/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-56.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-24 03:09:59,583 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-24 03:09:59,661 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 03:09:59,665 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-24 03:09:59,665 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-24 03:09:59,690 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-24 03:09:59,691 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-24 03:09:59,691 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-24 03:09:59,691 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-24 03:09:59,696 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-24 03:09:59,696 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-24 03:09:59,696 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-24 03:09:59,697 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-24 03:09:59,698 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-24 03:09:59,698 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-24 03:09:59,698 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-24 03:09:59,698 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-24 03:09:59,699 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-24 03:09:59,699 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-24 03:09:59,699 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-24 03:09:59,699 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-24 03:09:59,700 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-24 03:09:59,700 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-24 03:09:59,701 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-24 03:09:59,701 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-24 03:09:59,701 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-24 03:09:59,701 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-24 03:09:59,701 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-24 03:09:59,701 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-24 03:09:59,702 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-24 03:09:59,702 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-24 03:09:59,702 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-24 03:09:59,703 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-24 03:09:59,703 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-24 03:09:59,703 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-24 03:09:59,703 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-24 03:09:59,703 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-24 03:09:59,703 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-24 03:09:59,703 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-24 03:09:59,703 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-24 03:09:59,704 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-24 03:09:59,704 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-24 03:09:59,704 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-24 03:09:59,704 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-24 03:09:59,704 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-24 03:09:59,704 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-24 03:09:59,705 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-24 03:09:59,918 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-24 03:09:59,936 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-24 03:09:59,938 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-24 03:09:59,939 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-24 03:09:59,939 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-24 03:09:59,941 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-56.i
[2023-12-24 03:10:01,010 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-24 03:10:01,135 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-24 03:10:01,136 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-56.i
[2023-12-24 03:10:01,149 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cd33a792/887211b744884c08a7d92f034130129c/FLAGc1dae3083
[2023-12-24 03:10:01,566 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cd33a792/887211b744884c08a7d92f034130129c
[2023-12-24 03:10:01,568 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-24 03:10:01,569 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-24 03:10:01,570 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-24 03:10:01,570 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-24 03:10:01,574 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-24 03:10:01,575 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 03:10:01" (1/1) ...
[2023-12-24 03:10:01,575 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b561892 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:10:01, skipping insertion in model container
[2023-12-24 03:10:01,576 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 03:10:01" (1/1) ...
[2023-12-24 03:10:01,617 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-24 03:10:01,743 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-56.i[915,928]
[2023-12-24 03:10:01,789 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-24 03:10:01,801 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-24 03:10:01,815 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-56.i[915,928]
[2023-12-24 03:10:01,861 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-24 03:10:01,876 INFO  L206         MainTranslator]: Completed translation
[2023-12-24 03:10:01,877 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:10:01 WrapperNode
[2023-12-24 03:10:01,877 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-24 03:10:01,878 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-24 03:10:01,878 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-24 03:10:01,878 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-24 03:10:01,882 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:10:01" (1/1) ...
[2023-12-24 03:10:01,898 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:10:01" (1/1) ...
[2023-12-24 03:10:01,917 INFO  L138                Inliner]: procedures = 27, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 135
[2023-12-24 03:10:01,917 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-24 03:10:01,917 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-24 03:10:01,918 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-24 03:10:01,918 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-24 03:10:01,928 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:10:01" (1/1) ...
[2023-12-24 03:10:01,928 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:10:01" (1/1) ...
[2023-12-24 03:10:01,931 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:10:01" (1/1) ...
[2023-12-24 03:10:01,941 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 03:10:01,941 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:10:01" (1/1) ...
[2023-12-24 03:10:01,941 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:10:01" (1/1) ...
[2023-12-24 03:10:01,954 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:10:01" (1/1) ...
[2023-12-24 03:10:01,956 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:10:01" (1/1) ...
[2023-12-24 03:10:01,957 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:10:01" (1/1) ...
[2023-12-24 03:10:01,958 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:10:01" (1/1) ...
[2023-12-24 03:10:01,964 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-24 03:10:01,964 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-24 03:10:01,965 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-24 03:10:01,965 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-24 03:10:01,965 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:10:01" (1/1) ...
[2023-12-24 03:10:01,972 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-24 03:10:01,981 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-24 03:10:01,994 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 03:10:02,000 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 03:10:02,019 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-24 03:10:02,020 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-24 03:10:02,020 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-24 03:10:02,021 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-24 03:10:02,021 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-24 03:10:02,022 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-24 03:10:02,106 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-24 03:10:02,110 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-24 03:10:02,397 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-24 03:10:02,453 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-24 03:10:02,454 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-24 03:10:02,454 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 03:10:02 BoogieIcfgContainer
[2023-12-24 03:10:02,454 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-24 03:10:02,457 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-24 03:10:02,457 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-24 03:10:02,459 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-24 03:10:02,459 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 03:10:01" (1/3) ...
[2023-12-24 03:10:02,460 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61e817c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 03:10:02, skipping insertion in model container
[2023-12-24 03:10:02,460 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:10:01" (2/3) ...
[2023-12-24 03:10:02,460 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61e817c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 03:10:02, skipping insertion in model container
[2023-12-24 03:10:02,461 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 03:10:02" (3/3) ...
[2023-12-24 03:10:02,462 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-1loop_file-56.i
[2023-12-24 03:10:02,473 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-24 03:10:02,474 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-24 03:10:02,510 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-24 03:10:02,515 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;@43fd7784, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-24 03:10:02,515 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-24 03:10:02,518 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 56 states, 31 states have (on average 1.3870967741935485) internal successors, (43), 32 states have internal predecessors, (43), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22)
[2023-12-24 03:10:02,530 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 136
[2023-12-24 03:10:02,531 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 03:10:02,531 INFO  L195           NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:10:02,532 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 03:10:02,537 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 03:10:02,537 INFO  L85        PathProgramCache]: Analyzing trace with hash 1631987822, now seen corresponding path program 1 times
[2023-12-24 03:10:02,557 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 03:10:02,557 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [615179238]
[2023-12-24 03:10:02,558 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 03:10:02,558 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 03:10:02,558 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 03:10:02,560 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 03:10:02,570 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 03:10:02,675 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 03:10:02,680 INFO  L262         TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-24 03:10:02,689 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 03:10:02,722 INFO  L134       CoverageAnalysis]: Checked inductivity of 924 backedges. 474 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked.
[2023-12-24 03:10:02,723 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 03:10:02,723 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 03:10:02,723 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [615179238]
[2023-12-24 03:10:02,724 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [615179238] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 03:10:02,724 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 03:10:02,724 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-24 03:10:02,725 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759248924]
[2023-12-24 03:10:02,726 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 03:10:02,728 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-24 03:10:02,729 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 03:10:02,745 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-24 03:10:02,745 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-24 03:10:02,747 INFO  L87              Difference]: Start difference. First operand  has 56 states, 31 states have (on average 1.3870967741935485) internal successors, (43), 32 states have internal predecessors, (43), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) 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, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22)
[2023-12-24 03:10:02,796 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 03:10:02,796 INFO  L93              Difference]: Finished difference Result 111 states and 195 transitions.
[2023-12-24 03:10:02,797 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-24 03:10:02,806 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, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 135
[2023-12-24 03:10:02,806 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 03:10:02,811 INFO  L225             Difference]: With dead ends: 111
[2023-12-24 03:10:02,811 INFO  L226             Difference]: Without dead ends: 54
[2023-12-24 03:10:02,814 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 134 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 03:10:02,816 INFO  L413           NwaCegarLoop]: 79 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, 79 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-24 03:10:02,816 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-24 03:10:02,826 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 54 states.
[2023-12-24 03:10:02,840 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54.
[2023-12-24 03:10:02,841 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 54 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 30 states have internal predecessors, (38), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22)
[2023-12-24 03:10:02,842 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 82 transitions.
[2023-12-24 03:10:02,843 INFO  L78                 Accepts]: Start accepts. Automaton has 54 states and 82 transitions. Word has length 135
[2023-12-24 03:10:02,843 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 03:10:02,843 INFO  L495      AbstractCegarLoop]: Abstraction has 54 states and 82 transitions.
[2023-12-24 03:10:02,843 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, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22)
[2023-12-24 03:10:02,843 INFO  L276                IsEmpty]: Start isEmpty. Operand 54 states and 82 transitions.
[2023-12-24 03:10:02,845 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 136
[2023-12-24 03:10:02,845 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 03:10:02,845 INFO  L195           NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:10:02,852 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 03:10:03,049 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 03:10:03,050 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 03:10:03,051 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 03:10:03,051 INFO  L85        PathProgramCache]: Analyzing trace with hash 334325550, now seen corresponding path program 1 times
[2023-12-24 03:10:03,051 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 03:10:03,052 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1380901364]
[2023-12-24 03:10:03,052 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 03:10:03,052 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 03:10:03,052 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 03:10:03,055 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 03:10:03,065 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 03:10:03,146 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 03:10:03,150 INFO  L262         TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-12-24 03:10:03,154 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 03:10:03,583 INFO  L134       CoverageAnalysis]: Checked inductivity of 924 backedges. 382 proven. 93 refuted. 0 times theorem prover too weak. 449 trivial. 0 not checked.
[2023-12-24 03:10:03,584 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 03:10:03,839 INFO  L134       CoverageAnalysis]: Checked inductivity of 924 backedges. 27 proven. 96 refuted. 0 times theorem prover too weak. 801 trivial. 0 not checked.
[2023-12-24 03:10:03,839 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 03:10:03,839 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1380901364]
[2023-12-24 03:10:03,839 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1380901364] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-24 03:10:03,839 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-24 03:10:03,839 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13
[2023-12-24 03:10:03,840 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530807743]
[2023-12-24 03:10:03,840 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-24 03:10:03,841 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2023-12-24 03:10:03,841 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 03:10:03,842 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2023-12-24 03:10:03,842 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156
[2023-12-24 03:10:03,842 INFO  L87              Difference]: Start difference. First operand 54 states and 82 transitions. Second operand  has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 3 states have call successors, (39), 3 states have call predecessors, (39), 7 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40)
[2023-12-24 03:10:04,160 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 03:10:04,160 INFO  L93              Difference]: Finished difference Result 117 states and 171 transitions.
[2023-12-24 03:10:04,161 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2023-12-24 03:10:04,161 INFO  L78                 Accepts]: Start accepts. Automaton has  has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 3 states have call successors, (39), 3 states have call predecessors, (39), 7 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 135
[2023-12-24 03:10:04,162 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 03:10:04,162 INFO  L225             Difference]: With dead ends: 117
[2023-12-24 03:10:04,162 INFO  L226             Difference]: Without dead ends: 64
[2023-12-24 03:10:04,163 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 258 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=184, Invalid=368, Unknown=0, NotChecked=0, Total=552
[2023-12-24 03:10:04,164 INFO  L413           NwaCegarLoop]: 49 mSDtfsCounter, 76 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-24 03:10:04,165 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 104 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-24 03:10:04,165 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 64 states.
[2023-12-24 03:10:04,174 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 62.
[2023-12-24 03:10:04,174 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 62 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 36 states have internal predecessors, (42), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22)
[2023-12-24 03:10:04,175 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 86 transitions.
[2023-12-24 03:10:04,175 INFO  L78                 Accepts]: Start accepts. Automaton has 62 states and 86 transitions. Word has length 135
[2023-12-24 03:10:04,176 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 03:10:04,176 INFO  L495      AbstractCegarLoop]: Abstraction has 62 states and 86 transitions.
[2023-12-24 03:10:04,176 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 3 states have call successors, (39), 3 states have call predecessors, (39), 7 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40)
[2023-12-24 03:10:04,176 INFO  L276                IsEmpty]: Start isEmpty. Operand 62 states and 86 transitions.
[2023-12-24 03:10:04,177 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 136
[2023-12-24 03:10:04,177 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 03:10:04,178 INFO  L195           NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:10:04,187 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
[2023-12-24 03:10:04,381 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 03:10:04,384 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 03:10:04,385 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 03:10:04,385 INFO  L85        PathProgramCache]: Analyzing trace with hash -58701460, now seen corresponding path program 1 times
[2023-12-24 03:10:04,386 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 03:10:04,386 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1895062343]
[2023-12-24 03:10:04,386 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 03:10:04,386 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 03:10:04,386 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 03:10:04,387 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 03:10:04,389 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 03:10:04,482 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 03:10:04,487 INFO  L262         TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-24 03:10:04,490 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 03:10:04,649 INFO  L134       CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked.
[2023-12-24 03:10:04,649 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 03:10:04,650 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 03:10:04,650 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1895062343]
[2023-12-24 03:10:04,650 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1895062343] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 03:10:04,650 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 03:10:04,650 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-24 03:10:04,650 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175245540]
[2023-12-24 03:10:04,650 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 03:10:04,651 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-24 03:10:04,651 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 03:10:04,651 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-24 03:10:04,652 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-12-24 03:10:04,652 INFO  L87              Difference]: Start difference. First operand 62 states and 86 transitions. Second operand  has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22)
[2023-12-24 03:10:04,754 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 03:10:04,754 INFO  L93              Difference]: Finished difference Result 123 states and 171 transitions.
[2023-12-24 03:10:04,755 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-24 03:10:04,755 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 135
[2023-12-24 03:10:04,755 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 03:10:04,756 INFO  L225             Difference]: With dead ends: 123
[2023-12-24 03:10:04,756 INFO  L226             Difference]: Without dead ends: 62
[2023-12-24 03:10:04,757 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-12-24 03:10:04,757 INFO  L413           NwaCegarLoop]: 68 mSDtfsCounter, 12 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-24 03:10:04,758 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 89 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-24 03:10:04,758 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 62 states.
[2023-12-24 03:10:04,766 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62.
[2023-12-24 03:10:04,766 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 62 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 36 states have internal predecessors, (41), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22)
[2023-12-24 03:10:04,767 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 85 transitions.
[2023-12-24 03:10:04,767 INFO  L78                 Accepts]: Start accepts. Automaton has 62 states and 85 transitions. Word has length 135
[2023-12-24 03:10:04,768 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 03:10:04,768 INFO  L495      AbstractCegarLoop]: Abstraction has 62 states and 85 transitions.
[2023-12-24 03:10:04,768 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22)
[2023-12-24 03:10:04,768 INFO  L276                IsEmpty]: Start isEmpty. Operand 62 states and 85 transitions.
[2023-12-24 03:10:04,769 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 136
[2023-12-24 03:10:04,769 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 03:10:04,770 INFO  L195           NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:10:04,790 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 (4)] Ended with exit code 0
[2023-12-24 03:10:04,974 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 03:10:04,974 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 03:10:04,974 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 03:10:04,975 INFO  L85        PathProgramCache]: Analyzing trace with hash -60548502, now seen corresponding path program 1 times
[2023-12-24 03:10:04,975 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 03:10:04,975 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [9859676]
[2023-12-24 03:10:04,975 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 03:10:04,975 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 03:10:04,975 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 03:10:04,976 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 03:10:04,978 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 03:10:05,082 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 03:10:05,086 INFO  L262         TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 27 conjunts are in the unsatisfiable core
[2023-12-24 03:10:05,090 INFO  L285         TraceCheckSpWp]: Computing forward predicates...