/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.trace.refinement.strategy FOX -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-76.i


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


This is Ultimate 0.2.5-dev-17387ad-m
[2024-11-06 07:47:02,070 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-06 07:47:02,141 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-06 07:47:02,146 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-06 07:47:02,147 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-06 07:47:02,172 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-06 07:47:02,173 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-06 07:47:02,173 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-06 07:47:02,174 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-06 07:47:02,174 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-06 07:47:02,175 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-06 07:47:02,175 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-06 07:47:02,175 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-06 07:47:02,176 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-06 07:47:02,176 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-06 07:47:02,177 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-06 07:47:02,179 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-06 07:47:02,179 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-06 07:47:02,179 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-06 07:47:02,179 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-06 07:47:02,180 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-06 07:47:02,183 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-06 07:47:02,184 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-06 07:47:02,184 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-06 07:47:02,184 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-06 07:47:02,184 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-06 07:47:02,185 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-06 07:47:02,185 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-06 07:47:02,185 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-06 07:47:02,185 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-06 07:47:02,186 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-06 07:47:02,186 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-06 07:47:02,186 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-06 07:47:02,187 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-06 07:47:02,187 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 07:47:02,187 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-06 07:47:02,187 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-06 07:47:02,188 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-06 07:47:02,188 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-06 07:47:02,188 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-06 07:47:02,188 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-06 07:47:02,189 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-06 07:47:02,190 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-06 07:47:02,190 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-06 07:47:02,190 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX
[2024-11-06 07:47:02,414 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-06 07:47:02,443 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-06 07:47:02,449 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-06 07:47:02,450 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-06 07:47:02,451 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-06 07:47:02,453 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-76.i
[2024-11-06 07:47:03,921 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-06 07:47:04,121 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-06 07:47:04,122 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-76.i
[2024-11-06 07:47:04,135 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51308e85c/4d280b211e3045efb8f70f72df2060bf/FLAG18ee3d8a7
[2024-11-06 07:47:04,153 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51308e85c/4d280b211e3045efb8f70f72df2060bf
[2024-11-06 07:47:04,156 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-06 07:47:04,157 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-06 07:47:04,158 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-06 07:47:04,159 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-06 07:47:04,163 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-06 07:47:04,164 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:47:04" (1/1) ...
[2024-11-06 07:47:04,165 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ef7725 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:47:04, skipping insertion in model container
[2024-11-06 07:47:04,165 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:47:04" (1/1) ...
[2024-11-06 07:47:04,193 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-06 07:47:04,357 WARN  L250   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_floatingpointinfluence_has-floats_file-76.i[917,930]
[2024-11-06 07:47:04,391 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 07:47:04,404 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-06 07:47:04,417 WARN  L250   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_floatingpointinfluence_has-floats_file-76.i[917,930]
[2024-11-06 07:47:04,436 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 07:47:04,456 INFO  L204         MainTranslator]: Completed translation
[2024-11-06 07:47:04,457 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:47:04 WrapperNode
[2024-11-06 07:47:04,457 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-06 07:47:04,458 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-06 07:47:04,458 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-06 07:47:04,458 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-06 07:47:04,463 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:47:04" (1/1) ...
[2024-11-06 07:47:04,471 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:47:04" (1/1) ...
[2024-11-06 07:47:04,498 INFO  L138                Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 106
[2024-11-06 07:47:04,498 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-06 07:47:04,499 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-06 07:47:04,499 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-06 07:47:04,499 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-06 07:47:04,510 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:47:04" (1/1) ...
[2024-11-06 07:47:04,510 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:47:04" (1/1) ...
[2024-11-06 07:47:04,516 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:47:04" (1/1) ...
[2024-11-06 07:47:04,526 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].
[2024-11-06 07:47:04,526 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:47:04" (1/1) ...
[2024-11-06 07:47:04,527 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:47:04" (1/1) ...
[2024-11-06 07:47:04,537 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:47:04" (1/1) ...
[2024-11-06 07:47:04,541 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:47:04" (1/1) ...
[2024-11-06 07:47:04,543 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:47:04" (1/1) ...
[2024-11-06 07:47:04,544 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:47:04" (1/1) ...
[2024-11-06 07:47:04,547 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-06 07:47:04,548 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-06 07:47:04,548 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-06 07:47:04,548 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-06 07:47:04,549 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:47:04" (1/1) ...
[2024-11-06 07:47:04,555 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 07:47:04,565 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 07:47:04,577 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)
[2024-11-06 07:47:04,588 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
[2024-11-06 07:47:04,612 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-06 07:47:04,612 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-06 07:47:04,612 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-06 07:47:04,612 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-06 07:47:04,612 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-06 07:47:04,612 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-06 07:47:04,682 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-06 07:47:04,684 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-06 07:47:05,167 INFO  L?                        ?]: Removed 12 outVars from TransFormulas that were not future-live.
[2024-11-06 07:47:05,167 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-06 07:47:05,182 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-06 07:47:05,183 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-06 07:47:05,185 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:47:05 BoogieIcfgContainer
[2024-11-06 07:47:05,185 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-06 07:47:05,189 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-06 07:47:05,189 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-06 07:47:05,192 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-06 07:47:05,193 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 07:47:04" (1/3) ...
[2024-11-06 07:47:05,194 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2735bb98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:47:05, skipping insertion in model container
[2024-11-06 07:47:05,194 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:47:04" (2/3) ...
[2024-11-06 07:47:05,195 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2735bb98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:47:05, skipping insertion in model container
[2024-11-06 07:47:05,195 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:47:05" (3/3) ...
[2024-11-06 07:47:05,196 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-76.i
[2024-11-06 07:47:05,212 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-06 07:47:05,213 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-06 07:47:05,272 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-06 07:47:05,278 INFO  L333      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, 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;@67c9bc26, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-06 07:47:05,278 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-06 07:47:05,282 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 51 states, 33 states have (on average 1.393939393939394) internal successors, (46), 34 states have internal predecessors, (46), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15)
[2024-11-06 07:47:05,292 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 98
[2024-11-06 07:47:05,293 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 07:47:05,293 INFO  L215           NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 07:47:05,294 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 07:47:05,299 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 07:47:05,300 INFO  L85        PathProgramCache]: Analyzing trace with hash -286747828, now seen corresponding path program 1 times
[2024-11-06 07:47:05,315 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 07:47:05,315 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1065427353]
[2024-11-06 07:47:05,316 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 07:47:05,316 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
[2024-11-06 07:47:05,316 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 07:47:05,319 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)
[2024-11-06 07:47:05,321 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
[2024-11-06 07:47:05,552 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 07:47:05,558 INFO  L255         TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-06 07:47:05,566 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 07:47:05,606 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked.
[2024-11-06 07:47:05,606 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 07:47:05,607 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 07:47:05,607 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1065427353]
[2024-11-06 07:47:05,608 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1065427353] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 07:47:05,608 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 07:47:05,608 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-06 07:47:05,638 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609776393]
[2024-11-06 07:47:05,639 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 07:47:05,643 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-06 07:47:05,643 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 07:47:05,668 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-06 07:47:05,668 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-06 07:47:05,671 INFO  L87              Difference]: Start difference. First operand  has 51 states, 33 states have (on average 1.393939393939394) internal successors, (46), 34 states have internal predecessors, (46), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand  has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15)
[2024-11-06 07:47:05,704 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 07:47:05,704 INFO  L93              Difference]: Finished difference Result 95 states and 161 transitions.
[2024-11-06 07:47:05,707 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-06 07:47:05,709 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), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 97
[2024-11-06 07:47:05,710 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 07:47:05,718 INFO  L225             Difference]: With dead ends: 95
[2024-11-06 07:47:05,718 INFO  L226             Difference]: Without dead ends: 47
[2024-11-06 07:47:05,722 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-06 07:47:05,726 INFO  L432           NwaCegarLoop]: 68 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-06 07:47:05,727 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-06 07:47:05,745 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 47 states.
[2024-11-06 07:47:05,761 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47.
[2024-11-06 07:47:05,762 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 47 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 30 states have internal predecessors, (38), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15)
[2024-11-06 07:47:05,764 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions.
[2024-11-06 07:47:05,766 INFO  L78                 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 97
[2024-11-06 07:47:05,768 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 07:47:05,768 INFO  L471      AbstractCegarLoop]: Abstraction has 47 states and 68 transitions.
[2024-11-06 07:47:05,769 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15)
[2024-11-06 07:47:05,769 INFO  L276                IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions.
[2024-11-06 07:47:05,772 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 99
[2024-11-06 07:47:05,772 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 07:47:05,772 INFO  L215           NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 07:47:05,782 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
[2024-11-06 07:47:05,973 WARN  L453      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
[2024-11-06 07:47:05,974 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 07:47:05,975 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 07:47:05,975 INFO  L85        PathProgramCache]: Analyzing trace with hash 357321277, now seen corresponding path program 1 times
[2024-11-06 07:47:05,975 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 07:47:05,976 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [543784591]
[2024-11-06 07:47:05,976 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 07:47:05,976 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
[2024-11-06 07:47:05,976 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 07:47:05,977 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)
[2024-11-06 07:47:05,979 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
[2024-11-06 07:47:06,139 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 07:47:06,143 INFO  L255         TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-06 07:47:06,149 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 07:47:06,505 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked.
[2024-11-06 07:47:06,505 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 07:47:06,505 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 07:47:06,505 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [543784591]
[2024-11-06 07:47:06,506 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [543784591] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 07:47:06,506 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 07:47:06,506 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-06 07:47:06,506 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702043417]
[2024-11-06 07:47:06,506 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 07:47:06,508 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-06 07:47:06,508 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 07:47:06,509 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-06 07:47:06,509 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-06 07:47:06,510 INFO  L87              Difference]: Start difference. First operand 47 states and 68 transitions. Second operand  has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15)
[2024-11-06 07:47:07,100 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 07:47:07,101 INFO  L93              Difference]: Finished difference Result 147 states and 214 transitions.
[2024-11-06 07:47:07,108 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-06 07:47:07,108 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 98
[2024-11-06 07:47:07,109 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 07:47:07,111 INFO  L225             Difference]: With dead ends: 147
[2024-11-06 07:47:07,111 INFO  L226             Difference]: Without dead ends: 103
[2024-11-06 07:47:07,112 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2024-11-06 07:47:07,113 INFO  L432           NwaCegarLoop]: 75 mSDtfsCounter, 55 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-06 07:47:07,114 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 236 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-06 07:47:07,115 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 103 states.
[2024-11-06 07:47:07,141 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 89.
[2024-11-06 07:47:07,142 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 89 states, 56 states have (on average 1.2678571428571428) internal successors, (71), 56 states have internal predecessors, (71), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30)
[2024-11-06 07:47:07,145 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 131 transitions.
[2024-11-06 07:47:07,145 INFO  L78                 Accepts]: Start accepts. Automaton has 89 states and 131 transitions. Word has length 98
[2024-11-06 07:47:07,146 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 07:47:07,146 INFO  L471      AbstractCegarLoop]: Abstraction has 89 states and 131 transitions.
[2024-11-06 07:47:07,146 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15)
[2024-11-06 07:47:07,146 INFO  L276                IsEmpty]: Start isEmpty. Operand 89 states and 131 transitions.
[2024-11-06 07:47:07,148 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 99
[2024-11-06 07:47:07,148 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 07:47:07,148 INFO  L215           NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 07:47:07,158 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
[2024-11-06 07:47:07,349 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-06 07:47:07,349 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 07:47:07,350 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 07:47:07,350 INFO  L85        PathProgramCache]: Analyzing trace with hash -35705733, now seen corresponding path program 1 times
[2024-11-06 07:47:07,351 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 07:47:07,351 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [655459746]
[2024-11-06 07:47:07,351 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 07:47:07,351 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
[2024-11-06 07:47:07,352 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 07:47:07,353 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-06 07:47:07,354 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2024-11-06 07:47:07,490 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 07:47:07,494 INFO  L255         TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-06 07:47:07,498 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 07:47:07,528 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked.
[2024-11-06 07:47:07,528 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 07:47:07,529 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 07:47:07,529 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [655459746]
[2024-11-06 07:47:07,529 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [655459746] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 07:47:07,529 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 07:47:07,529 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-06 07:47:07,529 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117930559]
[2024-11-06 07:47:07,530 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 07:47:07,530 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-06 07:47:07,530 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 07:47:07,531 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-06 07:47:07,533 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-06 07:47:07,533 INFO  L87              Difference]: Start difference. First operand 89 states and 131 transitions. Second operand  has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15)
[2024-11-06 07:47:07,666 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 07:47:07,666 INFO  L93              Difference]: Finished difference Result 175 states and 259 transitions.
[2024-11-06 07:47:07,674 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-06 07:47:07,674 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 98
[2024-11-06 07:47:07,675 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 07:47:07,677 INFO  L225             Difference]: With dead ends: 175
[2024-11-06 07:47:07,677 INFO  L226             Difference]: Without dead ends: 89
[2024-11-06 07:47:07,678 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-06 07:47:07,680 INFO  L432           NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-06 07:47:07,680 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 125 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-06 07:47:07,681 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 89 states.
[2024-11-06 07:47:07,705 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89.
[2024-11-06 07:47:07,706 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 89 states, 56 states have (on average 1.2321428571428572) internal successors, (69), 56 states have internal predecessors, (69), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30)
[2024-11-06 07:47:07,707 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 129 transitions.
[2024-11-06 07:47:07,708 INFO  L78                 Accepts]: Start accepts. Automaton has 89 states and 129 transitions. Word has length 98
[2024-11-06 07:47:07,708 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 07:47:07,709 INFO  L471      AbstractCegarLoop]: Abstraction has 89 states and 129 transitions.
[2024-11-06 07:47:07,709 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15)
[2024-11-06 07:47:07,709 INFO  L276                IsEmpty]: Start isEmpty. Operand 89 states and 129 transitions.
[2024-11-06 07:47:07,714 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 100
[2024-11-06 07:47:07,714 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 07:47:07,714 INFO  L215           NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 07:47:07,723 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 (4)] Ended with exit code 0
[2024-11-06 07:47:07,915 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-06 07:47:07,915 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 07:47:07,916 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 07:47:07,916 INFO  L85        PathProgramCache]: Analyzing trace with hash -105577621, now seen corresponding path program 1 times
[2024-11-06 07:47:07,916 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 07:47:07,917 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2006368413]
[2024-11-06 07:47:07,917 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 07:47:07,917 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
[2024-11-06 07:47:07,917 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 07:47:07,920 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)
[2024-11-06 07:47:07,921 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
[2024-11-06 07:47:08,096 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 07:47:08,102 INFO  L255         TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-06 07:47:08,106 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 07:47:08,290 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 204 proven. 27 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked.
[2024-11-06 07:47:08,290 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 07:47:08,488 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 15 proven. 27 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked.
[2024-11-06 07:47:08,489 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 07:47:08,489 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2006368413]
[2024-11-06 07:47:08,489 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2006368413] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-06 07:47:08,489 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-06 07:47:08,489 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8
[2024-11-06 07:47:08,490 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413077868]
[2024-11-06 07:47:08,490 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-06 07:47:08,490 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-06 07:47:08,491 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 07:47:08,491 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-06 07:47:08,492 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-11-06 07:47:08,492 INFO  L87              Difference]: Start difference. First operand 89 states and 129 transitions. Second operand  has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25)
[2024-11-06 07:47:09,613 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 07:47:09,613 INFO  L93              Difference]: Finished difference Result 279 states and 387 transitions.
[2024-11-06 07:47:09,623 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. 
[2024-11-06 07:47:09,623 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 99
[2024-11-06 07:47:09,624 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 07:47:09,626 INFO  L225             Difference]: With dead ends: 279
[2024-11-06 07:47:09,626 INFO  L226             Difference]: Without dead ends: 193
[2024-11-06 07:47:09,628 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 190 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342
[2024-11-06 07:47:09,629 INFO  L432           NwaCegarLoop]: 68 mSDtfsCounter, 77 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-11-06 07:47:09,629 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 182 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-11-06 07:47:09,630 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 193 states.
[2024-11-06 07:47:09,651 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 103.
[2024-11-06 07:47:09,651 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 103 states, 68 states have (on average 1.1470588235294117) internal successors, (78), 68 states have internal predecessors, (78), 30 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30)
[2024-11-06 07:47:09,653 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 138 transitions.
[2024-11-06 07:47:09,653 INFO  L78                 Accepts]: Start accepts. Automaton has 103 states and 138 transitions. Word has length 99
[2024-11-06 07:47:09,654 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 07:47:09,654 INFO  L471      AbstractCegarLoop]: Abstraction has 103 states and 138 transitions.
[2024-11-06 07:47:09,654 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25)
[2024-11-06 07:47:09,654 INFO  L276                IsEmpty]: Start isEmpty. Operand 103 states and 138 transitions.
[2024-11-06 07:47:09,656 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 100
[2024-11-06 07:47:09,656 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 07:47:09,656 INFO  L215           NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 07:47:09,665 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 (5)] Ended with exit code 0
[2024-11-06 07:47:09,860 WARN  L453      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
[2024-11-06 07:47:09,861 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 07:47:09,861 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 07:47:09,861 INFO  L85        PathProgramCache]: Analyzing trace with hash -48319319, now seen corresponding path program 1 times
[2024-11-06 07:47:09,862 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 07:47:09,862 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1174821169]
[2024-11-06 07:47:09,862 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 07:47:09,862 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
[2024-11-06 07:47:09,863 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 07:47:09,864 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-06 07:47:09,866 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2024-11-06 07:47:10,003 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 07:47:10,008 INFO  L255         TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-11-06 07:47:10,013 INFO  L278         TraceCheckSpWp]: Computing forward predicates...