/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-9.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 12:34:45,044 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 12:34:45,095 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 12:34:45,099 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 12:34:45,099 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 12:34:45,118 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 12:34:45,118 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 12:34:45,118 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 12:34:45,119 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 12:34:45,119 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 12:34:45,120 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 12:34:45,120 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 12:34:45,121 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 12:34:45,121 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 12:34:45,121 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 12:34:45,122 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 12:34:45,122 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 12:34:45,122 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 12:34:45,123 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 12:34:45,123 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 12:34:45,123 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 12:34:45,127 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 12:34:45,128 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 12:34:45,128 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 12:34:45,128 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 12:34:45,128 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 12:34:45,128 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 12:34:45,129 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 12:34:45,129 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 12:34:45,129 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 12:34:45,130 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 12:34:45,130 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 12:34:45,130 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 12:34:45,131 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 12:34:45,131 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 12:34:45,131 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 12:34:45,131 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 12:34:45,131 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 12:34:45,132 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 12:34:45,132 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 12:34:45,132 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 12:34:45,132 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 12:34:45,132 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 12:34:45,133 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 12:34:45,133 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 12:34:45,133 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 12:34:45,133 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 12:34:45,304 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 12:34:45,325 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 12:34:45,328 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 12:34:45,328 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 12:34:45,329 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 12:34:45,330 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-9.i
[2023-12-23 12:34:46,433 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 12:34:46,595 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 12:34:46,596 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-9.i
[2023-12-23 12:34:46,606 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b22989a7e/3265271b7aea4e9792490903cb3127e2/FLAGc5c6ea671
[2023-12-23 12:34:46,620 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b22989a7e/3265271b7aea4e9792490903cb3127e2
[2023-12-23 12:34:46,622 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 12:34:46,623 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 12:34:46,623 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 12:34:46,624 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 12:34:46,634 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 12:34:46,635 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 12:34:46" (1/1) ...
[2023-12-23 12:34:46,636 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56f660e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:34:46, skipping insertion in model container
[2023-12-23 12:34:46,636 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 12:34:46" (1/1) ...
[2023-12-23 12:34:46,677 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 12:34:46,810 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-9.i[918,931]
[2023-12-23 12:34:46,876 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 12:34:46,893 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 12:34:46,904 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-9.i[918,931]
[2023-12-23 12:34:46,940 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 12:34:46,956 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 12:34:46,957 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:34:46 WrapperNode
[2023-12-23 12:34:46,957 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 12:34:46,958 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 12:34:46,958 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 12:34:46,958 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 12:34:46,964 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:34:46" (1/1) ...
[2023-12-23 12:34:46,976 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:34:46" (1/1) ...
[2023-12-23 12:34:47,004 INFO  L138                Inliner]: procedures = 27, calls = 50, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 218
[2023-12-23 12:34:47,005 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 12:34:47,005 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 12:34:47,005 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 12:34:47,006 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 12:34:47,021 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:34:46" (1/1) ...
[2023-12-23 12:34:47,021 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:34:46" (1/1) ...
[2023-12-23 12:34:47,026 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:34:46" (1/1) ...
[2023-12-23 12:34:47,036 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 12:34:47,037 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:34:46" (1/1) ...
[2023-12-23 12:34:47,037 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:34:46" (1/1) ...
[2023-12-23 12:34:47,048 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:34:46" (1/1) ...
[2023-12-23 12:34:47,063 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:34:46" (1/1) ...
[2023-12-23 12:34:47,065 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:34:46" (1/1) ...
[2023-12-23 12:34:47,067 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:34:46" (1/1) ...
[2023-12-23 12:34:47,071 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 12:34:47,071 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 12:34:47,071 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 12:34:47,072 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 12:34:47,082 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:34:46" (1/1) ...
[2023-12-23 12:34:47,087 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 12:34:47,097 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 12:34:47,113 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 12:34:47,137 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 12:34:47,145 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 12:34:47,145 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 12:34:47,145 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 12:34:47,147 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 12:34:47,147 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 12:34:47,148 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 12:34:47,236 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 12:34:47,240 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 12:34:55,989 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 12:34:56,037 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 12:34:56,037 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 12:34:56,038 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 12:34:56 BoogieIcfgContainer
[2023-12-23 12:34:56,038 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 12:34:56,042 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 12:34:56,042 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 12:34:56,044 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 12:34:56,045 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 12:34:46" (1/3) ...
[2023-12-23 12:34:56,046 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ab01503 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 12:34:56, skipping insertion in model container
[2023-12-23 12:34:56,046 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:34:46" (2/3) ...
[2023-12-23 12:34:56,046 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ab01503 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 12:34:56, skipping insertion in model container
[2023-12-23 12:34:56,047 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 12:34:56" (3/3) ...
[2023-12-23 12:34:56,048 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-cn_file-9.i
[2023-12-23 12:34:56,062 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 12:34:56,062 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 12:34:56,100 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 12:34:56,105 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;@72de5d46, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 12:34:56,106 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 12:34:56,110 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 96 states, 56 states have (on average 1.4821428571428572) internal successors, (83), 57 states have internal predecessors, (83), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37)
[2023-12-23 12:34:56,124 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 226
[2023-12-23 12:34:56,124 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 12:34:56,125 INFO  L195           NwaCegarLoop]: trace histogram [37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:34:56,126 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 12:34:56,130 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 12:34:56,130 INFO  L85        PathProgramCache]: Analyzing trace with hash -603077885, now seen corresponding path program 1 times
[2023-12-23 12:34:56,141 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 12:34:56,141 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1596854500]
[2023-12-23 12:34:56,142 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 12:34:56,142 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 12:34:56,142 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 12:34:56,143 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 12:34:56,145 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 12:34:56,756 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 12:34:56,783 INFO  L262         TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 12:34:56,795 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 12:34:56,846 INFO  L134       CoverageAnalysis]: Checked inductivity of 2664 backedges. 1172 proven. 0 refuted. 0 times theorem prover too weak. 1492 trivial. 0 not checked.
[2023-12-23 12:34:56,846 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 12:34:56,847 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 12:34:56,847 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1596854500]
[2023-12-23 12:34:56,847 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1596854500] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 12:34:56,848 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 12:34:56,848 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 12:34:56,849 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63752817]
[2023-12-23 12:34:56,850 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 12:34:56,854 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 12:34:56,854 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 12:34:56,876 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 12:34:56,877 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 12:34:56,879 INFO  L87              Difference]: Start difference. First operand  has 96 states, 56 states have (on average 1.4821428571428572) internal successors, (83), 57 states have internal predecessors, (83), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Second operand  has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37)
[2023-12-23 12:34:56,982 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 12:34:56,982 INFO  L93              Difference]: Finished difference Result 189 states and 349 transitions.
[2023-12-23 12:34:56,992 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 12:34:56,993 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 225
[2023-12-23 12:34:56,994 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 12:34:57,001 INFO  L225             Difference]: With dead ends: 189
[2023-12-23 12:34:57,001 INFO  L226             Difference]: Without dead ends: 94
[2023-12-23 12:34:57,005 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 224 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 12:34:57,008 INFO  L413           NwaCegarLoop]: 148 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-23 12:34:57,009 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 148 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-23 12:34:57,022 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 94 states.
[2023-12-23 12:34:57,046 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94.
[2023-12-23 12:34:57,048 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 94 states, 55 states have (on average 1.4) internal successors, (77), 55 states have internal predecessors, (77), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37)
[2023-12-23 12:34:57,050 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 151 transitions.
[2023-12-23 12:34:57,052 INFO  L78                 Accepts]: Start accepts. Automaton has 94 states and 151 transitions. Word has length 225
[2023-12-23 12:34:57,052 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 12:34:57,052 INFO  L495      AbstractCegarLoop]: Abstraction has 94 states and 151 transitions.
[2023-12-23 12:34:57,052 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37)
[2023-12-23 12:34:57,053 INFO  L276                IsEmpty]: Start isEmpty. Operand 94 states and 151 transitions.
[2023-12-23 12:34:57,057 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 227
[2023-12-23 12:34:57,057 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 12:34:57,058 INFO  L195           NwaCegarLoop]: trace histogram [37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:34:57,077 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2023-12-23 12:34:57,262 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 12:34:57,262 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 12:34:57,263 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 12:34:57,263 INFO  L85        PathProgramCache]: Analyzing trace with hash 417240231, now seen corresponding path program 1 times
[2023-12-23 12:34:57,265 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 12:34:57,265 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1888113329]
[2023-12-23 12:34:57,265 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 12:34:57,265 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 12:34:57,266 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 12:34:57,267 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 12:34:57,286 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 12:34:57,864 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 12:34:57,899 INFO  L262         TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 16 conjunts are in the unsatisfiable core
[2023-12-23 12:34:57,908 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 12:35:05,669 INFO  L134       CoverageAnalysis]: Checked inductivity of 2664 backedges. 771 proven. 336 refuted. 0 times theorem prover too weak. 1557 trivial. 0 not checked.
[2023-12-23 12:35:05,669 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 12:35:06,996 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 12:35:06,997 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1888113329]
[2023-12-23 12:35:06,997 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1888113329] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 12:35:06,997 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2112807801]
[2023-12-23 12:35:06,997 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 12:35:06,997 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-23 12:35:06,998 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-23 12:35:07,046 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2023-12-23 12:35:07,048 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process
[2023-12-23 12:35:08,551 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 12:35:08,569 INFO  L262         TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 14 conjunts are in the unsatisfiable core
[2023-12-23 12:35:08,574 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 12:35:13,532 INFO  L134       CoverageAnalysis]: Checked inductivity of 2664 backedges. 734 proven. 261 refuted. 0 times theorem prover too weak. 1669 trivial. 0 not checked.
[2023-12-23 12:35:13,533 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 12:35:14,030 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2112807801] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 12:35:14,030 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 12:35:14,030 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13] total 17
[2023-12-23 12:35:14,031 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980518451]
[2023-12-23 12:35:14,031 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 12:35:14,032 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2023-12-23 12:35:14,033 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 12:35:14,034 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2023-12-23 12:35:14,034 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552
[2023-12-23 12:35:14,035 INFO  L87              Difference]: Start difference. First operand 94 states and 151 transitions. Second operand  has 18 states, 18 states have (on average 4.611111111111111) internal successors, (83), 16 states have internal predecessors, (83), 5 states have call successors, (65), 5 states have call predecessors, (65), 7 states have return successors, (66), 5 states have call predecessors, (66), 5 states have call successors, (66)
[2023-12-23 12:35:17,413 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 12:35:17,414 INFO  L93              Difference]: Finished difference Result 329 states and 516 transitions.
[2023-12-23 12:35:17,423 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. 
[2023-12-23 12:35:17,423 INFO  L78                 Accepts]: Start accepts. Automaton has  has 18 states, 18 states have (on average 4.611111111111111) internal successors, (83), 16 states have internal predecessors, (83), 5 states have call successors, (65), 5 states have call predecessors, (65), 7 states have return successors, (66), 5 states have call predecessors, (66), 5 states have call successors, (66) Word has length 226
[2023-12-23 12:35:17,425 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 12:35:17,427 INFO  L225             Difference]: With dead ends: 329
[2023-12-23 12:35:17,428 INFO  L226             Difference]: Without dead ends: 236
[2023-12-23 12:35:17,429 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 832 GetRequests, 791 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=443, Invalid=1279, Unknown=0, NotChecked=0, Total=1722
[2023-12-23 12:35:17,430 INFO  L413           NwaCegarLoop]: 141 mSDtfsCounter, 318 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 1043 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time
[2023-12-23 12:35:17,431 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 1043 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time]
[2023-12-23 12:35:17,431 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 236 states.
[2023-12-23 12:35:17,483 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 205.
[2023-12-23 12:35:17,484 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 205 states, 124 states have (on average 1.3629032258064515) internal successors, (169), 124 states have internal predecessors, (169), 74 states have call successors, (74), 6 states have call predecessors, (74), 6 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74)
[2023-12-23 12:35:17,486 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 317 transitions.
[2023-12-23 12:35:17,486 INFO  L78                 Accepts]: Start accepts. Automaton has 205 states and 317 transitions. Word has length 226
[2023-12-23 12:35:17,487 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 12:35:17,487 INFO  L495      AbstractCegarLoop]: Abstraction has 205 states and 317 transitions.
[2023-12-23 12:35:17,488 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 18 states, 18 states have (on average 4.611111111111111) internal successors, (83), 16 states have internal predecessors, (83), 5 states have call successors, (65), 5 states have call predecessors, (65), 7 states have return successors, (66), 5 states have call predecessors, (66), 5 states have call successors, (66)
[2023-12-23 12:35:17,488 INFO  L276                IsEmpty]: Start isEmpty. Operand 205 states and 317 transitions.
[2023-12-23 12:35:17,491 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 227
[2023-12-23 12:35:17,491 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 12:35:17,491 INFO  L195           NwaCegarLoop]: trace histogram [37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:35:17,509 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0
[2023-12-23 12:35:17,721 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 (3)] Ended with exit code 0
[2023-12-23 12:35:17,906 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 12:35:17,907 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 12:35:17,907 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 12:35:17,907 INFO  L85        PathProgramCache]: Analyzing trace with hash 1438308585, now seen corresponding path program 1 times
[2023-12-23 12:35:17,908 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 12:35:17,908 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1740488936]
[2023-12-23 12:35:17,908 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 12:35:17,909 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 12:35:17,909 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 12:35:17,912 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 12:35:17,915 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 12:35:18,415 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 12:35:18,445 INFO  L262         TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 29 conjunts are in the unsatisfiable core
[2023-12-23 12:35:18,451 INFO  L285         TraceCheckSpWp]: Computing forward predicates...