/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_normal_file-17.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-22 22:47:02,888 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-22 22:47:02,949 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 22:47:02,952 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-22 22:47:02,953 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-22 22:47:02,974 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-22 22:47:02,974 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-22 22:47:02,975 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-22 22:47:02,975 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-22 22:47:02,978 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-22 22:47:02,978 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-22 22:47:02,978 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-22 22:47:02,979 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-22 22:47:02,980 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-22 22:47:02,980 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-22 22:47:02,980 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-22 22:47:02,981 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-22 22:47:02,981 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-22 22:47:02,981 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-22 22:47:02,982 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-22 22:47:02,982 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-22 22:47:02,982 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-22 22:47:02,982 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-22 22:47:02,983 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-22 22:47:02,983 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-22 22:47:02,983 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-22 22:47:02,983 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-22 22:47:02,983 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-22 22:47:02,983 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-22 22:47:02,983 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-22 22:47:02,984 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-22 22:47:02,984 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-22 22:47:02,984 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-22 22:47:02,985 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-22 22:47:02,985 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 22:47:02,985 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-22 22:47:02,985 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-22 22:47:02,985 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-22 22:47:02,985 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-22 22:47:02,985 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-22 22:47:02,985 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-22 22:47:02,986 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-22 22:47:02,986 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-22 22:47:02,986 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-22 22:47:02,986 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-22 22:47:02,986 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-22 22:47:02,986 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-22 22:47:03,176 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-22 22:47:03,192 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-22 22:47:03,194 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-22 22:47:03,195 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-22 22:47:03,195 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-22 22:47:03,196 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-17.i
[2023-12-22 22:47:04,120 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-22 22:47:04,268 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-22 22:47:04,269 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-17.i
[2023-12-22 22:47:04,274 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/665146887/4d071def4f25478a9e5725965f1d1fa6/FLAGfadd3b48e
[2023-12-22 22:47:04,283 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/665146887/4d071def4f25478a9e5725965f1d1fa6
[2023-12-22 22:47:04,285 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-22 22:47:04,286 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-22 22:47:04,286 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-22 22:47:04,287 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-22 22:47:04,290 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-22 22:47:04,290 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 10:47:04" (1/1) ...
[2023-12-22 22:47:04,291 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7033432b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:47:04, skipping insertion in model container
[2023-12-22 22:47:04,291 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 10:47:04" (1/1) ...
[2023-12-22 22:47:04,310 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-22 22:47:04,410 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_normal_file-17.i[913,926]
[2023-12-22 22:47:04,442 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 22:47:04,452 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-22 22:47:04,462 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_normal_file-17.i[913,926]
[2023-12-22 22:47:04,483 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 22:47:04,494 INFO  L206         MainTranslator]: Completed translation
[2023-12-22 22:47:04,495 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:47:04 WrapperNode
[2023-12-22 22:47:04,495 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-22 22:47:04,496 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-22 22:47:04,496 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-22 22:47:04,496 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-22 22:47:04,500 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:47:04" (1/1) ...
[2023-12-22 22:47:04,508 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:47:04" (1/1) ...
[2023-12-22 22:47:04,530 INFO  L138                Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 129
[2023-12-22 22:47:04,530 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-22 22:47:04,531 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-22 22:47:04,531 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-22 22:47:04,531 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-22 22:47:04,538 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:47:04" (1/1) ...
[2023-12-22 22:47:04,538 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:47:04" (1/1) ...
[2023-12-22 22:47:04,547 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:47:04" (1/1) ...
[2023-12-22 22:47:04,556 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 22:47:04,556 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:47:04" (1/1) ...
[2023-12-22 22:47:04,557 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:47:04" (1/1) ...
[2023-12-22 22:47:04,563 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:47:04" (1/1) ...
[2023-12-22 22:47:04,565 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:47:04" (1/1) ...
[2023-12-22 22:47:04,567 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:47:04" (1/1) ...
[2023-12-22 22:47:04,568 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:47:04" (1/1) ...
[2023-12-22 22:47:04,570 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-22 22:47:04,571 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-22 22:47:04,571 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-22 22:47:04,571 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-22 22:47:04,572 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:47:04" (1/1) ...
[2023-12-22 22:47:04,575 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 22:47:04,585 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-22 22:47:04,606 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 22:47:04,627 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 22:47:04,631 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-22 22:47:04,632 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-22 22:47:04,632 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-22 22:47:04,632 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-22 22:47:04,632 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-22 22:47:04,632 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-22 22:47:04,686 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-22 22:47:04,688 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-22 22:47:05,248 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-22 22:47:05,280 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-22 22:47:05,281 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-22 22:47:05,281 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 10:47:05 BoogieIcfgContainer
[2023-12-22 22:47:05,281 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-22 22:47:05,283 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-22 22:47:05,283 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-22 22:47:05,287 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-22 22:47:05,287 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 10:47:04" (1/3) ...
[2023-12-22 22:47:05,287 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48d1a733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 10:47:05, skipping insertion in model container
[2023-12-22 22:47:05,300 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:47:04" (2/3) ...
[2023-12-22 22:47:05,300 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48d1a733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 10:47:05, skipping insertion in model container
[2023-12-22 22:47:05,300 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 10:47:05" (3/3) ...
[2023-12-22 22:47:05,301 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_normal_file-17.i
[2023-12-22 22:47:05,313 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-22 22:47:05,313 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-22 22:47:05,351 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-22 22:47:05,357 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;@607505d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-22 22:47:05,357 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-22 22:47:05,360 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 55 states, 34 states have (on average 1.4411764705882353) internal successors, (49), 35 states have internal predecessors, (49), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2023-12-22 22:47:05,371 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 116
[2023-12-22 22:47:05,371 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 22:47:05,371 INFO  L195           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:47:05,372 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 22:47:05,375 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 22:47:05,375 INFO  L85        PathProgramCache]: Analyzing trace with hash 836835348, now seen corresponding path program 1 times
[2023-12-22 22:47:05,383 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 22:47:05,384 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1651307728]
[2023-12-22 22:47:05,384 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 22:47:05,384 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 22:47:05,384 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 22:47:05,386 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 22:47:05,394 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 22:47:05,574 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 22:47:05,580 INFO  L262         TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-22 22:47:05,605 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 22:47:05,634 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 298 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked.
[2023-12-22 22:47:05,634 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 22:47:05,635 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 22:47:05,635 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1651307728]
[2023-12-22 22:47:05,635 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1651307728] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 22:47:05,635 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 22:47:05,635 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 22:47:05,640 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478152903]
[2023-12-22 22:47:05,641 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 22:47:05,645 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-22 22:47:05,645 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 22:47:05,669 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-22 22:47:05,670 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-22 22:47:05,671 INFO  L87              Difference]: Start difference. First operand  has 55 states, 34 states have (on average 1.4411764705882353) internal successors, (49), 35 states have internal predecessors, (49), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand  has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18)
[2023-12-22 22:47:05,821 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 22:47:05,821 INFO  L93              Difference]: Finished difference Result 107 states and 186 transitions.
[2023-12-22 22:47:05,831 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-22 22:47:05,832 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 115
[2023-12-22 22:47:05,833 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 22:47:05,837 INFO  L225             Difference]: With dead ends: 107
[2023-12-22 22:47:05,837 INFO  L226             Difference]: Without dead ends: 53
[2023-12-22 22:47:05,839 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-22 22:47:05,841 INFO  L413           NwaCegarLoop]: 77 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-22 22:47:05,842 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-22 22:47:05,852 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 53 states.
[2023-12-22 22:47:05,865 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53.
[2023-12-22 22:47:05,866 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 53 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 33 states have internal predecessors, (44), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2023-12-22 22:47:05,868 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 80 transitions.
[2023-12-22 22:47:05,868 INFO  L78                 Accepts]: Start accepts. Automaton has 53 states and 80 transitions. Word has length 115
[2023-12-22 22:47:05,869 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 22:47:05,869 INFO  L495      AbstractCegarLoop]: Abstraction has 53 states and 80 transitions.
[2023-12-22 22:47:05,869 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18)
[2023-12-22 22:47:05,869 INFO  L276                IsEmpty]: Start isEmpty. Operand 53 states and 80 transitions.
[2023-12-22 22:47:05,871 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 116
[2023-12-22 22:47:05,871 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 22:47:05,872 INFO  L195           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:47:05,878 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
[2023-12-22 22:47:06,077 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 22:47:06,077 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 22:47:06,078 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 22:47:06,078 INFO  L85        PathProgramCache]: Analyzing trace with hash 1255107480, now seen corresponding path program 1 times
[2023-12-22 22:47:06,079 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 22:47:06,079 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1312142237]
[2023-12-22 22:47:06,079 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 22:47:06,079 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 22:47:06,079 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 22:47:06,083 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 22:47:06,128 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 22:47:06,237 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 22:47:06,242 INFO  L262         TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-22 22:47:06,251 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 22:47:06,470 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked.
[2023-12-22 22:47:06,470 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 22:47:06,471 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 22:47:06,474 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1312142237]
[2023-12-22 22:47:06,474 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1312142237] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 22:47:06,474 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 22:47:06,474 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-22 22:47:06,475 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389665640]
[2023-12-22 22:47:06,475 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 22:47:06,477 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-22 22:47:06,477 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 22:47:06,477 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-22 22:47:06,477 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-22 22:47:06,478 INFO  L87              Difference]: Start difference. First operand 53 states and 80 transitions. Second operand  has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)
[2023-12-22 22:47:07,009 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 22:47:07,009 INFO  L93              Difference]: Finished difference Result 158 states and 239 transitions.
[2023-12-22 22:47:07,021 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-22 22:47:07,022 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 115
[2023-12-22 22:47:07,022 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 22:47:07,023 INFO  L225             Difference]: With dead ends: 158
[2023-12-22 22:47:07,023 INFO  L226             Difference]: Without dead ends: 106
[2023-12-22 22:47:07,024 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2023-12-22 22:47:07,025 INFO  L413           NwaCegarLoop]: 73 mSDtfsCounter, 43 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2023-12-22 22:47:07,025 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 251 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2023-12-22 22:47:07,026 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 106 states.
[2023-12-22 22:47:07,048 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 88.
[2023-12-22 22:47:07,049 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 88 states, 49 states have (on average 1.2244897959183674) internal successors, (60), 49 states have internal predecessors, (60), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36)
[2023-12-22 22:47:07,052 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 132 transitions.
[2023-12-22 22:47:07,052 INFO  L78                 Accepts]: Start accepts. Automaton has 88 states and 132 transitions. Word has length 115
[2023-12-22 22:47:07,054 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 22:47:07,054 INFO  L495      AbstractCegarLoop]: Abstraction has 88 states and 132 transitions.
[2023-12-22 22:47:07,054 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)
[2023-12-22 22:47:07,054 INFO  L276                IsEmpty]: Start isEmpty. Operand 88 states and 132 transitions.
[2023-12-22 22:47:07,059 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 117
[2023-12-22 22:47:07,059 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 22:47:07,059 INFO  L195           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:47:07,064 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0
[2023-12-22 22:47:07,263 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 22:47:07,264 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 22:47:07,264 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 22:47:07,264 INFO  L85        PathProgramCache]: Analyzing trace with hash -725064822, now seen corresponding path program 1 times
[2023-12-22 22:47:07,265 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 22:47:07,265 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [828847098]
[2023-12-22 22:47:07,265 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 22:47:07,265 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 22:47:07,265 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 22:47:07,267 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 22:47:07,268 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 22:47:07,379 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 22:47:07,384 INFO  L262         TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 11 conjunts are in the unsatisfiable core
[2023-12-22 22:47:07,388 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 22:47:07,943 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 362 proven. 45 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked.
[2023-12-22 22:47:07,944 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-22 22:47:08,262 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 51 proven. 48 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked.
[2023-12-22 22:47:08,262 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 22:47:08,262 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [828847098]
[2023-12-22 22:47:08,262 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [828847098] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-22 22:47:08,263 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-22 22:47:08,263 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 20
[2023-12-22 22:47:08,263 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743501938]
[2023-12-22 22:47:08,263 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-22 22:47:08,263 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2023-12-22 22:47:08,264 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 22:47:08,264 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2023-12-22 22:47:08,265 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380
[2023-12-22 22:47:08,265 INFO  L87              Difference]: Start difference. First operand 88 states and 132 transitions. Second operand  has 20 states, 20 states have (on average 3.45) internal successors, (69), 20 states have internal predecessors, (69), 6 states have call successors, (36), 4 states have call predecessors, (36), 8 states have return successors, (36), 6 states have call predecessors, (36), 6 states have call successors, (36)
[2023-12-22 22:47:09,729 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 22:47:09,729 INFO  L93              Difference]: Finished difference Result 252 states and 354 transitions.
[2023-12-22 22:47:09,731 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. 
[2023-12-22 22:47:09,732 INFO  L78                 Accepts]: Start accepts. Automaton has  has 20 states, 20 states have (on average 3.45) internal successors, (69), 20 states have internal predecessors, (69), 6 states have call successors, (36), 4 states have call predecessors, (36), 8 states have return successors, (36), 6 states have call predecessors, (36), 6 states have call successors, (36) Word has length 116
[2023-12-22 22:47:09,732 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 22:47:09,734 INFO  L225             Difference]: With dead ends: 252
[2023-12-22 22:47:09,734 INFO  L226             Difference]: Without dead ends: 200
[2023-12-22 22:47:09,735 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=445, Invalid=1195, Unknown=0, NotChecked=0, Total=1640
[2023-12-22 22:47:09,736 INFO  L413           NwaCegarLoop]: 63 mSDtfsCounter, 401 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2023-12-22 22:47:09,736 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 450 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2023-12-22 22:47:09,737 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 200 states.
[2023-12-22 22:47:09,766 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 158.
[2023-12-22 22:47:09,768 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 158 states, 94 states have (on average 1.1595744680851063) internal successors, (109), 94 states have internal predecessors, (109), 54 states have call successors, (54), 9 states have call predecessors, (54), 9 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54)
[2023-12-22 22:47:09,771 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 217 transitions.
[2023-12-22 22:47:09,771 INFO  L78                 Accepts]: Start accepts. Automaton has 158 states and 217 transitions. Word has length 116
[2023-12-22 22:47:09,773 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 22:47:09,773 INFO  L495      AbstractCegarLoop]: Abstraction has 158 states and 217 transitions.
[2023-12-22 22:47:09,773 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 20 states, 20 states have (on average 3.45) internal successors, (69), 20 states have internal predecessors, (69), 6 states have call successors, (36), 4 states have call predecessors, (36), 8 states have return successors, (36), 6 states have call predecessors, (36), 6 states have call successors, (36)
[2023-12-22 22:47:09,774 INFO  L276                IsEmpty]: Start isEmpty. Operand 158 states and 217 transitions.
[2023-12-22 22:47:09,775 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 117
[2023-12-22 22:47:09,775 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 22:47:09,776 INFO  L195           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:47:09,786 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 22:47:09,986 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 22:47:09,986 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 22:47:09,987 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 22:47:09,987 INFO  L85        PathProgramCache]: Analyzing trace with hash 84281804, now seen corresponding path program 1 times
[2023-12-22 22:47:09,987 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 22:47:09,987 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1404024978]
[2023-12-22 22:47:09,987 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 22:47:09,988 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 22:47:09,988 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 22:47:09,993 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 22:47:09,994 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 22:47:10,104 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 22:47:10,109 INFO  L262         TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 28 conjunts are in the unsatisfiable core
[2023-12-22 22:47:10,113 INFO  L285         TraceCheckSpWp]: Computing forward predicates...