/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_fillercode_fillercodestructure_normal_file-70.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 17:46:31,129 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 17:46:31,194 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 17:46:31,197 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 17:46:31,198 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 17:46:31,219 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 17:46:31,220 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 17:46:31,220 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 17:46:31,221 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 17:46:31,223 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 17:46:31,224 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 17:46:31,224 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 17:46:31,224 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 17:46:31,225 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 17:46:31,225 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 17:46:31,226 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 17:46:31,226 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 17:46:31,226 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 17:46:31,226 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 17:46:31,226 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 17:46:31,227 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 17:46:31,227 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 17:46:31,227 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 17:46:31,227 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 17:46:31,227 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 17:46:31,227 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 17:46:31,228 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 17:46:31,228 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 17:46:31,228 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 17:46:31,228 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 17:46:31,229 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 17:46:31,229 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 17:46:31,229 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 17:46:31,229 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 17:46:31,229 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 17:46:31,229 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 17:46:31,230 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 17:46:31,230 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 17:46:31,230 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 17:46:31,230 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 17:46:31,230 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 17:46:31,230 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 17:46:31,230 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 17:46:31,230 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 17:46:31,231 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 17:46:31,231 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 17:46:31,231 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 17:46:31,413 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 17:46:31,429 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 17:46:31,431 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 17:46:31,432 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 17:46:31,432 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 17:46:31,433 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-70.i
[2023-12-23 17:46:32,404 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 17:46:32,569 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 17:46:32,570 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-70.i
[2023-12-23 17:46:32,577 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/765430383/084e3a88e41b40f29e2f14029babedf7/FLAG00c46bf5a
[2023-12-23 17:46:32,590 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/765430383/084e3a88e41b40f29e2f14029babedf7
[2023-12-23 17:46:32,592 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 17:46:32,593 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 17:46:32,594 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 17:46:32,594 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 17:46:32,597 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 17:46:32,598 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 05:46:32" (1/1) ...
[2023-12-23 17:46:32,598 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@117bc782 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:46:32, skipping insertion in model container
[2023-12-23 17:46:32,599 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 05:46:32" (1/1) ...
[2023-12-23 17:46:32,629 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 17:46:32,740 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_fillercode_fillercodestructure_normal_file-70.i[913,926]
[2023-12-23 17:46:32,772 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 17:46:32,781 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 17:46:32,789 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_fillercode_fillercodestructure_normal_file-70.i[913,926]
[2023-12-23 17:46:32,804 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 17:46:32,814 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 17:46:32,815 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:46:32 WrapperNode
[2023-12-23 17:46:32,815 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 17:46:32,816 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 17:46:32,816 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 17:46:32,816 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 17:46:32,820 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:46:32" (1/1) ...
[2023-12-23 17:46:32,830 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:46:32" (1/1) ...
[2023-12-23 17:46:32,851 INFO  L138                Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 116
[2023-12-23 17:46:32,851 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 17:46:32,852 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 17:46:32,852 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 17:46:32,852 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 17:46:32,863 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:46:32" (1/1) ...
[2023-12-23 17:46:32,863 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:46:32" (1/1) ...
[2023-12-23 17:46:32,867 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:46:32" (1/1) ...
[2023-12-23 17:46:32,874 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 17:46:32,875 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:46:32" (1/1) ...
[2023-12-23 17:46:32,875 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:46:32" (1/1) ...
[2023-12-23 17:46:32,881 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:46:32" (1/1) ...
[2023-12-23 17:46:32,882 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:46:32" (1/1) ...
[2023-12-23 17:46:32,884 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:46:32" (1/1) ...
[2023-12-23 17:46:32,885 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:46:32" (1/1) ...
[2023-12-23 17:46:32,887 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 17:46:32,888 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 17:46:32,888 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 17:46:32,888 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 17:46:32,888 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:46:32" (1/1) ...
[2023-12-23 17:46:32,892 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 17:46:32,901 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 17:46:32,921 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 17:46:32,922 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 17:46:32,940 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 17:46:32,940 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 17:46:32,940 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 17:46:32,941 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 17:46:32,942 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 17:46:32,942 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 17:46:32,994 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 17:46:32,995 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 17:46:37,234 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 17:46:37,278 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 17:46:37,278 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 17:46:37,278 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 05:46:37 BoogieIcfgContainer
[2023-12-23 17:46:37,279 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 17:46:37,285 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 17:46:37,285 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 17:46:37,288 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 17:46:37,288 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 05:46:32" (1/3) ...
[2023-12-23 17:46:37,288 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5673cd12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 05:46:37, skipping insertion in model container
[2023-12-23 17:46:37,289 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:46:32" (2/3) ...
[2023-12-23 17:46:37,289 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5673cd12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 05:46:37, skipping insertion in model container
[2023-12-23 17:46:37,289 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 05:46:37" (3/3) ...
[2023-12-23 17:46:37,290 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_normal_file-70.i
[2023-12-23 17:46:37,301 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 17:46:37,302 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 17:46:37,336 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 17:46:37,340 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;@5bb92ea9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 17:46:37,341 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 17:46:37,343 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 43 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 28 states have internal predecessors, (40), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13)
[2023-12-23 17:46:37,350 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 86
[2023-12-23 17:46:37,350 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 17:46:37,350 INFO  L195           NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 17:46:37,350 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 17:46:37,353 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 17:46:37,353 INFO  L85        PathProgramCache]: Analyzing trace with hash 1166433086, now seen corresponding path program 1 times
[2023-12-23 17:46:37,361 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 17:46:37,362 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2082629691]
[2023-12-23 17:46:37,362 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 17:46:37,362 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 17:46:37,362 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 17:46:37,368 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 17:46:37,376 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 17:46:37,675 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 17:46:37,690 INFO  L262         TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 17:46:37,696 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 17:46:37,730 INFO  L134       CoverageAnalysis]: Checked inductivity of 312 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked.
[2023-12-23 17:46:37,730 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 17:46:37,731 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 17:46:37,731 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2082629691]
[2023-12-23 17:46:37,731 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2082629691] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 17:46:37,731 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 17:46:37,732 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 17:46:37,733 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783665128]
[2023-12-23 17:46:37,733 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 17:46:37,736 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 17:46:37,736 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 17:46:37,759 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 17:46:37,760 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 17:46:37,762 INFO  L87              Difference]: Start difference. First operand  has 43 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 28 states have internal predecessors, (40), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand  has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13)
[2023-12-23 17:46:39,884 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 17:46:39,885 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 17:46:39,885 INFO  L93              Difference]: Finished difference Result 83 states and 143 transitions.
[2023-12-23 17:46:39,914 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 17:46:39,915 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 85
[2023-12-23 17:46:39,916 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 17:46:39,920 INFO  L225             Difference]: With dead ends: 83
[2023-12-23 17:46:39,921 INFO  L226             Difference]: Without dead ends: 41
[2023-12-23 17:46:39,922 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 84 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 17:46:39,926 INFO  L413           NwaCegarLoop]: 57 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time
[2023-12-23 17:46:39,926 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time]
[2023-12-23 17:46:39,936 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 41 states.
[2023-12-23 17:46:39,954 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41.
[2023-12-23 17:46:39,956 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 41 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13)
[2023-12-23 17:46:39,959 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 60 transitions.
[2023-12-23 17:46:39,960 INFO  L78                 Accepts]: Start accepts. Automaton has 41 states and 60 transitions. Word has length 85
[2023-12-23 17:46:39,960 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 17:46:39,960 INFO  L495      AbstractCegarLoop]: Abstraction has 41 states and 60 transitions.
[2023-12-23 17:46:39,960 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13)
[2023-12-23 17:46:39,961 INFO  L276                IsEmpty]: Start isEmpty. Operand 41 states and 60 transitions.
[2023-12-23 17:46:39,965 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 86
[2023-12-23 17:46:39,965 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 17:46:39,965 INFO  L195           NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 17:46:39,974 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 17:46:40,168 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 17:46:40,169 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 17:46:40,169 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 17:46:40,169 INFO  L85        PathProgramCache]: Analyzing trace with hash 44057220, now seen corresponding path program 1 times
[2023-12-23 17:46:40,170 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 17:46:40,170 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [300820552]
[2023-12-23 17:46:40,170 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 17:46:40,185 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 17:46:40,186 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 17:46:40,187 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 17:46:40,188 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 17:46:40,451 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 17:46:40,463 INFO  L262         TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-12-23 17:46:40,467 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 17:46:41,630 INFO  L134       CoverageAnalysis]: Checked inductivity of 312 backedges. 78 proven. 3 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked.
[2023-12-23 17:46:41,631 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 17:46:44,731 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 17:46:44,731 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [300820552]
[2023-12-23 17:46:44,731 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [300820552] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 17:46:44,731 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [916640331]
[2023-12-23 17:46:44,732 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 17:46:44,732 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-23 17:46:44,732 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-23 17:46:44,736 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 17:46:44,758 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 17:46:45,314 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 17:46:45,324 INFO  L262         TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 11 conjunts are in the unsatisfiable core
[2023-12-23 17:46:45,327 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 17:46:46,220 INFO  L134       CoverageAnalysis]: Checked inductivity of 312 backedges. 78 proven. 3 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked.
[2023-12-23 17:46:46,221 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 17:46:46,311 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [916640331] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 17:46:46,311 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 17:46:46,311 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8
[2023-12-23 17:46:46,312 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225161705]
[2023-12-23 17:46:46,312 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 17:46:46,313 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-12-23 17:46:46,313 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 17:46:46,314 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-12-23 17:46:46,314 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156
[2023-12-23 17:46:46,314 INFO  L87              Difference]: Start difference. First operand 41 states and 60 transitions. Second operand  has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 8 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13)
[2023-12-23 17:46:48,686 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 17:46:50,678 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 17:46:52,656 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 17:46:53,174 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 17:46:53,175 INFO  L93              Difference]: Finished difference Result 168 states and 243 transitions.
[2023-12-23 17:46:53,175 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2023-12-23 17:46:53,176 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 8 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 85
[2023-12-23 17:46:53,176 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 17:46:53,177 INFO  L225             Difference]: With dead ends: 168
[2023-12-23 17:46:53,177 INFO  L226             Difference]: Without dead ends: 128
[2023-12-23 17:46:53,180 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=133, Invalid=373, Unknown=0, NotChecked=0, Total=506
[2023-12-23 17:46:53,181 INFO  L413           NwaCegarLoop]: 76 mSDtfsCounter, 137 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time
[2023-12-23 17:46:53,181 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 254 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time]
[2023-12-23 17:46:53,182 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 128 states.
[2023-12-23 17:46:53,195 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 85.
[2023-12-23 17:46:53,196 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 85 states, 55 states have (on average 1.290909090909091) internal successors, (71), 55 states have internal predecessors, (71), 26 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26)
[2023-12-23 17:46:53,197 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 123 transitions.
[2023-12-23 17:46:53,197 INFO  L78                 Accepts]: Start accepts. Automaton has 85 states and 123 transitions. Word has length 85
[2023-12-23 17:46:53,197 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 17:46:53,197 INFO  L495      AbstractCegarLoop]: Abstraction has 85 states and 123 transitions.
[2023-12-23 17:46:53,198 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 8 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13)
[2023-12-23 17:46:53,198 INFO  L276                IsEmpty]: Start isEmpty. Operand 85 states and 123 transitions.
[2023-12-23 17:46:53,199 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 86
[2023-12-23 17:46:53,199 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 17:46:53,199 INFO  L195           NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 17:46:53,205 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 17:46:53,416 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0
[2023-12-23 17:46:53,604 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 17:46:53,605 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 17:46:53,605 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 17:46:53,605 INFO  L85        PathProgramCache]: Analyzing trace with hash 101315522, now seen corresponding path program 1 times
[2023-12-23 17:46:53,606 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 17:46:53,606 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [579378902]
[2023-12-23 17:46:53,606 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 17:46:53,606 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 17:46:53,606 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 17:46:53,607 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 17:46:53,628 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 17:46:53,903 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 17:46:53,917 INFO  L262         TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 26 conjunts are in the unsatisfiable core
[2023-12-23 17:46:53,921 INFO  L285         TraceCheckSpWp]: Computing forward predicates...