/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-67.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 15:34:55,832 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 15:34:55,892 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 15:34:55,897 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 15:34:55,897 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 15:34:55,927 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 15:34:55,927 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 15:34:55,928 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 15:34:55,928 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 15:34:55,931 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 15:34:55,931 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 15:34:55,932 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 15:34:55,932 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 15:34:55,933 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 15:34:55,933 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 15:34:55,934 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 15:34:55,934 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 15:34:55,934 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 15:34:55,934 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 15:34:55,935 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 15:34:55,935 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 15:34:55,935 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 15:34:55,935 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 15:34:55,935 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 15:34:55,936 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 15:34:55,936 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 15:34:55,936 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 15:34:55,936 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 15:34:55,936 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 15:34:55,936 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 15:34:55,937 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 15:34:55,937 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 15:34:55,937 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 15:34:55,937 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 15:34:55,938 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 15:34:55,938 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 15:34:55,938 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 15:34:55,938 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 15:34:55,938 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 15:34:55,938 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 15:34:55,938 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 15:34:55,938 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 15:34:55,939 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 15:34:55,939 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 15:34:55,939 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 15:34:55,939 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 15:34:55,939 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 15:34:56,144 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 15:34:56,166 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 15:34:56,168 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 15:34:56,169 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 15:34:56,169 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 15:34:56,170 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-67.i
[2023-12-23 15:34:57,127 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 15:34:57,311 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 15:34:57,311 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-67.i
[2023-12-23 15:34:57,318 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e26b18ca/77e1c2e25bbc43db816fbe71f25a01f9/FLAG2538d739e
[2023-12-23 15:34:57,331 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e26b18ca/77e1c2e25bbc43db816fbe71f25a01f9
[2023-12-23 15:34:57,333 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 15:34:57,335 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 15:34:57,337 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 15:34:57,337 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 15:34:57,341 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 15:34:57,341 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 03:34:57" (1/1) ...
[2023-12-23 15:34:57,342 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74463be3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:34:57, skipping insertion in model container
[2023-12-23 15:34:57,342 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 03:34:57" (1/1) ...
[2023-12-23 15:34:57,372 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 15:34:57,497 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-67.i[919,932]
[2023-12-23 15:34:57,562 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 15:34:57,573 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 15:34:57,582 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-67.i[919,932]
[2023-12-23 15:34:57,611 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 15:34:57,628 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 15:34:57,628 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:34:57 WrapperNode
[2023-12-23 15:34:57,628 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 15:34:57,629 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 15:34:57,629 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 15:34:57,629 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 15:34:57,634 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:34:57" (1/1) ...
[2023-12-23 15:34:57,645 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:34:57" (1/1) ...
[2023-12-23 15:34:57,670 INFO  L138                Inliner]: procedures = 27, calls = 63, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 272
[2023-12-23 15:34:57,671 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 15:34:57,671 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 15:34:57,671 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 15:34:57,671 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 15:34:57,679 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:34:57" (1/1) ...
[2023-12-23 15:34:57,679 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:34:57" (1/1) ...
[2023-12-23 15:34:57,692 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:34:57" (1/1) ...
[2023-12-23 15:34:57,702 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 15:34:57,703 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:34:57" (1/1) ...
[2023-12-23 15:34:57,703 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:34:57" (1/1) ...
[2023-12-23 15:34:57,716 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:34:57" (1/1) ...
[2023-12-23 15:34:57,721 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:34:57" (1/1) ...
[2023-12-23 15:34:57,736 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:34:57" (1/1) ...
[2023-12-23 15:34:57,737 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:34:57" (1/1) ...
[2023-12-23 15:34:57,741 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 15:34:57,741 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 15:34:57,741 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 15:34:57,741 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 15:34:57,742 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:34:57" (1/1) ...
[2023-12-23 15:34:57,760 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 15:34:57,776 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 15:34:57,787 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 15:34:57,808 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 15:34:57,813 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 15:34:57,813 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 15:34:57,813 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 15:34:57,814 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 15:34:57,814 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 15:34:57,815 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 15:34:57,914 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 15:34:57,915 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 15:34:59,805 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 15:34:59,851 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 15:34:59,851 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 15:34:59,851 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 03:34:59 BoogieIcfgContainer
[2023-12-23 15:34:59,851 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 15:34:59,853 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 15:34:59,853 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 15:34:59,855 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 15:34:59,855 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 03:34:57" (1/3) ...
[2023-12-23 15:34:59,855 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b93d3ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 03:34:59, skipping insertion in model container
[2023-12-23 15:34:59,855 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:34:57" (2/3) ...
[2023-12-23 15:34:59,856 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b93d3ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 03:34:59, skipping insertion in model container
[2023-12-23 15:34:59,856 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 03:34:59" (3/3) ...
[2023-12-23 15:34:59,857 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-cn_file-67.i
[2023-12-23 15:34:59,869 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 15:34:59,869 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 15:34:59,906 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 15:34:59,910 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;@608019ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 15:34:59,911 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 15:34:59,919 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 117 states, 64 states have (on average 1.40625) internal successors, (90), 65 states have internal predecessors, (90), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50)
[2023-12-23 15:34:59,932 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 297
[2023-12-23 15:34:59,933 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 15:34:59,933 INFO  L195           NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:34:59,934 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 15:34:59,937 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 15:34:59,938 INFO  L85        PathProgramCache]: Analyzing trace with hash 897856037, now seen corresponding path program 1 times
[2023-12-23 15:34:59,947 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 15:34:59,947 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [558059645]
[2023-12-23 15:34:59,948 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 15:34:59,948 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 15:34:59,948 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 15:34:59,950 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 15:34:59,953 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 15:35:00,368 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 15:35:00,391 INFO  L262         TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 15:35:00,401 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 15:35:00,476 INFO  L134       CoverageAnalysis]: Checked inductivity of 4900 backedges. 2330 proven. 0 refuted. 0 times theorem prover too weak. 2570 trivial. 0 not checked.
[2023-12-23 15:35:00,476 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 15:35:00,477 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 15:35:00,477 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [558059645]
[2023-12-23 15:35:00,478 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [558059645] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 15:35:00,478 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 15:35:00,478 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 15:35:00,479 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174860821]
[2023-12-23 15:35:00,479 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 15:35:00,483 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 15:35:00,483 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 15:35:00,504 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 15:35:00,505 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 15:35:00,508 INFO  L87              Difference]: Start difference. First operand  has 117 states, 64 states have (on average 1.40625) internal successors, (90), 65 states have internal predecessors, (90), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand  has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50)
[2023-12-23 15:35:01,390 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 15:35:01,391 INFO  L93              Difference]: Finished difference Result 231 states and 428 transitions.
[2023-12-23 15:35:01,416 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 15:35:01,418 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 296
[2023-12-23 15:35:01,418 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 15:35:01,424 INFO  L225             Difference]: With dead ends: 231
[2023-12-23 15:35:01,424 INFO  L226             Difference]: Without dead ends: 115
[2023-12-23 15:35:01,428 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 295 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 15:35:01,430 INFO  L413           NwaCegarLoop]: 182 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, 182 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 15:35:01,431 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 182 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2023-12-23 15:35:01,441 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 115 states.
[2023-12-23 15:35:01,463 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115.
[2023-12-23 15:35:01,464 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 115 states, 63 states have (on average 1.3492063492063493) internal successors, (85), 63 states have internal predecessors, (85), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50)
[2023-12-23 15:35:01,466 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 185 transitions.
[2023-12-23 15:35:01,467 INFO  L78                 Accepts]: Start accepts. Automaton has 115 states and 185 transitions. Word has length 296
[2023-12-23 15:35:01,467 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 15:35:01,467 INFO  L495      AbstractCegarLoop]: Abstraction has 115 states and 185 transitions.
[2023-12-23 15:35:01,467 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50)
[2023-12-23 15:35:01,467 INFO  L276                IsEmpty]: Start isEmpty. Operand 115 states and 185 transitions.
[2023-12-23 15:35:01,474 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 297
[2023-12-23 15:35:01,474 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 15:35:01,475 INFO  L195           NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:35:01,497 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 (2)] Ended with exit code 0
[2023-12-23 15:35:01,686 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 15:35:01,686 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 15:35:01,687 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 15:35:01,687 INFO  L85        PathProgramCache]: Analyzing trace with hash -2129884195, now seen corresponding path program 1 times
[2023-12-23 15:35:01,688 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 15:35:01,688 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [90984980]
[2023-12-23 15:35:01,688 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 15:35:01,688 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 15:35:01,689 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 15:35:01,689 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 15:35:01,691 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 15:35:02,080 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 15:35:02,102 INFO  L262         TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-23 15:35:02,109 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 15:35:02,924 INFO  L134       CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked.
[2023-12-23 15:35:02,924 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 15:35:02,925 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 15:35:02,925 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [90984980]
[2023-12-23 15:35:02,925 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [90984980] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 15:35:02,925 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 15:35:02,925 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-23 15:35:02,925 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091452293]
[2023-12-23 15:35:02,925 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 15:35:02,927 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-23 15:35:02,927 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 15:35:02,928 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-23 15:35:02,928 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-23 15:35:02,928 INFO  L87              Difference]: Start difference. First operand 115 states and 185 transitions. Second operand  has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50)
[2023-12-23 15:35:05,495 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 15:35:05,496 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 15:35:05,496 INFO  L93              Difference]: Finished difference Result 344 states and 554 transitions.
[2023-12-23 15:35:05,521 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-23 15:35:05,521 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 296
[2023-12-23 15:35:05,522 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 15:35:05,524 INFO  L225             Difference]: With dead ends: 344
[2023-12-23 15:35:05,525 INFO  L226             Difference]: Without dead ends: 230
[2023-12-23 15:35:05,526 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-23 15:35:05,527 INFO  L413           NwaCegarLoop]: 179 mSDtfsCounter, 109 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time
[2023-12-23 15:35:05,527 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 535 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time]
[2023-12-23 15:35:05,528 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 230 states.
[2023-12-23 15:35:05,560 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 217.
[2023-12-23 15:35:05,561 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 217 states, 114 states have (on average 1.3070175438596492) internal successors, (149), 114 states have internal predecessors, (149), 100 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100)
[2023-12-23 15:35:05,563 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 349 transitions.
[2023-12-23 15:35:05,563 INFO  L78                 Accepts]: Start accepts. Automaton has 217 states and 349 transitions. Word has length 296
[2023-12-23 15:35:05,564 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 15:35:05,564 INFO  L495      AbstractCegarLoop]: Abstraction has 217 states and 349 transitions.
[2023-12-23 15:35:05,564 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50)
[2023-12-23 15:35:05,564 INFO  L276                IsEmpty]: Start isEmpty. Operand 217 states and 349 transitions.
[2023-12-23 15:35:05,581 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 299
[2023-12-23 15:35:05,581 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 15:35:05,581 INFO  L195           NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:35:05,595 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 15:35:05,793 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 15:35:05,793 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 15:35:05,794 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 15:35:05,794 INFO  L85        PathProgramCache]: Analyzing trace with hash -1858408973, now seen corresponding path program 1 times
[2023-12-23 15:35:05,795 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 15:35:05,795 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [35425541]
[2023-12-23 15:35:05,795 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 15:35:05,795 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 15:35:05,795 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 15:35:05,796 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 15:35:05,798 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 15:35:06,167 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 15:35:06,190 INFO  L262         TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 15:35:06,195 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 15:35:06,917 INFO  L134       CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked.
[2023-12-23 15:35:06,918 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 15:35:06,918 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 15:35:06,918 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [35425541]
[2023-12-23 15:35:06,918 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [35425541] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 15:35:06,918 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 15:35:06,918 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 15:35:06,918 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733941701]
[2023-12-23 15:35:06,919 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 15:35:06,919 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 15:35:06,919 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 15:35:06,920 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 15:35:06,920 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 15:35:06,920 INFO  L87              Difference]: Start difference. First operand 217 states and 349 transitions. Second operand  has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50)
[2023-12-23 15:35:07,780 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 15:35:07,781 INFO  L93              Difference]: Finished difference Result 449 states and 722 transitions.
[2023-12-23 15:35:07,786 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 15:35:07,786 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 298
[2023-12-23 15:35:07,787 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 15:35:07,789 INFO  L225             Difference]: With dead ends: 449
[2023-12-23 15:35:07,789 INFO  L226             Difference]: Without dead ends: 335
[2023-12-23 15:35:07,790 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 296 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 15:35:07,790 INFO  L413           NwaCegarLoop]: 180 mSDtfsCounter, 37 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2023-12-23 15:35:07,791 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 357 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2023-12-23 15:35:07,792 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 335 states.
[2023-12-23 15:35:07,834 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 333.
[2023-12-23 15:35:07,835 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 333 states, 179 states have (on average 1.318435754189944) internal successors, (236), 179 states have internal predecessors, (236), 150 states have call successors, (150), 3 states have call predecessors, (150), 3 states have return successors, (150), 150 states have call predecessors, (150), 150 states have call successors, (150)
[2023-12-23 15:35:07,841 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 536 transitions.
[2023-12-23 15:35:07,841 INFO  L78                 Accepts]: Start accepts. Automaton has 333 states and 536 transitions. Word has length 298
[2023-12-23 15:35:07,842 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 15:35:07,842 INFO  L495      AbstractCegarLoop]: Abstraction has 333 states and 536 transitions.
[2023-12-23 15:35:07,843 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50)
[2023-12-23 15:35:07,843 INFO  L276                IsEmpty]: Start isEmpty. Operand 333 states and 536 transitions.
[2023-12-23 15:35:07,845 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 299
[2023-12-23 15:35:07,845 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 15:35:07,846 INFO  L195           NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:35:07,856 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 15:35:08,058 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 15:35:08,059 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 15:35:08,059 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 15:35:08,059 INFO  L85        PathProgramCache]: Analyzing trace with hash -1915667275, now seen corresponding path program 1 times
[2023-12-23 15:35:08,060 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 15:35:08,060 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [209911638]
[2023-12-23 15:35:08,060 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 15:35:08,060 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 15:35:08,060 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 15:35:08,061 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 15:35:08,064 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 15:35:08,431 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 15:35:08,454 INFO  L262         TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 25 conjunts are in the unsatisfiable core
[2023-12-23 15:35:08,462 INFO  L285         TraceCheckSpWp]: Computing forward predicates...