitions.
[2023-12-23 00:52:30,352 INFO  L78                 Accepts]: Start accepts. Automaton has 381 states and 596 transitions. Word has length 348
[2023-12-23 00:52:30,354 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 00:52:30,356 INFO  L495      AbstractCegarLoop]: Abstraction has 381 states and 596 transitions.
[2023-12-23 00:52:30,357 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58)
[2023-12-23 00:52:30,358 INFO  L276                IsEmpty]: Start isEmpty. Operand 381 states and 596 transitions.
[2023-12-23 00:52:30,361 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 350
[2023-12-23 00:52:30,361 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 00:52:30,361 INFO  L195           NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:30,373 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 (6)] Forceful destruction successful, exit code 0
[2023-12-23 00:52:30,573 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /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 00:52:30,573 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 00:52:30,575 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 00:52:30,575 INFO  L85        PathProgramCache]: Analyzing trace with hash -1602477449, now seen corresponding path program 1 times
[2023-12-23 00:52:30,576 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 00:52:30,576 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1900224135]
[2023-12-23 00:52:30,576 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 00:52:30,576 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 00:52:30,576 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 00:52:30,577 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 00:52:30,579 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 00:52:31,260 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 00:52:31,286 INFO  L262         TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 33 conjunts are in the unsatisfiable core
[2023-12-23 00:52:31,300 INFO  L285         TraceCheckSpWp]: Computing forward predicates...