/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_100-1loop_file-27.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 21:10:19,423 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 21:10:19,511 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-12-23 21:10:19,517 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 21:10:19,517 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 21:10:19,547 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 21:10:19,547 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 21:10:19,548 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 21:10:19,548 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 21:10:19,552 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 21:10:19,552 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 21:10:19,553 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 21:10:19,554 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 21:10:19,555 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 21:10:19,555 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 21:10:19,556 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 21:10:19,556 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 21:10:19,556 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 21:10:19,556 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 21:10:19,557 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 21:10:19,558 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 21:10:19,558 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 21:10:19,559 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 21:10:19,559 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 21:10:19,559 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 21:10:19,559 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 21:10:19,559 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 21:10:19,560 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 21:10:19,560 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 21:10:19,560 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 21:10:19,561 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 21:10:19,561 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 21:10:19,561 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 21:10:19,562 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 21:10:19,562 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 21:10:19,562 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 21:10:19,562 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 21:10:19,562 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 21:10:19,562 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 21:10:19,563 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 21:10:19,563 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 21:10:19,563 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 21:10:19,563 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 21:10:19,563 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 21:10:19,564 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 21:10:19,564 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 21:10:19,564 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 21:10:19,824 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 21:10:19,845 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 21:10:19,848 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 21:10:19,849 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 21:10:19,849 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 21:10:19,851 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-27.i
[2023-12-23 21:10:21,084 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 21:10:21,304 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 21:10:21,305 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-27.i
[2023-12-23 21:10:21,315 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5fc65d14/02deff142eef4faa83bcdd0a45c1ae25/FLAG38112da0b
[2023-12-23 21:10:21,334 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5fc65d14/02deff142eef4faa83bcdd0a45c1ae25
[2023-12-23 21:10:21,336 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 21:10:21,337 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 21:10:21,339 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 21:10:21,340 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 21:10:21,344 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 21:10:21,345 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:10:21" (1/1) ...
[2023-12-23 21:10:21,346 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1feedabd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:10:21, skipping insertion in model container
[2023-12-23 21:10:21,346 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:10:21" (1/1) ...
[2023-12-23 21:10:21,387 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 21:10:21,528 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_100-1loop_file-27.i[916,929]
[2023-12-23 21:10:21,624 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 21:10:21,638 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 21:10:21,649 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_100-1loop_file-27.i[916,929]
[2023-12-23 21:10:21,684 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 21:10:21,704 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 21:10:21,706 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:10:21 WrapperNode
[2023-12-23 21:10:21,706 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 21:10:21,708 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 21:10:21,708 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 21:10:21,708 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 21:10:21,714 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:10:21" (1/1) ...
[2023-12-23 21:10:21,747 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:10:21" (1/1) ...
[2023-12-23 21:10:21,781 INFO  L138                Inliner]: procedures = 27, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 191
[2023-12-23 21:10:21,782 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 21:10:21,782 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 21:10:21,782 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 21:10:21,783 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 21:10:21,798 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:10:21" (1/1) ...
[2023-12-23 21:10:21,799 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:10:21" (1/1) ...
[2023-12-23 21:10:21,803 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:10:21" (1/1) ...
[2023-12-23 21:10:21,824 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2023-12-23 21:10:21,825 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:10:21" (1/1) ...
[2023-12-23 21:10:21,825 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:10:21" (1/1) ...
[2023-12-23 21:10:21,854 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:10:21" (1/1) ...
[2023-12-23 21:10:21,857 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:10:21" (1/1) ...
[2023-12-23 21:10:21,860 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:10:21" (1/1) ...
[2023-12-23 21:10:21,862 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:10:21" (1/1) ...
[2023-12-23 21:10:21,865 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 21:10:21,866 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 21:10:21,866 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 21:10:21,866 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 21:10:21,867 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:10:21" (1/1) ...
[2023-12-23 21:10:21,875 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 21:10:21,887 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 21:10:21,901 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2023-12-23 21:10:21,911 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2023-12-23 21:10:21,926 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 21:10:21,926 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 21:10:21,926 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 21:10:21,926 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 21:10:21,926 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 21:10:21,927 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 21:10:22,000 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 21:10:22,002 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 21:10:24,916 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 21:10:24,966 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 21:10:24,966 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 21:10:24,966 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:10:24 BoogieIcfgContainer
[2023-12-23 21:10:24,967 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 21:10:24,968 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 21:10:24,968 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 21:10:24,971 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 21:10:24,971 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 09:10:21" (1/3) ...
[2023-12-23 21:10:24,972 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af8333c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:10:24, skipping insertion in model container
[2023-12-23 21:10:24,972 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:10:21" (2/3) ...
[2023-12-23 21:10:24,972 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af8333c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:10:24, skipping insertion in model container
[2023-12-23 21:10:24,972 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:10:24" (3/3) ...
[2023-12-23 21:10:24,973 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-1loop_file-27.i
[2023-12-23 21:10:24,991 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 21:10:24,991 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 21:10:25,035 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 21:10:25,041 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;@67408c36, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 21:10:25,041 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 21:10:25,047 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 80 states, 50 states have (on average 1.46) internal successors, (73), 51 states have internal predecessors, (73), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27)
[2023-12-23 21:10:25,063 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 174
[2023-12-23 21:10:25,063 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 21:10:25,064 INFO  L195           NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 21:10:25,065 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 21:10:25,069 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 21:10:25,069 INFO  L85        PathProgramCache]: Analyzing trace with hash 984431059, now seen corresponding path program 1 times
[2023-12-23 21:10:25,081 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 21:10:25,081 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1333176161]
[2023-12-23 21:10:25,082 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 21:10:25,082 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 21:10:25,082 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 21:10:25,085 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 21:10:25,088 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2023-12-23 21:10:25,527 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 21:10:25,544 INFO  L262         TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 21:10:25,554 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 21:10:25,598 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 328 proven. 0 refuted. 0 times theorem prover too weak. 1076 trivial. 0 not checked.
[2023-12-23 21:10:25,598 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 21:10:25,599 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 21:10:25,599 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1333176161]
[2023-12-23 21:10:25,600 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1333176161] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 21:10:25,600 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 21:10:25,600 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 21:10:25,603 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546979836]
[2023-12-23 21:10:25,604 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 21:10:25,608 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 21:10:25,608 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 21:10:25,637 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 21:10:25,638 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 21:10:25,640 INFO  L87              Difference]: Start difference. First operand  has 80 states, 50 states have (on average 1.46) internal successors, (73), 51 states have internal predecessors, (73), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand  has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27)
[2023-12-23 21:10:27,487 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 21:10:27,529 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 21:10:27,530 INFO  L93              Difference]: Finished difference Result 159 states and 280 transitions.
[2023-12-23 21:10:27,531 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 21:10:27,532 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 173
[2023-12-23 21:10:27,532 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 21:10:27,538 INFO  L225             Difference]: With dead ends: 159
[2023-12-23 21:10:27,538 INFO  L226             Difference]: Without dead ends: 78
[2023-12-23 21:10:27,541 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 21:10:27,544 INFO  L413           NwaCegarLoop]: 118 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time
[2023-12-23 21:10:27,545 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time]
[2023-12-23 21:10:27,556 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 78 states.
[2023-12-23 21:10:27,579 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78.
[2023-12-23 21:10:27,581 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 78 states, 49 states have (on average 1.3673469387755102) internal successors, (67), 49 states have internal predecessors, (67), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27)
[2023-12-23 21:10:27,582 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 121 transitions.
[2023-12-23 21:10:27,583 INFO  L78                 Accepts]: Start accepts. Automaton has 78 states and 121 transitions. Word has length 173
[2023-12-23 21:10:27,584 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 21:10:27,584 INFO  L495      AbstractCegarLoop]: Abstraction has 78 states and 121 transitions.
[2023-12-23 21:10:27,584 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27)
[2023-12-23 21:10:27,584 INFO  L276                IsEmpty]: Start isEmpty. Operand 78 states and 121 transitions.
[2023-12-23 21:10:27,591 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 175
[2023-12-23 21:10:27,591 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 21:10:27,591 INFO  L195           NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 21:10:27,604 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
[2023-12-23 21:10:27,796 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 21:10:27,797 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 21:10:27,798 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 21:10:27,798 INFO  L85        PathProgramCache]: Analyzing trace with hash -724324308, now seen corresponding path program 1 times
[2023-12-23 21:10:27,799 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 21:10:27,799 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1718782657]
[2023-12-23 21:10:27,799 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 21:10:27,799 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 21:10:27,800 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 21:10:27,801 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 21:10:27,803 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2023-12-23 21:10:28,158 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 21:10:28,174 INFO  L262         TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 11 conjunts are in the unsatisfiable core
[2023-12-23 21:10:28,194 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 21:10:31,146 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 84 proven. 216 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked.
[2023-12-23 21:10:31,146 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 21:10:32,922 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 21:10:32,923 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1718782657]
[2023-12-23 21:10:32,923 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1718782657] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 21:10:32,923 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [723197417]
[2023-12-23 21:10:32,923 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 21:10:32,923 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-23 21:10:32,924 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-23 21:10:32,957 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2023-12-23 21:10:32,958 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process
[2023-12-23 21:10:33,354 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 21:10:33,378 INFO  L262         TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 21:10:33,382 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 21:10:33,516 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked.
[2023-12-23 21:10:33,517 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 21:10:33,517 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [723197417] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 21:10:33,517 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-23 21:10:33,517 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13
[2023-12-23 21:10:33,518 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551953529]
[2023-12-23 21:10:33,518 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 21:10:33,519 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 21:10:33,519 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 21:10:33,520 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 21:10:33,520 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240
[2023-12-23 21:10:33,521 INFO  L87              Difference]: Start difference. First operand 78 states and 121 transitions. Second operand  has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27)
[2023-12-23 21:10:35,509 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 21:10:35,654 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 21:10:35,655 INFO  L93              Difference]: Finished difference Result 228 states and 353 transitions.
[2023-12-23 21:10:35,655 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 21:10:35,656 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174
[2023-12-23 21:10:35,657 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 21:10:35,659 INFO  L225             Difference]: With dead ends: 228
[2023-12-23 21:10:35,659 INFO  L226             Difference]: Without dead ends: 151
[2023-12-23 21:10:35,660 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 503 GetRequests, 489 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240
[2023-12-23 21:10:35,661 INFO  L413           NwaCegarLoop]: 125 mSDtfsCounter, 104 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time
[2023-12-23 21:10:35,661 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 227 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time]
[2023-12-23 21:10:35,662 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 151 states.
[2023-12-23 21:10:35,675 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 89.
[2023-12-23 21:10:35,676 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 89 states, 60 states have (on average 1.35) internal successors, (81), 60 states have internal predecessors, (81), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27)
[2023-12-23 21:10:35,676 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 135 transitions.
[2023-12-23 21:10:35,677 INFO  L78                 Accepts]: Start accepts. Automaton has 89 states and 135 transitions. Word has length 174
[2023-12-23 21:10:35,678 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 21:10:35,679 INFO  L495      AbstractCegarLoop]: Abstraction has 89 states and 135 transitions.
[2023-12-23 21:10:35,679 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27)
[2023-12-23 21:10:35,679 INFO  L276                IsEmpty]: Start isEmpty. Operand 89 states and 135 transitions.
[2023-12-23 21:10:35,682 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 176
[2023-12-23 21:10:35,682 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 21:10:35,682 INFO  L195           NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 21:10:35,693 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0
[2023-12-23 21:10:35,903 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2023-12-23 21:10:36,092 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 21:10:36,094 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 21:10:36,094 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 21:10:36,094 INFO  L85        PathProgramCache]: Analyzing trace with hash 1085015396, now seen corresponding path program 1 times
[2023-12-23 21:10:36,095 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 21:10:36,095 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [760601776]
[2023-12-23 21:10:36,095 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 21:10:36,096 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 21:10:36,096 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 21:10:36,098 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 21:10:36,102 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2023-12-23 21:10:36,454 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 21:10:36,469 INFO  L262         TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 11 conjunts are in the unsatisfiable core
[2023-12-23 21:10:36,473 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 21:10:38,867 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 84 proven. 216 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked.
[2023-12-23 21:10:38,867 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 21:10:40,461 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 21:10:40,461 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [760601776]
[2023-12-23 21:10:40,461 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [760601776] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 21:10:40,461 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1324957402]
[2023-12-23 21:10:40,461 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 21:10:40,462 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-23 21:10:40,462 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-23 21:10:40,465 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2023-12-23 21:10:40,495 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process
[2023-12-23 21:10:41,751 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 21:10:41,770 INFO  L262         TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 12 conjunts are in the unsatisfiable core
[2023-12-23 21:10:41,774 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 21:10:43,637 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 84 proven. 216 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked.
[2023-12-23 21:10:43,637 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 21:10:44,633 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1324957402] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 21:10:44,633 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 21:10:44,634 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 12
[2023-12-23 21:10:44,634 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336113197]
[2023-12-23 21:10:44,634 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 21:10:44,635 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2023-12-23 21:10:44,635 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 21:10:44,636 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2023-12-23 21:10:44,636 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210
[2023-12-23 21:10:44,636 INFO  L87              Difference]: Start difference. First operand 89 states and 135 transitions. Second operand  has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 11 states have internal predecessors, (52), 4 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27)
[2023-12-23 21:10:48,063 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 21:10:48,339 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 21:10:48,339 INFO  L93              Difference]: Finished difference Result 191 states and 280 transitions.
[2023-12-23 21:10:48,340 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2023-12-23 21:10:48,340 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 11 states have internal predecessors, (52), 4 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) Word has length 175
[2023-12-23 21:10:48,341 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 21:10:48,344 INFO  L225             Difference]: With dead ends: 191
[2023-12-23 21:10:48,344 INFO  L226             Difference]: Without dead ends: 103
[2023-12-23 21:10:48,345 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 670 GetRequests, 651 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420
[2023-12-23 21:10:48,346 INFO  L413           NwaCegarLoop]: 77 mSDtfsCounter, 94 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time
[2023-12-23 21:10:48,347 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 280 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time]
[2023-12-23 21:10:48,348 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 103 states.
[2023-12-23 21:10:48,358 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 101.
[2023-12-23 21:10:48,359 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 101 states, 69 states have (on average 1.289855072463768) internal successors, (89), 69 states have internal predecessors, (89), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27)
[2023-12-23 21:10:48,360 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 143 transitions.
[2023-12-23 21:10:48,360 INFO  L78                 Accepts]: Start accepts. Automaton has 101 states and 143 transitions. Word has length 175
[2023-12-23 21:10:48,361 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 21:10:48,361 INFO  L495      AbstractCegarLoop]: Abstraction has 101 states and 143 transitions.
[2023-12-23 21:10:48,361 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 11 states have internal predecessors, (52), 4 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27)
[2023-12-23 21:10:48,361 INFO  L276                IsEmpty]: Start isEmpty. Operand 101 states and 143 transitions.
[2023-12-23 21:10:48,363 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 176
[2023-12-23 21:10:48,363 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 21:10:48,363 INFO  L195           NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 21:10:48,376 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
[2023-12-23 21:10:48,581 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0
[2023-12-23 21:10:48,772 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=3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2023-12-23 21:10:48,773 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 21:10:48,774 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 21:10:48,774 INFO  L85        PathProgramCache]: Analyzing trace with hash -720422938, now seen corresponding path program 1 times
[2023-12-23 21:10:48,774 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 21:10:48,775 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [934302580]
[2023-12-23 21:10:48,775 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 21:10:48,775 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 21:10:48,775 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 21:10:48,776 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 21:10:48,800 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 (7)] Waiting until timeout for monitored process
[2023-12-23 21:10:49,085 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 21:10:49,100 INFO  L262         TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-23 21:10:49,103 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 21:10:49,673 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 728 proven. 39 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked.
[2023-12-23 21:10:49,674 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 21:10:50,209 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 39 proven. 39 refuted. 0 times theorem prover too weak. 1326 trivial. 0 not checked.
[2023-12-23 21:10:50,209 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 21:10:50,209 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [934302580]
[2023-12-23 21:10:50,210 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [934302580] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 21:10:50,210 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 21:10:50,210 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12
[2023-12-23 21:10:50,210 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444303622]
[2023-12-23 21:10:50,210 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 21:10:50,211 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2023-12-23 21:10:50,211 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 21:10:50,212 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2023-12-23 21:10:50,212 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132
[2023-12-23 21:10:50,212 INFO  L87              Difference]: Start difference. First operand 101 states and 143 transitions. Second operand  has 12 states, 12 states have (on average 6.25) internal successors, (75), 12 states have internal predecessors, (75), 3 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41)
[2023-12-23 21:10:54,912 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 21:10:55,654 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 21:10:55,655 INFO  L93              Difference]: Finished difference Result 271 states and 376 transitions.
[2023-12-23 21:10:55,655 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2023-12-23 21:10:55,656 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 12 states have (on average 6.25) internal successors, (75), 12 states have internal predecessors, (75), 3 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 175
[2023-12-23 21:10:55,656 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 21:10:55,659 INFO  L225             Difference]: With dead ends: 271
[2023-12-23 21:10:55,659 INFO  L226             Difference]: Without dead ends: 171
[2023-12-23 21:10:55,660 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420
[2023-12-23 21:10:55,660 INFO  L413           NwaCegarLoop]: 114 mSDtfsCounter, 242 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time
[2023-12-23 21:10:55,661 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 463 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time]
[2023-12-23 21:10:55,662 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 171 states.
[2023-12-23 21:10:55,676 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 154.
[2023-12-23 21:10:55,677 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 154 states, 104 states have (on average 1.25) internal successors, (130), 105 states have internal predecessors, (130), 40 states have call successors, (40), 9 states have call predecessors, (40), 9 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40)
[2023-12-23 21:10:55,678 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 210 transitions.
[2023-12-23 21:10:55,678 INFO  L78                 Accepts]: Start accepts. Automaton has 154 states and 210 transitions. Word has length 175
[2023-12-23 21:10:55,680 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 21:10:55,680 INFO  L495      AbstractCegarLoop]: Abstraction has 154 states and 210 transitions.
[2023-12-23 21:10:55,681 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 12 states have (on average 6.25) internal successors, (75), 12 states have internal predecessors, (75), 3 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41)
[2023-12-23 21:10:55,681 INFO  L276                IsEmpty]: Start isEmpty. Operand 154 states and 210 transitions.
[2023-12-23 21:10:55,683 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 176
[2023-12-23 21:10:55,683 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 21:10:55,683 INFO  L195           NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 21:10:55,703 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 (7)] Forceful destruction successful, exit code 0
[2023-12-23 21:10:55,899 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 21:10:55,899 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 21:10:55,899 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 21:10:55,900 INFO  L85        PathProgramCache]: Analyzing trace with hash -1113449948, now seen corresponding path program 1 times
[2023-12-23 21:10:55,900 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 21:10:55,900 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [98389697]
[2023-12-23 21:10:55,900 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 21:10:55,901 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 21:10:55,901 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 21:10:55,902 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 21:10:55,904 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 (8)] Waiting until timeout for monitored process
[2023-12-23 21:10:56,283 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 21:10:56,299 INFO  L262         TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 42 conjunts are in the unsatisfiable core
[2023-12-23 21:10:56,304 INFO  L285         TraceCheckSpWp]: Computing forward predicates...