/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-34.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-22 19:48:48,384 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-22 19:48:48,445 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 19:48:48,450 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-22 19:48:48,451 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-22 19:48:48,477 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-22 19:48:48,478 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-22 19:48:48,478 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-22 19:48:48,479 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-22 19:48:48,481 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-22 19:48:48,482 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-22 19:48:48,482 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-22 19:48:48,482 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-22 19:48:48,483 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-22 19:48:48,483 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-22 19:48:48,484 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-22 19:48:48,484 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-22 19:48:48,484 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-22 19:48:48,484 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-22 19:48:48,484 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-22 19:48:48,484 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-22 19:48:48,485 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-22 19:48:48,485 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-22 19:48:48,485 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-22 19:48:48,485 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-22 19:48:48,485 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-22 19:48:48,486 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-22 19:48:48,486 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-22 19:48:48,486 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-22 19:48:48,486 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-22 19:48:48,487 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-22 19:48:48,487 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-22 19:48:48,487 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-22 19:48:48,487 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-22 19:48:48,487 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 19:48:48,487 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-22 19:48:48,488 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-22 19:48:48,488 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-22 19:48:48,488 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-22 19:48:48,488 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-22 19:48:48,488 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-22 19:48:48,488 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-22 19:48:48,488 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-22 19:48:48,488 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-22 19:48:48,489 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-22 19:48:48,489 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-22 19:48:48,489 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-22 19:48:48,666 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-22 19:48:48,680 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-22 19:48:48,682 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-22 19:48:48,683 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-22 19:48:48,683 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-22 19:48:48,684 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_codestructure_dependencies_file-34.i
[2023-12-22 19:48:49,728 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-22 19:48:49,913 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-22 19:48:49,914 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_codestructure_dependencies_file-34.i
[2023-12-22 19:48:49,926 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef63056ea/c8fd23b1c9db40028385838c6d87c3e3/FLAG25af24974
[2023-12-22 19:48:49,937 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef63056ea/c8fd23b1c9db40028385838c6d87c3e3
[2023-12-22 19:48:49,939 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-22 19:48:49,940 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-22 19:48:49,941 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-22 19:48:49,941 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-22 19:48:49,945 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-22 19:48:49,945 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:48:49" (1/1) ...
[2023-12-22 19:48:49,946 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@102cd524 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:48:49, skipping insertion in model container
[2023-12-22 19:48:49,946 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:48:49" (1/1) ...
[2023-12-22 19:48:49,967 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-22 19:48:50,064 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-34.i[919,932]
[2023-12-22 19:48:50,092 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 19:48:50,103 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-22 19:48:50,112 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-34.i[919,932]
[2023-12-22 19:48:50,145 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 19:48:50,157 INFO  L206         MainTranslator]: Completed translation
[2023-12-22 19:48:50,158 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:48:50 WrapperNode
[2023-12-22 19:48:50,158 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-22 19:48:50,159 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-22 19:48:50,159 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-22 19:48:50,159 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-22 19:48:50,164 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:48:50" (1/1) ...
[2023-12-22 19:48:50,171 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:48:50" (1/1) ...
[2023-12-22 19:48:50,189 INFO  L138                Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 117
[2023-12-22 19:48:50,190 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-22 19:48:50,190 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-22 19:48:50,190 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-22 19:48:50,191 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-22 19:48:50,218 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:48:50" (1/1) ...
[2023-12-22 19:48:50,218 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:48:50" (1/1) ...
[2023-12-22 19:48:50,221 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:48:50" (1/1) ...
[2023-12-22 19:48:50,230 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 19:48:50,230 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:48:50" (1/1) ...
[2023-12-22 19:48:50,231 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:48:50" (1/1) ...
[2023-12-22 19:48:50,236 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:48:50" (1/1) ...
[2023-12-22 19:48:50,239 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:48:50" (1/1) ...
[2023-12-22 19:48:50,240 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:48:50" (1/1) ...
[2023-12-22 19:48:50,241 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:48:50" (1/1) ...
[2023-12-22 19:48:50,243 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-22 19:48:50,244 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-22 19:48:50,244 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-22 19:48:50,244 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-22 19:48:50,245 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:48:50" (1/1) ...
[2023-12-22 19:48:50,249 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 19:48:50,256 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-22 19:48:50,266 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 19:48:50,289 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 19:48:50,298 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-22 19:48:50,298 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-22 19:48:50,298 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-22 19:48:50,299 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-22 19:48:50,300 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-22 19:48:50,300 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-22 19:48:50,357 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-22 19:48:50,359 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-22 19:48:50,621 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-22 19:48:50,699 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-22 19:48:50,699 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-22 19:48:50,699 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:48:50 BoogieIcfgContainer
[2023-12-22 19:48:50,699 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-22 19:48:50,701 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-22 19:48:50,701 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-22 19:48:50,703 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-22 19:48:50,703 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 07:48:49" (1/3) ...
[2023-12-22 19:48:50,704 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60c10be2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 07:48:50, skipping insertion in model container
[2023-12-22 19:48:50,704 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:48:50" (2/3) ...
[2023-12-22 19:48:50,704 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60c10be2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 07:48:50, skipping insertion in model container
[2023-12-22 19:48:50,704 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:48:50" (3/3) ...
[2023-12-22 19:48:50,705 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_codestructure_dependencies_file-34.i
[2023-12-22 19:48:50,717 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-22 19:48:50,717 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-22 19:48:50,760 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-22 19:48:50,765 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;@3ccd872d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-22 19:48:50,765 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-22 19:48:50,769 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 44 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 29 states have internal predecessors, (44), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13)
[2023-12-22 19:48:50,783 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 85
[2023-12-22 19:48:50,783 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 19:48:50,784 INFO  L195           NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:48:50,784 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 19:48:50,788 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 19:48:50,788 INFO  L85        PathProgramCache]: Analyzing trace with hash 497803621, now seen corresponding path program 1 times
[2023-12-22 19:48:50,797 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 19:48:50,801 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1781357609]
[2023-12-22 19:48:50,801 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 19:48:50,801 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 19:48:50,801 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 19:48:50,806 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 19:48:50,808 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 19:48:50,928 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 19:48:50,935 INFO  L262         TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-22 19:48:50,942 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 19:48:51,125 INFO  L134       CoverageAnalysis]: Checked inductivity of 312 backedges. 78 proven. 3 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked.
[2023-12-22 19:48:51,125 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-22 19:48:51,360 INFO  L134       CoverageAnalysis]: Checked inductivity of 312 backedges. 33 proven. 3 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked.
[2023-12-22 19:48:51,361 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 19:48:51,361 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1781357609]
[2023-12-22 19:48:51,361 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1781357609] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-22 19:48:51,361 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-22 19:48:51,362 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8
[2023-12-22 19:48:51,363 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889624489]
[2023-12-22 19:48:51,363 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-22 19:48:51,366 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-22 19:48:51,367 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 19:48:51,384 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-22 19:48:51,385 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2023-12-22 19:48:51,387 INFO  L87              Difference]: Start difference. First operand  has 44 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 29 states have internal predecessors, (44), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand  has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15)
[2023-12-22 19:48:51,751 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 19:48:51,751 INFO  L93              Difference]: Finished difference Result 138 states and 246 transitions.
[2023-12-22 19:48:51,752 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2023-12-22 19:48:51,753 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 84
[2023-12-22 19:48:51,754 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 19:48:51,760 INFO  L225             Difference]: With dead ends: 138
[2023-12-22 19:48:51,760 INFO  L226             Difference]: Without dead ends: 95
[2023-12-22 19:48:51,764 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 160 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306
[2023-12-22 19:48:51,768 INFO  L413           NwaCegarLoop]: 68 mSDtfsCounter, 169 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-22 19:48:51,769 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 191 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-22 19:48:51,781 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 95 states.
[2023-12-22 19:48:51,814 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 89.
[2023-12-22 19:48:51,815 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 89 states, 58 states have (on average 1.396551724137931) internal successors, (81), 58 states have internal predecessors, (81), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26)
[2023-12-22 19:48:51,822 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 133 transitions.
[2023-12-22 19:48:51,823 INFO  L78                 Accepts]: Start accepts. Automaton has 89 states and 133 transitions. Word has length 84
[2023-12-22 19:48:51,824 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 19:48:51,824 INFO  L495      AbstractCegarLoop]: Abstraction has 89 states and 133 transitions.
[2023-12-22 19:48:51,825 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15)
[2023-12-22 19:48:51,825 INFO  L276                IsEmpty]: Start isEmpty. Operand 89 states and 133 transitions.
[2023-12-22 19:48:51,828 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 85
[2023-12-22 19:48:51,829 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 19:48:51,829 INFO  L195           NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:48:51,848 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2023-12-22 19:48:52,035 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 19:48:52,037 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 19:48:52,037 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 19:48:52,038 INFO  L85        PathProgramCache]: Analyzing trace with hash 1177861991, now seen corresponding path program 1 times
[2023-12-22 19:48:52,042 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 19:48:52,043 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1887438261]
[2023-12-22 19:48:52,043 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 19:48:52,043 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 19:48:52,043 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 19:48:52,044 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 19:48:52,045 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 19:48:52,135 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 19:48:52,140 INFO  L262         TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-22 19:48:52,144 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 19:48:52,266 INFO  L134       CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked.
[2023-12-22 19:48:52,267 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 19:48:52,267 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 19:48:52,270 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1887438261]
[2023-12-22 19:48:52,271 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1887438261] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 19:48:52,271 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 19:48:52,272 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 19:48:52,272 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281027386]
[2023-12-22 19:48:52,272 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 19:48:52,273 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-22 19:48:52,273 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 19:48:52,274 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-22 19:48:52,274 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-22 19:48:52,274 INFO  L87              Difference]: Start difference. First operand 89 states and 133 transitions. Second operand  has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13)
[2023-12-22 19:48:52,392 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 19:48:52,392 INFO  L93              Difference]: Finished difference Result 195 states and 290 transitions.
[2023-12-22 19:48:52,397 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-22 19:48:52,397 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 84
[2023-12-22 19:48:52,398 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 19:48:52,399 INFO  L225             Difference]: With dead ends: 195
[2023-12-22 19:48:52,399 INFO  L226             Difference]: Without dead ends: 107
[2023-12-22 19:48:52,399 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 81 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 19:48:52,400 INFO  L413           NwaCegarLoop]: 79 mSDtfsCounter, 59 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-22 19:48:52,400 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 196 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-22 19:48:52,401 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 107 states.
[2023-12-22 19:48:52,410 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 91.
[2023-12-22 19:48:52,411 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 91 states, 60 states have (on average 1.35) internal successors, (81), 60 states have internal predecessors, (81), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26)
[2023-12-22 19:48:52,412 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 133 transitions.
[2023-12-22 19:48:52,412 INFO  L78                 Accepts]: Start accepts. Automaton has 91 states and 133 transitions. Word has length 84
[2023-12-22 19:48:52,412 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 19:48:52,412 INFO  L495      AbstractCegarLoop]: Abstraction has 91 states and 133 transitions.
[2023-12-22 19:48:52,413 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13)
[2023-12-22 19:48:52,413 INFO  L276                IsEmpty]: Start isEmpty. Operand 91 states and 133 transitions.
[2023-12-22 19:48:52,414 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 86
[2023-12-22 19:48:52,414 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 19:48:52,414 INFO  L195           NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:48:52,420 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 19:48:52,619 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 19:48:52,620 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 19:48:52,620 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 19:48:52,620 INFO  L85        PathProgramCache]: Analyzing trace with hash 1862246066, now seen corresponding path program 1 times
[2023-12-22 19:48:52,621 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 19:48:52,621 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [436694502]
[2023-12-22 19:48:52,621 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 19:48:52,621 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 19:48:52,621 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 19:48:52,622 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 19:48:52,656 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 19:48:52,712 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 19:48:52,717 INFO  L262         TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-22 19:48:52,720 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 19:48:53,021 INFO  L134       CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked.
[2023-12-22 19:48:53,021 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 19:48:53,021 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 19:48:53,022 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [436694502]
[2023-12-22 19:48:53,022 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [436694502] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 19:48:53,022 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 19:48:53,022 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-22 19:48:53,022 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793324831]
[2023-12-22 19:48:53,022 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 19:48:53,023 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-22 19:48:53,023 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 19:48:53,023 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-22 19:48:53,023 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-22 19:48:53,024 INFO  L87              Difference]: Start difference. First operand 91 states and 133 transitions. Second operand  has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13)
[2023-12-22 19:48:53,299 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 19:48:53,299 INFO  L93              Difference]: Finished difference Result 309 states and 450 transitions.
[2023-12-22 19:48:53,300 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-22 19:48:53,300 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 85
[2023-12-22 19:48:53,300 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 19:48:53,302 INFO  L225             Difference]: With dead ends: 309
[2023-12-22 19:48:53,302 INFO  L226             Difference]: Without dead ends: 219
[2023-12-22 19:48:53,303 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2023-12-22 19:48:53,303 INFO  L413           NwaCegarLoop]: 99 mSDtfsCounter, 55 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-22 19:48:53,303 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 182 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-22 19:48:53,304 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 219 states.
[2023-12-22 19:48:53,320 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 179.
[2023-12-22 19:48:53,320 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 179 states, 118 states have (on average 1.3220338983050848) internal successors, (156), 118 states have internal predecessors, (156), 52 states have call successors, (52), 8 states have call predecessors, (52), 8 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52)
[2023-12-22 19:48:53,321 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 260 transitions.
[2023-12-22 19:48:53,322 INFO  L78                 Accepts]: Start accepts. Automaton has 179 states and 260 transitions. Word has length 85
[2023-12-22 19:48:53,322 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 19:48:53,322 INFO  L495      AbstractCegarLoop]: Abstraction has 179 states and 260 transitions.
[2023-12-22 19:48:53,322 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13)
[2023-12-22 19:48:53,322 INFO  L276                IsEmpty]: Start isEmpty. Operand 179 states and 260 transitions.
[2023-12-22 19:48:53,323 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 87
[2023-12-22 19:48:53,323 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 19:48:53,323 INFO  L195           NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:48:53,330 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
[2023-12-22 19:48:53,529 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 19:48:53,529 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 19:48:53,530 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 19:48:53,531 INFO  L85        PathProgramCache]: Analyzing trace with hash 1655912240, now seen corresponding path program 1 times
[2023-12-22 19:48:53,531 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 19:48:53,531 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [223232647]
[2023-12-22 19:48:53,531 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 19:48:53,531 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 19:48:53,531 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 19:48:53,532 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 19:48:53,542 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 19:48:53,608 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 19:48:53,614 INFO  L262         TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 18 conjunts are in the unsatisfiable core
[2023-12-22 19:48:53,618 INFO  L285         TraceCheckSpWp]: Computing forward predicates...