/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-58.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 12:10:08,681 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 12:10:08,726 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 12:10:08,729 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 12:10:08,729 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 12:10:08,757 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 12:10:08,758 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 12:10:08,758 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 12:10:08,758 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 12:10:08,759 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 12:10:08,759 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 12:10:08,759 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 12:10:08,759 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 12:10:08,760 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 12:10:08,760 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 12:10:08,760 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 12:10:08,760 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 12:10:08,761 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 12:10:08,761 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 12:10:08,761 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 12:10:08,761 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 12:10:08,762 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 12:10:08,762 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 12:10:08,762 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 12:10:08,762 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 12:10:08,762 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 12:10:08,763 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 12:10:08,763 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 12:10:08,763 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 12:10:08,763 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 12:10:08,763 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 12:10:08,764 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 12:10:08,764 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 12:10:08,764 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 12:10:08,764 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 12:10:08,765 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 12:10:08,765 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 12:10:08,765 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 12:10:08,765 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 12:10:08,765 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 12:10:08,766 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 12:10:08,766 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 12:10:08,766 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 12:10:08,766 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 12:10:08,767 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 12:10:08,767 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 12:10:08,767 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 12:10:08,942 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 12:10:08,960 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 12:10:08,962 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 12:10:08,964 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 12:10:08,964 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 12:10:08,965 INFO  L431   ainManager$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-58.i
[2023-12-23 12:10:10,030 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 12:10:10,190 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 12:10:10,190 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-58.i
[2023-12-23 12:10:10,200 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/930bffbd7/c3e99371249345d3bedbcc7b9b1ccdb3/FLAGc96fe738b
[2023-12-23 12:10:10,212 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/930bffbd7/c3e99371249345d3bedbcc7b9b1ccdb3
[2023-12-23 12:10:10,214 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 12:10:10,215 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 12:10:10,215 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 12:10:10,216 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 12:10:10,223 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 12:10:10,224 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 12:10:10" (1/1) ...
[2023-12-23 12:10:10,224 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2afdea58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:10:10, skipping insertion in model container
[2023-12-23 12:10:10,224 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 12:10:10" (1/1) ...
[2023-12-23 12:10:10,253 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 12:10:10,374 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-58.i[919,932]
[2023-12-23 12:10:10,427 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 12:10:10,446 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 12:10:10,454 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-58.i[919,932]
[2023-12-23 12:10:10,485 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 12:10:10,503 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 12:10:10,503 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:10:10 WrapperNode
[2023-12-23 12:10:10,503 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 12:10:10,504 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 12:10:10,504 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 12:10:10,504 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 12:10:10,509 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:10:10" (1/1) ...
[2023-12-23 12:10:10,519 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:10:10" (1/1) ...
[2023-12-23 12:10:10,550 INFO  L138                Inliner]: procedures = 27, calls = 56, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 233
[2023-12-23 12:10:10,550 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 12:10:10,551 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 12:10:10,551 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 12:10:10,551 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 12:10:10,559 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:10:10" (1/1) ...
[2023-12-23 12:10:10,559 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:10:10" (1/1) ...
[2023-12-23 12:10:10,562 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:10:10" (1/1) ...
[2023-12-23 12:10:10,575 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 12:10:10,575 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:10:10" (1/1) ...
[2023-12-23 12:10:10,576 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:10:10" (1/1) ...
[2023-12-23 12:10:10,583 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:10:10" (1/1) ...
[2023-12-23 12:10:10,585 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:10:10" (1/1) ...
[2023-12-23 12:10:10,587 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:10:10" (1/1) ...
[2023-12-23 12:10:10,589 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:10:10" (1/1) ...
[2023-12-23 12:10:10,607 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 12:10:10,607 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 12:10:10,608 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 12:10:10,608 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 12:10:10,608 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:10:10" (1/1) ...
[2023-12-23 12:10:10,619 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 12:10:10,628 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 12:10:10,639 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 12:10:10,653 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 12:10:10,673 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 12:10:10,673 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 12:10:10,673 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 12:10:10,673 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 12:10:10,673 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 12:10:10,674 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 12:10:10,763 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 12:10:10,767 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 12:10:11,172 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 12:10:11,215 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 12:10:11,215 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 12:10:11,216 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 12:10:11 BoogieIcfgContainer
[2023-12-23 12:10:11,216 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 12:10:11,218 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 12:10:11,218 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 12:10:11,220 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 12:10:11,220 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 12:10:10" (1/3) ...
[2023-12-23 12:10:11,221 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aaf8976 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 12:10:11, skipping insertion in model container
[2023-12-23 12:10:11,221 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:10:10" (2/3) ...
[2023-12-23 12:10:11,221 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aaf8976 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 12:10:11, skipping insertion in model container
[2023-12-23 12:10:11,222 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 12:10:11" (3/3) ...
[2023-12-23 12:10:11,222 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-cn_file-58.i
[2023-12-23 12:10:11,235 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 12:10:11,236 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 12:10:11,279 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 12:10:11,285 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;@64cddfc7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 12:10:11,285 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 12:10:11,288 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 101 states, 55 states have (on average 1.4545454545454546) internal successors, (80), 56 states have internal predecessors, (80), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43)
[2023-12-23 12:10:11,299 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 258
[2023-12-23 12:10:11,299 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 12:10:11,300 INFO  L195           NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:10:11,300 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 12:10:11,304 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 12:10:11,304 INFO  L85        PathProgramCache]: Analyzing trace with hash -587764177, now seen corresponding path program 1 times
[2023-12-23 12:10:11,316 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 12:10:11,316 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [782180624]
[2023-12-23 12:10:11,317 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 12:10:11,318 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 12:10:11,318 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 12:10:11,320 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 12:10:11,323 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 12:10:11,582 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 12:10:11,593 INFO  L262         TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 12:10:11,602 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 12:10:11,639 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 692 proven. 0 refuted. 0 times theorem prover too weak. 2920 trivial. 0 not checked.
[2023-12-23 12:10:11,640 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 12:10:11,640 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 12:10:11,640 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [782180624]
[2023-12-23 12:10:11,641 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [782180624] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 12:10:11,641 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 12:10:11,641 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 12:10:11,642 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716920969]
[2023-12-23 12:10:11,643 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 12:10:11,646 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 12:10:11,646 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 12:10:11,663 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 12:10:11,663 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 12:10:11,665 INFO  L87              Difference]: Start difference. First operand  has 101 states, 55 states have (on average 1.4545454545454546) internal successors, (80), 56 states have internal predecessors, (80), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) Second operand  has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43)
[2023-12-23 12:10:11,715 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 12:10:11,716 INFO  L93              Difference]: Finished difference Result 199 states and 373 transitions.
[2023-12-23 12:10:11,721 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 12:10:11,723 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 257
[2023-12-23 12:10:11,723 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 12:10:11,728 INFO  L225             Difference]: With dead ends: 199
[2023-12-23 12:10:11,729 INFO  L226             Difference]: Without dead ends: 99
[2023-12-23 12:10:11,732 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 256 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 12:10:11,734 INFO  L413           NwaCegarLoop]: 158 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-23 12:10:11,735 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 158 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-23 12:10:11,746 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 99 states.
[2023-12-23 12:10:11,769 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99.
[2023-12-23 12:10:11,770 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 99 states, 54 states have (on average 1.3888888888888888) internal successors, (75), 54 states have internal predecessors, (75), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43)
[2023-12-23 12:10:11,772 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 161 transitions.
[2023-12-23 12:10:11,773 INFO  L78                 Accepts]: Start accepts. Automaton has 99 states and 161 transitions. Word has length 257
[2023-12-23 12:10:11,773 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 12:10:11,773 INFO  L495      AbstractCegarLoop]: Abstraction has 99 states and 161 transitions.
[2023-12-23 12:10:11,774 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43)
[2023-12-23 12:10:11,774 INFO  L276                IsEmpty]: Start isEmpty. Operand 99 states and 161 transitions.
[2023-12-23 12:10:11,785 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 258
[2023-12-23 12:10:11,785 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 12:10:11,786 INFO  L195           NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:10:11,800 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 12:10:11,992 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 12:10:11,993 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 12:10:11,994 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 12:10:11,995 INFO  L85        PathProgramCache]: Analyzing trace with hash -1601359435, now seen corresponding path program 1 times
[2023-12-23 12:10:11,995 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 12:10:11,996 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [467847697]
[2023-12-23 12:10:11,996 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 12:10:11,996 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 12:10:11,996 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 12:10:11,998 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 12:10:11,999 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 12:10:12,243 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 12:10:12,254 INFO  L262         TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-23 12:10:12,265 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 12:10:12,972 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 1848 proven. 63 refuted. 0 times theorem prover too weak. 1701 trivial. 0 not checked.
[2023-12-23 12:10:12,973 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 12:10:13,411 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 63 proven. 63 refuted. 0 times theorem prover too weak. 3486 trivial. 0 not checked.
[2023-12-23 12:10:13,412 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 12:10:13,415 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [467847697]
[2023-12-23 12:10:13,415 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [467847697] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 12:10:13,416 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 12:10:13,416 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9
[2023-12-23 12:10:13,416 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816602664]
[2023-12-23 12:10:13,416 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 12:10:13,419 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-12-23 12:10:13,420 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 12:10:13,421 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-12-23 12:10:13,421 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72
[2023-12-23 12:10:13,421 INFO  L87              Difference]: Start difference. First operand 99 states and 161 transitions. Second operand  has 9 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 4 states have call successors, (86), 3 states have call predecessors, (86), 5 states have return successors, (86), 4 states have call predecessors, (86), 4 states have call successors, (86)
[2023-12-23 12:10:14,409 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 12:10:14,410 INFO  L93              Difference]: Finished difference Result 356 states and 571 transitions.
[2023-12-23 12:10:14,410 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2023-12-23 12:10:14,411 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 4 states have call successors, (86), 3 states have call predecessors, (86), 5 states have return successors, (86), 4 states have call predecessors, (86), 4 states have call successors, (86) Word has length 257
[2023-12-23 12:10:14,412 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 12:10:14,414 INFO  L225             Difference]: With dead ends: 356
[2023-12-23 12:10:14,414 INFO  L226             Difference]: Without dead ends: 258
[2023-12-23 12:10:14,415 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 516 GetRequests, 505 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156
[2023-12-23 12:10:14,416 INFO  L413           NwaCegarLoop]: 127 mSDtfsCounter, 263 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2023-12-23 12:10:14,416 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 451 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2023-12-23 12:10:14,417 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 258 states.
[2023-12-23 12:10:14,473 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 249.
[2023-12-23 12:10:14,474 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 249 states, 137 states have (on average 1.364963503649635) internal successors, (187), 138 states have internal predecessors, (187), 107 states have call successors, (107), 4 states have call predecessors, (107), 4 states have return successors, (107), 106 states have call predecessors, (107), 107 states have call successors, (107)
[2023-12-23 12:10:14,478 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 401 transitions.
[2023-12-23 12:10:14,478 INFO  L78                 Accepts]: Start accepts. Automaton has 249 states and 401 transitions. Word has length 257
[2023-12-23 12:10:14,480 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 12:10:14,480 INFO  L495      AbstractCegarLoop]: Abstraction has 249 states and 401 transitions.
[2023-12-23 12:10:14,480 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 4 states have call successors, (86), 3 states have call predecessors, (86), 5 states have return successors, (86), 4 states have call predecessors, (86), 4 states have call successors, (86)
[2023-12-23 12:10:14,480 INFO  L276                IsEmpty]: Start isEmpty. Operand 249 states and 401 transitions.
[2023-12-23 12:10:14,484 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 259
[2023-12-23 12:10:14,484 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 12:10:14,484 INFO  L195           NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:10:14,494 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 12:10:14,691 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 12:10:14,692 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 12:10:14,693 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 12:10:14,693 INFO  L85        PathProgramCache]: Analyzing trace with hash -864731229, now seen corresponding path program 1 times
[2023-12-23 12:10:14,693 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 12:10:14,694 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [518708296]
[2023-12-23 12:10:14,694 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 12:10:14,694 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 12:10:14,694 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 12:10:14,695 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 12:10:14,697 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 12:10:14,865 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 12:10:14,876 INFO  L262         TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-23 12:10:14,880 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 12:10:15,031 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 1848 proven. 63 refuted. 0 times theorem prover too weak. 1701 trivial. 0 not checked.
[2023-12-23 12:10:15,032 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 12:10:15,199 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 63 proven. 63 refuted. 0 times theorem prover too weak. 3486 trivial. 0 not checked.
[2023-12-23 12:10:15,200 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 12:10:15,202 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [518708296]
[2023-12-23 12:10:15,204 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [518708296] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 12:10:15,204 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 12:10:15,204 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8
[2023-12-23 12:10:15,204 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318225824]
[2023-12-23 12:10:15,204 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 12:10:15,206 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-23 12:10:15,206 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 12:10:15,207 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-23 12:10:15,207 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2023-12-23 12:10:15,207 INFO  L87              Difference]: Start difference. First operand 249 states and 401 transitions. Second operand  has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 3 states have call successors, (64), 2 states have call predecessors, (64), 4 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65)
[2023-12-23 12:10:15,470 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 12:10:15,470 INFO  L93              Difference]: Finished difference Result 358 states and 572 transitions.
[2023-12-23 12:10:15,470 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2023-12-23 12:10:15,471 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 3 states have call successors, (64), 2 states have call predecessors, (64), 4 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) Word has length 258
[2023-12-23 12:10:15,472 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 12:10:15,473 INFO  L225             Difference]: With dead ends: 358
[2023-12-23 12:10:15,473 INFO  L226             Difference]: Without dead ends: 210
[2023-12-23 12:10:15,474 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 508 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132
[2023-12-23 12:10:15,474 INFO  L413           NwaCegarLoop]: 109 mSDtfsCounter, 74 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-23 12:10:15,475 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 243 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-23 12:10:15,475 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 210 states.
[2023-12-23 12:10:15,489 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 103.
[2023-12-23 12:10:15,490 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 103 states, 57 states have (on average 1.3333333333333333) internal successors, (76), 57 states have internal predecessors, (76), 43 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43)
[2023-12-23 12:10:15,490 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 162 transitions.
[2023-12-23 12:10:15,490 INFO  L78                 Accepts]: Start accepts. Automaton has 103 states and 162 transitions. Word has length 258
[2023-12-23 12:10:15,491 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 12:10:15,491 INFO  L495      AbstractCegarLoop]: Abstraction has 103 states and 162 transitions.
[2023-12-23 12:10:15,491 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 3 states have call successors, (64), 2 states have call predecessors, (64), 4 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65)
[2023-12-23 12:10:15,491 INFO  L276                IsEmpty]: Start isEmpty. Operand 103 states and 162 transitions.
[2023-12-23 12:10:15,493 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 260
[2023-12-23 12:10:15,493 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 12:10:15,493 INFO  L195           NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:10:15,503 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 12:10:15,700 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 12:10:15,703 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 12:10:15,703 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 12:10:15,703 INFO  L85        PathProgramCache]: Analyzing trace with hash 1290687008, now seen corresponding path program 1 times
[2023-12-23 12:10:15,704 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 12:10:15,704 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2107583857]
[2023-12-23 12:10:15,704 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 12:10:15,704 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 12:10:15,704 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 12:10:15,705 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 12:10:15,718 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 12:10:15,998 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 12:10:16,010 INFO  L262         TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 38 conjunts are in the unsatisfiable core
[2023-12-23 12:10:16,016 INFO  L285         TraceCheckSpWp]: Computing forward predicates...