/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-25_file-85.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 04:09:49,780 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 04:09:49,851 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 04:09:49,855 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 04:09:49,855 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 04:09:49,876 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 04:09:49,877 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 04:09:49,877 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 04:09:49,877 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 04:09:49,884 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 04:09:49,884 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 04:09:49,884 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 04:09:49,885 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 04:09:49,885 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 04:09:49,885 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 04:09:49,885 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 04:09:49,885 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 04:09:49,885 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 04:09:49,885 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 04:09:49,886 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 04:09:49,886 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 04:09:49,886 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 04:09:49,886 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 04:09:49,886 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 04:09:49,886 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 04:09:49,887 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 04:09:49,887 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 04:09:49,887 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 04:09:49,887 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 04:09:49,887 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 04:09:49,888 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 04:09:49,888 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 04:09:49,888 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 04:09:49,888 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 04:09:49,888 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 04:09:49,888 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 04:09:49,889 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 04:09:49,889 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 04:09:49,889 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 04:09:49,889 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 04:09:49,889 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 04:09:49,889 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 04:09:49,890 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 04:09:49,890 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 04:09:49,890 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 04:09:49,890 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 04:09:49,890 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 04:09:50,077 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 04:09:50,092 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 04:09:50,095 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 04:09:50,096 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 04:09:50,096 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 04:09:50,097 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-85.i
[2023-12-23 04:09:51,059 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 04:09:51,221 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 04:09:51,222 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-85.i
[2023-12-23 04:09:51,237 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c631cc5c/074f7b1bde294986a75fb2bbd76a58dc/FLAGcb2b6b704
[2023-12-23 04:09:51,250 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c631cc5c/074f7b1bde294986a75fb2bbd76a58dc
[2023-12-23 04:09:51,252 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 04:09:51,252 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 04:09:51,255 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 04:09:51,255 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 04:09:51,258 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 04:09:51,258 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:09:51" (1/1) ...
[2023-12-23 04:09:51,259 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57a14bc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:09:51, skipping insertion in model container
[2023-12-23 04:09:51,259 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:09:51" (1/1) ...
[2023-12-23 04:09:51,291 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 04:09:51,390 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-25_file-85.i[915,928]
[2023-12-23 04:09:51,447 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 04:09:51,469 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 04:09:51,478 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-25_file-85.i[915,928]
[2023-12-23 04:09:51,503 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 04:09:51,514 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 04:09:51,514 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:09:51 WrapperNode
[2023-12-23 04:09:51,515 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 04:09:51,515 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 04:09:51,515 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 04:09:51,515 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 04:09:51,526 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:09:51" (1/1) ...
[2023-12-23 04:09:51,534 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:09:51" (1/1) ...
[2023-12-23 04:09:51,553 INFO  L138                Inliner]: procedures = 27, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 203
[2023-12-23 04:09:51,553 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 04:09:51,554 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 04:09:51,554 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 04:09:51,554 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 04:09:51,563 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:09:51" (1/1) ...
[2023-12-23 04:09:51,563 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:09:51" (1/1) ...
[2023-12-23 04:09:51,568 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:09:51" (1/1) ...
[2023-12-23 04:09:51,577 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 04:09:51,577 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:09:51" (1/1) ...
[2023-12-23 04:09:51,578 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:09:51" (1/1) ...
[2023-12-23 04:09:51,587 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:09:51" (1/1) ...
[2023-12-23 04:09:51,590 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:09:51" (1/1) ...
[2023-12-23 04:09:51,601 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:09:51" (1/1) ...
[2023-12-23 04:09:51,602 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:09:51" (1/1) ...
[2023-12-23 04:09:51,605 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 04:09:51,609 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 04:09:51,609 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 04:09:51,610 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 04:09:51,610 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:09:51" (1/1) ...
[2023-12-23 04:09:51,614 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 04:09:51,623 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 04:09:51,645 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 04:09:51,653 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 04:09:51,667 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 04:09:51,667 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 04:09:51,667 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 04:09:51,668 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 04:09:51,668 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 04:09:51,669 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 04:09:51,761 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 04:09:51,763 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 04:09:53,853 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 04:09:53,901 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 04:09:53,901 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 04:09:53,902 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:09:53 BoogieIcfgContainer
[2023-12-23 04:09:53,902 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 04:09:53,904 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 04:09:53,904 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 04:09:53,906 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 04:09:53,906 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 04:09:51" (1/3) ...
[2023-12-23 04:09:53,906 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1199590c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:09:53, skipping insertion in model container
[2023-12-23 04:09:53,906 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:09:51" (2/3) ...
[2023-12-23 04:09:53,907 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1199590c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:09:53, skipping insertion in model container
[2023-12-23 04:09:53,907 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:09:53" (3/3) ...
[2023-12-23 04:09:53,907 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-25_file-85.i
[2023-12-23 04:09:53,919 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 04:09:53,919 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 04:09:53,958 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 04:09:53,962 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;@70cd0d5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 04:09:53,962 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 04:09:53,966 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 86 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 50 states have internal predecessors, (70), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34)
[2023-12-23 04:09:53,982 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 209
[2023-12-23 04:09:53,982 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 04:09:53,983 INFO  L195           NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:09:53,983 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 04:09:53,987 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 04:09:53,987 INFO  L85        PathProgramCache]: Analyzing trace with hash 1750181207, now seen corresponding path program 1 times
[2023-12-23 04:09:53,996 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 04:09:53,997 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [893179269]
[2023-12-23 04:09:53,997 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 04:09:53,997 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 04:09:53,997 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 04:09:53,999 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 04:09:54,002 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 04:09:54,438 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 04:09:54,466 INFO  L262         TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 04:09:54,480 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 04:09:54,533 INFO  L134       CoverageAnalysis]: Checked inductivity of 2244 backedges. 530 proven. 0 refuted. 0 times theorem prover too weak. 1714 trivial. 0 not checked.
[2023-12-23 04:09:54,534 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 04:09:54,534 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 04:09:54,535 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [893179269]
[2023-12-23 04:09:54,535 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [893179269] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 04:09:54,535 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 04:09:54,535 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 04:09:54,537 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988368099]
[2023-12-23 04:09:54,537 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 04:09:54,541 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 04:09:54,542 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 04:09:54,564 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 04:09:54,565 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 04:09:54,567 INFO  L87              Difference]: Start difference. First operand  has 86 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 50 states have internal predecessors, (70), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand  has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34)
[2023-12-23 04:09:55,407 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 04:09:55,408 INFO  L93              Difference]: Finished difference Result 169 states and 308 transitions.
[2023-12-23 04:09:55,443 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 04:09:55,444 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 208
[2023-12-23 04:09:55,445 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 04:09:55,450 INFO  L225             Difference]: With dead ends: 169
[2023-12-23 04:09:55,450 INFO  L226             Difference]: Without dead ends: 84
[2023-12-23 04:09:55,453 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 207 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 04:09:55,457 INFO  L413           NwaCegarLoop]: 130 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2023-12-23 04:09:55,457 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2023-12-23 04:09:55,468 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 84 states.
[2023-12-23 04:09:55,486 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84.
[2023-12-23 04:09:55,487 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 84 states, 48 states have (on average 1.3541666666666667) internal successors, (65), 48 states have internal predecessors, (65), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34)
[2023-12-23 04:09:55,488 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 133 transitions.
[2023-12-23 04:09:55,489 INFO  L78                 Accepts]: Start accepts. Automaton has 84 states and 133 transitions. Word has length 208
[2023-12-23 04:09:55,489 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 04:09:55,489 INFO  L495      AbstractCegarLoop]: Abstraction has 84 states and 133 transitions.
[2023-12-23 04:09:55,490 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34)
[2023-12-23 04:09:55,490 INFO  L276                IsEmpty]: Start isEmpty. Operand 84 states and 133 transitions.
[2023-12-23 04:09:55,493 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 209
[2023-12-23 04:09:55,493 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 04:09:55,493 INFO  L195           NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:09:55,508 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 04:09:55,707 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 04:09:55,707 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 04:09:55,708 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 04:09:55,708 INFO  L85        PathProgramCache]: Analyzing trace with hash -1941994013, now seen corresponding path program 1 times
[2023-12-23 04:09:55,709 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 04:09:55,709 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1964045706]
[2023-12-23 04:09:55,709 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 04:09:55,709 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 04:09:55,709 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 04:09:55,710 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 04:09:55,712 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 04:09:56,202 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 04:09:56,225 INFO  L262         TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-23 04:09:56,230 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 04:09:57,281 INFO  L134       CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked.
[2023-12-23 04:09:57,282 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 04:09:57,282 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 04:09:57,282 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1964045706]
[2023-12-23 04:09:57,282 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1964045706] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 04:09:57,282 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 04:09:57,283 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-23 04:09:57,283 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68345651]
[2023-12-23 04:09:57,283 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 04:09:57,284 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-23 04:09:57,284 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 04:09:57,285 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-23 04:09:57,285 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-23 04:09:57,285 INFO  L87              Difference]: Start difference. First operand 84 states and 133 transitions. Second operand  has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34)
[2023-12-23 04:09:58,983 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 04:09:58,983 INFO  L93              Difference]: Finished difference Result 167 states and 265 transitions.
[2023-12-23 04:09:59,013 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-23 04:09:59,013 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 208
[2023-12-23 04:09:59,015 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 04:09:59,016 INFO  L225             Difference]: With dead ends: 167
[2023-12-23 04:09:59,016 INFO  L226             Difference]: Without dead ends: 84
[2023-12-23 04:09:59,017 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 204 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 04:09:59,018 INFO  L413           NwaCegarLoop]: 125 mSDtfsCounter, 97 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2023-12-23 04:09:59,018 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 164 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time]
[2023-12-23 04:09:59,019 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 84 states.
[2023-12-23 04:09:59,030 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84.
[2023-12-23 04:09:59,030 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 84 states, 48 states have (on average 1.3333333333333333) internal successors, (64), 48 states have internal predecessors, (64), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34)
[2023-12-23 04:09:59,031 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 132 transitions.
[2023-12-23 04:09:59,032 INFO  L78                 Accepts]: Start accepts. Automaton has 84 states and 132 transitions. Word has length 208
[2023-12-23 04:09:59,033 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 04:09:59,033 INFO  L495      AbstractCegarLoop]: Abstraction has 84 states and 132 transitions.
[2023-12-23 04:09:59,034 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34)
[2023-12-23 04:09:59,034 INFO  L276                IsEmpty]: Start isEmpty. Operand 84 states and 132 transitions.
[2023-12-23 04:09:59,036 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 210
[2023-12-23 04:09:59,036 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 04:09:59,037 INFO  L195           NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:09:59,068 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 04:09:59,242 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 04:09:59,243 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 04:09:59,243 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 04:09:59,243 INFO  L85        PathProgramCache]: Analyzing trace with hash -544011873, now seen corresponding path program 1 times
[2023-12-23 04:09:59,244 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 04:09:59,244 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [573728134]
[2023-12-23 04:09:59,244 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 04:09:59,244 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 04:09:59,244 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 04:09:59,245 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 04:09:59,263 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 04:09:59,612 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 04:09:59,637 INFO  L262         TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-12-23 04:09:59,642 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 04:10:01,488 INFO  L134       CoverageAnalysis]: Checked inductivity of 2244 backedges. 1065 proven. 63 refuted. 0 times theorem prover too weak. 1116 trivial. 0 not checked.
[2023-12-23 04:10:01,488 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 04:10:02,128 INFO  L134       CoverageAnalysis]: Checked inductivity of 2244 backedges. 36 proven. 63 refuted. 0 times theorem prover too weak. 2145 trivial. 0 not checked.
[2023-12-23 04:10:02,128 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 04:10:02,128 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [573728134]
[2023-12-23 04:10:02,128 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [573728134] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 04:10:02,128 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 04:10:02,128 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 14
[2023-12-23 04:10:02,129 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547237868]
[2023-12-23 04:10:02,129 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 04:10:02,129 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2023-12-23 04:10:02,129 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 04:10:02,130 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2023-12-23 04:10:02,130 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182
[2023-12-23 04:10:02,131 INFO  L87              Difference]: Start difference. First operand 84 states and 132 transitions. Second operand  has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 4 states have call successors, (68), 3 states have call predecessors, (68), 5 states have return successors, (68), 4 states have call predecessors, (68), 4 states have call successors, (68)
[2023-12-23 04:10:07,925 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 04:10:07,925 INFO  L93              Difference]: Finished difference Result 335 states and 518 transitions.
[2023-12-23 04:10:07,926 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2023-12-23 04:10:07,926 INFO  L78                 Accepts]: Start accepts. Automaton has  has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 4 states have call successors, (68), 3 states have call predecessors, (68), 5 states have return successors, (68), 4 states have call predecessors, (68), 4 states have call successors, (68) Word has length 209
[2023-12-23 04:10:07,927 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 04:10:07,929 INFO  L225             Difference]: With dead ends: 335
[2023-12-23 04:10:07,929 INFO  L226             Difference]: Without dead ends: 252
[2023-12-23 04:10:07,930 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 405 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=228, Invalid=584, Unknown=0, NotChecked=0, Total=812
[2023-12-23 04:10:07,931 INFO  L413           NwaCegarLoop]: 115 mSDtfsCounter, 325 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 932 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time
[2023-12-23 04:10:07,931 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 807 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 932 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time]
[2023-12-23 04:10:07,933 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 252 states.
[2023-12-23 04:10:07,985 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 193.
[2023-12-23 04:10:07,986 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 193 states, 109 states have (on average 1.2935779816513762) internal successors, (141), 110 states have internal predecessors, (141), 79 states have call successors, (79), 4 states have call predecessors, (79), 4 states have return successors, (79), 78 states have call predecessors, (79), 79 states have call successors, (79)
[2023-12-23 04:10:07,989 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 299 transitions.
[2023-12-23 04:10:07,989 INFO  L78                 Accepts]: Start accepts. Automaton has 193 states and 299 transitions. Word has length 209
[2023-12-23 04:10:07,990 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 04:10:07,991 INFO  L495      AbstractCegarLoop]: Abstraction has 193 states and 299 transitions.
[2023-12-23 04:10:07,991 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 4 states have call successors, (68), 3 states have call predecessors, (68), 5 states have return successors, (68), 4 states have call predecessors, (68), 4 states have call successors, (68)
[2023-12-23 04:10:07,991 INFO  L276                IsEmpty]: Start isEmpty. Operand 193 states and 299 transitions.
[2023-12-23 04:10:07,996 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 210
[2023-12-23 04:10:07,997 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 04:10:07,997 INFO  L195           NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:10:08,012 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 (4)] Forceful destruction successful, exit code 0
[2023-12-23 04:10:08,208 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 04:10:08,209 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 04:10:08,209 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 04:10:08,210 INFO  L85        PathProgramCache]: Analyzing trace with hash -1296100197, now seen corresponding path program 1 times
[2023-12-23 04:10:08,210 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 04:10:08,210 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1432638027]
[2023-12-23 04:10:08,210 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 04:10:08,211 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 04:10:08,211 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 04:10:08,213 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 04:10:08,217 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 04:10:08,579 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 04:10:08,600 INFO  L262         TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 27 conjunts are in the unsatisfiable core
[2023-12-23 04:10:08,622 INFO  L285         TraceCheckSpWp]: Computing forward predicates...