/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-5.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 13:12:44,522 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 13:12:44,569 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 13:12:44,572 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 13:12:44,572 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 13:12:44,587 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 13:12:44,587 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 13:12:44,588 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 13:12:44,588 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 13:12:44,588 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 13:12:44,589 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 13:12:44,589 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 13:12:44,589 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 13:12:44,590 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 13:12:44,590 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 13:12:44,590 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 13:12:44,590 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 13:12:44,590 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 13:12:44,591 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 13:12:44,591 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 13:12:44,591 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 13:12:44,591 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 13:12:44,592 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 13:12:44,592 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 13:12:44,592 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 13:12:44,592 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 13:12:44,592 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 13:12:44,593 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 13:12:44,593 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 13:12:44,593 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 13:12:44,593 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 13:12:44,593 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 13:12:44,593 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 13:12:44,594 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 13:12:44,594 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 13:12:44,594 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 13:12:44,594 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 13:12:44,594 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 13:12:44,595 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 13:12:44,595 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 13:12:44,595 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 13:12:44,596 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 13:12:44,596 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 13:12:44,596 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 13:12:44,596 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 13:12:44,596 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 13:12:44,597 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 13:12:44,780 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 13:12:44,797 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 13:12:44,799 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 13:12:44,799 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 13:12:44,800 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 13:12:44,801 INFO  L431   ainManager$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-5.i
[2023-12-23 13:12:45,820 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 13:12:46,073 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 13:12:46,074 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-5.i
[2023-12-23 13:12:46,082 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c28fea895/05366d39f8b44a08980adea75d3c512a/FLAG01b2423b4
[2023-12-23 13:12:46,098 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c28fea895/05366d39f8b44a08980adea75d3c512a
[2023-12-23 13:12:46,101 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 13:12:46,103 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 13:12:46,104 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 13:12:46,105 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 13:12:46,109 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 13:12:46,110 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:12:46" (1/1) ...
[2023-12-23 13:12:46,111 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@795b3972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:12:46, skipping insertion in model container
[2023-12-23 13:12:46,111 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:12:46" (1/1) ...
[2023-12-23 13:12:46,146 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 13:12:46,265 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-5.i[918,931]
[2023-12-23 13:12:46,320 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 13:12:46,332 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 13:12:46,344 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-5.i[918,931]
[2023-12-23 13:12:46,380 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 13:12:46,397 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 13:12:46,398 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:12:46 WrapperNode
[2023-12-23 13:12:46,398 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 13:12:46,398 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 13:12:46,398 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 13:12:46,399 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 13:12:46,403 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:12:46" (1/1) ...
[2023-12-23 13:12:46,412 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:12:46" (1/1) ...
[2023-12-23 13:12:46,433 INFO  L138                Inliner]: procedures = 27, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 197
[2023-12-23 13:12:46,433 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 13:12:46,434 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 13:12:46,434 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 13:12:46,434 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 13:12:46,441 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:12:46" (1/1) ...
[2023-12-23 13:12:46,441 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:12:46" (1/1) ...
[2023-12-23 13:12:46,445 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:12:46" (1/1) ...
[2023-12-23 13:12:46,455 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 13:12:46,455 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:12:46" (1/1) ...
[2023-12-23 13:12:46,455 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:12:46" (1/1) ...
[2023-12-23 13:12:46,464 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:12:46" (1/1) ...
[2023-12-23 13:12:46,466 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:12:46" (1/1) ...
[2023-12-23 13:12:46,468 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:12:46" (1/1) ...
[2023-12-23 13:12:46,469 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:12:46" (1/1) ...
[2023-12-23 13:12:46,472 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 13:12:46,472 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 13:12:46,472 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 13:12:46,473 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 13:12:46,473 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:12:46" (1/1) ...
[2023-12-23 13:12:46,477 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 13:12:46,485 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 13:12:46,494 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 13:12:46,527 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 13:12:46,545 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 13:12:46,545 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 13:12:46,545 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 13:12:46,546 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 13:12:46,546 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 13:12:46,546 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 13:12:46,626 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 13:12:46,627 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 13:12:47,633 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 13:12:47,723 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 13:12:47,723 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 13:12:47,724 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:12:47 BoogieIcfgContainer
[2023-12-23 13:12:47,724 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 13:12:47,726 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 13:12:47,726 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 13:12:47,728 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 13:12:47,728 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 01:12:46" (1/3) ...
[2023-12-23 13:12:47,729 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8585bd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:12:47, skipping insertion in model container
[2023-12-23 13:12:47,729 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:12:46" (2/3) ...
[2023-12-23 13:12:47,729 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8585bd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:12:47, skipping insertion in model container
[2023-12-23 13:12:47,729 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:12:47" (3/3) ...
[2023-12-23 13:12:47,730 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-co_file-5.i
[2023-12-23 13:12:47,741 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 13:12:47,742 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 13:12:47,770 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 13:12:47,774 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;@65abbef1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 13:12:47,774 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 13:12:47,777 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 80 states, 51 states have (on average 1.4705882352941178) internal successors, (75), 52 states have internal predecessors, (75), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26)
[2023-12-23 13:12:47,786 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 170
[2023-12-23 13:12:47,786 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 13:12:47,787 INFO  L195           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:12:47,787 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 13:12:47,790 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 13:12:47,790 INFO  L85        PathProgramCache]: Analyzing trace with hash -1529444578, now seen corresponding path program 1 times
[2023-12-23 13:12:47,798 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 13:12:47,798 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1809278644]
[2023-12-23 13:12:47,799 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 13:12:47,799 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 13:12:47,799 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 13:12:47,801 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 13:12:47,809 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 13:12:48,135 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 13:12:48,151 INFO  L262         TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 13:12:48,159 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 13:12:48,214 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 666 proven. 0 refuted. 0 times theorem prover too weak. 634 trivial. 0 not checked.
[2023-12-23 13:12:48,214 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 13:12:48,214 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 13:12:48,215 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1809278644]
[2023-12-23 13:12:48,215 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1809278644] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 13:12:48,215 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 13:12:48,215 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 13:12:48,216 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938139715]
[2023-12-23 13:12:48,217 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 13:12:48,219 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 13:12:48,220 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 13:12:48,244 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 13:12:48,244 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 13:12:48,246 INFO  L87              Difference]: Start difference. First operand  has 80 states, 51 states have (on average 1.4705882352941178) internal successors, (75), 52 states have internal predecessors, (75), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand  has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26)
[2023-12-23 13:12:48,596 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 13:12:48,597 INFO  L93              Difference]: Finished difference Result 157 states and 278 transitions.
[2023-12-23 13:12:48,609 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 13:12:48,610 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 169
[2023-12-23 13:12:48,610 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 13:12:48,616 INFO  L225             Difference]: With dead ends: 157
[2023-12-23 13:12:48,616 INFO  L226             Difference]: Without dead ends: 78
[2023-12-23 13:12:48,618 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 168 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 13:12:48,620 INFO  L413           NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2023-12-23 13:12:48,621 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 117 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2023-12-23 13:12:48,631 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 78 states.
[2023-12-23 13:12:48,647 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78.
[2023-12-23 13:12:48,648 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 78 states, 50 states have (on average 1.36) internal successors, (68), 50 states have internal predecessors, (68), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26)
[2023-12-23 13:12:48,649 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 120 transitions.
[2023-12-23 13:12:48,650 INFO  L78                 Accepts]: Start accepts. Automaton has 78 states and 120 transitions. Word has length 169
[2023-12-23 13:12:48,650 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 13:12:48,651 INFO  L495      AbstractCegarLoop]: Abstraction has 78 states and 120 transitions.
[2023-12-23 13:12:48,651 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26)
[2023-12-23 13:12:48,651 INFO  L276                IsEmpty]: Start isEmpty. Operand 78 states and 120 transitions.
[2023-12-23 13:12:48,653 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 171
[2023-12-23 13:12:48,653 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 13:12:48,653 INFO  L195           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:12:48,663 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 13:12:48,863 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 13:12:48,864 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 13:12:48,864 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 13:12:48,864 INFO  L85        PathProgramCache]: Analyzing trace with hash 1972176563, now seen corresponding path program 1 times
[2023-12-23 13:12:48,866 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 13:12:48,866 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [909352647]
[2023-12-23 13:12:48,866 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 13:12:48,866 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 13:12:48,866 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 13:12:48,867 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 13:12:48,871 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 13:12:49,161 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 13:12:49,175 INFO  L262         TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 13:12:49,179 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 13:12:49,580 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked.
[2023-12-23 13:12:49,580 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 13:12:49,581 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 13:12:49,583 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [909352647]
[2023-12-23 13:12:49,583 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [909352647] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 13:12:49,584 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 13:12:49,584 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 13:12:49,584 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019449991]
[2023-12-23 13:12:49,585 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 13:12:49,586 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 13:12:49,586 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 13:12:49,587 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 13:12:49,587 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 13:12:49,588 INFO  L87              Difference]: Start difference. First operand 78 states and 120 transitions. Second operand  has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26)
[2023-12-23 13:12:51,045 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 13:12:51,045 INFO  L93              Difference]: Finished difference Result 224 states and 347 transitions.
[2023-12-23 13:12:51,052 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 13:12:51,052 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 170
[2023-12-23 13:12:51,053 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 13:12:51,055 INFO  L225             Difference]: With dead ends: 224
[2023-12-23 13:12:51,055 INFO  L226             Difference]: Without dead ends: 147
[2023-12-23 13:12:51,055 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 168 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 13:12:51,056 INFO  L413           NwaCegarLoop]: 102 mSDtfsCounter, 28 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2023-12-23 13:12:51,057 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 199 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2023-12-23 13:12:51,064 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 147 states.
[2023-12-23 13:12:51,076 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 138.
[2023-12-23 13:12:51,077 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 138 states, 83 states have (on average 1.2891566265060241) internal successors, (107), 83 states have internal predecessors, (107), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52)
[2023-12-23 13:12:51,078 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 211 transitions.
[2023-12-23 13:12:51,078 INFO  L78                 Accepts]: Start accepts. Automaton has 138 states and 211 transitions. Word has length 170
[2023-12-23 13:12:51,079 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 13:12:51,079 INFO  L495      AbstractCegarLoop]: Abstraction has 138 states and 211 transitions.
[2023-12-23 13:12:51,079 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26)
[2023-12-23 13:12:51,079 INFO  L276                IsEmpty]: Start isEmpty. Operand 138 states and 211 transitions.
[2023-12-23 13:12:51,081 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 172
[2023-12-23 13:12:51,081 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 13:12:51,081 INFO  L195           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:12:51,096 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 13:12:51,296 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 13:12:51,296 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 13:12:51,297 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 13:12:51,297 INFO  L85        PathProgramCache]: Analyzing trace with hash -1885493025, now seen corresponding path program 1 times
[2023-12-23 13:12:51,298 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 13:12:51,298 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1328601970]
[2023-12-23 13:12:51,298 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 13:12:51,298 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 13:12:51,298 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 13:12:51,299 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 13:12:51,301 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 13:12:51,593 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 13:12:51,608 INFO  L262         TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 13:12:51,612 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 13:12:51,834 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked.
[2023-12-23 13:12:51,834 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 13:12:51,834 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 13:12:51,836 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1328601970]
[2023-12-23 13:12:51,838 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1328601970] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 13:12:51,839 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 13:12:51,840 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 13:12:51,844 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647237894]
[2023-12-23 13:12:51,844 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 13:12:51,845 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 13:12:51,845 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 13:12:51,845 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 13:12:51,845 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 13:12:51,845 INFO  L87              Difference]: Start difference. First operand 138 states and 211 transitions. Second operand  has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26)
[2023-12-23 13:12:52,336 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 13:12:52,336 INFO  L93              Difference]: Finished difference Result 290 states and 445 transitions.
[2023-12-23 13:12:52,338 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 13:12:52,339 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 171
[2023-12-23 13:12:52,339 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 13:12:52,340 INFO  L225             Difference]: With dead ends: 290
[2023-12-23 13:12:52,341 INFO  L226             Difference]: Without dead ends: 213
[2023-12-23 13:12:52,341 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 169 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 13:12:52,342 INFO  L413           NwaCegarLoop]: 115 mSDtfsCounter, 24 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2023-12-23 13:12:52,342 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 225 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2023-12-23 13:12:52,343 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 213 states.
[2023-12-23 13:12:52,357 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 211.
[2023-12-23 13:12:52,358 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 211 states, 129 states have (on average 1.2945736434108528) internal successors, (167), 129 states have internal predecessors, (167), 78 states have call successors, (78), 3 states have call predecessors, (78), 3 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78)
[2023-12-23 13:12:52,359 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 323 transitions.
[2023-12-23 13:12:52,359 INFO  L78                 Accepts]: Start accepts. Automaton has 211 states and 323 transitions. Word has length 171
[2023-12-23 13:12:52,360 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 13:12:52,360 INFO  L495      AbstractCegarLoop]: Abstraction has 211 states and 323 transitions.
[2023-12-23 13:12:52,360 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26)
[2023-12-23 13:12:52,360 INFO  L276                IsEmpty]: Start isEmpty. Operand 211 states and 323 transitions.
[2023-12-23 13:12:52,362 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 172
[2023-12-23 13:12:52,362 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 13:12:52,362 INFO  L195           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:12:52,378 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 13:12:52,576 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 13:12:52,576 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 13:12:52,577 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 13:12:52,577 INFO  L85        PathProgramCache]: Analyzing trace with hash -110485663, now seen corresponding path program 1 times
[2023-12-23 13:12:52,577 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 13:12:52,578 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1943348128]
[2023-12-23 13:12:52,578 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 13:12:52,578 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 13:12:52,578 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 13:12:52,579 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 13:12:52,581 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 13:12:52,874 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 13:12:52,890 INFO  L262         TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 12 conjunts are in the unsatisfiable core
[2023-12-23 13:12:52,895 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 13:12:54,520 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 380 proven. 132 refuted. 0 times theorem prover too weak. 788 trivial. 0 not checked.
[2023-12-23 13:12:54,521 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 13:12:55,341 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 13:12:55,342 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1943348128]
[2023-12-23 13:12:55,342 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1943348128] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 13:12:55,342 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [341668293]
[2023-12-23 13:12:55,342 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 13:12:55,342 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-23 13:12:55,342 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-23 13:12:55,373 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 13:12:55,378 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 13:12:56,754 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 13:12:56,777 INFO  L262         TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 11 conjunts are in the unsatisfiable core
[2023-12-23 13:12:56,780 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 13:12:57,624 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 380 proven. 132 refuted. 0 times theorem prover too weak. 788 trivial. 0 not checked.
[2023-12-23 13:12:57,624 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 13:12:58,196 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [341668293] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 13:12:58,196 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 13:12:58,196 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 14
[2023-12-23 13:12:58,196 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569541855]
[2023-12-23 13:12:58,197 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 13:12:58,197 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2023-12-23 13:12:58,197 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 13:12:58,198 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2023-12-23 13:12:58,198 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=366, Unknown=0, NotChecked=0, Total=462
[2023-12-23 13:12:58,198 INFO  L87              Difference]: Start difference. First operand 211 states and 323 transitions. Second operand  has 15 states, 15 states have (on average 4.4) internal successors, (66), 14 states have internal predecessors, (66), 3 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26)
[2023-12-23 13:13:01,596 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 13:13:01,596 INFO  L93              Difference]: Finished difference Result 580 states and 861 transitions.
[2023-12-23 13:13:01,596 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. 
[2023-12-23 13:13:01,596 INFO  L78                 Accepts]: Start accepts. Automaton has  has 15 states, 15 states have (on average 4.4) internal successors, (66), 14 states have internal predecessors, (66), 3 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) Word has length 171
[2023-12-23 13:13:01,597 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 13:13:01,599 INFO  L225             Difference]: With dead ends: 580
[2023-12-23 13:13:01,599 INFO  L226             Difference]: Without dead ends: 430
[2023-12-23 13:13:01,600 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 510 GetRequests, 481 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=219, Invalid=711, Unknown=0, NotChecked=0, Total=930
[2023-12-23 13:13:01,601 INFO  L413           NwaCegarLoop]: 70 mSDtfsCounter, 218 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time
[2023-12-23 13:13:01,601 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 610 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time]
[2023-12-23 13:13:01,602 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 430 states.
[2023-12-23 13:13:01,628 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 392.
[2023-12-23 13:13:01,634 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 392 states, 250 states have (on average 1.288) internal successors, (322), 250 states have internal predecessors, (322), 130 states have call successors, (130), 11 states have call predecessors, (130), 11 states have return successors, (130), 130 states have call predecessors, (130), 130 states have call successors, (130)
[2023-12-23 13:13:01,636 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 582 transitions.
[2023-12-23 13:13:01,636 INFO  L78                 Accepts]: Start accepts. Automaton has 392 states and 582 transitions. Word has length 171
[2023-12-23 13:13:01,637 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 13:13:01,638 INFO  L495      AbstractCegarLoop]: Abstraction has 392 states and 582 transitions.
[2023-12-23 13:13:01,638 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 15 states, 15 states have (on average 4.4) internal successors, (66), 14 states have internal predecessors, (66), 3 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26)
[2023-12-23 13:13:01,638 INFO  L276                IsEmpty]: Start isEmpty. Operand 392 states and 582 transitions.
[2023-12-23 13:13:01,640 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 172
[2023-12-23 13:13:01,640 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 13:13:01,640 INFO  L195           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:13:01,652 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 13:13:01,864 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 13:13:02,051 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 13:13:02,052 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 13:13:02,052 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 13:13:02,052 INFO  L85        PathProgramCache]: Analyzing trace with hash 698860963, now seen corresponding path program 1 times
[2023-12-23 13:13:02,053 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 13:13:02,053 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [284684527]
[2023-12-23 13:13:02,053 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 13:13:02,053 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 13:13:02,053 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 13:13:02,054 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 13:13:02,068 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 13:13:02,366 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 13:13:02,383 INFO  L262         TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 37 conjunts are in the unsatisfiable core
[2023-12-23 13:13:02,388 INFO  L285         TraceCheckSpWp]: Computing forward predicates...