/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_fillercodestructure_filler-pr-cn_file-96.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 12:39:19,268 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 12:39:19,350 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 12:39:19,354 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 12:39:19,355 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 12:39:19,382 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 12:39:19,383 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 12:39:19,383 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 12:39:19,384 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 12:39:19,387 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 12:39:19,387 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 12:39:19,388 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 12:39:19,388 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 12:39:19,389 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 12:39:19,389 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 12:39:19,390 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 12:39:19,390 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 12:39:19,390 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 12:39:19,391 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 12:39:19,391 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 12:39:19,391 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 12:39:19,391 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 12:39:19,391 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 12:39:19,392 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 12:39:19,392 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 12:39:19,392 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 12:39:19,392 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 12:39:19,392 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 12:39:19,393 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 12:39:19,393 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 12:39:19,394 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 12:39:19,394 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 12:39:19,394 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 12:39:19,394 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 12:39:19,394 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 12:39:19,394 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 12:39:19,395 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 12:39:19,395 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 12:39:19,395 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 12:39:19,395 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 12:39:19,395 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 12:39:19,395 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 12:39:19,396 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 12:39:19,396 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 12:39:19,396 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 12:39:19,396 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 12:39:19,396 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 12:39:19,620 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 12:39:19,641 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 12:39:19,643 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 12:39:19,644 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 12:39:19,644 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 12:39:19,645 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-96.i
[2023-12-23 12:39:20,750 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 12:39:20,966 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 12:39:20,967 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-96.i
[2023-12-23 12:39:20,975 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/687752fdc/af0d824e3d8d4fa8815826ebb5446836/FLAG153a00904
[2023-12-23 12:39:20,986 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/687752fdc/af0d824e3d8d4fa8815826ebb5446836
[2023-12-23 12:39:20,988 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 12:39:20,989 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 12:39:20,990 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 12:39:20,990 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 12:39:20,994 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 12:39:20,995 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 12:39:20" (1/1) ...
[2023-12-23 12:39:20,996 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3535507b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:39:20, skipping insertion in model container
[2023-12-23 12:39:20,996 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 12:39:20" (1/1) ...
[2023-12-23 12:39:21,033 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 12:39:21,178 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_fillercodestructure_filler-pr-cn_file-96.i[919,932]
[2023-12-23 12:39:21,287 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 12:39:21,309 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 12:39:21,319 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_fillercodestructure_filler-pr-cn_file-96.i[919,932]
[2023-12-23 12:39:21,355 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 12:39:21,371 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 12:39:21,372 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:39:21 WrapperNode
[2023-12-23 12:39:21,372 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 12:39:21,373 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 12:39:21,373 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 12:39:21,373 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 12:39:21,380 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:39:21" (1/1) ...
[2023-12-23 12:39:21,391 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:39:21" (1/1) ...
[2023-12-23 12:39:21,418 INFO  L138                Inliner]: procedures = 27, calls = 71, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 269
[2023-12-23 12:39:21,419 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 12:39:21,420 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 12:39:21,420 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 12:39:21,420 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 12:39:21,433 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:39:21" (1/1) ...
[2023-12-23 12:39:21,434 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:39:21" (1/1) ...
[2023-12-23 12:39:21,445 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:39:21" (1/1) ...
[2023-12-23 12:39:21,463 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 12:39:21,463 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:39:21" (1/1) ...
[2023-12-23 12:39:21,463 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:39:21" (1/1) ...
[2023-12-23 12:39:21,480 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:39:21" (1/1) ...
[2023-12-23 12:39:21,483 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:39:21" (1/1) ...
[2023-12-23 12:39:21,486 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:39:21" (1/1) ...
[2023-12-23 12:39:21,487 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:39:21" (1/1) ...
[2023-12-23 12:39:21,491 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 12:39:21,497 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 12:39:21,497 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 12:39:21,497 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 12:39:21,498 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:39:21" (1/1) ...
[2023-12-23 12:39:21,515 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 12:39:21,531 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 12:39:21,557 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 12:39:21,581 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 12:39:21,586 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 12:39:21,586 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 12:39:21,586 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 12:39:21,587 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 12:39:21,588 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 12:39:21,588 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 12:39:21,674 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 12:39:21,676 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 12:39:23,178 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 12:39:23,244 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 12:39:23,244 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 12:39:23,244 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 12:39:23 BoogieIcfgContainer
[2023-12-23 12:39:23,245 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 12:39:23,248 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 12:39:23,248 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 12:39:23,251 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 12:39:23,251 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 12:39:20" (1/3) ...
[2023-12-23 12:39:23,252 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2574a082 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 12:39:23, skipping insertion in model container
[2023-12-23 12:39:23,252 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:39:21" (2/3) ...
[2023-12-23 12:39:23,253 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2574a082 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 12:39:23, skipping insertion in model container
[2023-12-23 12:39:23,253 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 12:39:23" (3/3) ...
[2023-12-23 12:39:23,254 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-cn_file-96.i
[2023-12-23 12:39:23,268 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 12:39:23,268 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 12:39:23,308 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 12:39:23,314 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;@46dd2595, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 12:39:23,314 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 12:39:23,328 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 123 states, 62 states have (on average 1.3709677419354838) internal successors, (85), 63 states have internal predecessors, (85), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58)
[2023-12-23 12:39:23,359 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 340
[2023-12-23 12:39:23,359 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 12:39:23,360 INFO  L195           NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:39:23,361 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 12:39:23,365 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 12:39:23,366 INFO  L85        PathProgramCache]: Analyzing trace with hash 258226918, now seen corresponding path program 1 times
[2023-12-23 12:39:23,383 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 12:39:23,384 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2042749187]
[2023-12-23 12:39:23,384 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 12:39:23,385 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 12:39:23,385 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 12:39:23,387 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 12:39:23,391 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 12:39:23,840 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 12:39:23,853 INFO  L262         TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 12:39:23,869 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 12:39:23,948 INFO  L134       CoverageAnalysis]: Checked inductivity of 6612 backedges. 3338 proven. 0 refuted. 0 times theorem prover too weak. 3274 trivial. 0 not checked.
[2023-12-23 12:39:23,949 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 12:39:23,949 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 12:39:23,950 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2042749187]
[2023-12-23 12:39:23,950 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2042749187] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 12:39:23,950 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 12:39:23,950 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 12:39:23,952 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594498412]
[2023-12-23 12:39:23,952 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 12:39:23,958 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 12:39:23,958 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 12:39:23,988 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 12:39:23,988 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 12:39:23,991 INFO  L87              Difference]: Start difference. First operand  has 123 states, 62 states have (on average 1.3709677419354838) internal successors, (85), 63 states have internal predecessors, (85), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) Second operand  has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58)
[2023-12-23 12:39:24,780 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 12:39:24,780 INFO  L93              Difference]: Finished difference Result 240 states and 452 transitions.
[2023-12-23 12:39:24,805 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 12:39:24,806 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) Word has length 339
[2023-12-23 12:39:24,806 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 12:39:24,812 INFO  L225             Difference]: With dead ends: 240
[2023-12-23 12:39:24,813 INFO  L226             Difference]: Without dead ends: 118
[2023-12-23 12:39:24,817 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 338 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 12:39:24,820 INFO  L413           NwaCegarLoop]: 186 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2023-12-23 12:39:24,821 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 186 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2023-12-23 12:39:24,834 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 118 states.
[2023-12-23 12:39:24,864 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118.
[2023-12-23 12:39:24,865 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 118 states, 58 states have (on average 1.2586206896551724) internal successors, (73), 58 states have internal predecessors, (73), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58)
[2023-12-23 12:39:24,867 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 189 transitions.
[2023-12-23 12:39:24,868 INFO  L78                 Accepts]: Start accepts. Automaton has 118 states and 189 transitions. Word has length 339
[2023-12-23 12:39:24,868 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 12:39:24,868 INFO  L495      AbstractCegarLoop]: Abstraction has 118 states and 189 transitions.
[2023-12-23 12:39:24,869 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58)
[2023-12-23 12:39:24,869 INFO  L276                IsEmpty]: Start isEmpty. Operand 118 states and 189 transitions.
[2023-12-23 12:39:24,874 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 340
[2023-12-23 12:39:24,875 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 12:39:24,875 INFO  L195           NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:39:24,887 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 (2)] Ended with exit code 0
[2023-12-23 12:39:25,086 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 12:39:25,087 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 12:39:25,088 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 12:39:25,088 INFO  L85        PathProgramCache]: Analyzing trace with hash -875771602, now seen corresponding path program 1 times
[2023-12-23 12:39:25,089 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 12:39:25,089 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1865382844]
[2023-12-23 12:39:25,089 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 12:39:25,089 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 12:39:25,090 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 12:39:25,091 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 12:39:25,092 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 12:39:25,403 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 12:39:25,414 INFO  L262         TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-23 12:39:25,425 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 12:39:26,311 INFO  L134       CoverageAnalysis]: Checked inductivity of 6612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked.
[2023-12-23 12:39:26,312 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 12:39:26,312 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 12:39:26,312 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1865382844]
[2023-12-23 12:39:26,312 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1865382844] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 12:39:26,313 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 12:39:26,313 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-23 12:39:26,313 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769835408]
[2023-12-23 12:39:26,313 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 12:39:26,315 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-23 12:39:26,315 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 12:39:26,316 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-23 12:39:26,316 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-23 12:39:26,316 INFO  L87              Difference]: Start difference. First operand 118 states and 189 transitions. Second operand  has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58)
[2023-12-23 12:39:29,076 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 12:39:30,426 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 12:39:30,427 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 12:39:30,427 INFO  L93              Difference]: Finished difference Result 353 states and 566 transitions.
[2023-12-23 12:39:30,451 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-23 12:39:30,451 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) Word has length 339
[2023-12-23 12:39:30,453 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 12:39:30,457 INFO  L225             Difference]: With dead ends: 353
[2023-12-23 12:39:30,457 INFO  L226             Difference]: Without dead ends: 236
[2023-12-23 12:39:30,458 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-23 12:39:30,459 INFO  L413           NwaCegarLoop]: 185 mSDtfsCounter, 90 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time
[2023-12-23 12:39:30,460 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 550 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time]
[2023-12-23 12:39:30,461 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 236 states.
[2023-12-23 12:39:30,548 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 212.
[2023-12-23 12:39:30,549 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 212 states, 93 states have (on average 1.1612903225806452) internal successors, (108), 93 states have internal predecessors, (108), 116 states have call successors, (116), 2 states have call predecessors, (116), 2 states have return successors, (116), 116 states have call predecessors, (116), 116 states have call successors, (116)
[2023-12-23 12:39:30,551 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 340 transitions.
[2023-12-23 12:39:30,552 INFO  L78                 Accepts]: Start accepts. Automaton has 212 states and 340 transitions. Word has length 339
[2023-12-23 12:39:30,553 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 12:39:30,553 INFO  L495      AbstractCegarLoop]: Abstraction has 212 states and 340 transitions.
[2023-12-23 12:39:30,553 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58)
[2023-12-23 12:39:30,553 INFO  L276                IsEmpty]: Start isEmpty. Operand 212 states and 340 transitions.
[2023-12-23 12:39:30,557 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 340
[2023-12-23 12:39:30,557 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 12:39:30,558 INFO  L195           NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:39:30,573 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 12:39:30,771 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 12:39:30,771 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 12:39:30,772 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 12:39:30,772 INFO  L85        PathProgramCache]: Analyzing trace with hash 1830847792, now seen corresponding path program 1 times
[2023-12-23 12:39:30,773 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 12:39:30,773 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1947530785]
[2023-12-23 12:39:30,773 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 12:39:30,774 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 12:39:30,774 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 12:39:30,775 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 12:39:30,779 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 12:39:31,085 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 12:39:31,097 INFO  L262         TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 11 conjunts are in the unsatisfiable core
[2023-12-23 12:39:31,105 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 12:39:33,582 INFO  L134       CoverageAnalysis]: Checked inductivity of 6612 backedges. 3005 proven. 387 refuted. 0 times theorem prover too weak. 3220 trivial. 0 not checked.
[2023-12-23 12:39:33,582 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 12:39:33,798 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 12:39:33,798 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1947530785]
[2023-12-23 12:39:33,798 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1947530785] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 12:39:33,798 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [838103153]
[2023-12-23 12:39:33,798 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 12:39:33,799 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-23 12:39:33,799 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-23 12:39:33,846 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2023-12-23 12:39:33,850 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process
[2023-12-23 12:39:34,579 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 12:39:34,607 INFO  L262         TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-23 12:39:34,615 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 12:39:35,237 INFO  L134       CoverageAnalysis]: Checked inductivity of 6612 backedges. 1957 proven. 141 refuted. 0 times theorem prover too weak. 4514 trivial. 0 not checked.
[2023-12-23 12:39:35,237 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 12:39:35,435 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [838103153] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 12:39:35,435 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 12:39:35,435 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6] total 13
[2023-12-23 12:39:35,435 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837139775]
[2023-12-23 12:39:35,436 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 12:39:35,437 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2023-12-23 12:39:35,437 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 12:39:35,438 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2023-12-23 12:39:35,438 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272
[2023-12-23 12:39:35,439 INFO  L87              Difference]: Start difference. First operand 212 states and 340 transitions. Second operand  has 13 states, 13 states have (on average 8.307692307692308) internal successors, (108), 13 states have internal predecessors, (108), 4 states have call successors, (104), 4 states have call predecessors, (104), 7 states have return successors, (105), 4 states have call predecessors, (105), 4 states have call successors, (105)
[2023-12-23 12:39:41,105 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 12:39:42,696 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 12:39:42,697 INFO  L93              Difference]: Finished difference Result 494 states and 754 transitions.
[2023-12-23 12:39:42,697 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. 
[2023-12-23 12:39:42,698 INFO  L78                 Accepts]: Start accepts. Automaton has  has 13 states, 13 states have (on average 8.307692307692308) internal successors, (108), 13 states have internal predecessors, (108), 4 states have call successors, (104), 4 states have call predecessors, (104), 7 states have return successors, (105), 4 states have call predecessors, (105), 4 states have call successors, (105) Word has length 339
[2023-12-23 12:39:42,699 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 12:39:42,702 INFO  L225             Difference]: With dead ends: 494
[2023-12-23 12:39:42,702 INFO  L226             Difference]: Without dead ends: 377
[2023-12-23 12:39:42,704 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 738 GetRequests, 701 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=400, Invalid=1082, Unknown=0, NotChecked=0, Total=1482
[2023-12-23 12:39:42,705 INFO  L413           NwaCegarLoop]: 229 mSDtfsCounter, 178 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 1493 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 1699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 1493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time
[2023-12-23 12:39:42,705 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 975 Invalid, 1699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 1493 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time]
[2023-12-23 12:39:42,706 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 377 states.
[2023-12-23 12:39:42,749 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 352.
[2023-12-23 12:39:42,750 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 352 states, 164 states have (on average 1.1219512195121952) internal successors, (184), 165 states have internal predecessors, (184), 174 states have call successors, (174), 13 states have call predecessors, (174), 13 states have return successors, (174), 173 states have call predecessors, (174), 174 states have call successors, (174)
[2023-12-23 12:39:42,753 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 532 transitions.
[2023-12-23 12:39:42,753 INFO  L78                 Accepts]: Start accepts. Automaton has 352 states and 532 transitions. Word has length 339
[2023-12-23 12:39:42,754 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 12:39:42,754 INFO  L495      AbstractCegarLoop]: Abstraction has 352 states and 532 transitions.
[2023-12-23 12:39:42,755 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 13 states, 13 states have (on average 8.307692307692308) internal successors, (108), 13 states have internal predecessors, (108), 4 states have call successors, (104), 4 states have call predecessors, (104), 7 states have return successors, (105), 4 states have call predecessors, (105), 4 states have call successors, (105)
[2023-12-23 12:39:42,755 INFO  L276                IsEmpty]: Start isEmpty. Operand 352 states and 532 transitions.
[2023-12-23 12:39:42,757 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 340
[2023-12-23 12:39:42,757 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 12:39:42,757 INFO  L195           NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:39:42,773 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 12:39:42,979 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0
[2023-12-23 12:39:43,173 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=3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2023-12-23 12:39:43,174 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 12:39:43,174 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 12:39:43,174 INFO  L85        PathProgramCache]: Analyzing trace with hash 1832694834, now seen corresponding path program 1 times
[2023-12-23 12:39:43,175 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 12:39:43,175 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1660141741]
[2023-12-23 12:39:43,175 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 12:39:43,175 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 12:39:43,176 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 12:39:43,176 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 12:39:43,178 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2023-12-23 12:39:43,553 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 12:39:43,566 INFO  L262         TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 56 conjunts are in the unsatisfiable core
[2023-12-23 12:39:43,577 INFO  L285         TraceCheckSpWp]: Computing forward predicates...