/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_fillercodesize_ps-cn-100_file-13.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-22 23:48:42,638 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-22 23:48:42,703 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-12-22 23:48:42,708 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-22 23:48:42,708 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-22 23:48:42,729 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-22 23:48:42,729 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-22 23:48:42,729 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-22 23:48:42,730 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-22 23:48:42,732 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-22 23:48:42,733 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-22 23:48:42,733 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-22 23:48:42,733 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-22 23:48:42,734 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-22 23:48:42,734 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-22 23:48:42,734 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-22 23:48:42,735 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-22 23:48:42,735 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-22 23:48:42,735 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-22 23:48:42,736 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-22 23:48:42,736 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-22 23:48:42,736 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-22 23:48:42,736 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-22 23:48:42,736 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-22 23:48:42,737 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-22 23:48:42,737 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-22 23:48:42,737 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-22 23:48:42,737 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-22 23:48:42,737 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-22 23:48:42,737 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-22 23:48:42,738 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-22 23:48:42,738 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-22 23:48:42,738 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-22 23:48:42,738 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-22 23:48:42,738 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 23:48:42,739 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-22 23:48:42,739 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-22 23:48:42,739 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-22 23:48:42,739 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-22 23:48:42,739 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-22 23:48:42,739 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-22 23:48:42,739 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-22 23:48:42,739 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-22 23:48:42,739 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-22 23:48:42,740 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-22 23:48:42,740 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-22 23:48:42,740 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-22 23:48:42,906 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-22 23:48:42,921 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-22 23:48:42,923 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-22 23:48:42,923 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-22 23:48:42,923 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-22 23:48:42,925 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-13.i
[2023-12-22 23:48:43,978 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-22 23:48:44,158 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-22 23:48:44,159 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-13.i
[2023-12-22 23:48:44,166 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08bac9b4c/a03342cfb79e4dbdb2d190e6daee892d/FLAG8001e74a0
[2023-12-22 23:48:44,189 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08bac9b4c/a03342cfb79e4dbdb2d190e6daee892d
[2023-12-22 23:48:44,191 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-22 23:48:44,192 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-22 23:48:44,192 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-22 23:48:44,192 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-22 23:48:44,196 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-22 23:48:44,196 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:48:44" (1/1) ...
[2023-12-22 23:48:44,197 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77e50594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:48:44, skipping insertion in model container
[2023-12-22 23:48:44,197 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:48:44" (1/1) ...
[2023-12-22 23:48:44,230 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-22 23:48:44,331 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_fillercodesize_ps-cn-100_file-13.i[916,929]
[2023-12-22 23:48:44,420 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 23:48:44,438 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-22 23:48:44,447 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_fillercodesize_ps-cn-100_file-13.i[916,929]
[2023-12-22 23:48:44,491 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 23:48:44,503 INFO  L206         MainTranslator]: Completed translation
[2023-12-22 23:48:44,504 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:48:44 WrapperNode
[2023-12-22 23:48:44,504 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-22 23:48:44,511 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-22 23:48:44,511 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-22 23:48:44,511 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-22 23:48:44,515 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:48:44" (1/1) ...
[2023-12-22 23:48:44,535 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:48:44" (1/1) ...
[2023-12-22 23:48:44,560 INFO  L138                Inliner]: procedures = 27, calls = 72, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 309
[2023-12-22 23:48:44,560 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-22 23:48:44,561 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-22 23:48:44,561 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-22 23:48:44,561 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-22 23:48:44,575 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:48:44" (1/1) ...
[2023-12-22 23:48:44,575 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:48:44" (1/1) ...
[2023-12-22 23:48:44,581 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:48:44" (1/1) ...
[2023-12-22 23:48:44,593 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].
[2023-12-22 23:48:44,593 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:48:44" (1/1) ...
[2023-12-22 23:48:44,593 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:48:44" (1/1) ...
[2023-12-22 23:48:44,604 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:48:44" (1/1) ...
[2023-12-22 23:48:44,608 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:48:44" (1/1) ...
[2023-12-22 23:48:44,611 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:48:44" (1/1) ...
[2023-12-22 23:48:44,613 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:48:44" (1/1) ...
[2023-12-22 23:48:44,623 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-22 23:48:44,636 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-22 23:48:44,637 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-22 23:48:44,637 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-22 23:48:44,637 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:48:44" (1/1) ...
[2023-12-22 23:48:44,641 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 23:48:44,659 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-22 23:48:44,696 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)
[2023-12-22 23:48:44,704 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
[2023-12-22 23:48:44,720 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-22 23:48:44,720 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-22 23:48:44,720 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-22 23:48:44,722 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-22 23:48:44,722 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-22 23:48:44,722 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-22 23:48:44,790 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-22 23:48:44,791 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-22 23:49:09,108 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-22 23:49:09,160 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-22 23:49:09,160 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-22 23:49:09,161 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:49:09 BoogieIcfgContainer
[2023-12-22 23:49:09,161 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-22 23:49:09,162 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-22 23:49:09,162 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-22 23:49:09,165 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-22 23:49:09,165 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:48:44" (1/3) ...
[2023-12-22 23:49:09,165 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1df20dca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:49:09, skipping insertion in model container
[2023-12-22 23:49:09,165 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:48:44" (2/3) ...
[2023-12-22 23:49:09,166 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1df20dca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:49:09, skipping insertion in model container
[2023-12-22 23:49:09,166 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:49:09" (3/3) ...
[2023-12-22 23:49:09,167 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-100_file-13.i
[2023-12-22 23:49:09,178 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-22 23:49:09,178 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-22 23:49:09,248 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-22 23:49:09,252 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;@65f32c91, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-22 23:49:09,252 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-22 23:49:09,259 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 140 states, 78 states have (on average 1.4615384615384615) internal successors, (114), 79 states have internal predecessors, (114), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59)
[2023-12-22 23:49:09,276 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 356
[2023-12-22 23:49:09,276 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 23:49:09,277 INFO  L195           NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 23:49:09,277 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 23:49:09,281 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 23:49:09,281 INFO  L85        PathProgramCache]: Analyzing trace with hash 1209449104, now seen corresponding path program 1 times
[2023-12-22 23:49:09,301 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 23:49:09,301 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [463031450]
[2023-12-22 23:49:09,301 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 23:49:09,302 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
[2023-12-22 23:49:09,302 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 23:49:09,311 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)
[2023-12-22 23:49:09,319 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
[2023-12-22 23:49:10,880 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 23:49:10,947 INFO  L262         TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-22 23:49:10,958 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 23:49:12,596 INFO  L134       CoverageAnalysis]: Checked inductivity of 6844 backedges. 3018 proven. 54 refuted. 0 times theorem prover too weak. 3772 trivial. 0 not checked.
[2023-12-22 23:49:12,597 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-22 23:49:13,627 INFO  L134       CoverageAnalysis]: Checked inductivity of 6844 backedges. 120 proven. 54 refuted. 0 times theorem prover too weak. 6670 trivial. 0 not checked.
[2023-12-22 23:49:13,628 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 23:49:13,628 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [463031450]
[2023-12-22 23:49:13,629 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [463031450] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-22 23:49:13,629 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-22 23:49:13,629 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2023-12-22 23:49:13,630 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582900518]
[2023-12-22 23:49:13,630 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-22 23:49:13,635 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-22 23:49:13,635 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 23:49:13,653 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-22 23:49:13,653 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-22 23:49:13,655 INFO  L87              Difference]: Start difference. First operand  has 140 states, 78 states have (on average 1.4615384615384615) internal successors, (114), 79 states have internal predecessors, (114), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) Second operand  has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 2 states have call successors, (77), 2 states have call predecessors, (77), 4 states have return successors, (78), 2 states have call predecessors, (78), 2 states have call successors, (78)
[2023-12-22 23:49:20,399 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.82s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 23:49:20,484 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 23:49:20,484 INFO  L93              Difference]: Finished difference Result 282 states and 525 transitions.
[2023-12-22 23:49:20,522 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-12-22 23:49:20,524 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 2 states have call successors, (77), 2 states have call predecessors, (77), 4 states have return successors, (78), 2 states have call predecessors, (78), 2 states have call successors, (78) Word has length 355
[2023-12-22 23:49:20,525 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 23:49:20,531 INFO  L225             Difference]: With dead ends: 282
[2023-12-22 23:49:20,531 INFO  L226             Difference]: Without dead ends: 143
[2023-12-22 23:49:20,534 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 712 GetRequests, 702 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110
[2023-12-22 23:49:20,536 INFO  L413           NwaCegarLoop]: 147 mSDtfsCounter, 280 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time
[2023-12-22 23:49:20,536 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 318 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time]
[2023-12-22 23:49:20,548 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 143 states.
[2023-12-22 23:49:20,579 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 139.
[2023-12-22 23:49:20,580 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 139 states, 77 states have (on average 1.2987012987012987) internal successors, (100), 77 states have internal predecessors, (100), 59 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59)
[2023-12-22 23:49:20,581 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 218 transitions.
[2023-12-22 23:49:20,582 INFO  L78                 Accepts]: Start accepts. Automaton has 139 states and 218 transitions. Word has length 355
[2023-12-22 23:49:20,586 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 23:49:20,587 INFO  L495      AbstractCegarLoop]: Abstraction has 139 states and 218 transitions.
[2023-12-22 23:49:20,587 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 2 states have call successors, (77), 2 states have call predecessors, (77), 4 states have return successors, (78), 2 states have call predecessors, (78), 2 states have call successors, (78)
[2023-12-22 23:49:20,587 INFO  L276                IsEmpty]: Start isEmpty. Operand 139 states and 218 transitions.
[2023-12-22 23:49:20,596 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 356
[2023-12-22 23:49:20,597 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 23:49:20,597 INFO  L195           NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 23:49:20,626 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2023-12-22 23:49:20,820 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
[2023-12-22 23:49:20,821 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 23:49:20,821 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 23:49:20,822 INFO  L85        PathProgramCache]: Analyzing trace with hash 1428303822, now seen corresponding path program 1 times
[2023-12-22 23:49:20,822 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 23:49:20,822 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1155719927]
[2023-12-22 23:49:20,823 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 23:49:20,823 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
[2023-12-22 23:49:20,823 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 23:49:20,825 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)
[2023-12-22 23:49:20,851 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
[2023-12-22 23:49:22,503 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 23:49:22,578 INFO  L262         TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-22 23:49:22,592 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 23:49:31,922 INFO  L134       CoverageAnalysis]: Checked inductivity of 6844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked.
[2023-12-22 23:49:31,922 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 23:49:31,922 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 23:49:31,922 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1155719927]
[2023-12-22 23:49:31,922 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1155719927] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 23:49:31,922 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 23:49:31,923 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-22 23:49:31,923 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246094131]
[2023-12-22 23:49:31,923 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 23:49:31,924 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-22 23:49:31,924 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 23:49:31,925 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-22 23:49:31,925 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-22 23:49:31,925 INFO  L87              Difference]: Start difference. First operand 139 states and 218 transitions. Second operand  has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59)
[2023-12-22 23:49:35,192 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 23:49:37,430 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 23:49:37,430 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 23:49:37,431 INFO  L93              Difference]: Finished difference Result 416 states and 653 transitions.
[2023-12-22 23:49:37,471 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-22 23:49:37,471 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) Word has length 355
[2023-12-22 23:49:37,472 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 23:49:37,477 INFO  L225             Difference]: With dead ends: 416
[2023-12-22 23:49:37,477 INFO  L226             Difference]: Without dead ends: 278
[2023-12-22 23:49:37,478 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 351 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2023-12-22 23:49:37,479 INFO  L413           NwaCegarLoop]: 209 mSDtfsCounter, 145 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time
[2023-12-22 23:49:37,479 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 714 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time]
[2023-12-22 23:49:37,480 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 278 states.
[2023-12-22 23:49:37,609 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 260.
[2023-12-22 23:49:37,611 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 260 states, 137 states have (on average 1.2627737226277371) internal successors, (173), 137 states have internal predecessors, (173), 118 states have call successors, (118), 4 states have call predecessors, (118), 4 states have return successors, (118), 118 states have call predecessors, (118), 118 states have call successors, (118)
[2023-12-22 23:49:37,613 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 409 transitions.
[2023-12-22 23:49:37,613 INFO  L78                 Accepts]: Start accepts. Automaton has 260 states and 409 transitions. Word has length 355
[2023-12-22 23:49:37,614 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 23:49:37,615 INFO  L495      AbstractCegarLoop]: Abstraction has 260 states and 409 transitions.
[2023-12-22 23:49:37,617 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59)
[2023-12-22 23:49:37,618 INFO  L276                IsEmpty]: Start isEmpty. Operand 260 states and 409 transitions.
[2023-12-22 23:49:37,621 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 357
[2023-12-22 23:49:37,621 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 23:49:37,622 INFO  L195           NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 23:49:37,665 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
[2023-12-22 23:49:37,843 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
[2023-12-22 23:49:37,844 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 23:49:37,844 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 23:49:37,845 INFO  L85        PathProgramCache]: Analyzing trace with hash -859127881, now seen corresponding path program 1 times
[2023-12-22 23:49:37,845 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 23:49:37,845 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1361447817]
[2023-12-22 23:49:37,845 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 23:49:37,845 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
[2023-12-22 23:49:37,846 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 23:49:37,861 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)
[2023-12-22 23:49:37,909 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
[2023-12-22 23:49:39,353 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 23:49:39,421 INFO  L262         TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 9 conjunts are in the unsatisfiable core
[2023-12-22 23:49:39,444 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 23:49:48,799 INFO  L134       CoverageAnalysis]: Checked inductivity of 6844 backedges. 118 proven. 342 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked.
[2023-12-22 23:49:48,799 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-22 23:49:49,407 INFO  L134       CoverageAnalysis]: Checked inductivity of 6844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked.
[2023-12-22 23:49:49,407 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 23:49:49,407 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1361447817]
[2023-12-22 23:49:49,407 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1361447817] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-22 23:49:49,407 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-22 23:49:49,407 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12
[2023-12-22 23:49:49,408 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254392000]
[2023-12-22 23:49:49,408 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 23:49:49,408 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-22 23:49:49,408 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 23:49:49,409 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-22 23:49:49,409 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132
[2023-12-22 23:49:49,409 INFO  L87              Difference]: Start difference. First operand 260 states and 409 transitions. Second operand  has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59)
[2023-12-22 23:49:52,718 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.05s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 23:49:55,378 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 23:49:55,570 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 23:49:55,570 INFO  L93              Difference]: Finished difference Result 424 states and 664 transitions.
[2023-12-22 23:49:55,571 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-22 23:49:55,571 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) Word has length 356
[2023-12-22 23:49:55,572 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 23:49:55,574 INFO  L225             Difference]: With dead ends: 424
[2023-12-22 23:49:55,574 INFO  L226             Difference]: Without dead ends: 286
[2023-12-22 23:49:55,574 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 711 GetRequests, 700 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156
[2023-12-22 23:49:55,575 INFO  L413           NwaCegarLoop]: 205 mSDtfsCounter, 48 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time
[2023-12-22 23:49:55,575 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 611 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time]
[2023-12-22 23:49:55,576 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 286 states.
[2023-12-22 23:49:55,631 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 263.
[2023-12-22 23:49:55,632 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 263 states, 140 states have (on average 1.2642857142857142) internal successors, (177), 140 states have internal predecessors, (177), 118 states have call successors, (118), 4 states have call predecessors, (118), 4 states have return successors, (118), 118 states have call predecessors, (118), 118 states have call successors, (118)
[2023-12-22 23:49:55,638 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 413 transitions.
[2023-12-22 23:49:55,638 INFO  L78                 Accepts]: Start accepts. Automaton has 263 states and 413 transitions. Word has length 356
[2023-12-22 23:49:55,644 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 23:49:55,644 INFO  L495      AbstractCegarLoop]: Abstraction has 263 states and 413 transitions.
[2023-12-22 23:49:55,644 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59)
[2023-12-22 23:49:55,644 INFO  L276                IsEmpty]: Start isEmpty. Operand 263 states and 413 transitions.
[2023-12-22 23:49:55,661 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 357
[2023-12-22 23:49:55,662 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 23:49:55,662 INFO  L195           NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 23:49:55,691 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
[2023-12-22 23:49:55,862 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
[2023-12-22 23:49:55,863 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 23:49:55,864 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 23:49:55,864 INFO  L85        PathProgramCache]: Analyzing trace with hash -1252154891, now seen corresponding path program 1 times
[2023-12-22 23:49:55,865 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 23:49:55,865 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1994212143]
[2023-12-22 23:49:55,865 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 23:49:55,865 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
[2023-12-22 23:49:55,865 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 23:49:55,885 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)
[2023-12-22 23:49:55,892 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
[2023-12-22 23:49:57,366 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 23:49:57,432 INFO  L262         TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 23:49:57,436 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 23:49:57,559 INFO  L134       CoverageAnalysis]: Checked inductivity of 6844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked.
[2023-12-22 23:49:57,559 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 23:49:57,560 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 23:49:57,560 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1994212143]
[2023-12-22 23:49:57,560 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1994212143] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 23:49:57,560 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 23:49:57,560 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 23:49:57,560 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100658385]
[2023-12-22 23:49:57,560 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 23:49:57,561 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 23:49:57,561 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 23:49:57,561 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 23:49:57,561 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 23:49:57,561 INFO  L87              Difference]: Start difference. First operand 263 states and 413 transitions. Second operand  has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59)
[2023-12-22 23:50:00,491 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.83s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 23:50:00,637 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 23:50:00,637 INFO  L93              Difference]: Finished difference Result 435 states and 676 transitions.
[2023-12-22 23:50:00,639 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 23:50:00,640 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) Word has length 356
[2023-12-22 23:50:00,640 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 23:50:00,642 INFO  L225             Difference]: With dead ends: 435
[2023-12-22 23:50:00,642 INFO  L226             Difference]: Without dead ends: 294
[2023-12-22 23:50:00,642 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 354 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 23:50:00,643 INFO  L413           NwaCegarLoop]: 235 mSDtfsCounter, 33 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time
[2023-12-22 23:50:00,643 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 439 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time]
[2023-12-22 23:50:00,644 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 294 states.
[2023-12-22 23:50:00,670 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 291.
[2023-12-22 23:50:00,671 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 291 states, 161 states have (on average 1.2670807453416149) internal successors, (204), 162 states have internal predecessors, (204), 124 states have call successors, (124), 5 states have call predecessors, (124), 5 states have return successors, (124), 123 states have call predecessors, (124), 124 states have call successors, (124)
[2023-12-22 23:50:00,672 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 452 transitions.
[2023-12-22 23:50:00,673 INFO  L78                 Accepts]: Start accepts. Automaton has 291 states and 452 transitions. Word has length 356
[2023-12-22 23:50:00,673 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 23:50:00,673 INFO  L495      AbstractCegarLoop]: Abstraction has 291 states and 452 transitions.
[2023-12-22 23:50:00,673 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59)
[2023-12-22 23:50:00,673 INFO  L276                IsEmpty]: Start isEmpty. Operand 291 states and 452 transitions.
[2023-12-22 23:50:00,675 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 357
[2023-12-22 23:50:00,675 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 23:50:00,675 INFO  L195           NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 23:50:00,703 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
[2023-12-22 23:50:00,888 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
[2023-12-22 23:50:00,889 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 23:50:00,889 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 23:50:00,889 INFO  L85        PathProgramCache]: Analyzing trace with hash -993989453, now seen corresponding path program 1 times
[2023-12-22 23:50:00,890 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 23:50:00,890 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [151270080]
[2023-12-22 23:50:00,890 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 23:50:00,890 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
[2023-12-22 23:50:00,890 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 23:50:00,891 INFO  L229       MonitoredProcess]: Starting monitored process 6 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)
[2023-12-22 23:50:00,892 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 (6)] Waiting until timeout for monitored process
[2023-12-22 23:50:02,450 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 23:50:02,517 INFO  L262         TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 45 conjunts are in the unsatisfiable core
[2023-12-22 23:50:02,526 INFO  L285         TraceCheckSpWp]: Computing forward predicates...