/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_loopvsstraightlinecode_50-while_file-97.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-24 04:41:03,431 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-24 04:41:03,499 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-12-24 04:41:03,504 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-24 04:41:03,505 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-24 04:41:03,546 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-24 04:41:03,546 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-24 04:41:03,546 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-24 04:41:03,547 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-24 04:41:03,547 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-24 04:41:03,547 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-24 04:41:03,548 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-24 04:41:03,548 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-24 04:41:03,548 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-24 04:41:03,549 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-24 04:41:03,549 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-24 04:41:03,550 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-24 04:41:03,550 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-24 04:41:03,550 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-24 04:41:03,550 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-24 04:41:03,551 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-24 04:41:03,551 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-24 04:41:03,551 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-24 04:41:03,552 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-24 04:41:03,556 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-24 04:41:03,556 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-24 04:41:03,556 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-24 04:41:03,557 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-24 04:41:03,557 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-24 04:41:03,557 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-24 04:41:03,557 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-24 04:41:03,558 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-24 04:41:03,558 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-24 04:41:03,558 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-24 04:41:03,558 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-24 04:41:03,558 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-24 04:41:03,559 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-24 04:41:03,559 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-24 04:41:03,559 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-24 04:41:03,559 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-24 04:41:03,559 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-24 04:41:03,560 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-24 04:41:03,561 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-24 04:41:03,561 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-24 04:41:03,561 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-24 04:41:03,561 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-24 04:41:03,561 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-24 04:41:03,763 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-24 04:41:03,785 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-24 04:41:03,787 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-24 04:41:03,788 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-24 04:41:03,789 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-24 04:41:03,791 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-97.i
[2023-12-24 04:41:04,982 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-24 04:41:05,169 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-24 04:41:05,170 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-97.i
[2023-12-24 04:41:05,176 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eed89ceee/75d13d20144146cba322374599d1775b/FLAG9a6fcc832
[2023-12-24 04:41:05,187 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eed89ceee/75d13d20144146cba322374599d1775b
[2023-12-24 04:41:05,190 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-24 04:41:05,191 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-24 04:41:05,192 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-24 04:41:05,192 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-24 04:41:05,195 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-24 04:41:05,196 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 04:41:05" (1/1) ...
[2023-12-24 04:41:05,197 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31cdf103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:41:05, skipping insertion in model container
[2023-12-24 04:41:05,197 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 04:41:05" (1/1) ...
[2023-12-24 04:41:05,238 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-24 04:41:05,353 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_loopvsstraightlinecode_50-while_file-97.i[915,928]
[2023-12-24 04:41:05,395 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-24 04:41:05,416 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-24 04:41:05,425 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_loopvsstraightlinecode_50-while_file-97.i[915,928]
[2023-12-24 04:41:05,447 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-24 04:41:05,461 INFO  L206         MainTranslator]: Completed translation
[2023-12-24 04:41:05,461 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:41:05 WrapperNode
[2023-12-24 04:41:05,461 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-24 04:41:05,462 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-24 04:41:05,463 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-24 04:41:05,463 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-24 04:41:05,468 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:41:05" (1/1) ...
[2023-12-24 04:41:05,497 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:41:05" (1/1) ...
[2023-12-24 04:41:05,525 INFO  L138                Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 126
[2023-12-24 04:41:05,525 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-24 04:41:05,526 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-24 04:41:05,526 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-24 04:41:05,526 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-24 04:41:05,535 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:41:05" (1/1) ...
[2023-12-24 04:41:05,535 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:41:05" (1/1) ...
[2023-12-24 04:41:05,539 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:41:05" (1/1) ...
[2023-12-24 04:41:05,558 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].
[2023-12-24 04:41:05,559 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:41:05" (1/1) ...
[2023-12-24 04:41:05,559 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:41:05" (1/1) ...
[2023-12-24 04:41:05,568 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:41:05" (1/1) ...
[2023-12-24 04:41:05,572 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:41:05" (1/1) ...
[2023-12-24 04:41:05,574 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:41:05" (1/1) ...
[2023-12-24 04:41:05,575 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:41:05" (1/1) ...
[2023-12-24 04:41:05,578 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-24 04:41:05,579 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-24 04:41:05,579 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-24 04:41:05,579 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-24 04:41:05,580 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:41:05" (1/1) ...
[2023-12-24 04:41:05,598 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-24 04:41:05,610 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-24 04:41:05,624 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)
[2023-12-24 04:41:05,652 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
[2023-12-24 04:41:05,655 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-24 04:41:05,655 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-24 04:41:05,655 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-24 04:41:05,656 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-24 04:41:05,656 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-24 04:41:05,656 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-24 04:41:05,760 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-24 04:41:05,762 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-24 04:41:06,042 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-24 04:41:06,096 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-24 04:41:06,097 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-24 04:41:06,097 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 04:41:06 BoogieIcfgContainer
[2023-12-24 04:41:06,097 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-24 04:41:06,099 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-24 04:41:06,099 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-24 04:41:06,102 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-24 04:41:06,103 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 04:41:05" (1/3) ...
[2023-12-24 04:41:06,103 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15519b2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 04:41:06, skipping insertion in model container
[2023-12-24 04:41:06,103 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:41:05" (2/3) ...
[2023-12-24 04:41:06,104 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15519b2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 04:41:06, skipping insertion in model container
[2023-12-24 04:41:06,104 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 04:41:06" (3/3) ...
[2023-12-24 04:41:06,105 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-while_file-97.i
[2023-12-24 04:41:06,121 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-24 04:41:06,122 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-24 04:41:06,175 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-24 04:41:06,184 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;@5e782ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-24 04:41:06,184 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-24 04:41:06,191 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 52 states, 33 states have (on average 1.4545454545454546) internal successors, (48), 34 states have internal predecessors, (48), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2023-12-24 04:41:06,204 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 104
[2023-12-24 04:41:06,205 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 04:41:06,206 INFO  L195           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 04:41:06,207 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 04:41:06,222 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 04:41:06,223 INFO  L85        PathProgramCache]: Analyzing trace with hash -882595308, now seen corresponding path program 1 times
[2023-12-24 04:41:06,237 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 04:41:06,238 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [239055655]
[2023-12-24 04:41:06,238 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 04:41:06,239 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
[2023-12-24 04:41:06,239 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 04:41:06,242 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)
[2023-12-24 04:41:06,281 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
[2023-12-24 04:41:06,437 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 04:41:06,443 INFO  L262         TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-24 04:41:06,454 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 04:41:06,504 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked.
[2023-12-24 04:41:06,504 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 04:41:06,505 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 04:41:06,505 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [239055655]
[2023-12-24 04:41:06,506 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [239055655] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 04:41:06,506 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 04:41:06,506 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-24 04:41:06,508 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755917387]
[2023-12-24 04:41:06,509 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 04:41:06,517 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-24 04:41:06,517 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 04:41:06,554 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-24 04:41:06,555 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-24 04:41:06,556 INFO  L87              Difference]: Start difference. First operand  has 52 states, 33 states have (on average 1.4545454545454546) internal successors, (48), 34 states have internal predecessors, (48), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16)
[2023-12-24 04:41:06,615 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 04:41:06,615 INFO  L93              Difference]: Finished difference Result 101 states and 174 transitions.
[2023-12-24 04:41:06,618 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-24 04:41:06,619 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 103
[2023-12-24 04:41:06,619 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 04:41:06,627 INFO  L225             Difference]: With dead ends: 101
[2023-12-24 04:41:06,628 INFO  L226             Difference]: Without dead ends: 50
[2023-12-24 04:41:06,631 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-24 04:41:06,637 INFO  L413           NwaCegarLoop]: 72 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-24 04:41:06,640 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-24 04:41:06,654 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 50 states.
[2023-12-24 04:41:06,672 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50.
[2023-12-24 04:41:06,674 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 50 states, 32 states have (on average 1.34375) internal successors, (43), 32 states have internal predecessors, (43), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2023-12-24 04:41:06,679 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 75 transitions.
[2023-12-24 04:41:06,681 INFO  L78                 Accepts]: Start accepts. Automaton has 50 states and 75 transitions. Word has length 103
[2023-12-24 04:41:06,681 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 04:41:06,682 INFO  L495      AbstractCegarLoop]: Abstraction has 50 states and 75 transitions.
[2023-12-24 04:41:06,682 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16)
[2023-12-24 04:41:06,682 INFO  L276                IsEmpty]: Start isEmpty. Operand 50 states and 75 transitions.
[2023-12-24 04:41:06,687 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 104
[2023-12-24 04:41:06,687 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 04:41:06,687 INFO  L195           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 04:41:06,695 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
[2023-12-24 04:41:06,892 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
[2023-12-24 04:41:06,893 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 04:41:06,894 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 04:41:06,894 INFO  L85        PathProgramCache]: Analyzing trace with hash 544711000, now seen corresponding path program 1 times
[2023-12-24 04:41:06,895 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 04:41:06,895 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1702757970]
[2023-12-24 04:41:06,895 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 04:41:06,895 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
[2023-12-24 04:41:06,896 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 04:41:06,897 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)
[2023-12-24 04:41:06,900 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
[2023-12-24 04:41:07,056 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 04:41:07,061 INFO  L262         TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-24 04:41:07,066 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 04:41:07,181 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked.
[2023-12-24 04:41:07,181 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 04:41:07,182 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 04:41:07,186 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1702757970]
[2023-12-24 04:41:07,187 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1702757970] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 04:41:07,187 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 04:41:07,187 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-12-24 04:41:07,187 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979712890]
[2023-12-24 04:41:07,188 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 04:41:07,190 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-24 04:41:07,190 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 04:41:07,191 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-24 04:41:07,191 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2023-12-24 04:41:07,192 INFO  L87              Difference]: Start difference. First operand 50 states and 75 transitions. Second operand  has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-24 04:41:07,490 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 04:41:07,490 INFO  L93              Difference]: Finished difference Result 105 states and 152 transitions.
[2023-12-24 04:41:07,490 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-24 04:41:07,491 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 103
[2023-12-24 04:41:07,491 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 04:41:07,492 INFO  L225             Difference]: With dead ends: 105
[2023-12-24 04:41:07,492 INFO  L226             Difference]: Without dead ends: 56
[2023-12-24 04:41:07,493 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156
[2023-12-24 04:41:07,495 INFO  L413           NwaCegarLoop]: 41 mSDtfsCounter, 80 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-24 04:41:07,495 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 88 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-24 04:41:07,496 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 56 states.
[2023-12-24 04:41:07,515 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 52.
[2023-12-24 04:41:07,516 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 52 states, 33 states have (on average 1.1818181818181819) internal successors, (39), 33 states have internal predecessors, (39), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2023-12-24 04:41:07,519 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions.
[2023-12-24 04:41:07,519 INFO  L78                 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 103
[2023-12-24 04:41:07,522 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 04:41:07,522 INFO  L495      AbstractCegarLoop]: Abstraction has 52 states and 71 transitions.
[2023-12-24 04:41:07,522 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-24 04:41:07,522 INFO  L276                IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions.
[2023-12-24 04:41:07,525 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 104
[2023-12-24 04:41:07,525 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 04:41:07,526 INFO  L195           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 04:41:07,532 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0
[2023-12-24 04:41:07,731 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
[2023-12-24 04:41:07,732 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 04:41:07,732 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 04:41:07,732 INFO  L85        PathProgramCache]: Analyzing trace with hash 151683990, now seen corresponding path program 1 times
[2023-12-24 04:41:07,733 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 04:41:07,733 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [335372059]
[2023-12-24 04:41:07,733 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 04:41:07,733 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
[2023-12-24 04:41:07,733 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 04:41:07,734 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)
[2023-12-24 04:41:07,735 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
[2023-12-24 04:41:07,853 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 04:41:07,857 INFO  L262         TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-24 04:41:07,861 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 04:41:08,053 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2023-12-24 04:41:08,053 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 04:41:08,053 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 04:41:08,055 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [335372059]
[2023-12-24 04:41:08,058 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [335372059] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 04:41:08,059 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 04:41:08,061 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-24 04:41:08,063 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683415710]
[2023-12-24 04:41:08,063 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 04:41:08,064 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-24 04:41:08,064 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 04:41:08,065 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-24 04:41:08,065 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-24 04:41:08,065 INFO  L87              Difference]: Start difference. First operand 52 states and 71 transitions. Second operand  has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-24 04:41:08,246 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 04:41:08,246 INFO  L93              Difference]: Finished difference Result 139 states and 192 transitions.
[2023-12-24 04:41:08,246 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-24 04:41:08,247 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 103
[2023-12-24 04:41:08,247 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 04:41:08,248 INFO  L225             Difference]: With dead ends: 139
[2023-12-24 04:41:08,248 INFO  L226             Difference]: Without dead ends: 88
[2023-12-24 04:41:08,249 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-24 04:41:08,250 INFO  L413           NwaCegarLoop]: 104 mSDtfsCounter, 87 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-24 04:41:08,250 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 216 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-24 04:41:08,251 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 88 states.
[2023-12-24 04:41:08,262 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 52.
[2023-12-24 04:41:08,263 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 52 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 33 states have internal predecessors, (38), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2023-12-24 04:41:08,263 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 70 transitions.
[2023-12-24 04:41:08,264 INFO  L78                 Accepts]: Start accepts. Automaton has 52 states and 70 transitions. Word has length 103
[2023-12-24 04:41:08,264 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 04:41:08,264 INFO  L495      AbstractCegarLoop]: Abstraction has 52 states and 70 transitions.
[2023-12-24 04:41:08,264 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-24 04:41:08,264 INFO  L276                IsEmpty]: Start isEmpty. Operand 52 states and 70 transitions.
[2023-12-24 04:41:08,265 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 105
[2023-12-24 04:41:08,266 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 04:41:08,266 INFO  L195           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 04:41:08,274 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
[2023-12-24 04:41:08,471 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
[2023-12-24 04:41:08,472 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 04:41:08,472 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 04:41:08,473 INFO  L85        PathProgramCache]: Analyzing trace with hash 718816030, now seen corresponding path program 1 times
[2023-12-24 04:41:08,473 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 04:41:08,473 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1306828864]
[2023-12-24 04:41:08,473 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 04:41:08,473 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
[2023-12-24 04:41:08,474 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 04:41:08,475 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)
[2023-12-24 04:41:08,477 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
[2023-12-24 04:41:08,578 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 04:41:08,581 INFO  L262         TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-24 04:41:08,585 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 04:41:09,032 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2023-12-24 04:41:09,032 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 04:41:09,033 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 04:41:09,033 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1306828864]
[2023-12-24 04:41:09,033 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1306828864] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 04:41:09,033 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 04:41:09,033 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-24 04:41:09,033 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484682818]
[2023-12-24 04:41:09,033 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 04:41:09,036 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-24 04:41:09,037 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 04:41:09,039 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-24 04:41:09,040 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-24 04:41:09,040 INFO  L87              Difference]: Start difference. First operand 52 states and 70 transitions. Second operand  has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-24 04:41:09,264 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 04:41:09,265 INFO  L93              Difference]: Finished difference Result 160 states and 214 transitions.
[2023-12-24 04:41:09,265 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-24 04:41:09,265 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 104
[2023-12-24 04:41:09,266 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 04:41:09,267 INFO  L225             Difference]: With dead ends: 160
[2023-12-24 04:41:09,267 INFO  L226             Difference]: Without dead ends: 109
[2023-12-24 04:41:09,267 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2023-12-24 04:41:09,268 INFO  L413           NwaCegarLoop]: 62 mSDtfsCounter, 42 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-24 04:41:09,268 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 204 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-24 04:41:09,269 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 109 states.
[2023-12-24 04:41:09,301 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 101.
[2023-12-24 04:41:09,302 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 101 states, 64 states have (on average 1.140625) internal successors, (73), 64 states have internal predecessors, (73), 32 states have call successors, (32), 4 states have call predecessors, (32), 4 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32)
[2023-12-24 04:41:09,304 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 137 transitions.
[2023-12-24 04:41:09,304 INFO  L78                 Accepts]: Start accepts. Automaton has 101 states and 137 transitions. Word has length 104
[2023-12-24 04:41:09,306 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 04:41:09,306 INFO  L495      AbstractCegarLoop]: Abstraction has 101 states and 137 transitions.
[2023-12-24 04:41:09,306 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-24 04:41:09,306 INFO  L276                IsEmpty]: Start isEmpty. Operand 101 states and 137 transitions.
[2023-12-24 04:41:09,310 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 106
[2023-12-24 04:41:09,311 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 04:41:09,311 INFO  L195           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 04:41:09,319 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 (5)] Forceful destruction successful, exit code 0
[2023-12-24 04:41:09,519 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 04:41:09,519 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 04:41:09,520 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 04:41:09,520 INFO  L85        PathProgramCache]: Analyzing trace with hash 808340375, now seen corresponding path program 1 times
[2023-12-24 04:41:09,520 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 04:41:09,520 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1351757926]
[2023-12-24 04:41:09,520 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 04:41:09,521 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
[2023-12-24 04:41:09,521 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 04:41:09,522 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 04:41:09,523 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2023-12-24 04:41:09,627 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 04:41:09,631 INFO  L262         TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 18 conjunts are in the unsatisfiable core
[2023-12-24 04:41:09,636 INFO  L285         TraceCheckSpWp]: Computing forward predicates...