/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_50-1loop_file-67.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-24 03:16:32,575 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-24 03:16:32,622 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 03:16:32,625 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-24 03:16:32,625 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-24 03:16:32,642 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-24 03:16:32,643 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-24 03:16:32,643 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-24 03:16:32,643 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-24 03:16:32,643 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-24 03:16:32,644 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-24 03:16:32,644 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-24 03:16:32,644 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-24 03:16:32,645 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-24 03:16:32,645 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-24 03:16:32,645 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-24 03:16:32,645 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-24 03:16:32,646 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-24 03:16:32,646 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-24 03:16:32,646 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-24 03:16:32,646 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-24 03:16:32,650 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-24 03:16:32,650 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-24 03:16:32,650 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-24 03:16:32,651 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-24 03:16:32,651 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-24 03:16:32,651 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-24 03:16:32,651 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-24 03:16:32,651 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-24 03:16:32,651 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-24 03:16:32,652 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-24 03:16:32,652 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-24 03:16:32,652 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-24 03:16:32,652 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-24 03:16:32,652 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-24 03:16:32,652 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-24 03:16:32,653 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-24 03:16:32,653 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-24 03:16:32,653 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-24 03:16:32,653 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-24 03:16:32,653 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-24 03:16:32,654 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-24 03:16:32,654 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-24 03:16:32,654 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-24 03:16:32,654 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-24 03:16:32,655 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-24 03:16:32,655 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-24 03:16:32,826 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-24 03:16:32,840 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-24 03:16:32,842 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-24 03:16:32,843 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-24 03:16:32,843 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-24 03:16:32,844 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-67.i
[2023-12-24 03:16:33,934 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-24 03:16:34,110 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-24 03:16:34,110 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-67.i
[2023-12-24 03:16:34,116 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c04e6c689/b21e0880fff04b52b31a6948ad6f1c00/FLAGead2f0d64
[2023-12-24 03:16:34,126 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c04e6c689/b21e0880fff04b52b31a6948ad6f1c00
[2023-12-24 03:16:34,128 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-24 03:16:34,129 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-24 03:16:34,129 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-24 03:16:34,130 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-24 03:16:34,133 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-24 03:16:34,133 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 03:16:34" (1/1) ...
[2023-12-24 03:16:34,134 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32de830b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:16:34, skipping insertion in model container
[2023-12-24 03:16:34,134 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 03:16:34" (1/1) ...
[2023-12-24 03:16:34,158 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-24 03:16:34,249 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_50-1loop_file-67.i[915,928]
[2023-12-24 03:16:34,282 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-24 03:16:34,292 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-24 03:16:34,300 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_50-1loop_file-67.i[915,928]
[2023-12-24 03:16:34,318 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-24 03:16:34,330 INFO  L206         MainTranslator]: Completed translation
[2023-12-24 03:16:34,330 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:16:34 WrapperNode
[2023-12-24 03:16:34,331 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-24 03:16:34,331 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-24 03:16:34,331 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-24 03:16:34,332 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-24 03:16:34,336 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:16:34" (1/1) ...
[2023-12-24 03:16:34,345 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:16:34" (1/1) ...
[2023-12-24 03:16:34,361 INFO  L138                Inliner]: procedures = 27, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 155
[2023-12-24 03:16:34,361 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-24 03:16:34,362 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-24 03:16:34,362 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-24 03:16:34,362 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-24 03:16:34,369 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:16:34" (1/1) ...
[2023-12-24 03:16:34,370 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:16:34" (1/1) ...
[2023-12-24 03:16:34,373 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:16:34" (1/1) ...
[2023-12-24 03:16:34,383 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 03:16:34,383 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:16:34" (1/1) ...
[2023-12-24 03:16:34,384 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:16:34" (1/1) ...
[2023-12-24 03:16:34,390 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:16:34" (1/1) ...
[2023-12-24 03:16:34,393 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:16:34" (1/1) ...
[2023-12-24 03:16:34,395 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:16:34" (1/1) ...
[2023-12-24 03:16:34,396 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:16:34" (1/1) ...
[2023-12-24 03:16:34,399 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-24 03:16:34,399 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-24 03:16:34,399 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-24 03:16:34,400 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-24 03:16:34,400 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:16:34" (1/1) ...
[2023-12-24 03:16:34,404 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-24 03:16:34,414 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-24 03:16:34,437 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 03:16:34,468 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 03:16:34,489 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-24 03:16:34,490 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-24 03:16:34,490 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-24 03:16:34,490 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-24 03:16:34,490 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-24 03:16:34,490 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-24 03:16:34,547 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-24 03:16:34,549 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-24 03:16:35,662 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-24 03:16:35,690 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-24 03:16:35,691 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-24 03:16:35,691 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 03:16:35 BoogieIcfgContainer
[2023-12-24 03:16:35,691 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-24 03:16:35,693 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-24 03:16:35,693 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-24 03:16:35,695 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-24 03:16:35,695 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 03:16:34" (1/3) ...
[2023-12-24 03:16:35,695 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21fcf3cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 03:16:35, skipping insertion in model container
[2023-12-24 03:16:35,695 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:16:34" (2/3) ...
[2023-12-24 03:16:35,696 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21fcf3cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 03:16:35, skipping insertion in model container
[2023-12-24 03:16:35,696 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 03:16:35" (3/3) ...
[2023-12-24 03:16:35,697 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-1loop_file-67.i
[2023-12-24 03:16:35,708 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-24 03:16:35,708 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-24 03:16:35,737 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-24 03:16:35,741 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;@33b9aa1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-24 03:16:35,741 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-24 03:16:35,744 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 61 states, 36 states have (on average 1.4444444444444444) internal successors, (52), 37 states have internal predecessors, (52), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22)
[2023-12-24 03:16:35,753 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 135
[2023-12-24 03:16:35,753 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 03:16:35,754 INFO  L195           NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 03:16:35,754 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 03:16:35,758 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 03:16:35,758 INFO  L85        PathProgramCache]: Analyzing trace with hash 285109626, now seen corresponding path program 1 times
[2023-12-24 03:16:35,797 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 03:16:35,797 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1557297621]
[2023-12-24 03:16:35,797 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 03:16:35,798 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 03:16:35,798 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 03:16:35,814 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 03:16:35,842 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 03:16:36,057 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 03:16:36,072 INFO  L262         TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-24 03:16:36,079 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 03:16:36,163 INFO  L134       CoverageAnalysis]: Checked inductivity of 924 backedges. 482 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked.
[2023-12-24 03:16:36,163 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 03:16:36,164 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 03:16:36,164 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1557297621]
[2023-12-24 03:16:36,164 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1557297621] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 03:16:36,165 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 03:16:36,165 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-24 03:16:36,169 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083177640]
[2023-12-24 03:16:36,170 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 03:16:36,191 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-24 03:16:36,192 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 03:16:36,230 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-24 03:16:36,231 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-24 03:16:36,233 INFO  L87              Difference]: Start difference. First operand  has 61 states, 36 states have (on average 1.4444444444444444) internal successors, (52), 37 states have internal predecessors, (52), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand  has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22)
[2023-12-24 03:16:36,887 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 03:16:36,887 INFO  L93              Difference]: Finished difference Result 121 states and 213 transitions.
[2023-12-24 03:16:36,888 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-24 03:16:36,889 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 134
[2023-12-24 03:16:36,890 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 03:16:36,894 INFO  L225             Difference]: With dead ends: 121
[2023-12-24 03:16:36,894 INFO  L226             Difference]: Without dead ends: 59
[2023-12-24 03:16:36,897 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 133 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 03:16:36,899 INFO  L413           NwaCegarLoop]: 88 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2023-12-24 03:16:36,899 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 88 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2023-12-24 03:16:36,909 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 59 states.
[2023-12-24 03:16:36,925 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59.
[2023-12-24 03:16:36,926 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 59 states, 35 states have (on average 1.3428571428571427) internal successors, (47), 35 states have internal predecessors, (47), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22)
[2023-12-24 03:16:36,927 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 91 transitions.
[2023-12-24 03:16:36,928 INFO  L78                 Accepts]: Start accepts. Automaton has 59 states and 91 transitions. Word has length 134
[2023-12-24 03:16:36,928 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 03:16:36,928 INFO  L495      AbstractCegarLoop]: Abstraction has 59 states and 91 transitions.
[2023-12-24 03:16:36,928 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22)
[2023-12-24 03:16:36,928 INFO  L276                IsEmpty]: Start isEmpty. Operand 59 states and 91 transitions.
[2023-12-24 03:16:36,931 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 135
[2023-12-24 03:16:36,932 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 03:16:36,932 INFO  L195           NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 03:16:36,943 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2023-12-24 03:16:37,141 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 03:16:37,141 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 03:16:37,142 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 03:16:37,142 INFO  L85        PathProgramCache]: Analyzing trace with hash -390637902, now seen corresponding path program 1 times
[2023-12-24 03:16:37,143 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 03:16:37,143 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1812120914]
[2023-12-24 03:16:37,143 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 03:16:37,143 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 03:16:37,143 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 03:16:37,144 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 03:16:37,157 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 03:16:37,349 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 03:16:37,362 INFO  L262         TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-24 03:16:37,367 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 03:16:37,788 INFO  L134       CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked.
[2023-12-24 03:16:37,789 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 03:16:37,789 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 03:16:37,789 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1812120914]
[2023-12-24 03:16:37,789 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1812120914] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 03:16:37,789 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 03:16:37,789 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-24 03:16:37,790 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523060445]
[2023-12-24 03:16:37,790 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 03:16:37,791 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-24 03:16:37,791 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 03:16:37,791 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-24 03:16:37,791 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-24 03:16:37,791 INFO  L87              Difference]: Start difference. First operand 59 states and 91 transitions. Second operand  has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22)
[2023-12-24 03:16:39,901 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 03:16:39,901 INFO  L93              Difference]: Finished difference Result 176 states and 272 transitions.
[2023-12-24 03:16:39,902 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-24 03:16:39,902 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 134
[2023-12-24 03:16:39,903 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 03:16:39,904 INFO  L225             Difference]: With dead ends: 176
[2023-12-24 03:16:39,904 INFO  L226             Difference]: Without dead ends: 118
[2023-12-24 03:16:39,905 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-24 03:16:39,906 INFO  L413           NwaCegarLoop]: 84 mSDtfsCounter, 55 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time
[2023-12-24 03:16:39,906 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 250 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time]
[2023-12-24 03:16:39,907 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 118 states.
[2023-12-24 03:16:39,930 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 105.
[2023-12-24 03:16:39,930 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 105 states, 58 states have (on average 1.2586206896551724) internal successors, (73), 58 states have internal predecessors, (73), 44 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44)
[2023-12-24 03:16:39,931 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 161 transitions.
[2023-12-24 03:16:39,932 INFO  L78                 Accepts]: Start accepts. Automaton has 105 states and 161 transitions. Word has length 134
[2023-12-24 03:16:39,932 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 03:16:39,932 INFO  L495      AbstractCegarLoop]: Abstraction has 105 states and 161 transitions.
[2023-12-24 03:16:39,932 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22)
[2023-12-24 03:16:39,932 INFO  L276                IsEmpty]: Start isEmpty. Operand 105 states and 161 transitions.
[2023-12-24 03:16:39,934 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 137
[2023-12-24 03:16:39,934 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 03:16:39,934 INFO  L195           NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 03:16:39,948 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
[2023-12-24 03:16:40,148 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 03:16:40,149 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 03:16:40,150 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 03:16:40,150 INFO  L85        PathProgramCache]: Analyzing trace with hash -1465052096, now seen corresponding path program 1 times
[2023-12-24 03:16:40,150 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 03:16:40,150 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1105388672]
[2023-12-24 03:16:40,150 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 03:16:40,151 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 03:16:40,151 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 03:16:40,152 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 03:16:40,153 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 03:16:40,374 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 03:16:40,386 INFO  L262         TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-24 03:16:40,390 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 03:16:40,625 INFO  L134       CoverageAnalysis]: Checked inductivity of 924 backedges. 177 proven. 57 refuted. 0 times theorem prover too weak. 690 trivial. 0 not checked.
[2023-12-24 03:16:40,625 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 03:16:40,835 INFO  L134       CoverageAnalysis]: Checked inductivity of 924 backedges. 6 proven. 57 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked.
[2023-12-24 03:16:40,836 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 03:16:40,839 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1105388672]
[2023-12-24 03:16:40,840 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1105388672] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-24 03:16:40,842 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-24 03:16:40,845 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2023-12-24 03:16:40,846 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246062974]
[2023-12-24 03:16:40,846 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-24 03:16:40,848 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-24 03:16:40,848 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 03:16:40,849 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-24 03:16:40,849 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-24 03:16:40,849 INFO  L87              Difference]: Start difference. First operand 105 states and 161 transitions. Second operand  has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 2 states have call successors, (41), 2 states have call predecessors, (41), 4 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42)
[2023-12-24 03:16:41,851 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 03:16:41,851 INFO  L93              Difference]: Finished difference Result 173 states and 257 transitions.
[2023-12-24 03:16:41,852 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2023-12-24 03:16:41,852 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 2 states have call successors, (41), 2 states have call predecessors, (41), 4 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 136
[2023-12-24 03:16:41,853 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 03:16:41,853 INFO  L225             Difference]: With dead ends: 173
[2023-12-24 03:16:41,853 INFO  L226             Difference]: Without dead ends: 115
[2023-12-24 03:16:41,854 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 264 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110
[2023-12-24 03:16:41,855 INFO  L413           NwaCegarLoop]: 57 mSDtfsCounter, 30 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2023-12-24 03:16:41,855 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 124 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2023-12-24 03:16:41,856 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 115 states.
[2023-12-24 03:16:41,868 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 111.
[2023-12-24 03:16:41,869 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 111 states, 62 states have (on average 1.1774193548387097) internal successors, (73), 62 states have internal predecessors, (73), 44 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44)
[2023-12-24 03:16:41,870 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 161 transitions.
[2023-12-24 03:16:41,870 INFO  L78                 Accepts]: Start accepts. Automaton has 111 states and 161 transitions. Word has length 136
[2023-12-24 03:16:41,870 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 03:16:41,870 INFO  L495      AbstractCegarLoop]: Abstraction has 111 states and 161 transitions.
[2023-12-24 03:16:41,871 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 2 states have call successors, (41), 2 states have call predecessors, (41), 4 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42)
[2023-12-24 03:16:41,871 INFO  L276                IsEmpty]: Start isEmpty. Operand 111 states and 161 transitions.
[2023-12-24 03:16:41,872 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 137
[2023-12-24 03:16:41,872 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 03:16:41,872 INFO  L195           NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 03:16:41,885 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 03:16:42,081 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 03:16:42,082 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 03:16:42,082 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 03:16:42,082 INFO  L85        PathProgramCache]: Analyzing trace with hash -2005479864, now seen corresponding path program 1 times
[2023-12-24 03:16:42,083 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 03:16:42,083 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2002098689]
[2023-12-24 03:16:42,083 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 03:16:42,083 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 03:16:42,083 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 03:16:42,088 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 03:16:42,091 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 03:16:42,342 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 03:16:42,356 INFO  L262         TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 25 conjunts are in the unsatisfiable core
[2023-12-24 03:16:42,363 INFO  L285         TraceCheckSpWp]: Computing forward predicates...