/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_loopvsstraightlinecode_50-1loop_file-34.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-24 02:52:35,753 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-24 02:52:35,822 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-12-24 02:52:35,826 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-24 02:52:35,826 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-24 02:52:35,849 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-24 02:52:35,849 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-24 02:52:35,849 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-24 02:52:35,850 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-24 02:52:35,853 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-24 02:52:35,853 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-24 02:52:35,853 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-24 02:52:35,853 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-24 02:52:35,854 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-24 02:52:35,854 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-24 02:52:35,855 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-24 02:52:35,855 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-24 02:52:35,855 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-24 02:52:35,855 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-24 02:52:35,855 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-24 02:52:35,855 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-24 02:52:35,856 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-24 02:52:35,856 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-24 02:52:35,856 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-24 02:52:35,856 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-24 02:52:35,856 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-24 02:52:35,856 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-24 02:52:35,857 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-24 02:52:35,857 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-24 02:52:35,857 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-24 02:52:35,858 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-24 02:52:35,858 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-24 02:52:35,858 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-24 02:52:35,858 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-24 02:52:35,858 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-24 02:52:35,858 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-24 02:52:35,858 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-24 02:52:35,858 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-24 02:52:35,859 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-24 02:52:35,859 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-24 02:52:35,859 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-24 02:52:35,859 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-24 02:52:35,859 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-24 02:52:35,860 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-24 02:52:35,860 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-24 02:52:35,860 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-24 02:52:35,860 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-24 02:52:36,028 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-24 02:52:36,062 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-24 02:52:36,064 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-24 02:52:36,064 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-24 02:52:36,064 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-24 02:52:36,066 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-34.i
[2023-12-24 02:52:37,162 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-24 02:52:37,338 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-24 02:52:37,338 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-34.i
[2023-12-24 02:52:37,347 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a547e1b0/f1145c6b00e943f790d1ec27b3bdf128/FLAG29a0407d3
[2023-12-24 02:52:37,361 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a547e1b0/f1145c6b00e943f790d1ec27b3bdf128
[2023-12-24 02:52:37,363 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-24 02:52:37,364 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-24 02:52:37,365 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-24 02:52:37,365 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-24 02:52:37,372 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-24 02:52:37,373 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 02:52:37" (1/1) ...
[2023-12-24 02:52:37,374 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f3bc22c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:52:37, skipping insertion in model container
[2023-12-24 02:52:37,374 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 02:52:37" (1/1) ...
[2023-12-24 02:52:37,402 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-24 02:52:37,493 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_loopvsstraightlinecode_50-1loop_file-34.i[915,928]
[2023-12-24 02:52:37,558 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-24 02:52:37,572 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-24 02:52:37,584 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_loopvsstraightlinecode_50-1loop_file-34.i[915,928]
[2023-12-24 02:52:37,609 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-24 02:52:37,625 INFO  L206         MainTranslator]: Completed translation
[2023-12-24 02:52:37,625 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:52:37 WrapperNode
[2023-12-24 02:52:37,625 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-24 02:52:37,626 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-24 02:52:37,626 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-24 02:52:37,627 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-24 02:52:37,631 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:52:37" (1/1) ...
[2023-12-24 02:52:37,642 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:52:37" (1/1) ...
[2023-12-24 02:52:37,659 INFO  L138                Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 129
[2023-12-24 02:52:37,659 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-24 02:52:37,660 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-24 02:52:37,660 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-24 02:52:37,660 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-24 02:52:37,667 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:52:37" (1/1) ...
[2023-12-24 02:52:37,667 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:52:37" (1/1) ...
[2023-12-24 02:52:37,670 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:52:37" (1/1) ...
[2023-12-24 02:52:37,683 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].
[2023-12-24 02:52:37,684 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:52:37" (1/1) ...
[2023-12-24 02:52:37,684 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:52:37" (1/1) ...
[2023-12-24 02:52:37,690 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:52:37" (1/1) ...
[2023-12-24 02:52:37,692 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:52:37" (1/1) ...
[2023-12-24 02:52:37,693 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:52:37" (1/1) ...
[2023-12-24 02:52:37,694 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:52:37" (1/1) ...
[2023-12-24 02:52:37,696 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-24 02:52:37,697 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-24 02:52:37,697 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-24 02:52:37,697 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-24 02:52:37,698 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:52:37" (1/1) ...
[2023-12-24 02:52:37,701 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-24 02:52:37,710 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-24 02:52:37,725 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)
[2023-12-24 02:52:37,727 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
[2023-12-24 02:52:37,744 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-24 02:52:37,744 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-24 02:52:37,744 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-24 02:52:37,744 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-24 02:52:37,745 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-24 02:52:37,745 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-24 02:52:37,798 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-24 02:52:37,800 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-24 02:52:38,097 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-24 02:52:38,169 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-24 02:52:38,169 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-24 02:52:38,170 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 02:52:38 BoogieIcfgContainer
[2023-12-24 02:52:38,170 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-24 02:52:38,171 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-24 02:52:38,171 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-24 02:52:38,173 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-24 02:52:38,174 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 02:52:37" (1/3) ...
[2023-12-24 02:52:38,174 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23e05656 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 02:52:38, skipping insertion in model container
[2023-12-24 02:52:38,174 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:52:37" (2/3) ...
[2023-12-24 02:52:38,174 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23e05656 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 02:52:38, skipping insertion in model container
[2023-12-24 02:52:38,174 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 02:52:38" (3/3) ...
[2023-12-24 02:52:38,175 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-1loop_file-34.i
[2023-12-24 02:52:38,191 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-24 02:52:38,192 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-24 02:52:38,226 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-24 02:52:38,230 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;@3a66f35e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-24 02:52:38,230 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-24 02:52:38,232 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 46 states, 30 states have (on average 1.5333333333333334) internal successors, (46), 31 states have internal predecessors, (46), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13)
[2023-12-24 02:52:38,239 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 87
[2023-12-24 02:52:38,239 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 02:52:38,239 INFO  L195           NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 02:52:38,240 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 02:52:38,243 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 02:52:38,243 INFO  L85        PathProgramCache]: Analyzing trace with hash -1065140516, now seen corresponding path program 1 times
[2023-12-24 02:52:38,251 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 02:52:38,251 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [26683867]
[2023-12-24 02:52:38,251 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 02:52:38,252 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
[2023-12-24 02:52:38,252 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 02:52:38,254 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)
[2023-12-24 02:52:38,258 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
[2023-12-24 02:52:38,386 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 02:52:38,393 INFO  L262         TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-24 02:52:38,398 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 02:52:38,423 INFO  L134       CoverageAnalysis]: Checked inductivity of 312 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked.
[2023-12-24 02:52:38,423 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 02:52:38,423 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 02:52:38,424 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [26683867]
[2023-12-24 02:52:38,424 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [26683867] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 02:52:38,424 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 02:52:38,424 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-24 02:52:38,426 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014343869]
[2023-12-24 02:52:38,426 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 02:52:38,429 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-24 02:52:38,429 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 02:52:38,448 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-24 02:52:38,449 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-24 02:52:38,451 INFO  L87              Difference]: Start difference. First operand  has 46 states, 30 states have (on average 1.5333333333333334) internal successors, (46), 31 states have internal predecessors, (46), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13)
[2023-12-24 02:52:38,528 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 02:52:38,529 INFO  L93              Difference]: Finished difference Result 91 states and 156 transitions.
[2023-12-24 02:52:38,530 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-24 02:52:38,531 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 86
[2023-12-24 02:52:38,531 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 02:52:38,537 INFO  L225             Difference]: With dead ends: 91
[2023-12-24 02:52:38,537 INFO  L226             Difference]: Without dead ends: 44
[2023-12-24 02:52:38,541 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-24 02:52:38,543 INFO  L413           NwaCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-24 02:52:38,544 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-24 02:52:38,560 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 44 states.
[2023-12-24 02:52:38,575 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44.
[2023-12-24 02:52:38,576 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 44 states, 29 states have (on average 1.4137931034482758) internal successors, (41), 29 states have internal predecessors, (41), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13)
[2023-12-24 02:52:38,577 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 67 transitions.
[2023-12-24 02:52:38,578 INFO  L78                 Accepts]: Start accepts. Automaton has 44 states and 67 transitions. Word has length 86
[2023-12-24 02:52:38,578 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 02:52:38,578 INFO  L495      AbstractCegarLoop]: Abstraction has 44 states and 67 transitions.
[2023-12-24 02:52:38,578 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13)
[2023-12-24 02:52:38,579 INFO  L276                IsEmpty]: Start isEmpty. Operand 44 states and 67 transitions.
[2023-12-24 02:52:38,586 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 87
[2023-12-24 02:52:38,586 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 02:52:38,586 INFO  L195           NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 02:52:38,592 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
[2023-12-24 02:52:38,793 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
[2023-12-24 02:52:38,795 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 02:52:38,795 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 02:52:38,796 INFO  L85        PathProgramCache]: Analyzing trace with hash 1189755674, now seen corresponding path program 1 times
[2023-12-24 02:52:38,796 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 02:52:38,797 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [607551250]
[2023-12-24 02:52:38,797 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 02:52:38,797 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
[2023-12-24 02:52:38,798 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 02:52:38,799 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)
[2023-12-24 02:52:38,800 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
[2023-12-24 02:52:38,931 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 02:52:38,937 INFO  L262         TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-24 02:52:38,940 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 02:52:39,068 INFO  L134       CoverageAnalysis]: Checked inductivity of 312 backedges. 78 proven. 3 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked.
[2023-12-24 02:52:39,069 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 02:52:39,222 INFO  L134       CoverageAnalysis]: Checked inductivity of 312 backedges. 33 proven. 3 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked.
[2023-12-24 02:52:39,222 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 02:52:39,226 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [607551250]
[2023-12-24 02:52:39,226 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [607551250] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-24 02:52:39,226 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-24 02:52:39,226 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8
[2023-12-24 02:52:39,227 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679309159]
[2023-12-24 02:52:39,227 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-24 02:52:39,229 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-24 02:52:39,229 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 02:52:39,231 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-24 02:52:39,231 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2023-12-24 02:52:39,231 INFO  L87              Difference]: Start difference. First operand 44 states and 67 transitions. Second operand  has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15)
[2023-12-24 02:52:39,558 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 02:52:39,559 INFO  L93              Difference]: Finished difference Result 142 states and 209 transitions.
[2023-12-24 02:52:39,559 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2023-12-24 02:52:39,559 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 86
[2023-12-24 02:52:39,562 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 02:52:39,565 INFO  L225             Difference]: With dead ends: 142
[2023-12-24 02:52:39,565 INFO  L226             Difference]: Without dead ends: 99
[2023-12-24 02:52:39,566 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 164 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306
[2023-12-24 02:52:39,568 INFO  L413           NwaCegarLoop]: 69 mSDtfsCounter, 120 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-24 02:52:39,568 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 195 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-24 02:52:39,570 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 99 states.
[2023-12-24 02:52:39,591 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 93.
[2023-12-24 02:52:39,591 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 93 states, 62 states have (on average 1.3709677419354838) internal successors, (85), 62 states have internal predecessors, (85), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26)
[2023-12-24 02:52:39,595 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 137 transitions.
[2023-12-24 02:52:39,595 INFO  L78                 Accepts]: Start accepts. Automaton has 93 states and 137 transitions. Word has length 86
[2023-12-24 02:52:39,596 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 02:52:39,596 INFO  L495      AbstractCegarLoop]: Abstraction has 93 states and 137 transitions.
[2023-12-24 02:52:39,597 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15)
[2023-12-24 02:52:39,597 INFO  L276                IsEmpty]: Start isEmpty. Operand 93 states and 137 transitions.
[2023-12-24 02:52:39,603 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 87
[2023-12-24 02:52:39,603 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 02:52:39,603 INFO  L195           NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 02:52:39,611 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2023-12-24 02:52:39,808 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 02:52:39,810 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 02:52:39,810 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 02:52:39,810 INFO  L85        PathProgramCache]: Analyzing trace with hash 1890820252, now seen corresponding path program 1 times
[2023-12-24 02:52:39,811 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 02:52:39,811 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2138099648]
[2023-12-24 02:52:39,811 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 02:52:39,811 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
[2023-12-24 02:52:39,811 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 02:52:39,814 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)
[2023-12-24 02:52:39,836 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
[2023-12-24 02:52:39,898 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 02:52:39,903 INFO  L262         TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-24 02:52:39,906 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 02:52:40,012 INFO  L134       CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked.
[2023-12-24 02:52:40,012 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 02:52:40,012 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 02:52:40,013 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2138099648]
[2023-12-24 02:52:40,013 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2138099648] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 02:52:40,013 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 02:52:40,013 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-24 02:52:40,013 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496295549]
[2023-12-24 02:52:40,013 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 02:52:40,013 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-24 02:52:40,013 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 02:52:40,014 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-24 02:52:40,014 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-24 02:52:40,014 INFO  L87              Difference]: Start difference. First operand 93 states and 137 transitions. Second operand  has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13)
[2023-12-24 02:52:40,142 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 02:52:40,142 INFO  L93              Difference]: Finished difference Result 205 states and 300 transitions.
[2023-12-24 02:52:40,142 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-24 02:52:40,143 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 86
[2023-12-24 02:52:40,143 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 02:52:40,144 INFO  L225             Difference]: With dead ends: 205
[2023-12-24 02:52:40,144 INFO  L226             Difference]: Without dead ends: 113
[2023-12-24 02:52:40,145 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-24 02:52:40,145 INFO  L413           NwaCegarLoop]: 81 mSDtfsCounter, 63 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-24 02:52:40,146 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 200 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-24 02:52:40,146 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 113 states.
[2023-12-24 02:52:40,156 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 95.
[2023-12-24 02:52:40,156 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 95 states, 64 states have (on average 1.328125) internal successors, (85), 64 states have internal predecessors, (85), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26)
[2023-12-24 02:52:40,157 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 137 transitions.
[2023-12-24 02:52:40,157 INFO  L78                 Accepts]: Start accepts. Automaton has 95 states and 137 transitions. Word has length 86
[2023-12-24 02:52:40,157 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 02:52:40,158 INFO  L495      AbstractCegarLoop]: Abstraction has 95 states and 137 transitions.
[2023-12-24 02:52:40,158 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13)
[2023-12-24 02:52:40,158 INFO  L276                IsEmpty]: Start isEmpty. Operand 95 states and 137 transitions.
[2023-12-24 02:52:40,158 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 88
[2023-12-24 02:52:40,158 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 02:52:40,159 INFO  L195           NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 02:52:40,166 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
[2023-12-24 02:52:40,364 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
[2023-12-24 02:52:40,364 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 02:52:40,365 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 02:52:40,365 INFO  L85        PathProgramCache]: Analyzing trace with hash 1588973298, now seen corresponding path program 1 times
[2023-12-24 02:52:40,365 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 02:52:40,365 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [994421406]
[2023-12-24 02:52:40,366 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 02:52:40,366 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
[2023-12-24 02:52:40,366 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 02:52:40,367 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)
[2023-12-24 02:52:40,368 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
[2023-12-24 02:52:40,447 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 02:52:40,453 INFO  L262         TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-24 02:52:40,455 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 02:52:40,753 INFO  L134       CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked.
[2023-12-24 02:52:40,753 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 02:52:40,753 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 02:52:40,754 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [994421406]
[2023-12-24 02:52:40,754 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [994421406] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 02:52:40,754 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 02:52:40,754 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-24 02:52:40,754 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232905562]
[2023-12-24 02:52:40,754 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 02:52:40,755 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-24 02:52:40,755 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 02:52:40,755 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-24 02:52:40,756 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2023-12-24 02:52:40,756 INFO  L87              Difference]: Start difference. First operand 95 states and 137 transitions. Second operand  has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13)
[2023-12-24 02:52:41,007 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 02:52:41,008 INFO  L93              Difference]: Finished difference Result 321 states and 462 transitions.
[2023-12-24 02:52:41,008 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-24 02:52:41,008 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 87
[2023-12-24 02:52:41,008 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 02:52:41,010 INFO  L225             Difference]: With dead ends: 321
[2023-12-24 02:52:41,010 INFO  L226             Difference]: Without dead ends: 227
[2023-12-24 02:52:41,010 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2023-12-24 02:52:41,011 INFO  L413           NwaCegarLoop]: 100 mSDtfsCounter, 61 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-24 02:52:41,011 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 306 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-24 02:52:41,012 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 227 states.
[2023-12-24 02:52:41,030 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 183.
[2023-12-24 02:52:41,031 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 183 states, 122 states have (on average 1.2950819672131149) internal successors, (158), 122 states have internal predecessors, (158), 52 states have call successors, (52), 8 states have call predecessors, (52), 8 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52)
[2023-12-24 02:52:41,032 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 262 transitions.
[2023-12-24 02:52:41,032 INFO  L78                 Accepts]: Start accepts. Automaton has 183 states and 262 transitions. Word has length 87
[2023-12-24 02:52:41,033 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 02:52:41,033 INFO  L495      AbstractCegarLoop]: Abstraction has 183 states and 262 transitions.
[2023-12-24 02:52:41,033 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13)
[2023-12-24 02:52:41,033 INFO  L276                IsEmpty]: Start isEmpty. Operand 183 states and 262 transitions.
[2023-12-24 02:52:41,034 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 89
[2023-12-24 02:52:41,034 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 02:52:41,034 INFO  L195           NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 02:52:41,041 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 (5)] Ended with exit code 0
[2023-12-24 02:52:41,244 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 02:52:41,245 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 02:52:41,245 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 02:52:41,245 INFO  L85        PathProgramCache]: Analyzing trace with hash -996587340, now seen corresponding path program 1 times
[2023-12-24 02:52:41,245 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 02:52:41,246 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1727825870]
[2023-12-24 02:52:41,246 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 02:52:41,246 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
[2023-12-24 02:52:41,246 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 02:52:41,247 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 02:52:41,248 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2023-12-24 02:52:41,336 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 02:52:41,342 INFO  L262         TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 30 conjunts are in the unsatisfiable core
[2023-12-24 02:52:41,346 INFO  L285         TraceCheckSpWp]: Computing forward predicates...