/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_codestructure_dependencies_file-67.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-22 20:10:03,389 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-22 20:10:03,427 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-12-22 20:10:03,430 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-22 20:10:03,431 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-22 20:10:03,445 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-22 20:10:03,445 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-22 20:10:03,446 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-22 20:10:03,446 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-22 20:10:03,446 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-22 20:10:03,447 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-22 20:10:03,447 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-22 20:10:03,447 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-22 20:10:03,447 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-22 20:10:03,447 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-22 20:10:03,448 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-22 20:10:03,448 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-22 20:10:03,448 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-22 20:10:03,448 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-22 20:10:03,448 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-22 20:10:03,449 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-22 20:10:03,449 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-22 20:10:03,449 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-22 20:10:03,449 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-22 20:10:03,450 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-22 20:10:03,450 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-22 20:10:03,450 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-22 20:10:03,450 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-22 20:10:03,450 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-22 20:10:03,450 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-22 20:10:03,450 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-22 20:10:03,450 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-22 20:10:03,451 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-22 20:10:03,451 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-22 20:10:03,451 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 20:10:03,451 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-22 20:10:03,451 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-22 20:10:03,451 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-22 20:10:03,451 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-22 20:10:03,451 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-22 20:10:03,452 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-22 20:10:03,452 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-22 20:10:03,452 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-22 20:10:03,452 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-22 20:10:03,452 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-22 20:10:03,452 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-22 20:10:03,452 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-22 20:10:03,647 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-22 20:10:03,665 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-22 20:10:03,667 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-22 20:10:03,668 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-22 20:10:03,668 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-22 20:10:03,670 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_codestructure_dependencies_file-67.i
[2023-12-22 20:10:04,629 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-22 20:10:04,770 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-22 20:10:04,771 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_codestructure_dependencies_file-67.i
[2023-12-22 20:10:04,780 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff9ce6f49/88aef466e59e41dd83a4341c05bb7ef8/FLAGc46063557
[2023-12-22 20:10:04,790 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff9ce6f49/88aef466e59e41dd83a4341c05bb7ef8
[2023-12-22 20:10:04,792 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-22 20:10:04,793 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-22 20:10:04,794 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-22 20:10:04,794 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-22 20:10:04,797 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-22 20:10:04,797 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:10:04" (1/1) ...
[2023-12-22 20:10:04,798 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7be3f16d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:04, skipping insertion in model container
[2023-12-22 20:10:04,798 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:10:04" (1/1) ...
[2023-12-22 20:10:04,816 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-22 20:10:04,919 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_codestructure_dependencies_file-67.i[919,932]
[2023-12-22 20:10:04,957 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 20:10:04,967 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-22 20:10:04,976 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_codestructure_dependencies_file-67.i[919,932]
[2023-12-22 20:10:04,993 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 20:10:05,004 INFO  L206         MainTranslator]: Completed translation
[2023-12-22 20:10:05,005 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:05 WrapperNode
[2023-12-22 20:10:05,005 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-22 20:10:05,006 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-22 20:10:05,006 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-22 20:10:05,006 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-22 20:10:05,010 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:05" (1/1) ...
[2023-12-22 20:10:05,019 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:05" (1/1) ...
[2023-12-22 20:10:05,036 INFO  L138                Inliner]: procedures = 27, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 146
[2023-12-22 20:10:05,037 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-22 20:10:05,037 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-22 20:10:05,037 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-22 20:10:05,037 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-22 20:10:05,047 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:05" (1/1) ...
[2023-12-22 20:10:05,048 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:05" (1/1) ...
[2023-12-22 20:10:05,058 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:05" (1/1) ...
[2023-12-22 20:10:05,069 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].
[2023-12-22 20:10:05,070 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:05" (1/1) ...
[2023-12-22 20:10:05,070 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:05" (1/1) ...
[2023-12-22 20:10:05,076 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:05" (1/1) ...
[2023-12-22 20:10:05,084 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:05" (1/1) ...
[2023-12-22 20:10:05,086 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:05" (1/1) ...
[2023-12-22 20:10:05,087 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:05" (1/1) ...
[2023-12-22 20:10:05,089 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-22 20:10:05,090 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-22 20:10:05,090 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-22 20:10:05,090 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-22 20:10:05,091 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:05" (1/1) ...
[2023-12-22 20:10:05,101 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 20:10:05,109 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-22 20:10:05,125 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)
[2023-12-22 20:10:05,127 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
[2023-12-22 20:10:05,145 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-22 20:10:05,146 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-22 20:10:05,146 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-22 20:10:05,147 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-22 20:10:05,147 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-22 20:10:05,147 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-22 20:10:05,226 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-22 20:10:05,227 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-22 20:10:06,269 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-22 20:10:06,352 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-22 20:10:06,353 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-22 20:10:06,353 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:10:06 BoogieIcfgContainer
[2023-12-22 20:10:06,353 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-22 20:10:06,355 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-22 20:10:06,355 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-22 20:10:06,357 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-22 20:10:06,357 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 08:10:04" (1/3) ...
[2023-12-22 20:10:06,357 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b02e11d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:10:06, skipping insertion in model container
[2023-12-22 20:10:06,357 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:05" (2/3) ...
[2023-12-22 20:10:06,358 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b02e11d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:10:06, skipping insertion in model container
[2023-12-22 20:10:06,358 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:10:06" (3/3) ...
[2023-12-22 20:10:06,359 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_codestructure_dependencies_file-67.i
[2023-12-22 20:10:06,371 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-22 20:10:06,372 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-22 20:10:06,400 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-22 20:10:06,404 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;@62e55b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-22 20:10:06,405 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-22 20:10:06,408 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 59 states, 34 states have (on average 1.4705882352941178) internal successors, (50), 35 states have internal predecessors, (50), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22)
[2023-12-22 20:10:06,419 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 133
[2023-12-22 20:10:06,419 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 20:10:06,419 INFO  L195           NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 20:10:06,431 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 20:10:06,435 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 20:10:06,436 INFO  L85        PathProgramCache]: Analyzing trace with hash -885598083, now seen corresponding path program 1 times
[2023-12-22 20:10:06,444 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 20:10:06,444 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [9570392]
[2023-12-22 20:10:06,445 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 20:10:06,445 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 20:10:06,445 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 20:10:06,447 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 20:10:06,480 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
[2023-12-22 20:10:06,698 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 20:10:06,711 INFO  L262         TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-22 20:10:06,718 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 20:10:06,745 INFO  L134       CoverageAnalysis]: Checked inductivity of 924 backedges. 482 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked.
[2023-12-22 20:10:06,745 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 20:10:06,746 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 20:10:06,746 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [9570392]
[2023-12-22 20:10:06,746 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [9570392] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 20:10:06,746 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 20:10:06,746 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 20:10:06,748 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754636996]
[2023-12-22 20:10:06,748 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 20:10:06,751 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-22 20:10:06,751 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 20:10:06,769 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-22 20:10:06,769 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-22 20:10:06,771 INFO  L87              Difference]: Start difference. First operand  has 59 states, 34 states have (on average 1.4705882352941178) internal successors, (50), 35 states have internal predecessors, (50), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand  has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22)
[2023-12-22 20:10:07,480 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 20:10:07,480 INFO  L93              Difference]: Finished difference Result 115 states and 208 transitions.
[2023-12-22 20:10:07,502 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-22 20:10:07,504 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 132
[2023-12-22 20:10:07,504 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 20:10:07,509 INFO  L225             Difference]: With dead ends: 115
[2023-12-22 20:10:07,509 INFO  L226             Difference]: Without dead ends: 57
[2023-12-22 20:10:07,511 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
[2023-12-22 20:10:07,514 INFO  L413           NwaCegarLoop]: 86 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2023-12-22 20:10:07,514 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 86 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2023-12-22 20:10:07,526 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 57 states.
[2023-12-22 20:10:07,548 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57.
[2023-12-22 20:10:07,549 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 57 states, 33 states have (on average 1.3636363636363635) internal successors, (45), 33 states have internal predecessors, (45), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22)
[2023-12-22 20:10:07,550 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 89 transitions.
[2023-12-22 20:10:07,551 INFO  L78                 Accepts]: Start accepts. Automaton has 57 states and 89 transitions. Word has length 132
[2023-12-22 20:10:07,551 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 20:10:07,551 INFO  L495      AbstractCegarLoop]: Abstraction has 57 states and 89 transitions.
[2023-12-22 20:10:07,551 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22)
[2023-12-22 20:10:07,552 INFO  L276                IsEmpty]: Start isEmpty. Operand 57 states and 89 transitions.
[2023-12-22 20:10:07,554 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 133
[2023-12-22 20:10:07,554 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 20:10:07,555 INFO  L195           NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 20:10:07,572 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
[2023-12-22 20:10:07,763 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
[2023-12-22 20:10:07,764 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 20:10:07,765 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 20:10:07,765 INFO  L85        PathProgramCache]: Analyzing trace with hash -1878478923, now seen corresponding path program 1 times
[2023-12-22 20:10:07,765 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 20:10:07,765 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [291200954]
[2023-12-22 20:10:07,766 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 20:10:07,766 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
[2023-12-22 20:10:07,766 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 20:10:07,768 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)
[2023-12-22 20:10:07,769 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
[2023-12-22 20:10:08,001 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 20:10:08,018 INFO  L262         TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-22 20:10:08,022 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 20:10:08,368 INFO  L134       CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked.
[2023-12-22 20:10:08,369 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 20:10:08,369 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 20:10:08,369 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [291200954]
[2023-12-22 20:10:08,369 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [291200954] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 20:10:08,369 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 20:10:08,369 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 20:10:08,369 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591550184]
[2023-12-22 20:10:08,370 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 20:10:08,371 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-22 20:10:08,371 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 20:10:08,372 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-22 20:10:08,372 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-22 20:10:08,372 INFO  L87              Difference]: Start difference. First operand 57 states and 89 transitions. Second operand  has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22)
[2023-12-22 20:10:09,788 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 20:10:09,788 INFO  L93              Difference]: Finished difference Result 170 states and 266 transitions.
[2023-12-22 20:10:09,810 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-22 20:10:09,811 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 132
[2023-12-22 20:10:09,811 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 20:10:09,812 INFO  L225             Difference]: With dead ends: 170
[2023-12-22 20:10:09,813 INFO  L226             Difference]: Without dead ends: 114
[2023-12-22 20:10:09,813 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-22 20:10:09,814 INFO  L413           NwaCegarLoop]: 83 mSDtfsCounter, 55 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2023-12-22 20:10:09,815 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 246 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2023-12-22 20:10:09,815 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 114 states.
[2023-12-22 20:10:09,829 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 102.
[2023-12-22 20:10:09,830 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 102 states, 55 states have (on average 1.2727272727272727) internal successors, (70), 55 states have internal predecessors, (70), 44 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44)
[2023-12-22 20:10:09,831 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 158 transitions.
[2023-12-22 20:10:09,832 INFO  L78                 Accepts]: Start accepts. Automaton has 102 states and 158 transitions. Word has length 132
[2023-12-22 20:10:09,832 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 20:10:09,832 INFO  L495      AbstractCegarLoop]: Abstraction has 102 states and 158 transitions.
[2023-12-22 20:10:09,832 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22)
[2023-12-22 20:10:09,832 INFO  L276                IsEmpty]: Start isEmpty. Operand 102 states and 158 transitions.
[2023-12-22 20:10:09,834 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 135
[2023-12-22 20:10:09,834 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 20:10:09,834 INFO  L195           NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 20:10:09,842 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
[2023-12-22 20:10:10,042 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
[2023-12-22 20:10:10,043 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 20:10:10,043 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 20:10:10,043 INFO  L85        PathProgramCache]: Analyzing trace with hash -2087327001, now seen corresponding path program 1 times
[2023-12-22 20:10:10,044 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 20:10:10,044 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1917281541]
[2023-12-22 20:10:10,044 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 20:10:10,044 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
[2023-12-22 20:10:10,044 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 20:10:10,045 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)
[2023-12-22 20:10:10,066 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
[2023-12-22 20:10:10,250 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 20:10:10,263 INFO  L262         TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-22 20:10:10,266 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 20:10:10,533 INFO  L134       CoverageAnalysis]: Checked inductivity of 924 backedges. 177 proven. 57 refuted. 0 times theorem prover too weak. 690 trivial. 0 not checked.
[2023-12-22 20:10:10,533 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-22 20:10:10,768 INFO  L134       CoverageAnalysis]: Checked inductivity of 924 backedges. 6 proven. 57 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked.
[2023-12-22 20:10:10,768 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 20:10:10,768 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1917281541]
[2023-12-22 20:10:10,768 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1917281541] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-22 20:10:10,769 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-22 20:10:10,769 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2023-12-22 20:10:10,769 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519487218]
[2023-12-22 20:10:10,769 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-22 20:10:10,769 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-22 20:10:10,770 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 20:10:10,770 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-22 20:10:10,770 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-22 20:10:10,771 INFO  L87              Difference]: Start difference. First operand 102 states and 158 transitions. Second operand  has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (41), 2 states have call predecessors, (41), 4 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42)
[2023-12-22 20:10:12,092 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 20:10:12,092 INFO  L93              Difference]: Finished difference Result 168 states and 252 transitions.
[2023-12-22 20:10:12,116 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2023-12-22 20:10:12,116 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (41), 2 states have call predecessors, (41), 4 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 134
[2023-12-22 20:10:12,117 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 20:10:12,118 INFO  L225             Difference]: With dead ends: 168
[2023-12-22 20:10:12,118 INFO  L226             Difference]: Without dead ends: 112
[2023-12-22 20:10:12,119 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 260 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110
[2023-12-22 20:10:12,119 INFO  L413           NwaCegarLoop]: 56 mSDtfsCounter, 51 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2023-12-22 20:10:12,120 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 119 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2023-12-22 20:10:12,120 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 112 states.
[2023-12-22 20:10:12,131 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 108.
[2023-12-22 20:10:12,131 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 108 states, 59 states have (on average 1.1864406779661016) internal successors, (70), 59 states have internal predecessors, (70), 44 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44)
[2023-12-22 20:10:12,133 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 158 transitions.
[2023-12-22 20:10:12,133 INFO  L78                 Accepts]: Start accepts. Automaton has 108 states and 158 transitions. Word has length 134
[2023-12-22 20:10:12,133 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 20:10:12,133 INFO  L495      AbstractCegarLoop]: Abstraction has 108 states and 158 transitions.
[2023-12-22 20:10:12,133 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (41), 2 states have call predecessors, (41), 4 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42)
[2023-12-22 20:10:12,134 INFO  L276                IsEmpty]: Start isEmpty. Operand 108 states and 158 transitions.
[2023-12-22 20:10:12,135 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 135
[2023-12-22 20:10:12,135 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 20:10:12,135 INFO  L195           NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 20:10:12,155 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0
[2023-12-22 20:10:12,335 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
[2023-12-22 20:10:12,336 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 20:10:12,336 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 20:10:12,337 INFO  L85        PathProgramCache]: Analyzing trace with hash -165097505, now seen corresponding path program 1 times
[2023-12-22 20:10:12,337 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 20:10:12,337 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1939247955]
[2023-12-22 20:10:12,338 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 20:10:12,338 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
[2023-12-22 20:10:12,338 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 20:10:12,342 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)
[2023-12-22 20:10:12,344 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
[2023-12-22 20:10:12,539 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 20:10:12,552 INFO  L262         TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 20 conjunts are in the unsatisfiable core
[2023-12-22 20:10:12,558 INFO  L285         TraceCheckSpWp]: Computing forward predicates...