/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-co_file-54.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 13:15:37,239 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 13:15:37,303 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 13:15:37,306 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 13:15:37,306 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 13:15:37,331 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 13:15:37,332 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 13:15:37,332 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 13:15:37,333 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 13:15:37,335 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 13:15:37,336 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 13:15:37,336 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 13:15:37,337 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 13:15:37,338 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 13:15:37,338 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 13:15:37,338 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 13:15:37,338 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 13:15:37,339 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 13:15:37,339 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 13:15:37,339 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 13:15:37,339 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 13:15:37,339 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 13:15:37,340 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 13:15:37,340 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 13:15:37,340 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 13:15:37,340 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 13:15:37,340 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 13:15:37,340 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 13:15:37,340 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 13:15:37,341 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 13:15:37,341 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 13:15:37,342 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 13:15:37,342 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 13:15:37,342 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 13:15:37,342 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 13:15:37,342 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 13:15:37,342 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 13:15:37,342 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 13:15:37,342 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 13:15:37,342 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 13:15:37,343 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 13:15:37,343 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 13:15:37,343 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 13:15:37,343 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 13:15:37,343 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 13:15:37,344 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 13:15:37,344 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 13:15:37,571 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 13:15:37,587 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 13:15:37,591 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 13:15:37,592 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 13:15:37,593 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 13:15:37,595 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-54.i
[2023-12-23 13:15:38,788 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 13:15:38,920 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 13:15:38,920 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-54.i
[2023-12-23 13:15:38,931 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94ca0648b/48070654b31f4e938643efc937ee88bf/FLAGea25b176c
[2023-12-23 13:15:38,942 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94ca0648b/48070654b31f4e938643efc937ee88bf
[2023-12-23 13:15:38,944 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 13:15:38,945 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 13:15:38,948 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 13:15:38,948 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 13:15:38,951 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 13:15:38,951 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:15:38" (1/1) ...
[2023-12-23 13:15:38,952 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c7571e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:15:38, skipping insertion in model container
[2023-12-23 13:15:38,952 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:15:38" (1/1) ...
[2023-12-23 13:15:38,981 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 13:15:39,078 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-co_file-54.i[919,932]
[2023-12-23 13:15:39,146 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 13:15:39,158 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 13:15:39,167 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-co_file-54.i[919,932]
[2023-12-23 13:15:39,197 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 13:15:39,210 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 13:15:39,211 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:15:39 WrapperNode
[2023-12-23 13:15:39,211 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 13:15:39,212 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 13:15:39,212 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 13:15:39,212 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 13:15:39,217 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:15:39" (1/1) ...
[2023-12-23 13:15:39,227 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:15:39" (1/1) ...
[2023-12-23 13:15:39,251 INFO  L138                Inliner]: procedures = 27, calls = 48, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 221
[2023-12-23 13:15:39,251 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 13:15:39,252 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 13:15:39,252 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 13:15:39,252 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 13:15:39,260 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:15:39" (1/1) ...
[2023-12-23 13:15:39,260 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:15:39" (1/1) ...
[2023-12-23 13:15:39,264 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:15:39" (1/1) ...
[2023-12-23 13:15:39,275 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 13:15:39,275 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:15:39" (1/1) ...
[2023-12-23 13:15:39,275 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:15:39" (1/1) ...
[2023-12-23 13:15:39,284 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:15:39" (1/1) ...
[2023-12-23 13:15:39,287 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:15:39" (1/1) ...
[2023-12-23 13:15:39,289 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:15:39" (1/1) ...
[2023-12-23 13:15:39,291 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:15:39" (1/1) ...
[2023-12-23 13:15:39,294 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 13:15:39,295 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 13:15:39,295 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 13:15:39,295 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 13:15:39,296 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:15:39" (1/1) ...
[2023-12-23 13:15:39,303 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 13:15:39,313 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 13:15:39,329 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 13:15:39,366 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 13:15:39,372 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 13:15:39,372 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 13:15:39,372 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 13:15:39,373 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 13:15:39,373 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 13:15:39,374 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 13:15:39,475 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 13:15:39,476 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 13:15:45,610 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 13:15:45,702 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 13:15:45,703 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 13:15:45,703 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:15:45 BoogieIcfgContainer
[2023-12-23 13:15:45,703 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 13:15:45,706 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 13:15:45,706 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 13:15:45,709 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 13:15:45,709 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 01:15:38" (1/3) ...
[2023-12-23 13:15:45,710 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4438a0ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:15:45, skipping insertion in model container
[2023-12-23 13:15:45,710 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:15:39" (2/3) ...
[2023-12-23 13:15:45,710 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4438a0ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:15:45, skipping insertion in model container
[2023-12-23 13:15:45,710 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:15:45" (3/3) ...
[2023-12-23 13:15:45,711 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-co_file-54.i
[2023-12-23 13:15:45,732 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 13:15:45,732 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 13:15:45,766 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 13:15:45,771 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;@5017911d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 13:15:45,771 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 13:15:45,775 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 92 states, 54 states have (on average 1.4074074074074074) internal successors, (76), 55 states have internal predecessors, (76), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35)
[2023-12-23 13:15:45,789 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 221
[2023-12-23 13:15:45,789 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 13:15:45,790 INFO  L195           NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:15:45,790 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 13:15:45,795 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 13:15:45,795 INFO  L85        PathProgramCache]: Analyzing trace with hash -680552173, now seen corresponding path program 1 times
[2023-12-23 13:15:45,806 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 13:15:45,806 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1247019435]
[2023-12-23 13:15:45,807 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 13:15:45,807 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 13:15:45,808 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 13:15:45,809 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 13:15:45,814 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 13:15:46,358 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 13:15:46,385 INFO  L262         TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 13:15:46,400 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 13:15:46,473 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 440 proven. 0 refuted. 0 times theorem prover too weak. 1940 trivial. 0 not checked.
[2023-12-23 13:15:46,473 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 13:15:46,474 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 13:15:46,474 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1247019435]
[2023-12-23 13:15:46,474 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1247019435] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 13:15:46,474 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 13:15:46,475 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 13:15:46,476 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524719300]
[2023-12-23 13:15:46,476 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 13:15:46,479 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 13:15:46,480 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 13:15:46,511 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 13:15:46,512 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 13:15:46,514 INFO  L87              Difference]: Start difference. First operand  has 92 states, 54 states have (on average 1.4074074074074074) internal successors, (76), 55 states have internal predecessors, (76), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand  has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35)
[2023-12-23 13:15:49,937 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.36s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 13:15:49,938 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 13:15:49,938 INFO  L93              Difference]: Finished difference Result 181 states and 325 transitions.
[2023-12-23 13:15:49,975 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 13:15:49,977 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 220
[2023-12-23 13:15:49,977 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 13:15:49,982 INFO  L225             Difference]: With dead ends: 181
[2023-12-23 13:15:49,982 INFO  L226             Difference]: Without dead ends: 90
[2023-12-23 13:15:49,991 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 219 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 13:15:49,994 INFO  L413           NwaCegarLoop]: 135 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time
[2023-12-23 13:15:49,994 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 135 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time]
[2023-12-23 13:15:50,006 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 90 states.
[2023-12-23 13:15:50,029 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90.
[2023-12-23 13:15:50,030 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 90 states, 53 states have (on average 1.2830188679245282) internal successors, (68), 53 states have internal predecessors, (68), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35)
[2023-12-23 13:15:50,032 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 138 transitions.
[2023-12-23 13:15:50,033 INFO  L78                 Accepts]: Start accepts. Automaton has 90 states and 138 transitions. Word has length 220
[2023-12-23 13:15:50,033 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 13:15:50,033 INFO  L495      AbstractCegarLoop]: Abstraction has 90 states and 138 transitions.
[2023-12-23 13:15:50,034 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35)
[2023-12-23 13:15:50,034 INFO  L276                IsEmpty]: Start isEmpty. Operand 90 states and 138 transitions.
[2023-12-23 13:15:50,037 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 221
[2023-12-23 13:15:50,037 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 13:15:50,037 INFO  L195           NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:15:50,055 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 13:15:50,253 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 13:15:50,253 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 13:15:50,254 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 13:15:50,254 INFO  L85        PathProgramCache]: Analyzing trace with hash -741675127, now seen corresponding path program 1 times
[2023-12-23 13:15:50,255 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 13:15:50,255 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1940261517]
[2023-12-23 13:15:50,256 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 13:15:50,256 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 13:15:50,256 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 13:15:50,257 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 13:15:50,272 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 13:15:50,847 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 13:15:50,883 INFO  L262         TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-23 13:15:50,901 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 13:15:52,142 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked.
[2023-12-23 13:15:52,142 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 13:15:52,143 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 13:15:52,143 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1940261517]
[2023-12-23 13:15:52,143 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1940261517] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 13:15:52,143 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 13:15:52,143 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-23 13:15:52,144 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116619483]
[2023-12-23 13:15:52,144 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 13:15:52,145 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-23 13:15:52,145 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 13:15:52,146 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-23 13:15:52,147 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-23 13:15:52,147 INFO  L87              Difference]: Start difference. First operand 90 states and 138 transitions. Second operand  has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35)
[2023-12-23 13:15:56,469 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.88s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 13:16:00,676 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 13:16:00,677 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 13:16:00,677 INFO  L93              Difference]: Finished difference Result 269 states and 413 transitions.
[2023-12-23 13:16:00,713 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-23 13:16:00,714 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 220
[2023-12-23 13:16:00,715 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 13:16:00,717 INFO  L225             Difference]: With dead ends: 269
[2023-12-23 13:16:00,717 INFO  L226             Difference]: Without dead ends: 180
[2023-12-23 13:16:00,718 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-23 13:16:00,718 INFO  L413           NwaCegarLoop]: 134 mSDtfsCounter, 89 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 71 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time
[2023-12-23 13:16:00,719 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 400 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 8.4s Time]
[2023-12-23 13:16:00,720 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 180 states.
[2023-12-23 13:16:00,753 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 155.
[2023-12-23 13:16:00,760 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 155 states, 82 states have (on average 1.1829268292682926) internal successors, (97), 82 states have internal predecessors, (97), 70 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70)
[2023-12-23 13:16:00,763 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 237 transitions.
[2023-12-23 13:16:00,764 INFO  L78                 Accepts]: Start accepts. Automaton has 155 states and 237 transitions. Word has length 220
[2023-12-23 13:16:00,766 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 13:16:00,767 INFO  L495      AbstractCegarLoop]: Abstraction has 155 states and 237 transitions.
[2023-12-23 13:16:00,769 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35)
[2023-12-23 13:16:00,769 INFO  L276                IsEmpty]: Start isEmpty. Operand 155 states and 237 transitions.
[2023-12-23 13:16:00,771 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 222
[2023-12-23 13:16:00,771 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 13:16:00,771 INFO  L195           NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:16:00,803 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 13:16:00,991 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 13:16:00,992 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 13:16:00,993 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 13:16:00,993 INFO  L85        PathProgramCache]: Analyzing trace with hash -1009343494, now seen corresponding path program 1 times
[2023-12-23 13:16:00,994 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 13:16:00,994 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1801953729]
[2023-12-23 13:16:00,994 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 13:16:00,994 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 13:16:00,994 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 13:16:00,999 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 13:16:01,000 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 13:16:01,551 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 13:16:01,577 INFO  L262         TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 13:16:01,581 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 13:16:02,346 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked.
[2023-12-23 13:16:02,347 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 13:16:02,347 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 13:16:02,347 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1801953729]
[2023-12-23 13:16:02,347 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1801953729] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 13:16:02,347 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 13:16:02,347 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 13:16:02,347 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527584709]
[2023-12-23 13:16:02,348 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 13:16:02,348 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 13:16:02,348 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 13:16:02,349 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 13:16:02,349 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 13:16:02,349 INFO  L87              Difference]: Start difference. First operand 155 states and 237 transitions. Second operand  has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35)
[2023-12-23 13:16:05,623 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.23s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 13:16:05,834 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 13:16:05,835 INFO  L93              Difference]: Finished difference Result 333 states and 511 transitions.
[2023-12-23 13:16:05,835 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 13:16:05,836 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 221
[2023-12-23 13:16:05,836 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 13:16:05,838 INFO  L225             Difference]: With dead ends: 333
[2023-12-23 13:16:05,838 INFO  L226             Difference]: Without dead ends: 244
[2023-12-23 13:16:05,839 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 219 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 13:16:05,840 INFO  L413           NwaCegarLoop]: 139 mSDtfsCounter, 23 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time
[2023-12-23 13:16:05,840 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 271 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time]
[2023-12-23 13:16:05,841 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 244 states.
[2023-12-23 13:16:05,871 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 242.
[2023-12-23 13:16:05,874 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 242 states, 133 states have (on average 1.218045112781955) internal successors, (162), 133 states have internal predecessors, (162), 105 states have call successors, (105), 3 states have call predecessors, (105), 3 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105)
[2023-12-23 13:16:05,877 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 372 transitions.
[2023-12-23 13:16:05,877 INFO  L78                 Accepts]: Start accepts. Automaton has 242 states and 372 transitions. Word has length 221
[2023-12-23 13:16:05,879 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 13:16:05,879 INFO  L495      AbstractCegarLoop]: Abstraction has 242 states and 372 transitions.
[2023-12-23 13:16:05,879 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35)
[2023-12-23 13:16:05,879 INFO  L276                IsEmpty]: Start isEmpty. Operand 242 states and 372 transitions.
[2023-12-23 13:16:05,883 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 222
[2023-12-23 13:16:05,883 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 13:16:05,884 INFO  L195           NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:16:05,899 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 13:16:06,098 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 13:16:06,099 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 13:16:06,103 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 13:16:06,104 INFO  L85        PathProgramCache]: Analyzing trace with hash -952085192, now seen corresponding path program 1 times
[2023-12-23 13:16:06,105 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 13:16:06,105 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1526710219]
[2023-12-23 13:16:06,105 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 13:16:06,105 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 13:16:06,105 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 13:16:06,107 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 13:16:06,108 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 13:16:06,720 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 13:16:06,750 INFO  L262         TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 12 conjunts are in the unsatisfiable core
[2023-12-23 13:16:06,754 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 13:16:09,631 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 1251 proven. 240 refuted. 0 times theorem prover too weak. 889 trivial. 0 not checked.
[2023-12-23 13:16:09,631 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 13:16:10,068 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 13:16:10,068 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1526710219]
[2023-12-23 13:16:10,068 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1526710219] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 13:16:10,068 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [351761390]
[2023-12-23 13:16:10,068 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 13:16:10,069 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-23 13:16:10,069 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-23 13:16:10,122 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2023-12-23 13:16:10,123 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process
[2023-12-23 13:16:12,846 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 13:16:12,898 INFO  L262         TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 13 conjunts are in the unsatisfiable core
[2023-12-23 13:16:12,902 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 13:16:14,915 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 1251 proven. 240 refuted. 0 times theorem prover too weak. 889 trivial. 0 not checked.
[2023-12-23 13:16:14,916 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 13:16:15,118 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [351761390] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 13:16:15,118 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 13:16:15,118 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 13
[2023-12-23 13:16:15,118 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913281870]
[2023-12-23 13:16:15,118 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 13:16:15,119 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2023-12-23 13:16:15,120 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 13:16:15,121 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2023-12-23 13:16:15,121 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240
[2023-12-23 13:16:15,121 INFO  L87              Difference]: Start difference. First operand 242 states and 372 transitions. Second operand  has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 13 states have internal predecessors, (64), 4 states have call successors, (35), 4 states have call predecessors, (35), 6 states have return successors, (35), 3 states have call predecessors, (35), 4 states have call successors, (35)
[2023-12-23 13:16:24,977 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2023-12-23 13:16:29,258 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 13:16:29,258 INFO  L93              Difference]: Finished difference Result 692 states and 1003 transitions.
[2023-12-23 13:16:29,259 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. 
[2023-12-23 13:16:29,260 INFO  L78                 Accepts]: Start accepts. Automaton has  has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 13 states have internal predecessors, (64), 4 states have call successors, (35), 4 states have call predecessors, (35), 6 states have return successors, (35), 3 states have call predecessors, (35), 4 states have call successors, (35) Word has length 221
[2023-12-23 13:16:29,260 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 13:16:29,263 INFO  L225             Difference]: With dead ends: 692
[2023-12-23 13:16:29,263 INFO  L226             Difference]: Without dead ends: 516
[2023-12-23 13:16:29,264 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 503 GetRequests, 470 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=290, Invalid=900, Unknown=0, NotChecked=0, Total=1190
[2023-12-23 13:16:29,265 INFO  L413           NwaCegarLoop]: 157 mSDtfsCounter, 358 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 961 mSolverCounterSat, 115 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 1079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 961 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time
[2023-12-23 13:16:29,265 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 582 Invalid, 1079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 961 Invalid, 3 Unknown, 0 Unchecked, 12.5s Time]
[2023-12-23 13:16:29,266 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 516 states.
[2023-12-23 13:16:29,307 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 284.
[2023-12-23 13:16:29,308 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 284 states, 166 states have (on average 1.1867469879518073) internal successors, (197), 166 states have internal predecessors, (197), 105 states have call successors, (105), 12 states have call predecessors, (105), 12 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105)
[2023-12-23 13:16:29,309 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 407 transitions.
[2023-12-23 13:16:29,309 INFO  L78                 Accepts]: Start accepts. Automaton has 284 states and 407 transitions. Word has length 221
[2023-12-23 13:16:29,310 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 13:16:29,310 INFO  L495      AbstractCegarLoop]: Abstraction has 284 states and 407 transitions.
[2023-12-23 13:16:29,311 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 13 states have internal predecessors, (64), 4 states have call successors, (35), 4 states have call predecessors, (35), 6 states have return successors, (35), 3 states have call predecessors, (35), 4 states have call successors, (35)
[2023-12-23 13:16:29,311 INFO  L276                IsEmpty]: Start isEmpty. Operand 284 states and 407 transitions.
[2023-12-23 13:16:29,312 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 222
[2023-12-23 13:16:29,312 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 13:16:29,313 INFO  L195           NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:16:29,347 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 (5)] Forceful destruction successful, exit code 0
[2023-12-23 13:16:29,557 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0
[2023-12-23 13:16:29,756 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /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=3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2023-12-23 13:16:29,757 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 13:16:29,757 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 13:16:29,757 INFO  L85        PathProgramCache]: Analyzing trace with hash -1410132424, now seen corresponding path program 1 times
[2023-12-23 13:16:29,758 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 13:16:29,758 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2014820356]
[2023-12-23 13:16:29,759 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 13:16:29,759 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 13:16:29,759 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 13:16:29,761 INFO  L229       MonitoredProcess]: Starting monitored process 7 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 13:16:29,765 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 (7)] Waiting until timeout for monitored process
[2023-12-23 13:16:30,548 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 13:16:30,576 INFO  L262         TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 21 conjunts are in the unsatisfiable core
[2023-12-23 13:16:30,581 INFO  L285         TraceCheckSpWp]: Computing forward predicates...