/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-100_file-9.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 00:49:16,497 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 00:49:16,535 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 00:49:16,538 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 00:49:16,538 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 00:49:16,551 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 00:49:16,552 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 00:49:16,552 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 00:49:16,552 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 00:49:16,552 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 00:49:16,553 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 00:49:16,553 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 00:49:16,553 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 00:49:16,553 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 00:49:16,554 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 00:49:16,554 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 00:49:16,554 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 00:49:16,554 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 00:49:16,555 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 00:49:16,555 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 00:49:16,555 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 00:49:16,555 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 00:49:16,556 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 00:49:16,556 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 00:49:16,556 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 00:49:16,556 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 00:49:16,556 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 00:49:16,556 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 00:49:16,557 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 00:49:16,557 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 00:49:16,557 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 00:49:16,557 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 00:49:16,557 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 00:49:16,557 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 00:49:16,558 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 00:49:16,558 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 00:49:16,558 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 00:49:16,558 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 00:49:16,558 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 00:49:16,558 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 00:49:16,558 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 00:49:16,559 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 00:49:16,559 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 00:49:16,559 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 00:49:16,559 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 00:49:16,559 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 00:49:16,559 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 00:49:16,690 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 00:49:16,711 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 00:49:16,713 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 00:49:16,713 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 00:49:16,714 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 00:49:16,715 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-9.i
[2023-12-23 00:49:17,752 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 00:49:17,926 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 00:49:17,926 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-9.i
[2023-12-23 00:49:17,942 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16827f5cc/942d83ab69bc4e4e9503841e3a8db84b/FLAG73e327b23
[2023-12-23 00:49:17,952 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16827f5cc/942d83ab69bc4e4e9503841e3a8db84b
[2023-12-23 00:49:17,954 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 00:49:17,955 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 00:49:17,956 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 00:49:17,956 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 00:49:17,959 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 00:49:17,959 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 12:49:17" (1/1) ...
[2023-12-23 00:49:17,960 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60be183e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:49:17, skipping insertion in model container
[2023-12-23 00:49:17,960 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 12:49:17" (1/1) ...
[2023-12-23 00:49:17,989 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 00:49:18,092 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-100_file-9.i[915,928]
[2023-12-23 00:49:18,148 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 00:49:18,165 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 00:49:18,175 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-100_file-9.i[915,928]
[2023-12-23 00:49:18,225 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 00:49:18,247 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 00:49:18,250 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:49:18 WrapperNode
[2023-12-23 00:49:18,250 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 00:49:18,251 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 00:49:18,251 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 00:49:18,251 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 00:49:18,255 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:49:18" (1/1) ...
[2023-12-23 00:49:18,271 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:49:18" (1/1) ...
[2023-12-23 00:49:18,313 INFO  L138                Inliner]: procedures = 27, calls = 53, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 251
[2023-12-23 00:49:18,314 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 00:49:18,314 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 00:49:18,315 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 00:49:18,315 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 00:49:18,322 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:49:18" (1/1) ...
[2023-12-23 00:49:18,322 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:49:18" (1/1) ...
[2023-12-23 00:49:18,331 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:49:18" (1/1) ...
[2023-12-23 00:49:18,344 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 00:49:18,344 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:49:18" (1/1) ...
[2023-12-23 00:49:18,345 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:49:18" (1/1) ...
[2023-12-23 00:49:18,353 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:49:18" (1/1) ...
[2023-12-23 00:49:18,356 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:49:18" (1/1) ...
[2023-12-23 00:49:18,358 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:49:18" (1/1) ...
[2023-12-23 00:49:18,359 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:49:18" (1/1) ...
[2023-12-23 00:49:18,362 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 00:49:18,363 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 00:49:18,363 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 00:49:18,363 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 00:49:18,364 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:49:18" (1/1) ...
[2023-12-23 00:49:18,368 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 00:49:18,391 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 00:49:18,426 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 00:49:18,457 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 00:49:18,467 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 00:49:18,468 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 00:49:18,468 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 00:49:18,468 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 00:49:18,468 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 00:49:18,468 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 00:49:18,532 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 00:49:18,534 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 00:49:19,268 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 00:49:19,319 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 00:49:19,320 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 00:49:19,320 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 12:49:19 BoogieIcfgContainer
[2023-12-23 00:49:19,320 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 00:49:19,321 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 00:49:19,322 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 00:49:19,324 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 00:49:19,324 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 12:49:17" (1/3) ...
[2023-12-23 00:49:19,324 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52eb92a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 12:49:19, skipping insertion in model container
[2023-12-23 00:49:19,324 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:49:18" (2/3) ...
[2023-12-23 00:49:19,325 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52eb92a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 12:49:19, skipping insertion in model container
[2023-12-23 00:49:19,325 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 12:49:19" (3/3) ...
[2023-12-23 00:49:19,325 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-100_file-9.i
[2023-12-23 00:49:19,340 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 00:49:19,340 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 00:49:19,383 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 00:49:19,388 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;@343f6836, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 00:49:19,388 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 00:49:19,392 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 107 states, 64 states have (on average 1.546875) internal successors, (99), 65 states have internal predecessors, (99), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40)
[2023-12-23 00:49:19,415 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 249
[2023-12-23 00:49:19,415 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 00:49:19,416 INFO  L195           NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:49:19,416 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 00:49:19,420 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 00:49:19,420 INFO  L85        PathProgramCache]: Analyzing trace with hash 1680896476, now seen corresponding path program 1 times
[2023-12-23 00:49:19,443 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 00:49:19,444 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2099387688]
[2023-12-23 00:49:19,444 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 00:49:19,445 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 00:49:19,445 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 00:49:19,447 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 00:49:19,468 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 00:49:19,824 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 00:49:19,847 INFO  L262         TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 00:49:19,856 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 00:49:19,944 INFO  L134       CoverageAnalysis]: Checked inductivity of 3120 backedges. 1310 proven. 0 refuted. 0 times theorem prover too weak. 1810 trivial. 0 not checked.
[2023-12-23 00:49:19,945 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 00:49:19,945 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 00:49:19,947 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2099387688]
[2023-12-23 00:49:19,948 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2099387688] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 00:49:19,948 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 00:49:19,948 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 00:49:19,949 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025508993]
[2023-12-23 00:49:19,950 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 00:49:19,953 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 00:49:19,953 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 00:49:19,982 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 00:49:19,983 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 00:49:19,985 INFO  L87              Difference]: Start difference. First operand  has 107 states, 64 states have (on average 1.546875) internal successors, (99), 65 states have internal predecessors, (99), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Second operand  has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40)
[2023-12-23 00:49:20,094 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 00:49:20,094 INFO  L93              Difference]: Finished difference Result 211 states and 396 transitions.
[2023-12-23 00:49:20,103 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 00:49:20,104 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 248
[2023-12-23 00:49:20,105 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 00:49:20,110 INFO  L225             Difference]: With dead ends: 211
[2023-12-23 00:49:20,111 INFO  L226             Difference]: Without dead ends: 105
[2023-12-23 00:49:20,119 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 247 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 00:49:20,122 INFO  L413           NwaCegarLoop]: 170 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-23 00:49:20,123 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 170 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-23 00:49:20,134 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 105 states.
[2023-12-23 00:49:20,158 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105.
[2023-12-23 00:49:20,159 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 105 states, 63 states have (on average 1.4761904761904763) internal successors, (93), 63 states have internal predecessors, (93), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40)
[2023-12-23 00:49:20,160 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 173 transitions.
[2023-12-23 00:49:20,161 INFO  L78                 Accepts]: Start accepts. Automaton has 105 states and 173 transitions. Word has length 248
[2023-12-23 00:49:20,161 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 00:49:20,161 INFO  L495      AbstractCegarLoop]: Abstraction has 105 states and 173 transitions.
[2023-12-23 00:49:20,162 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40)
[2023-12-23 00:49:20,162 INFO  L276                IsEmpty]: Start isEmpty. Operand 105 states and 173 transitions.
[2023-12-23 00:49:20,165 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 250
[2023-12-23 00:49:20,165 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 00:49:20,166 INFO  L195           NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:49:20,181 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 00:49:20,378 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 00:49:20,378 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 00:49:20,379 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 00:49:20,379 INFO  L85        PathProgramCache]: Analyzing trace with hash 748708191, now seen corresponding path program 1 times
[2023-12-23 00:49:20,380 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 00:49:20,380 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2034912244]
[2023-12-23 00:49:20,380 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 00:49:20,380 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 00:49:20,380 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 00:49:20,392 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 00:49:20,440 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 00:49:20,717 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 00:49:20,736 INFO  L262         TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 16 conjunts are in the unsatisfiable core
[2023-12-23 00:49:20,744 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 00:49:22,999 INFO  L134       CoverageAnalysis]: Checked inductivity of 3120 backedges. 843 proven. 372 refuted. 0 times theorem prover too weak. 1905 trivial. 0 not checked.
[2023-12-23 00:49:22,999 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 00:49:23,379 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 00:49:23,379 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2034912244]
[2023-12-23 00:49:23,380 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2034912244] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 00:49:23,380 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [403987884]
[2023-12-23 00:49:23,380 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 00:49:23,380 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-23 00:49:23,380 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-23 00:49:23,426 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2023-12-23 00:49:23,427 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process
[2023-12-23 00:49:24,491 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 00:49:24,535 INFO  L262         TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 14 conjunts are in the unsatisfiable core
[2023-12-23 00:49:24,540 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 00:49:25,889 INFO  L134       CoverageAnalysis]: Checked inductivity of 3120 backedges. 803 proven. 288 refuted. 0 times theorem prover too weak. 2029 trivial. 0 not checked.
[2023-12-23 00:49:25,889 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 00:49:26,124 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [403987884] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 00:49:26,145 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 00:49:26,145 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13] total 17
[2023-12-23 00:49:26,146 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417552084]
[2023-12-23 00:49:26,146 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 00:49:26,147 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2023-12-23 00:49:26,147 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 00:49:26,149 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2023-12-23 00:49:26,149 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552
[2023-12-23 00:49:26,149 INFO  L87              Difference]: Start difference. First operand 105 states and 173 transitions. Second operand  has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 16 states have internal predecessors, (105), 5 states have call successors, (71), 5 states have call predecessors, (71), 7 states have return successors, (72), 5 states have call predecessors, (72), 5 states have call successors, (72)
[2023-12-23 00:49:27,657 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 00:49:27,657 INFO  L93              Difference]: Finished difference Result 349 states and 557 transitions.
[2023-12-23 00:49:27,657 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. 
[2023-12-23 00:49:27,658 INFO  L78                 Accepts]: Start accepts. Automaton has  has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 16 states have internal predecessors, (105), 5 states have call successors, (71), 5 states have call predecessors, (71), 7 states have return successors, (72), 5 states have call predecessors, (72), 5 states have call successors, (72) Word has length 249
[2023-12-23 00:49:27,659 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 00:49:27,661 INFO  L225             Difference]: With dead ends: 349
[2023-12-23 00:49:27,661 INFO  L226             Difference]: Without dead ends: 245
[2023-12-23 00:49:27,663 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 924 GetRequests, 883 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=443, Invalid=1279, Unknown=0, NotChecked=0, Total=1722
[2023-12-23 00:49:27,664 INFO  L413           NwaCegarLoop]: 135 mSDtfsCounter, 299 mSDsluCounter, 945 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2023-12-23 00:49:27,664 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 1080 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2023-12-23 00:49:27,665 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 245 states.
[2023-12-23 00:49:27,689 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 225.
[2023-12-23 00:49:27,690 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 225 states, 138 states have (on average 1.4275362318840579) internal successors, (197), 138 states have internal predecessors, (197), 80 states have call successors, (80), 6 states have call predecessors, (80), 6 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80)
[2023-12-23 00:49:27,692 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 357 transitions.
[2023-12-23 00:49:27,692 INFO  L78                 Accepts]: Start accepts. Automaton has 225 states and 357 transitions. Word has length 249
[2023-12-23 00:49:27,693 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 00:49:27,693 INFO  L495      AbstractCegarLoop]: Abstraction has 225 states and 357 transitions.
[2023-12-23 00:49:27,693 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 16 states have internal predecessors, (105), 5 states have call successors, (71), 5 states have call predecessors, (71), 7 states have return successors, (72), 5 states have call predecessors, (72), 5 states have call successors, (72)
[2023-12-23 00:49:27,693 INFO  L276                IsEmpty]: Start isEmpty. Operand 225 states and 357 transitions.
[2023-12-23 00:49:27,696 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 250
[2023-12-23 00:49:27,696 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 00:49:27,696 INFO  L195           NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:49:27,716 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0
[2023-12-23 00:49:27,930 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2023-12-23 00:49:28,127 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 00:49:28,128 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 00:49:28,128 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 00:49:28,129 INFO  L85        PathProgramCache]: Analyzing trace with hash 1141735201, now seen corresponding path program 1 times
[2023-12-23 00:49:28,129 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 00:49:28,129 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2094998799]
[2023-12-23 00:49:28,129 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 00:49:28,130 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 00:49:28,130 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 00:49:28,131 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 00:49:28,134 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 00:49:28,413 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 00:49:28,438 INFO  L262         TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 29 conjunts are in the unsatisfiable core
[2023-12-23 00:49:28,444 INFO  L285         TraceCheckSpWp]: Computing forward predicates...