/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-28.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 02:11:46,386 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 02:11:46,456 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-12-23 02:11:46,460 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 02:11:46,461 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 02:11:46,482 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 02:11:46,483 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 02:11:46,483 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 02:11:46,483 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 02:11:46,484 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 02:11:46,484 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 02:11:46,484 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 02:11:46,485 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 02:11:46,485 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 02:11:46,485 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 02:11:46,486 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 02:11:46,486 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 02:11:46,486 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 02:11:46,486 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 02:11:46,486 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 02:11:46,487 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 02:11:46,487 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 02:11:46,487 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 02:11:46,488 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 02:11:46,488 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 02:11:46,488 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 02:11:46,488 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 02:11:46,489 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 02:11:46,489 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 02:11:46,489 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 02:11:46,489 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 02:11:46,490 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 02:11:46,490 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 02:11:46,491 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 02:11:46,491 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 02:11:46,491 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 02:11:46,491 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 02:11:46,491 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 02:11:46,492 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 02:11:46,492 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 02:11:46,492 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 02:11:46,492 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 02:11:46,492 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 02:11:46,493 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 02:11:46,493 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 02:11:46,493 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 02:11:46,493 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 02:11:46,709 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 02:11:46,736 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 02:11:46,738 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 02:11:46,739 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 02:11:46,739 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 02:11:46,741 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-28.i
[2023-12-23 02:11:47,873 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 02:11:48,097 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 02:11:48,097 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-28.i
[2023-12-23 02:11:48,120 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5eb669457/afa2b37e45df497987e4c8e26487d7c4/FLAGffee9d951
[2023-12-23 02:11:48,133 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5eb669457/afa2b37e45df497987e4c8e26487d7c4
[2023-12-23 02:11:48,136 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 02:11:48,137 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 02:11:48,138 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 02:11:48,138 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 02:11:48,141 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 02:11:48,142 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 02:11:48" (1/1) ...
[2023-12-23 02:11:48,142 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68aab7f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:11:48, skipping insertion in model container
[2023-12-23 02:11:48,142 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 02:11:48" (1/1) ...
[2023-12-23 02:11:48,186 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 02:11:48,311 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-28.i[916,929]
[2023-12-23 02:11:48,444 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 02:11:48,461 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 02:11:48,475 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-28.i[916,929]
[2023-12-23 02:11:48,534 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 02:11:48,558 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 02:11:48,559 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:11:48 WrapperNode
[2023-12-23 02:11:48,559 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 02:11:48,561 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 02:11:48,563 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 02:11:48,563 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 02:11:48,568 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:11:48" (1/1) ...
[2023-12-23 02:11:48,598 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:11:48" (1/1) ...
[2023-12-23 02:11:48,654 INFO  L138                Inliner]: procedures = 27, calls = 114, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 529
[2023-12-23 02:11:48,654 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 02:11:48,655 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 02:11:48,655 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 02:11:48,655 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 02:11:48,690 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:11:48" (1/1) ...
[2023-12-23 02:11:48,691 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:11:48" (1/1) ...
[2023-12-23 02:11:48,695 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:11:48" (1/1) ...
[2023-12-23 02:11:48,709 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2023-12-23 02:11:48,709 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:11:48" (1/1) ...
[2023-12-23 02:11:48,710 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:11:48" (1/1) ...
[2023-12-23 02:11:48,725 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:11:48" (1/1) ...
[2023-12-23 02:11:48,729 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:11:48" (1/1) ...
[2023-12-23 02:11:48,733 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:11:48" (1/1) ...
[2023-12-23 02:11:48,736 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:11:48" (1/1) ...
[2023-12-23 02:11:48,742 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 02:11:48,743 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 02:11:48,743 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 02:11:48,744 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 02:11:48,744 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:11:48" (1/1) ...
[2023-12-23 02:11:48,760 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 02:11:48,771 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 02:11:48,805 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2023-12-23 02:11:48,844 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2023-12-23 02:11:48,862 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 02:11:48,862 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 02:11:48,862 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 02:11:48,863 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 02:11:48,863 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 02:11:48,864 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 02:11:48,960 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 02:11:48,962 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 02:12:05,073 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 02:12:05,140 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 02:12:05,140 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 02:12:05,140 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 02:12:05 BoogieIcfgContainer
[2023-12-23 02:12:05,140 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 02:12:05,142 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 02:12:05,142 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 02:12:05,144 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 02:12:05,145 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 02:11:48" (1/3) ...
[2023-12-23 02:12:05,145 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37baeb12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 02:12:05, skipping insertion in model container
[2023-12-23 02:12:05,145 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:11:48" (2/3) ...
[2023-12-23 02:12:05,145 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37baeb12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 02:12:05, skipping insertion in model container
[2023-12-23 02:12:05,145 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 02:12:05" (3/3) ...
[2023-12-23 02:12:05,146 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-28.i
[2023-12-23 02:12:05,175 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 02:12:05,176 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 02:12:05,229 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 02:12:05,235 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;@4ef2933a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 02:12:05,235 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 02:12:05,239 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 234 states, 130 states have (on average 1.4692307692307693) internal successors, (191), 131 states have internal predecessors, (191), 101 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101)
[2023-12-23 02:12:05,278 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 606
[2023-12-23 02:12:05,278 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 02:12:05,280 INFO  L195           NwaCegarLoop]: trace histogram [101, 101, 101, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 02:12:05,280 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 02:12:05,285 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 02:12:05,286 INFO  L85        PathProgramCache]: Analyzing trace with hash 377513433, now seen corresponding path program 1 times
[2023-12-23 02:12:05,300 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 02:12:05,300 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1146447837]
[2023-12-23 02:12:05,300 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 02:12:05,301 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 02:12:05,301 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 02:12:05,303 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 02:12:05,338 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2023-12-23 02:12:06,894 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 02:12:06,963 INFO  L262         TraceCheckSpWp]: Trace formula consists of 946 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 02:12:06,978 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 02:12:07,046 INFO  L134       CoverageAnalysis]: Checked inductivity of 20200 backedges. 4724 proven. 0 refuted. 0 times theorem prover too weak. 15476 trivial. 0 not checked.
[2023-12-23 02:12:07,046 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 02:12:07,047 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 02:12:07,047 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1146447837]
[2023-12-23 02:12:07,047 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1146447837] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 02:12:07,047 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 02:12:07,048 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 02:12:07,049 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123594354]
[2023-12-23 02:12:07,049 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 02:12:07,053 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 02:12:07,053 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 02:12:07,072 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 02:12:07,073 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 02:12:07,075 INFO  L87              Difference]: Start difference. First operand  has 234 states, 130 states have (on average 1.4692307692307693) internal successors, (191), 131 states have internal predecessors, (191), 101 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) Second operand  has 2 states, 2 states have (on average 53.5) internal successors, (107), 2 states have internal predecessors, (107), 2 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (101), 2 states have call predecessors, (101), 2 states have call successors, (101)
[2023-12-23 02:12:07,603 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 02:12:07,603 INFO  L93              Difference]: Finished difference Result 465 states and 885 transitions.
[2023-12-23 02:12:07,628 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 02:12:07,630 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 53.5) internal successors, (107), 2 states have internal predecessors, (107), 2 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (101), 2 states have call predecessors, (101), 2 states have call successors, (101) Word has length 605
[2023-12-23 02:12:07,630 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 02:12:07,637 INFO  L225             Difference]: With dead ends: 465
[2023-12-23 02:12:07,637 INFO  L226             Difference]: Without dead ends: 232
[2023-12-23 02:12:07,670 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 604 GetRequests, 604 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 02:12:07,672 INFO  L413           NwaCegarLoop]: 385 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2023-12-23 02:12:07,673 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 385 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2023-12-23 02:12:07,685 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 232 states.
[2023-12-23 02:12:07,730 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232.
[2023-12-23 02:12:07,732 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 232 states, 129 states have (on average 1.441860465116279) internal successors, (186), 129 states have internal predecessors, (186), 101 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101)
[2023-12-23 02:12:07,734 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 388 transitions.
[2023-12-23 02:12:07,735 INFO  L78                 Accepts]: Start accepts. Automaton has 232 states and 388 transitions. Word has length 605
[2023-12-23 02:12:07,735 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 02:12:07,735 INFO  L495      AbstractCegarLoop]: Abstraction has 232 states and 388 transitions.
[2023-12-23 02:12:07,736 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 53.5) internal successors, (107), 2 states have internal predecessors, (107), 2 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (101), 2 states have call predecessors, (101), 2 states have call successors, (101)
[2023-12-23 02:12:07,736 INFO  L276                IsEmpty]: Start isEmpty. Operand 232 states and 388 transitions.
[2023-12-23 02:12:07,745 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 606
[2023-12-23 02:12:07,745 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 02:12:07,745 INFO  L195           NwaCegarLoop]: trace histogram [101, 101, 101, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 02:12:07,790 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2023-12-23 02:12:07,959 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 02:12:07,960 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 02:12:07,960 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 02:12:07,960 INFO  L85        PathProgramCache]: Analyzing trace with hash -1770487077, now seen corresponding path program 1 times
[2023-12-23 02:12:07,961 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 02:12:07,961 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [415711821]
[2023-12-23 02:12:07,962 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 02:12:07,962 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 02:12:07,962 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 02:12:07,963 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 02:12:07,977 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2023-12-23 02:12:09,499 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 02:12:09,571 INFO  L262         TraceCheckSpWp]: Trace formula consists of 946 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-12-23 02:12:09,582 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 02:12:14,748 INFO  L134       CoverageAnalysis]: Checked inductivity of 20200 backedges. 6509 proven. 105 refuted. 0 times theorem prover too weak. 13586 trivial. 0 not checked.
[2023-12-23 02:12:14,748 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 02:12:17,945 INFO  L134       CoverageAnalysis]: Checked inductivity of 20200 backedges. 489 proven. 108 refuted. 0 times theorem prover too weak. 19603 trivial. 0 not checked.
[2023-12-23 02:12:17,946 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 02:12:17,946 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [415711821]
[2023-12-23 02:12:17,946 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [415711821] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 02:12:17,946 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 02:12:17,946 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13
[2023-12-23 02:12:17,946 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352475203]
[2023-12-23 02:12:17,946 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 02:12:17,948 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2023-12-23 02:12:17,949 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 02:12:17,949 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2023-12-23 02:12:17,950 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156
[2023-12-23 02:12:17,950 INFO  L87              Difference]: Start difference. First operand 232 states and 388 transitions. Second operand  has 13 states, 13 states have (on average 9.307692307692308) internal successors, (121), 13 states have internal predecessors, (121), 3 states have call successors, (120), 3 states have call predecessors, (120), 7 states have return successors, (121), 3 states have call predecessors, (121), 3 states have call successors, (121)
[2023-12-23 02:12:32,962 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 02:12:32,962 INFO  L93              Difference]: Finished difference Result 722 states and 1186 transitions.
[2023-12-23 02:12:32,964 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. 
[2023-12-23 02:12:32,964 INFO  L78                 Accepts]: Start accepts. Automaton has  has 13 states, 13 states have (on average 9.307692307692308) internal successors, (121), 13 states have internal predecessors, (121), 3 states have call successors, (120), 3 states have call predecessors, (120), 7 states have return successors, (121), 3 states have call predecessors, (121), 3 states have call successors, (121) Word has length 605
[2023-12-23 02:12:32,966 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 02:12:32,969 INFO  L225             Difference]: With dead ends: 722
[2023-12-23 02:12:32,970 INFO  L226             Difference]: Without dead ends: 491
[2023-12-23 02:12:32,971 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1230 GetRequests, 1198 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=315, Invalid=741, Unknown=0, NotChecked=0, Total=1056
[2023-12-23 02:12:32,972 INFO  L413           NwaCegarLoop]: 468 mSDtfsCounter, 1038 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 1155 mSolverCounterSat, 557 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1120 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 1712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 557 IncrementalHoareTripleChecker+Valid, 1155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time
[2023-12-23 02:12:32,973 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1120 Valid, 1273 Invalid, 1712 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [557 Valid, 1155 Invalid, 0 Unknown, 0 Unchecked, 12.6s Time]
[2023-12-23 02:12:32,973 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 491 states.
[2023-12-23 02:12:33,050 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 477.
[2023-12-23 02:12:33,051 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 477 states, 268 states have (on average 1.421641791044776) internal successors, (381), 268 states have internal predecessors, (381), 202 states have call successors, (202), 6 states have call predecessors, (202), 6 states have return successors, (202), 202 states have call predecessors, (202), 202 states have call successors, (202)
[2023-12-23 02:12:33,053 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 785 transitions.
[2023-12-23 02:12:33,054 INFO  L78                 Accepts]: Start accepts. Automaton has 477 states and 785 transitions. Word has length 605
[2023-12-23 02:12:33,055 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 02:12:33,055 INFO  L495      AbstractCegarLoop]: Abstraction has 477 states and 785 transitions.
[2023-12-23 02:12:33,055 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 13 states, 13 states have (on average 9.307692307692308) internal successors, (121), 13 states have internal predecessors, (121), 3 states have call successors, (120), 3 states have call predecessors, (120), 7 states have return successors, (121), 3 states have call predecessors, (121), 3 states have call successors, (121)
[2023-12-23 02:12:33,055 INFO  L276                IsEmpty]: Start isEmpty. Operand 477 states and 785 transitions.
[2023-12-23 02:12:33,059 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 606
[2023-12-23 02:12:33,059 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 02:12:33,059 INFO  L195           NwaCegarLoop]: trace histogram [101, 101, 101, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 02:12:33,093 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
[2023-12-23 02:12:33,272 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 02:12:33,273 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 02:12:33,273 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 02:12:33,273 INFO  L85        PathProgramCache]: Analyzing trace with hash -384283683, now seen corresponding path program 1 times
[2023-12-23 02:12:33,274 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 02:12:33,274 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [200684552]
[2023-12-23 02:12:33,274 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 02:12:33,275 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 02:12:33,275 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 02:12:33,276 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 02:12:33,315 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2023-12-23 02:12:34,618 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 02:12:34,687 INFO  L262         TraceCheckSpWp]: Trace formula consists of 946 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-23 02:12:34,695 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 02:12:37,513 INFO  L134       CoverageAnalysis]: Checked inductivity of 20200 backedges. 7548 proven. 72 refuted. 0 times theorem prover too weak. 12580 trivial. 0 not checked.
[2023-12-23 02:12:37,514 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 02:12:39,333 INFO  L134       CoverageAnalysis]: Checked inductivity of 20200 backedges. 228 proven. 72 refuted. 0 times theorem prover too weak. 19900 trivial. 0 not checked.
[2023-12-23 02:12:39,334 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 02:12:39,338 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [200684552]
[2023-12-23 02:12:39,340 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [200684552] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 02:12:39,343 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 02:12:39,343 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2023-12-23 02:12:39,343 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051261496]
[2023-12-23 02:12:39,343 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 02:12:39,344 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-23 02:12:39,344 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 02:12:39,345 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-23 02:12:39,345 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-23 02:12:39,345 INFO  L87              Difference]: Start difference. First operand 477 states and 785 transitions. Second operand  has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 2 states have call successors, (125), 2 states have call predecessors, (125), 4 states have return successors, (126), 2 states have call predecessors, (126), 2 states have call successors, (126)
[2023-12-23 02:12:50,070 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 02:12:50,070 INFO  L93              Difference]: Finished difference Result 1094 states and 1784 transitions.
[2023-12-23 02:12:50,074 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-12-23 02:12:50,074 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 2 states have call successors, (125), 2 states have call predecessors, (125), 4 states have return successors, (126), 2 states have call predecessors, (126), 2 states have call successors, (126) Word has length 605
[2023-12-23 02:12:50,075 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 02:12:50,078 INFO  L225             Difference]: With dead ends: 1094
[2023-12-23 02:12:50,078 INFO  L226             Difference]: Without dead ends: 618
[2023-12-23 02:12:50,080 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1212 GetRequests, 1202 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110
[2023-12-23 02:12:50,081 INFO  L413           NwaCegarLoop]: 395 mSDtfsCounter, 377 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 1013 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 1191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 1013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time
[2023-12-23 02:12:50,081 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 886 Invalid, 1191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 1013 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time]
[2023-12-23 02:12:50,082 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 618 states.
[2023-12-23 02:12:50,167 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 603.
[2023-12-23 02:12:50,169 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 603 states, 316 states have (on average 1.3449367088607596) internal successors, (425), 317 states have internal predecessors, (425), 278 states have call successors, (278), 8 states have call predecessors, (278), 8 states have return successors, (278), 277 states have call predecessors, (278), 278 states have call successors, (278)
[2023-12-23 02:12:50,171 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 981 transitions.
[2023-12-23 02:12:50,172 INFO  L78                 Accepts]: Start accepts. Automaton has 603 states and 981 transitions. Word has length 605
[2023-12-23 02:12:50,178 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 02:12:50,178 INFO  L495      AbstractCegarLoop]: Abstraction has 603 states and 981 transitions.
[2023-12-23 02:12:50,178 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 2 states have call successors, (125), 2 states have call predecessors, (125), 4 states have return successors, (126), 2 states have call predecessors, (126), 2 states have call successors, (126)
[2023-12-23 02:12:50,178 INFO  L276                IsEmpty]: Start isEmpty. Operand 603 states and 981 transitions.
[2023-12-23 02:12:50,183 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 607
[2023-12-23 02:12:50,183 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 02:12:50,183 INFO  L195           NwaCegarLoop]: trace histogram [101, 101, 101, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 02:12:50,217 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
[2023-12-23 02:12:50,408 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 02:12:50,409 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 02:12:50,409 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 02:12:50,409 INFO  L85        PathProgramCache]: Analyzing trace with hash -1028867664, now seen corresponding path program 1 times
[2023-12-23 02:12:50,410 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 02:12:50,410 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [997634900]
[2023-12-23 02:12:50,410 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 02:12:50,411 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 02:12:50,411 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 02:12:50,414 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 02:12:50,420 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2023-12-23 02:12:52,309 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 02:12:52,373 INFO  L262         TraceCheckSpWp]: Trace formula consists of 948 conjuncts, 28 conjunts are in the unsatisfiable core
[2023-12-23 02:12:52,388 INFO  L285         TraceCheckSpWp]: Computing forward predicates...