/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-co_file-14.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 16:01:55,906 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 16:01:55,988 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 16:01:55,993 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 16:01:55,993 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 16:01:56,022 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 16:01:56,023 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 16:01:56,023 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 16:01:56,024 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 16:01:56,028 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 16:01:56,028 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 16:01:56,028 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 16:01:56,029 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 16:01:56,030 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 16:01:56,031 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 16:01:56,031 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 16:01:56,031 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 16:01:56,032 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 16:01:56,032 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 16:01:56,032 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 16:01:56,032 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 16:01:56,033 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 16:01:56,033 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 16:01:56,033 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 16:01:56,033 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 16:01:56,033 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 16:01:56,034 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 16:01:56,034 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 16:01:56,034 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 16:01:56,034 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 16:01:56,035 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 16:01:56,036 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 16:01:56,036 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 16:01:56,036 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 16:01:56,036 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 16:01:56,036 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 16:01:56,036 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 16:01:56,036 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 16:01:56,037 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 16:01:56,037 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 16:01:56,037 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 16:01:56,037 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 16:01:56,037 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 16:01:56,037 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 16:01:56,038 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 16:01:56,038 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 16:01:56,038 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 16:01:56,281 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 16:01:56,302 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 16:01:56,305 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 16:01:56,305 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 16:01:56,306 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 16:01:56,308 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-14.i
[2023-12-23 16:01:57,460 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 16:01:57,729 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 16:01:57,730 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-14.i
[2023-12-23 16:01:57,740 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bb260cb5/e07a2ab5dc9c4fd8b0093e0b7239a8a5/FLAG09cb8ee48
[2023-12-23 16:01:57,752 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bb260cb5/e07a2ab5dc9c4fd8b0093e0b7239a8a5
[2023-12-23 16:01:57,754 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 16:01:57,755 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 16:01:57,758 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 16:01:57,758 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 16:01:57,762 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 16:01:57,763 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:01:57" (1/1) ...
[2023-12-23 16:01:57,764 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c50f680 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:01:57, skipping insertion in model container
[2023-12-23 16:01:57,764 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:01:57" (1/1) ...
[2023-12-23 16:01:57,801 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 16:01:57,916 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-co_file-14.i[919,932]
[2023-12-23 16:01:57,977 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 16:01:58,001 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 16:01:58,009 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-co_file-14.i[919,932]
[2023-12-23 16:01:58,062 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 16:01:58,079 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 16:01:58,079 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:01:58 WrapperNode
[2023-12-23 16:01:58,080 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 16:01:58,081 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 16:01:58,081 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 16:01:58,081 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 16:01:58,087 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:01:58" (1/1) ...
[2023-12-23 16:01:58,099 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:01:58" (1/1) ...
[2023-12-23 16:01:58,135 INFO  L138                Inliner]: procedures = 27, calls = 46, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 204
[2023-12-23 16:01:58,136 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 16:01:58,137 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 16:01:58,137 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 16:01:58,137 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 16:01:58,148 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:01:58" (1/1) ...
[2023-12-23 16:01:58,148 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:01:58" (1/1) ...
[2023-12-23 16:01:58,152 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:01:58" (1/1) ...
[2023-12-23 16:01:58,165 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 16:01:58,165 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:01:58" (1/1) ...
[2023-12-23 16:01:58,165 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:01:58" (1/1) ...
[2023-12-23 16:01:58,178 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:01:58" (1/1) ...
[2023-12-23 16:01:58,182 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:01:58" (1/1) ...
[2023-12-23 16:01:58,187 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:01:58" (1/1) ...
[2023-12-23 16:01:58,189 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:01:58" (1/1) ...
[2023-12-23 16:01:58,194 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 16:01:58,195 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 16:01:58,195 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 16:01:58,195 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 16:01:58,196 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:01:58" (1/1) ...
[2023-12-23 16:01:58,201 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 16:01:58,212 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 16:01:58,234 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 16:01:58,263 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 16:01:58,274 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 16:01:58,274 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 16:01:58,274 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 16:01:58,274 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 16:01:58,275 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 16:01:58,275 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 16:01:58,383 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 16:01:58,385 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 16:02:32,868 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 16:02:32,904 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 16:02:32,904 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 16:02:32,905 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:02:32 BoogieIcfgContainer
[2023-12-23 16:02:32,905 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 16:02:32,907 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 16:02:32,907 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 16:02:32,917 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 16:02:32,917 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 04:01:57" (1/3) ...
[2023-12-23 16:02:32,918 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4400357b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:02:32, skipping insertion in model container
[2023-12-23 16:02:32,919 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:01:58" (2/3) ...
[2023-12-23 16:02:32,919 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4400357b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:02:32, skipping insertion in model container
[2023-12-23 16:02:32,919 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:02:32" (3/3) ...
[2023-12-23 16:02:32,921 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-co_file-14.i
[2023-12-23 16:02:32,937 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 16:02:32,938 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 16:02:32,994 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 16:02:33,000 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;@1373f76f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 16:02:33,000 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 16:02:33,003 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 86 states, 50 states have (on average 1.48) internal successors, (74), 51 states have internal predecessors, (74), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33)
[2023-12-23 16:02:33,022 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 202
[2023-12-23 16:02:33,022 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 16:02:33,023 INFO  L195           NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:02:33,024 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 16:02:33,027 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 16:02:33,028 INFO  L85        PathProgramCache]: Analyzing trace with hash 1471176238, now seen corresponding path program 1 times
[2023-12-23 16:02:33,039 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 16:02:33,039 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [180247607]
[2023-12-23 16:02:33,040 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 16:02:33,040 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 16:02:33,040 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 16:02:33,043 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 16:02:33,045 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 16:02:33,609 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 16:02:33,645 INFO  L262         TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 16:02:33,657 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 16:02:38,672 INFO  L134       CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked.
[2023-12-23 16:02:38,673 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 16:02:38,674 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 16:02:38,674 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [180247607]
[2023-12-23 16:02:38,674 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [180247607] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 16:02:38,674 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 16:02:38,675 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 16:02:38,676 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565321912]
[2023-12-23 16:02:38,676 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 16:02:38,680 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 16:02:38,680 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 16:02:38,704 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 16:02:38,704 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 16:02:38,707 INFO  L87              Difference]: Start difference. First operand  has 86 states, 50 states have (on average 1.48) internal successors, (74), 51 states have internal predecessors, (74), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Second operand  has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33)
[2023-12-23 16:02:43,160 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 16:02:44,740 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 16:02:48,829 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 16:02:48,992 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 16:02:48,992 INFO  L93              Difference]: Finished difference Result 249 states and 476 transitions.
[2023-12-23 16:02:48,993 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 16:02:48,994 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 201
[2023-12-23 16:02:48,996 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 16:02:49,006 INFO  L225             Difference]: With dead ends: 249
[2023-12-23 16:02:49,006 INFO  L226             Difference]: Without dead ends: 164
[2023-12-23 16:02:49,009 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 16:02:49,012 INFO  L413           NwaCegarLoop]: 137 mSDtfsCounter, 40 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time
[2023-12-23 16:02:49,013 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 253 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 1 Unknown, 0 Unchecked, 10.2s Time]
[2023-12-23 16:02:49,024 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 164 states.
[2023-12-23 16:02:49,063 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 162.
[2023-12-23 16:02:49,065 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 162 states, 93 states have (on average 1.3440860215053763) internal successors, (125), 93 states have internal predecessors, (125), 66 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66)
[2023-12-23 16:02:49,068 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 257 transitions.
[2023-12-23 16:02:49,069 INFO  L78                 Accepts]: Start accepts. Automaton has 162 states and 257 transitions. Word has length 201
[2023-12-23 16:02:49,076 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 16:02:49,077 INFO  L495      AbstractCegarLoop]: Abstraction has 162 states and 257 transitions.
[2023-12-23 16:02:49,077 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33)
[2023-12-23 16:02:49,077 INFO  L276                IsEmpty]: Start isEmpty. Operand 162 states and 257 transitions.
[2023-12-23 16:02:49,081 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 203
[2023-12-23 16:02:49,081 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 16:02:49,081 INFO  L195           NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:02:49,102 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 16:02:49,282 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 16:02:49,282 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 16:02:49,283 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 16:02:49,283 INFO  L85        PathProgramCache]: Analyzing trace with hash 1293286152, now seen corresponding path program 1 times
[2023-12-23 16:02:49,284 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 16:02:49,284 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [792619845]
[2023-12-23 16:02:49,284 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 16:02:49,285 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 16:02:49,285 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 16:02:49,286 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 16:02:49,290 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 16:02:49,778 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 16:02:49,805 INFO  L262         TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 16:02:49,811 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 16:02:54,902 INFO  L134       CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked.
[2023-12-23 16:02:54,902 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 16:02:54,903 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 16:02:54,903 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [792619845]
[2023-12-23 16:02:54,903 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [792619845] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 16:02:54,903 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 16:02:54,903 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 16:02:54,904 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843740738]
[2023-12-23 16:02:54,904 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 16:02:54,907 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 16:02:54,908 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 16:02:54,910 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 16:02:54,910 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 16:02:54,910 INFO  L87              Difference]: Start difference. First operand 162 states and 257 transitions. Second operand  has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33)
[2023-12-23 16:02:58,298 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.11s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 16:02:58,508 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 16:02:58,508 INFO  L93              Difference]: Finished difference Result 393 states and 624 transitions.
[2023-12-23 16:02:58,509 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 16:02:58,509 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 202
[2023-12-23 16:02:58,510 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 16:02:58,517 INFO  L225             Difference]: With dead ends: 393
[2023-12-23 16:02:58,517 INFO  L226             Difference]: Without dead ends: 232
[2023-12-23 16:02:58,519 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 200 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 16:02:58,520 INFO  L413           NwaCegarLoop]: 129 mSDtfsCounter, 21 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time
[2023-12-23 16:02:58,520 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 252 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time]
[2023-12-23 16:02:58,521 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 232 states.
[2023-12-23 16:02:58,584 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 219.
[2023-12-23 16:02:58,585 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 219 states, 116 states have (on average 1.2758620689655173) internal successors, (148), 116 states have internal predecessors, (148), 99 states have call successors, (99), 3 states have call predecessors, (99), 3 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99)
[2023-12-23 16:02:58,588 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 346 transitions.
[2023-12-23 16:02:58,588 INFO  L78                 Accepts]: Start accepts. Automaton has 219 states and 346 transitions. Word has length 202
[2023-12-23 16:02:58,589 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 16:02:58,589 INFO  L495      AbstractCegarLoop]: Abstraction has 219 states and 346 transitions.
[2023-12-23 16:02:58,589 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33)
[2023-12-23 16:02:58,589 INFO  L276                IsEmpty]: Start isEmpty. Operand 219 states and 346 transitions.
[2023-12-23 16:02:58,592 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 204
[2023-12-23 16:02:58,592 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 16:02:58,592 INFO  L195           NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:02:58,611 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 16:02:58,808 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 16:02:58,809 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 16:02:58,809 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 16:02:58,809 INFO  L85        PathProgramCache]: Analyzing trace with hash -918012549, now seen corresponding path program 1 times
[2023-12-23 16:02:58,810 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 16:02:58,810 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [521234693]
[2023-12-23 16:02:58,810 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 16:02:58,810 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 16:02:58,811 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 16:02:58,812 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 16:02:58,813 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 16:02:59,875 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 16:02:59,922 INFO  L262         TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-23 16:02:59,927 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 16:03:04,034 INFO  L134       CoverageAnalysis]: Checked inductivity of 2112 backedges. 488 proven. 84 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked.
[2023-12-23 16:03:04,034 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 16:03:06,290 INFO  L134       CoverageAnalysis]: Checked inductivity of 2112 backedges. 12 proven. 84 refuted. 0 times theorem prover too weak. 2016 trivial. 0 not checked.
[2023-12-23 16:03:06,290 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 16:03:06,291 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [521234693]
[2023-12-23 16:03:06,291 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [521234693] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 16:03:06,291 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 16:03:06,291 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2023-12-23 16:03:06,291 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994079233]
[2023-12-23 16:03:06,291 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 16:03:06,292 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-23 16:03:06,292 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 16:03:06,293 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-23 16:03:06,293 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-23 16:03:06,293 INFO  L87              Difference]: Start difference. First operand 219 states and 346 transitions. Second operand  has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (61), 2 states have call predecessors, (61), 4 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62)
[2023-12-23 16:03:13,159 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 16:03:13,696 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 16:03:13,696 INFO  L93              Difference]: Finished difference Result 400 states and 619 transitions.
[2023-12-23 16:03:13,697 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-12-23 16:03:13,697 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (61), 2 states have call predecessors, (61), 4 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) Word has length 203
[2023-12-23 16:03:13,698 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 16:03:13,700 INFO  L225             Difference]: With dead ends: 400
[2023-12-23 16:03:13,700 INFO  L226             Difference]: Without dead ends: 239
[2023-12-23 16:03:13,701 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 398 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110
[2023-12-23 16:03:13,702 INFO  L413           NwaCegarLoop]: 101 mSDtfsCounter, 80 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time
[2023-12-23 16:03:13,702 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 221 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 191 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time]
[2023-12-23 16:03:13,703 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 239 states.
[2023-12-23 16:03:13,729 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 231.
[2023-12-23 16:03:13,730 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 231 states, 125 states have (on average 1.24) internal successors, (155), 125 states have internal predecessors, (155), 99 states have call successors, (99), 6 states have call predecessors, (99), 6 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99)
[2023-12-23 16:03:13,732 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 353 transitions.
[2023-12-23 16:03:13,732 INFO  L78                 Accepts]: Start accepts. Automaton has 231 states and 353 transitions. Word has length 203
[2023-12-23 16:03:13,733 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 16:03:13,733 INFO  L495      AbstractCegarLoop]: Abstraction has 231 states and 353 transitions.
[2023-12-23 16:03:13,734 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (61), 2 states have call predecessors, (61), 4 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62)
[2023-12-23 16:03:13,734 INFO  L276                IsEmpty]: Start isEmpty. Operand 231 states and 353 transitions.
[2023-12-23 16:03:13,736 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 204
[2023-12-23 16:03:13,736 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 16:03:13,736 INFO  L195           NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:03:13,772 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 16:03:13,956 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 16:03:13,957 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 16:03:13,957 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 16:03:13,957 INFO  L85        PathProgramCache]: Analyzing trace with hash -108665923, now seen corresponding path program 1 times
[2023-12-23 16:03:13,958 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 16:03:13,958 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [216912269]
[2023-12-23 16:03:13,958 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 16:03:13,958 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 16:03:13,959 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 16:03:13,960 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 16:03:13,973 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 16:03:15,058 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 16:03:15,107 INFO  L262         TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 21 conjunts are in the unsatisfiable core
[2023-12-23 16:03:15,115 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 16:03:51,766 INFO  L134       CoverageAnalysis]: Checked inductivity of 2112 backedges. 488 proven. 84 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked.
[2023-12-23 16:03:51,767 INFO  L327         TraceCheckSpWp]: Computing backward predicates...