/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-pe-ci_file-97.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 08:02:11,840 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 08:02:11,907 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 08:02:11,913 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 08:02:11,913 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 08:02:11,931 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 08:02:11,931 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 08:02:11,931 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 08:02:11,932 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 08:02:11,935 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 08:02:11,935 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 08:02:11,935 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 08:02:11,935 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 08:02:11,937 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 08:02:11,937 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 08:02:11,937 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 08:02:11,937 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 08:02:11,937 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 08:02:11,938 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 08:02:11,938 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 08:02:11,938 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 08:02:11,939 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 08:02:11,939 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 08:02:11,939 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 08:02:11,939 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 08:02:11,939 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 08:02:11,940 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 08:02:11,940 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 08:02:11,940 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 08:02:11,940 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 08:02:11,941 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 08:02:11,941 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 08:02:11,941 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 08:02:11,941 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 08:02:11,941 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 08:02:11,941 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 08:02:11,941 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 08:02:11,942 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 08:02:11,942 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 08:02:11,942 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 08:02:11,942 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 08:02:11,942 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 08:02:11,942 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 08:02:11,942 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 08:02:11,943 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 08:02:11,943 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 08:02:11,943 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 08:02:12,117 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 08:02:12,133 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 08:02:12,135 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 08:02:12,136 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 08:02:12,136 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 08:02:12,138 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-97.i
[2023-12-23 08:02:13,259 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 08:02:13,511 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 08:02:13,512 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-97.i
[2023-12-23 08:02:13,523 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dde8b9633/b42853b390c2495ca3b6845fb492c0f4/FLAGa7bf41219
[2023-12-23 08:02:13,538 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dde8b9633/b42853b390c2495ca3b6845fb492c0f4
[2023-12-23 08:02:13,540 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 08:02:13,541 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 08:02:13,544 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 08:02:13,544 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 08:02:13,547 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 08:02:13,548 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 08:02:13" (1/1) ...
[2023-12-23 08:02:13,548 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19791afd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:02:13, skipping insertion in model container
[2023-12-23 08:02:13,548 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 08:02:13" (1/1) ...
[2023-12-23 08:02:13,582 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 08:02:13,710 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-pe-ci_file-97.i[919,932]
[2023-12-23 08:02:13,779 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 08:02:13,789 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 08:02:13,799 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-pe-ci_file-97.i[919,932]
[2023-12-23 08:02:13,825 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 08:02:13,838 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 08:02:13,838 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:02:13 WrapperNode
[2023-12-23 08:02:13,838 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 08:02:13,839 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 08:02:13,839 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 08:02:13,839 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 08:02:13,844 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:02:13" (1/1) ...
[2023-12-23 08:02:13,853 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:02:13" (1/1) ...
[2023-12-23 08:02:13,873 INFO  L138                Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 169
[2023-12-23 08:02:13,874 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 08:02:13,874 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 08:02:13,874 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 08:02:13,874 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 08:02:13,886 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:02:13" (1/1) ...
[2023-12-23 08:02:13,887 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:02:13" (1/1) ...
[2023-12-23 08:02:13,920 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:02:13" (1/1) ...
[2023-12-23 08:02:13,931 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 08:02:13,931 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:02:13" (1/1) ...
[2023-12-23 08:02:13,931 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:02:13" (1/1) ...
[2023-12-23 08:02:13,938 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:02:13" (1/1) ...
[2023-12-23 08:02:13,941 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:02:13" (1/1) ...
[2023-12-23 08:02:13,943 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:02:13" (1/1) ...
[2023-12-23 08:02:13,944 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:02:13" (1/1) ...
[2023-12-23 08:02:13,947 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 08:02:13,948 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 08:02:13,948 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 08:02:13,948 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 08:02:13,949 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:02:13" (1/1) ...
[2023-12-23 08:02:13,952 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 08:02:13,962 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 08:02:13,977 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 08:02:13,982 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 08:02:14,004 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 08:02:14,005 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 08:02:14,005 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 08:02:14,005 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 08:02:14,005 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 08:02:14,005 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 08:02:14,061 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 08:02:14,063 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 08:02:20,404 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 08:02:20,475 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 08:02:20,475 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 08:02:20,476 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 08:02:20 BoogieIcfgContainer
[2023-12-23 08:02:20,476 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 08:02:20,477 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 08:02:20,477 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 08:02:20,479 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 08:02:20,479 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 08:02:13" (1/3) ...
[2023-12-23 08:02:20,480 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cbddbba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 08:02:20, skipping insertion in model container
[2023-12-23 08:02:20,480 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:02:13" (2/3) ...
[2023-12-23 08:02:20,480 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cbddbba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 08:02:20, skipping insertion in model container
[2023-12-23 08:02:20,480 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 08:02:20" (3/3) ...
[2023-12-23 08:02:20,481 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-ci_file-97.i
[2023-12-23 08:02:20,491 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 08:02:20,492 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 08:02:20,531 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 08:02:20,537 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;@3f7f1ea4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 08:02:20,537 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 08:02:20,539 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 69 states, 46 states have (on average 1.5434782608695652) internal successors, (71), 47 states have internal predecessors, (71), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20)
[2023-12-23 08:02:20,551 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 133
[2023-12-23 08:02:20,551 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 08:02:20,552 INFO  L195           NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:02:20,552 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 08:02:20,557 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 08:02:20,557 INFO  L85        PathProgramCache]: Analyzing trace with hash -104616159, now seen corresponding path program 1 times
[2023-12-23 08:02:20,569 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 08:02:20,569 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [255510539]
[2023-12-23 08:02:20,569 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 08:02:20,570 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 08:02:20,570 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 08:02:20,572 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 08:02:20,573 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 08:02:20,897 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 08:02:20,913 INFO  L262         TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 08:02:20,919 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 08:02:20,965 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 390 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked.
[2023-12-23 08:02:20,965 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 08:02:20,965 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 08:02:20,965 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [255510539]
[2023-12-23 08:02:20,966 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [255510539] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 08:02:20,966 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 08:02:20,966 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 08:02:20,967 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192859100]
[2023-12-23 08:02:20,968 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 08:02:20,976 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 08:02:20,976 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 08:02:20,996 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 08:02:21,002 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 08:02:21,004 INFO  L87              Difference]: Start difference. First operand  has 69 states, 46 states have (on average 1.5434782608695652) internal successors, (71), 47 states have internal predecessors, (71), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand  has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20)
[2023-12-23 08:02:21,042 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 08:02:21,043 INFO  L93              Difference]: Finished difference Result 134 states and 238 transitions.
[2023-12-23 08:02:21,045 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 08:02:21,046 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 132
[2023-12-23 08:02:21,046 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 08:02:21,051 INFO  L225             Difference]: With dead ends: 134
[2023-12-23 08:02:21,051 INFO  L226             Difference]: Without dead ends: 66
[2023-12-23 08:02:21,053 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 131 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 08:02:21,055 INFO  L413           NwaCegarLoop]: 98 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, 98 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 08:02:21,068 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 98 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-23 08:02:21,079 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 66 states.
[2023-12-23 08:02:21,093 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66.
[2023-12-23 08:02:21,094 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 66 states, 44 states have (on average 1.3863636363636365) internal successors, (61), 44 states have internal predecessors, (61), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20)
[2023-12-23 08:02:21,096 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 101 transitions.
[2023-12-23 08:02:21,113 INFO  L78                 Accepts]: Start accepts. Automaton has 66 states and 101 transitions. Word has length 132
[2023-12-23 08:02:21,113 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 08:02:21,113 INFO  L495      AbstractCegarLoop]: Abstraction has 66 states and 101 transitions.
[2023-12-23 08:02:21,113 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20)
[2023-12-23 08:02:21,114 INFO  L276                IsEmpty]: Start isEmpty. Operand 66 states and 101 transitions.
[2023-12-23 08:02:21,115 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 133
[2023-12-23 08:02:21,115 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 08:02:21,116 INFO  L195           NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:02:21,139 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 08:02:21,326 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 08:02:21,326 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 08:02:21,327 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 08:02:21,327 INFO  L85        PathProgramCache]: Analyzing trace with hash -1739282151, now seen corresponding path program 1 times
[2023-12-23 08:02:21,327 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 08:02:21,328 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1619617331]
[2023-12-23 08:02:21,328 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 08:02:21,328 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 08:02:21,328 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 08:02:21,329 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 08:02:21,331 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 08:02:21,639 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 08:02:21,653 INFO  L262         TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-23 08:02:21,657 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 08:02:22,062 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 289 proven. 12 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked.
[2023-12-23 08:02:22,063 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 08:02:22,414 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 45 proven. 12 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked.
[2023-12-23 08:02:22,415 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 08:02:22,415 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1619617331]
[2023-12-23 08:02:22,415 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1619617331] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 08:02:22,415 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 08:02:22,415 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8
[2023-12-23 08:02:22,415 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209053829]
[2023-12-23 08:02:22,416 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 08:02:22,417 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-23 08:02:22,417 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 08:02:22,418 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-23 08:02:22,418 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2023-12-23 08:02:22,418 INFO  L87              Difference]: Start difference. First operand 66 states and 101 transitions. Second operand  has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25)
[2023-12-23 08:02:23,350 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 08:02:23,350 INFO  L93              Difference]: Finished difference Result 136 states and 203 transitions.
[2023-12-23 08:02:23,353 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-23 08:02:23,353 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 132
[2023-12-23 08:02:23,354 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 08:02:23,355 INFO  L225             Difference]: With dead ends: 136
[2023-12-23 08:02:23,355 INFO  L226             Difference]: Without dead ends: 71
[2023-12-23 08:02:23,356 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 256 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210
[2023-12-23 08:02:23,357 INFO  L413           NwaCegarLoop]: 58 mSDtfsCounter, 138 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2023-12-23 08:02:23,357 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 130 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2023-12-23 08:02:23,358 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 71 states.
[2023-12-23 08:02:23,366 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 67.
[2023-12-23 08:02:23,366 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 67 states, 44 states have (on average 1.2272727272727273) internal successors, (54), 44 states have internal predecessors, (54), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20)
[2023-12-23 08:02:23,367 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 94 transitions.
[2023-12-23 08:02:23,368 INFO  L78                 Accepts]: Start accepts. Automaton has 67 states and 94 transitions. Word has length 132
[2023-12-23 08:02:23,368 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 08:02:23,368 INFO  L495      AbstractCegarLoop]: Abstraction has 67 states and 94 transitions.
[2023-12-23 08:02:23,368 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25)
[2023-12-23 08:02:23,368 INFO  L276                IsEmpty]: Start isEmpty. Operand 67 states and 94 transitions.
[2023-12-23 08:02:23,370 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 133
[2023-12-23 08:02:23,370 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 08:02:23,370 INFO  L195           NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:02:23,394 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2023-12-23 08:02:23,581 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 08:02:23,582 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 08:02:23,582 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 08:02:23,582 INFO  L85        PathProgramCache]: Analyzing trace with hash -985343143, now seen corresponding path program 1 times
[2023-12-23 08:02:23,583 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 08:02:23,583 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1292314591]
[2023-12-23 08:02:23,583 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 08:02:23,583 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 08:02:23,583 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 08:02:23,588 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 08:02:23,632 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 08:02:23,899 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 08:02:23,919 INFO  L262         TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-23 08:02:23,923 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 08:02:24,812 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2023-12-23 08:02:24,812 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 08:02:24,812 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 08:02:24,813 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1292314591]
[2023-12-23 08:02:24,813 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1292314591] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 08:02:24,813 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 08:02:24,813 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-23 08:02:24,813 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517668561]
[2023-12-23 08:02:24,813 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 08:02:24,813 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-23 08:02:24,813 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 08:02:24,814 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-23 08:02:24,814 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-23 08:02:24,814 INFO  L87              Difference]: Start difference. First operand 67 states and 94 transitions. Second operand  has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-23 08:02:25,410 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 08:02:25,411 INFO  L93              Difference]: Finished difference Result 176 states and 249 transitions.
[2023-12-23 08:02:25,411 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-23 08:02:25,411 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 132
[2023-12-23 08:02:25,412 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 08:02:25,413 INFO  L225             Difference]: With dead ends: 176
[2023-12-23 08:02:25,413 INFO  L226             Difference]: Without dead ends: 110
[2023-12-23 08:02:25,414 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-23 08:02:25,414 INFO  L413           NwaCegarLoop]: 134 mSDtfsCounter, 107 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2023-12-23 08:02:25,415 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 271 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2023-12-23 08:02:25,415 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 110 states.
[2023-12-23 08:02:25,425 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 67.
[2023-12-23 08:02:25,426 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 67 states, 44 states have (on average 1.2045454545454546) internal successors, (53), 44 states have internal predecessors, (53), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20)
[2023-12-23 08:02:25,427 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 93 transitions.
[2023-12-23 08:02:25,427 INFO  L78                 Accepts]: Start accepts. Automaton has 67 states and 93 transitions. Word has length 132
[2023-12-23 08:02:25,427 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 08:02:25,427 INFO  L495      AbstractCegarLoop]: Abstraction has 67 states and 93 transitions.
[2023-12-23 08:02:25,427 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-23 08:02:25,427 INFO  L276                IsEmpty]: Start isEmpty. Operand 67 states and 93 transitions.
[2023-12-23 08:02:25,429 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 134
[2023-12-23 08:02:25,429 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 08:02:25,429 INFO  L195           NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:02:25,439 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 08:02:25,634 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 08:02:25,635 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 08:02:25,635 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 08:02:25,636 INFO  L85        PathProgramCache]: Analyzing trace with hash 1113340114, now seen corresponding path program 1 times
[2023-12-23 08:02:25,636 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 08:02:25,636 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1121299187]
[2023-12-23 08:02:25,636 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 08:02:25,636 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 08:02:25,636 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 08:02:25,638 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 08:02:25,648 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 08:02:25,935 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 08:02:25,950 INFO  L262         TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-23 08:02:25,954 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 08:02:27,221 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2023-12-23 08:02:27,221 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 08:02:27,222 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 08:02:27,222 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1121299187]
[2023-12-23 08:02:27,222 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1121299187] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 08:02:27,222 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 08:02:27,222 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-23 08:02:27,222 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178390667]
[2023-12-23 08:02:27,222 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 08:02:27,223 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-23 08:02:27,223 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 08:02:27,223 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-23 08:02:27,223 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-23 08:02:27,224 INFO  L87              Difference]: Start difference. First operand 67 states and 93 transitions. Second operand  has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-23 08:02:27,664 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 08:02:27,664 INFO  L93              Difference]: Finished difference Result 213 states and 295 transitions.
[2023-12-23 08:02:27,666 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-23 08:02:27,666 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 133
[2023-12-23 08:02:27,666 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 08:02:27,668 INFO  L225             Difference]: With dead ends: 213
[2023-12-23 08:02:27,668 INFO  L226             Difference]: Without dead ends: 147
[2023-12-23 08:02:27,668 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 129 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 08:02:27,669 INFO  L413           NwaCegarLoop]: 97 mSDtfsCounter, 69 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2023-12-23 08:02:27,669 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 300 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2023-12-23 08:02:27,670 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 147 states.
[2023-12-23 08:02:27,688 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 131.
[2023-12-23 08:02:27,688 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 131 states, 86 states have (on average 1.197674418604651) internal successors, (103), 86 states have internal predecessors, (103), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40)
[2023-12-23 08:02:27,689 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 183 transitions.
[2023-12-23 08:02:27,689 INFO  L78                 Accepts]: Start accepts. Automaton has 131 states and 183 transitions. Word has length 133
[2023-12-23 08:02:27,690 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 08:02:27,690 INFO  L495      AbstractCegarLoop]: Abstraction has 131 states and 183 transitions.
[2023-12-23 08:02:27,690 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-23 08:02:27,690 INFO  L276                IsEmpty]: Start isEmpty. Operand 131 states and 183 transitions.
[2023-12-23 08:02:27,691 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 135
[2023-12-23 08:02:27,691 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 08:02:27,691 INFO  L195           NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:02:27,706 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 (5)] Ended with exit code 0
[2023-12-23 08:02:27,907 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /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 08:02:27,908 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 08:02:27,908 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 08:02:27,908 INFO  L85        PathProgramCache]: Analyzing trace with hash -368747334, now seen corresponding path program 1 times
[2023-12-23 08:02:27,909 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 08:02:27,910 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [74681197]
[2023-12-23 08:02:27,910 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 08:02:27,910 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 08:02:27,910 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 08:02:27,911 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 08:02:27,955 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2023-12-23 08:02:28,440 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 08:02:28,455 INFO  L262         TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 35 conjunts are in the unsatisfiable core
[2023-12-23 08:02:28,460 INFO  L285         TraceCheckSpWp]: Computing forward predicates...