/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-ci_file-93.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 14:53:08,861 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 14:53:08,940 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 14:53:08,947 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 14:53:08,948 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 14:53:08,982 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 14:53:08,983 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 14:53:08,983 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 14:53:08,984 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 14:53:08,990 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 14:53:08,990 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 14:53:08,991 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 14:53:08,992 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 14:53:08,993 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 14:53:08,994 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 14:53:08,994 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 14:53:08,994 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 14:53:08,995 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 14:53:08,995 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 14:53:08,995 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 14:53:08,995 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 14:53:08,996 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 14:53:08,996 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 14:53:08,996 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 14:53:08,996 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 14:53:08,996 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 14:53:08,996 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 14:53:08,997 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 14:53:08,997 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 14:53:08,997 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 14:53:08,998 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 14:53:08,998 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 14:53:08,998 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 14:53:08,998 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 14:53:08,999 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 14:53:08,999 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 14:53:08,999 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 14:53:08,999 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 14:53:08,999 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 14:53:08,999 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 14:53:09,000 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 14:53:09,000 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 14:53:09,000 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 14:53:09,000 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 14:53:09,001 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 14:53:09,001 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 14:53:09,001 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 14:53:09,229 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 14:53:09,252 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 14:53:09,254 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 14:53:09,255 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 14:53:09,256 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 14:53:09,257 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-93.i
[2023-12-23 14:53:10,453 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 14:53:10,655 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 14:53:10,656 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-93.i
[2023-12-23 14:53:10,669 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/473f47263/56a1f3f4400a4793885b92bb10b06932/FLAGa196b4f9d
[2023-12-23 14:53:10,682 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/473f47263/56a1f3f4400a4793885b92bb10b06932
[2023-12-23 14:53:10,684 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 14:53:10,686 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 14:53:10,687 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 14:53:10,687 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 14:53:10,691 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 14:53:10,692 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 02:53:10" (1/1) ...
[2023-12-23 14:53:10,693 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36a2def8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:53:10, skipping insertion in model container
[2023-12-23 14:53:10,693 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 02:53:10" (1/1) ...
[2023-12-23 14:53:10,734 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 14:53:10,848 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-ci_file-93.i[919,932]
[2023-12-23 14:53:10,919 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 14:53:10,935 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 14:53:10,945 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-ci_file-93.i[919,932]
[2023-12-23 14:53:10,975 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 14:53:10,992 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 14:53:10,993 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:53:10 WrapperNode
[2023-12-23 14:53:10,993 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 14:53:10,994 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 14:53:10,994 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 14:53:10,994 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 14:53:11,000 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:53:10" (1/1) ...
[2023-12-23 14:53:11,018 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:53:10" (1/1) ...
[2023-12-23 14:53:11,053 INFO  L138                Inliner]: procedures = 27, calls = 51, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 222
[2023-12-23 14:53:11,054 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 14:53:11,055 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 14:53:11,055 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 14:53:11,055 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 14:53:11,074 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:53:10" (1/1) ...
[2023-12-23 14:53:11,075 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:53:10" (1/1) ...
[2023-12-23 14:53:11,090 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:53:10" (1/1) ...
[2023-12-23 14:53:11,117 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 14:53:11,117 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:53:10" (1/1) ...
[2023-12-23 14:53:11,118 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:53:10" (1/1) ...
[2023-12-23 14:53:11,128 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:53:10" (1/1) ...
[2023-12-23 14:53:11,132 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:53:10" (1/1) ...
[2023-12-23 14:53:11,134 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:53:10" (1/1) ...
[2023-12-23 14:53:11,136 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:53:10" (1/1) ...
[2023-12-23 14:53:11,140 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 14:53:11,141 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 14:53:11,141 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 14:53:11,141 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 14:53:11,142 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:53:10" (1/1) ...
[2023-12-23 14:53:11,147 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 14:53:11,159 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 14:53:11,172 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 14:53:11,201 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 14:53:11,208 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 14:53:11,208 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 14:53:11,208 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 14:53:11,210 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 14:53:11,210 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 14:53:11,210 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 14:53:11,322 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 14:53:11,323 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 14:53:20,774 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 14:53:20,825 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 14:53:20,825 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 14:53:20,826 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 02:53:20 BoogieIcfgContainer
[2023-12-23 14:53:20,826 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 14:53:20,828 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 14:53:20,828 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 14:53:20,831 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 14:53:20,831 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 02:53:10" (1/3) ...
[2023-12-23 14:53:20,832 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f66d978 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 02:53:20, skipping insertion in model container
[2023-12-23 14:53:20,832 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:53:10" (2/3) ...
[2023-12-23 14:53:20,832 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f66d978 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 02:53:20, skipping insertion in model container
[2023-12-23 14:53:20,832 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 02:53:20" (3/3) ...
[2023-12-23 14:53:20,833 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-93.i
[2023-12-23 14:53:20,847 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 14:53:20,847 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 14:53:20,893 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 14:53:20,899 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;@2a781b3c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 14:53:20,900 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 14:53:20,902 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 97 states, 56 states have (on average 1.4464285714285714) internal successors, (81), 57 states have internal predecessors, (81), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38)
[2023-12-23 14:53:20,932 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 234
[2023-12-23 14:53:20,933 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 14:53:20,933 INFO  L195           NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:53:20,934 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 14:53:20,938 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 14:53:20,939 INFO  L85        PathProgramCache]: Analyzing trace with hash 1966293441, now seen corresponding path program 1 times
[2023-12-23 14:53:20,955 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 14:53:20,956 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1510553080]
[2023-12-23 14:53:20,956 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 14:53:20,956 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 14:53:20,957 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 14:53:20,958 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 14:53:20,961 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 14:53:21,451 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 14:53:21,471 INFO  L262         TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 14:53:21,481 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 14:53:21,528 INFO  L134       CoverageAnalysis]: Checked inductivity of 2812 backedges. 1082 proven. 0 refuted. 0 times theorem prover too weak. 1730 trivial. 0 not checked.
[2023-12-23 14:53:21,529 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 14:53:21,529 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 14:53:21,530 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1510553080]
[2023-12-23 14:53:21,530 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1510553080] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 14:53:21,530 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 14:53:21,530 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 14:53:21,532 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674129610]
[2023-12-23 14:53:21,532 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 14:53:21,536 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 14:53:21,536 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 14:53:21,558 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 14:53:21,559 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 14:53:21,561 INFO  L87              Difference]: Start difference. First operand  has 97 states, 56 states have (on average 1.4464285714285714) internal successors, (81), 57 states have internal predecessors, (81), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Second operand  has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38)
[2023-12-23 14:53:25,764 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 14:53:25,765 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 14:53:25,765 INFO  L93              Difference]: Finished difference Result 191 states and 350 transitions.
[2023-12-23 14:53:25,817 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 14:53:25,818 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 233
[2023-12-23 14:53:25,818 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 14:53:25,825 INFO  L225             Difference]: With dead ends: 191
[2023-12-23 14:53:25,825 INFO  L226             Difference]: Without dead ends: 95
[2023-12-23 14:53:25,828 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 232 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 14:53:25,832 INFO  L413           NwaCegarLoop]: 149 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time
[2023-12-23 14:53:25,833 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 149 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time]
[2023-12-23 14:53:25,847 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 95 states.
[2023-12-23 14:53:25,885 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95.
[2023-12-23 14:53:25,887 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 95 states, 55 states have (on average 1.3818181818181818) internal successors, (76), 55 states have internal predecessors, (76), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38)
[2023-12-23 14:53:25,895 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 152 transitions.
[2023-12-23 14:53:25,897 INFO  L78                 Accepts]: Start accepts. Automaton has 95 states and 152 transitions. Word has length 233
[2023-12-23 14:53:25,897 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 14:53:25,897 INFO  L495      AbstractCegarLoop]: Abstraction has 95 states and 152 transitions.
[2023-12-23 14:53:25,897 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38)
[2023-12-23 14:53:25,898 INFO  L276                IsEmpty]: Start isEmpty. Operand 95 states and 152 transitions.
[2023-12-23 14:53:25,905 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 234
[2023-12-23 14:53:25,906 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 14:53:25,906 INFO  L195           NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:53:25,918 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 14:53:26,106 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 14:53:26,107 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 14:53:26,108 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 14:53:26,108 INFO  L85        PathProgramCache]: Analyzing trace with hash 484818313, now seen corresponding path program 1 times
[2023-12-23 14:53:26,109 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 14:53:26,109 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1219909623]
[2023-12-23 14:53:26,109 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 14:53:26,109 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 14:53:26,110 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 14:53:26,111 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 14:53:26,112 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 14:53:26,513 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 14:53:26,530 INFO  L262         TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-23 14:53:26,538 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 14:53:30,740 INFO  L134       CoverageAnalysis]: Checked inductivity of 2812 backedges. 321 proven. 105 refuted. 0 times theorem prover too weak. 2386 trivial. 0 not checked.
[2023-12-23 14:53:30,740 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 14:53:31,548 INFO  L134       CoverageAnalysis]: Checked inductivity of 2812 backedges. 6 proven. 105 refuted. 0 times theorem prover too weak. 2701 trivial. 0 not checked.
[2023-12-23 14:53:31,548 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 14:53:31,548 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1219909623]
[2023-12-23 14:53:31,549 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1219909623] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 14:53:31,549 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 14:53:31,549 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8
[2023-12-23 14:53:31,549 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382317964]
[2023-12-23 14:53:31,549 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 14:53:31,551 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-23 14:53:31,551 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 14:53:31,552 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-23 14:53:31,553 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2023-12-23 14:53:31,553 INFO  L87              Difference]: Start difference. First operand 95 states and 152 transitions. Second operand  has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 3 states have call successors, (73), 2 states have call predecessors, (73), 4 states have return successors, (74), 3 states have call predecessors, (74), 3 states have call successors, (74)
[2023-12-23 14:53:36,594 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.87s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2023-12-23 14:53:40,202 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.51s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2023-12-23 14:53:44,448 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2023-12-23 14:53:48,118 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.67s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2023-12-23 14:53:48,576 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 14:53:48,576 INFO  L93              Difference]: Finished difference Result 195 states and 308 transitions.
[2023-12-23 14:53:48,586 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2023-12-23 14:53:48,587 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 3 states have call successors, (73), 2 states have call predecessors, (73), 4 states have return successors, (74), 3 states have call predecessors, (74), 3 states have call successors, (74) Word has length 233
[2023-12-23 14:53:48,588 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 14:53:48,589 INFO  L225             Difference]: With dead ends: 195
[2023-12-23 14:53:48,590 INFO  L226             Difference]: Without dead ends: 101
[2023-12-23 14:53:48,591 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 458 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132
[2023-12-23 14:53:48,592 INFO  L413           NwaCegarLoop]: 100 mSDtfsCounter, 145 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time
[2023-12-23 14:53:48,593 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 220 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 225 Invalid, 1 Unknown, 0 Unchecked, 16.8s Time]
[2023-12-23 14:53:48,594 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 101 states.
[2023-12-23 14:53:48,611 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 99.
[2023-12-23 14:53:48,612 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 99 states, 58 states have (on average 1.3448275862068966) internal successors, (78), 58 states have internal predecessors, (78), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38)
[2023-12-23 14:53:48,613 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 154 transitions.
[2023-12-23 14:53:48,613 INFO  L78                 Accepts]: Start accepts. Automaton has 99 states and 154 transitions. Word has length 233
[2023-12-23 14:53:48,614 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 14:53:48,614 INFO  L495      AbstractCegarLoop]: Abstraction has 99 states and 154 transitions.
[2023-12-23 14:53:48,615 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 3 states have call successors, (73), 2 states have call predecessors, (73), 4 states have return successors, (74), 3 states have call predecessors, (74), 3 states have call successors, (74)
[2023-12-23 14:53:48,615 INFO  L276                IsEmpty]: Start isEmpty. Operand 99 states and 154 transitions.
[2023-12-23 14:53:48,620 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 234
[2023-12-23 14:53:48,620 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 14:53:48,620 INFO  L195           NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:53:48,635 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 14:53:48,835 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 14:53:48,835 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 14:53:48,836 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 14:53:48,836 INFO  L85        PathProgramCache]: Analyzing trace with hash 1764681991, now seen corresponding path program 1 times
[2023-12-23 14:53:48,837 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 14:53:48,837 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1917355667]
[2023-12-23 14:53:48,837 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 14:53:48,837 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 14:53:48,837 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 14:53:48,838 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 14:53:48,839 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 14:53:49,267 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 14:53:49,283 INFO  L262         TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 14:53:49,289 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 14:53:49,358 INFO  L134       CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked.
[2023-12-23 14:53:49,359 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 14:53:49,359 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 14:53:49,359 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1917355667]
[2023-12-23 14:53:49,359 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1917355667] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 14:53:49,359 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 14:53:49,359 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-23 14:53:49,360 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677061312]
[2023-12-23 14:53:49,360 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 14:53:49,360 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 14:53:49,360 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 14:53:49,361 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 14:53:49,361 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 14:53:49,361 INFO  L87              Difference]: Start difference. First operand 99 states and 154 transitions. Second operand  has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38)
[2023-12-23 14:53:53,700 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 14:53:54,853 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 14:53:54,981 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 14:53:54,981 INFO  L93              Difference]: Finished difference Result 240 states and 367 transitions.
[2023-12-23 14:53:54,982 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 14:53:54,982 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) Word has length 233
[2023-12-23 14:53:54,983 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 14:53:54,986 INFO  L225             Difference]: With dead ends: 240
[2023-12-23 14:53:54,986 INFO  L226             Difference]: Without dead ends: 142
[2023-12-23 14:53:54,987 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 231 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 14:53:54,988 INFO  L413           NwaCegarLoop]: 143 mSDtfsCounter, 46 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time
[2023-12-23 14:53:54,989 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 277 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 21 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time]
[2023-12-23 14:53:54,989 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 142 states.
[2023-12-23 14:53:55,005 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 139.
[2023-12-23 14:53:55,005 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 139 states, 92 states have (on average 1.3478260869565217) internal successors, (124), 93 states have internal predecessors, (124), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42)
[2023-12-23 14:53:55,007 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 208 transitions.
[2023-12-23 14:53:55,007 INFO  L78                 Accepts]: Start accepts. Automaton has 139 states and 208 transitions. Word has length 233
[2023-12-23 14:53:55,008 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 14:53:55,008 INFO  L495      AbstractCegarLoop]: Abstraction has 139 states and 208 transitions.
[2023-12-23 14:53:55,008 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38)
[2023-12-23 14:53:55,008 INFO  L276                IsEmpty]: Start isEmpty. Operand 139 states and 208 transitions.
[2023-12-23 14:53:55,011 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 235
[2023-12-23 14:53:55,011 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 14:53:55,011 INFO  L195           NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:53:55,026 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 14:53:55,225 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 14:53:55,226 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 14:53:55,226 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 14:53:55,226 INFO  L85        PathProgramCache]: Analyzing trace with hash -1717949139, now seen corresponding path program 1 times
[2023-12-23 14:53:55,227 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 14:53:55,227 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [505562444]
[2023-12-23 14:53:55,227 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 14:53:55,227 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 14:53:55,228 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 14:53:55,229 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 14:53:55,234 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 14:53:55,710 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 14:53:55,727 INFO  L262         TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 33 conjunts are in the unsatisfiable core
[2023-12-23 14:53:55,754 INFO  L285         TraceCheckSpWp]: Computing forward predicates...