/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-10_file-85.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 01:52:01,943 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 01:52:01,999 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 01:52:02,002 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 01:52:02,003 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 01:52:02,030 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 01:52:02,031 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 01:52:02,031 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 01:52:02,032 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 01:52:02,035 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 01:52:02,035 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 01:52:02,035 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 01:52:02,036 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 01:52:02,037 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 01:52:02,037 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 01:52:02,038 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 01:52:02,038 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 01:52:02,038 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 01:52:02,038 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 01:52:02,038 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 01:52:02,038 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 01:52:02,039 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 01:52:02,039 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 01:52:02,039 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 01:52:02,039 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 01:52:02,039 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 01:52:02,039 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 01:52:02,040 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 01:52:02,040 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 01:52:02,040 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 01:52:02,041 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 01:52:02,041 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 01:52:02,041 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 01:52:02,041 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 01:52:02,041 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 01:52:02,041 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 01:52:02,042 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 01:52:02,042 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 01:52:02,042 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 01:52:02,042 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 01:52:02,042 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 01:52:02,042 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 01:52:02,042 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 01:52:02,043 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 01:52:02,043 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 01:52:02,043 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 01:52:02,043 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 01:52:02,266 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 01:52:02,297 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 01:52:02,299 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 01:52:02,299 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 01:52:02,300 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 01:52:02,301 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-85.i
[2023-12-23 01:52:03,457 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 01:52:03,602 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 01:52:03,602 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-85.i
[2023-12-23 01:52:03,608 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c77863cb/304e70b64bf4454cba67ee6d624a7ecb/FLAGadc7eb926
[2023-12-23 01:52:03,619 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c77863cb/304e70b64bf4454cba67ee6d624a7ecb
[2023-12-23 01:52:03,621 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 01:52:03,622 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 01:52:03,623 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 01:52:03,623 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 01:52:03,627 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 01:52:03,628 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:52:03" (1/1) ...
[2023-12-23 01:52:03,629 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a9d4cab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:52:03, skipping insertion in model container
[2023-12-23 01:52:03,629 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:52:03" (1/1) ...
[2023-12-23 01:52:03,650 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 01:52:03,742 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-10_file-85.i[915,928]
[2023-12-23 01:52:03,778 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 01:52:03,789 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 01:52:03,797 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-10_file-85.i[915,928]
[2023-12-23 01:52:03,830 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 01:52:03,852 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 01:52:03,852 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:52:03 WrapperNode
[2023-12-23 01:52:03,852 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 01:52:03,853 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 01:52:03,853 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 01:52:03,853 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 01:52:03,858 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:52:03" (1/1) ...
[2023-12-23 01:52:03,869 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:52:03" (1/1) ...
[2023-12-23 01:52:03,886 INFO  L138                Inliner]: procedures = 27, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 159
[2023-12-23 01:52:03,886 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 01:52:03,887 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 01:52:03,887 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 01:52:03,887 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 01:52:03,895 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:52:03" (1/1) ...
[2023-12-23 01:52:03,895 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:52:03" (1/1) ...
[2023-12-23 01:52:03,899 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:52:03" (1/1) ...
[2023-12-23 01:52:03,908 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 01:52:03,908 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:52:03" (1/1) ...
[2023-12-23 01:52:03,908 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:52:03" (1/1) ...
[2023-12-23 01:52:03,915 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:52:03" (1/1) ...
[2023-12-23 01:52:03,929 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:52:03" (1/1) ...
[2023-12-23 01:52:03,931 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:52:03" (1/1) ...
[2023-12-23 01:52:03,932 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:52:03" (1/1) ...
[2023-12-23 01:52:03,935 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 01:52:03,936 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 01:52:03,936 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 01:52:03,936 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 01:52:03,936 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:52:03" (1/1) ...
[2023-12-23 01:52:03,942 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 01:52:03,957 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 01:52:03,973 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 01:52:04,006 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 01:52:04,024 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 01:52:04,025 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 01:52:04,025 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 01:52:04,026 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 01:52:04,026 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 01:52:04,026 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 01:52:04,128 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 01:52:04,130 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 01:52:06,283 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 01:52:06,316 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 01:52:06,316 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 01:52:06,317 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:52:06 BoogieIcfgContainer
[2023-12-23 01:52:06,317 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 01:52:06,318 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 01:52:06,318 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 01:52:06,320 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 01:52:06,321 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 01:52:03" (1/3) ...
[2023-12-23 01:52:06,321 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@487d054e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:52:06, skipping insertion in model container
[2023-12-23 01:52:06,321 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:52:03" (2/3) ...
[2023-12-23 01:52:06,321 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@487d054e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:52:06, skipping insertion in model container
[2023-12-23 01:52:06,321 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:52:06" (3/3) ...
[2023-12-23 01:52:06,322 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-10_file-85.i
[2023-12-23 01:52:06,336 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 01:52:06,336 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 01:52:06,371 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 01:52:06,376 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;@74be71a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 01:52:06,376 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 01:52:06,387 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 62 states, 37 states have (on average 1.4324324324324325) internal successors, (53), 38 states have internal predecessors, (53), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22)
[2023-12-23 01:52:06,396 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 139
[2023-12-23 01:52:06,396 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 01:52:06,397 INFO  L195           NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 01:52:06,397 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 01:52:06,401 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 01:52:06,401 INFO  L85        PathProgramCache]: Analyzing trace with hash 1528777596, now seen corresponding path program 1 times
[2023-12-23 01:52:06,411 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 01:52:06,411 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [543584266]
[2023-12-23 01:52:06,412 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 01:52:06,413 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 01:52:06,413 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 01:52:06,418 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 01:52:06,422 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 01:52:06,789 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 01:52:06,812 INFO  L262         TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 01:52:06,819 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 01:52:06,850 INFO  L134       CoverageAnalysis]: Checked inductivity of 924 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked.
[2023-12-23 01:52:06,850 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 01:52:06,850 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 01:52:06,850 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [543584266]
[2023-12-23 01:52:06,851 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [543584266] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 01:52:06,851 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 01:52:06,851 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 01:52:06,852 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858448238]
[2023-12-23 01:52:06,853 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 01:52:06,856 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 01:52:06,856 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 01:52:06,874 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 01:52:06,874 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 01:52:06,876 INFO  L87              Difference]: Start difference. First operand  has 62 states, 37 states have (on average 1.4324324324324325) internal successors, (53), 38 states have internal predecessors, (53), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand  has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22)
[2023-12-23 01:52:08,468 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 01:52:08,469 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 01:52:08,469 INFO  L93              Difference]: Finished difference Result 121 states and 214 transitions.
[2023-12-23 01:52:08,504 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 01:52:08,505 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 138
[2023-12-23 01:52:08,506 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 01:52:08,510 INFO  L225             Difference]: With dead ends: 121
[2023-12-23 01:52:08,511 INFO  L226             Difference]: Without dead ends: 60
[2023-12-23 01:52:08,513 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 137 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 01:52:08,515 INFO  L413           NwaCegarLoop]: 89 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2023-12-23 01:52:08,515 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time]
[2023-12-23 01:52:08,527 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 60 states.
[2023-12-23 01:52:08,552 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60.
[2023-12-23 01:52:08,554 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 60 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 36 states have internal predecessors, (48), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22)
[2023-12-23 01:52:08,555 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 92 transitions.
[2023-12-23 01:52:08,556 INFO  L78                 Accepts]: Start accepts. Automaton has 60 states and 92 transitions. Word has length 138
[2023-12-23 01:52:08,557 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 01:52:08,557 INFO  L495      AbstractCegarLoop]: Abstraction has 60 states and 92 transitions.
[2023-12-23 01:52:08,557 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22)
[2023-12-23 01:52:08,557 INFO  L276                IsEmpty]: Start isEmpty. Operand 60 states and 92 transitions.
[2023-12-23 01:52:08,560 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 139
[2023-12-23 01:52:08,560 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 01:52:08,561 INFO  L195           NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 01:52:08,582 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 01:52:08,776 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 01:52:08,777 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 01:52:08,778 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 01:52:08,778 INFO  L85        PathProgramCache]: Analyzing trace with hash 1194234376, now seen corresponding path program 1 times
[2023-12-23 01:52:08,778 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 01:52:08,778 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [307898636]
[2023-12-23 01:52:08,779 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 01:52:08,779 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 01:52:08,779 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 01:52:08,780 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 01:52:08,781 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 01:52:09,122 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 01:52:09,170 INFO  L262         TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-23 01:52:09,174 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 01:52:09,719 INFO  L134       CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked.
[2023-12-23 01:52:09,720 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 01:52:09,720 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 01:52:09,720 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [307898636]
[2023-12-23 01:52:09,720 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [307898636] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 01:52:09,720 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 01:52:09,720 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-23 01:52:09,720 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66181447]
[2023-12-23 01:52:09,720 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 01:52:09,721 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-23 01:52:09,722 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 01:52:09,722 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-23 01:52:09,722 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-23 01:52:09,722 INFO  L87              Difference]: Start difference. First operand 60 states and 92 transitions. Second operand  has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22)
[2023-12-23 01:52:11,770 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2023-12-23 01:52:11,903 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 01:52:11,903 INFO  L93              Difference]: Finished difference Result 119 states and 183 transitions.
[2023-12-23 01:52:11,932 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-23 01:52:11,933 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 138
[2023-12-23 01:52:11,933 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 01:52:11,934 INFO  L225             Difference]: With dead ends: 119
[2023-12-23 01:52:11,934 INFO  L226             Difference]: Without dead ends: 60
[2023-12-23 01:52:11,935 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2023-12-23 01:52:11,936 INFO  L413           NwaCegarLoop]: 84 mSDtfsCounter, 73 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time
[2023-12-23 01:52:11,936 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 106 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time]
[2023-12-23 01:52:11,937 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 60 states.
[2023-12-23 01:52:11,944 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60.
[2023-12-23 01:52:11,945 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 60 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 36 states have internal predecessors, (47), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22)
[2023-12-23 01:52:11,945 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 91 transitions.
[2023-12-23 01:52:11,945 INFO  L78                 Accepts]: Start accepts. Automaton has 60 states and 91 transitions. Word has length 138
[2023-12-23 01:52:11,947 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 01:52:11,947 INFO  L495      AbstractCegarLoop]: Abstraction has 60 states and 91 transitions.
[2023-12-23 01:52:11,947 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22)
[2023-12-23 01:52:11,947 INFO  L276                IsEmpty]: Start isEmpty. Operand 60 states and 91 transitions.
[2023-12-23 01:52:11,948 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 140
[2023-12-23 01:52:11,948 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 01:52:11,949 INFO  L195           NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 01:52:11,962 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 01:52:12,160 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 01:52:12,161 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 01:52:12,162 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 01:52:12,162 INFO  L85        PathProgramCache]: Analyzing trace with hash -2104516580, now seen corresponding path program 1 times
[2023-12-23 01:52:12,162 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 01:52:12,162 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [141462442]
[2023-12-23 01:52:12,163 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 01:52:12,163 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 01:52:12,163 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 01:52:12,165 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 01:52:12,175 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 01:52:12,564 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 01:52:12,585 INFO  L262         TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-12-23 01:52:12,589 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 01:52:14,095 INFO  L134       CoverageAnalysis]: Checked inductivity of 924 backedges. 477 proven. 27 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked.
[2023-12-23 01:52:14,095 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 01:52:14,716 INFO  L134       CoverageAnalysis]: Checked inductivity of 924 backedges. 36 proven. 27 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked.
[2023-12-23 01:52:14,716 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 01:52:14,716 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [141462442]
[2023-12-23 01:52:14,717 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [141462442] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 01:52:14,717 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 01:52:14,717 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 14
[2023-12-23 01:52:14,717 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749923784]
[2023-12-23 01:52:14,717 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 01:52:14,718 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2023-12-23 01:52:14,718 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 01:52:14,718 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2023-12-23 01:52:14,718 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182
[2023-12-23 01:52:14,719 INFO  L87              Difference]: Start difference. First operand 60 states and 91 transitions. Second operand  has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 14 states have internal predecessors, (64), 4 states have call successors, (44), 3 states have call predecessors, (44), 5 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44)
[2023-12-23 01:52:18,030 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 01:52:21,424 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 01:52:21,718 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 01:52:21,719 INFO  L93              Difference]: Finished difference Result 263 states and 395 transitions.
[2023-12-23 01:52:21,719 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2023-12-23 01:52:21,719 INFO  L78                 Accepts]: Start accepts. Automaton has  has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 14 states have internal predecessors, (64), 4 states have call successors, (44), 3 states have call predecessors, (44), 5 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) Word has length 139
[2023-12-23 01:52:21,720 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 01:52:21,721 INFO  L225             Difference]: With dead ends: 263
[2023-12-23 01:52:21,722 INFO  L226             Difference]: Without dead ends: 204
[2023-12-23 01:52:21,723 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 265 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=228, Invalid=584, Unknown=0, NotChecked=0, Total=812
[2023-12-23 01:52:21,723 INFO  L413           NwaCegarLoop]: 86 mSDtfsCounter, 362 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time
[2023-12-23 01:52:21,724 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 530 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time]
[2023-12-23 01:52:21,724 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 204 states.
[2023-12-23 01:52:21,756 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 145.
[2023-12-23 01:52:21,758 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 145 states, 85 states have (on average 1.2588235294117647) internal successors, (107), 86 states have internal predecessors, (107), 55 states have call successors, (55), 4 states have call predecessors, (55), 4 states have return successors, (55), 54 states have call predecessors, (55), 55 states have call successors, (55)
[2023-12-23 01:52:21,761 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 217 transitions.
[2023-12-23 01:52:21,761 INFO  L78                 Accepts]: Start accepts. Automaton has 145 states and 217 transitions. Word has length 139
[2023-12-23 01:52:21,762 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 01:52:21,763 INFO  L495      AbstractCegarLoop]: Abstraction has 145 states and 217 transitions.
[2023-12-23 01:52:21,763 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 14 states have internal predecessors, (64), 4 states have call successors, (44), 3 states have call predecessors, (44), 5 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44)
[2023-12-23 01:52:21,763 INFO  L276                IsEmpty]: Start isEmpty. Operand 145 states and 217 transitions.
[2023-12-23 01:52:21,768 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 140
[2023-12-23 01:52:21,768 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 01:52:21,768 INFO  L195           NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 01:52:21,781 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2023-12-23 01:52:21,981 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 01:52:21,983 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 01:52:21,987 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 01:52:21,987 INFO  L85        PathProgramCache]: Analyzing trace with hash 1438362392, now seen corresponding path program 1 times
[2023-12-23 01:52:21,988 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 01:52:21,988 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1851684725]
[2023-12-23 01:52:21,988 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 01:52:21,988 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 01:52:21,988 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 01:52:21,989 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 01:52:21,991 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 01:52:22,312 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 01:52:22,332 INFO  L262         TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 27 conjunts are in the unsatisfiable core
[2023-12-23 01:52:22,338 INFO  L285         TraceCheckSpWp]: Computing forward predicates...