/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 --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver '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' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c


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


This is Ultimate 0.2.5-dev-356b6ba-m
[2024-11-01 18:16:28,150 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-01 18:16:28,236 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf
[2024-11-01 18:16:28,241 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-01 18:16:28,242 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-01 18:16:28,278 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-01 18:16:28,279 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-01 18:16:28,279 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-01 18:16:28,280 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-01 18:16:28,280 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-01 18:16:28,280 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-01 18:16:28,281 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-01 18:16:28,281 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-01 18:16:28,282 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-01 18:16:28,282 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-01 18:16:28,282 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-01 18:16:28,283 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-01 18:16:28,285 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-01 18:16:28,285 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-01 18:16:28,287 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-01 18:16:28,288 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-01 18:16:28,288 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-01 18:16:28,288 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-01 18:16:28,289 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-01 18:16:28,289 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-01 18:16:28,289 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-01 18:16:28,289 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-01 18:16:28,290 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-01 18:16:28,290 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-01 18:16:28,290 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-01 18:16:28,291 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-01 18:16:28,294 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-01 18:16:28,294 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-01 18:16:28,295 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-01 18:16:28,295 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-01 18:16:28,295 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-01 18:16:28,295 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt 
[2024-11-01 18:16:28,296 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-01 18:16:28,296 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-01 18:16:28,296 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-01 18:16:28,296 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-01 18:16:28,298 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2024-11-01 18:16:28,298 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-01 18:16:28,628 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-01 18:16:28,650 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-01 18:16:28,653 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-01 18:16:28,654 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-01 18:16:28,654 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-01 18:16:28,656 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c
[2024-11-01 18:16:30,201 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-01 18:16:30,554 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-01 18:16:30,555 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c
[2024-11-01 18:16:30,583 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65a3876f0/dbb4c0a753354cfdab0b40f82a43f8d8/FLAGe22f9d170
[2024-11-01 18:16:30,612 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65a3876f0/dbb4c0a753354cfdab0b40f82a43f8d8
[2024-11-01 18:16:30,614 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-01 18:16:30,616 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-01 18:16:30,617 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-01 18:16:30,617 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-01 18:16:30,623 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-01 18:16:30,624 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 06:16:30" (1/1) ...
[2024-11-01 18:16:30,625 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58cba481 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:16:30, skipping insertion in model container
[2024-11-01 18:16:30,625 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 06:16:30" (1/1) ...
[2024-11-01 18:16:30,686 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-01 18:16:30,892 WARN  L251   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c[1313,1326]
[2024-11-01 18:16:31,134 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-01 18:16:31,153 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-01 18:16:31,165 WARN  L251   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c[1313,1326]
[2024-11-01 18:16:31,307 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-01 18:16:31,325 INFO  L204         MainTranslator]: Completed translation
[2024-11-01 18:16:31,326 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:16:31 WrapperNode
[2024-11-01 18:16:31,326 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-01 18:16:31,327 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-01 18:16:31,327 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-01 18:16:31,327 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-01 18:16:31,333 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:16:31" (1/1) ...
[2024-11-01 18:16:31,372 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:16:31" (1/1) ...
[2024-11-01 18:16:31,431 INFO  L138                Inliner]: procedures = 17, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 762
[2024-11-01 18:16:31,431 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-01 18:16:31,432 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-01 18:16:31,432 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-01 18:16:31,432 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-01 18:16:31,443 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:16:31" (1/1) ...
[2024-11-01 18:16:31,443 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:16:31" (1/1) ...
[2024-11-01 18:16:31,455 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:16:31" (1/1) ...
[2024-11-01 18:16:31,495 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].
[2024-11-01 18:16:31,496 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:16:31" (1/1) ...
[2024-11-01 18:16:31,496 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:16:31" (1/1) ...
[2024-11-01 18:16:31,532 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:16:31" (1/1) ...
[2024-11-01 18:16:31,540 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:16:31" (1/1) ...
[2024-11-01 18:16:31,548 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:16:31" (1/1) ...
[2024-11-01 18:16:31,556 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:16:31" (1/1) ...
[2024-11-01 18:16:31,576 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-01 18:16:31,579 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-01 18:16:31,579 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-01 18:16:31,579 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-01 18:16:31,580 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:16:31" (1/1) ...
[2024-11-01 18:16:31,586 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-01 18:16:31,599 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-01 18:16:31,615 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)
[2024-11-01 18:16:31,622 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
[2024-11-01 18:16:31,644 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-01 18:16:31,644 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-01 18:16:31,645 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-01 18:16:31,645 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-01 18:16:31,645 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-01 18:16:31,645 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-01 18:16:31,884 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-01 18:16:31,886 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-01 18:16:33,212 INFO  L?                        ?]: Removed 344 outVars from TransFormulas that were not future-live.
[2024-11-01 18:16:33,212 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-01 18:16:33,223 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-01 18:16:33,223 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-01 18:16:33,225 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 06:16:33 BoogieIcfgContainer
[2024-11-01 18:16:33,226 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-01 18:16:33,228 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-01 18:16:33,228 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-01 18:16:33,232 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-01 18:16:33,232 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.11 06:16:30" (1/3) ...
[2024-11-01 18:16:33,233 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@529858ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 06:16:33, skipping insertion in model container
[2024-11-01 18:16:33,233 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:16:31" (2/3) ...
[2024-11-01 18:16:33,233 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@529858ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 06:16:33, skipping insertion in model container
[2024-11-01 18:16:33,233 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 06:16:33" (3/3) ...
[2024-11-01 18:16:33,235 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c
[2024-11-01 18:16:33,253 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-01 18:16:33,254 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-01 18:16:33,308 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-01 18:16:33,313 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;@7bca44f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-01 18:16:33,313 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-01 18:16:33,316 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 18 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-01 18:16:33,323 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2024-11-01 18:16:33,323 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-01 18:16:33,324 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-01 18:16:33,325 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-01 18:16:33,331 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-01 18:16:33,332 INFO  L85        PathProgramCache]: Analyzing trace with hash 896107007, now seen corresponding path program 1 times
[2024-11-01 18:16:33,341 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-01 18:16:33,342 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [190003672]
[2024-11-01 18:16:33,342 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-01 18:16:33,344 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
[2024-11-01 18:16:33,344 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-01 18:16:33,348 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)
[2024-11-01 18:16:33,356 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
[2024-11-01 18:16:33,819 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-01 18:16:33,831 INFO  L255         TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 18 conjuncts are in the unsatisfiable core
[2024-11-01 18:16:33,843 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-01 18:16:34,241 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-01 18:16:34,242 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-01 18:16:34,786 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-01 18:16:34,787 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-01 18:16:34,787 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [190003672]
[2024-11-01 18:16:34,788 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [190003672] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-01 18:16:34,788 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-01 18:16:34,788 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6
[2024-11-01 18:16:34,790 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302063603]
[2024-11-01 18:16:34,790 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-01 18:16:34,794 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-01 18:16:34,794 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-01 18:16:34,814 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-01 18:16:34,815 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-01 18:16:34,817 INFO  L87              Difference]: Start difference. First operand  has 18 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand  has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2024-11-01 18:16:35,378 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-01 18:16:35,378 INFO  L93              Difference]: Finished difference Result 38 states and 53 transitions.
[2024-11-01 18:16:35,380 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-01 18:16:35,381 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 17
[2024-11-01 18:16:35,382 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-01 18:16:35,387 INFO  L225             Difference]: With dead ends: 38
[2024-11-01 18:16:35,387 INFO  L226             Difference]: Without dead ends: 22
[2024-11-01 18:16:35,390 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-01 18:16:35,393 INFO  L432           NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-01 18:16:35,394 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 42 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-01 18:16:35,408 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 22 states.
[2024-11-01 18:16:35,420 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21.
[2024-11-01 18:16:35,421 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 21 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-11-01 18:16:35,422 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions.
[2024-11-01 18:16:35,424 INFO  L78                 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 17
[2024-11-01 18:16:35,426 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-01 18:16:35,426 INFO  L471      AbstractCegarLoop]: Abstraction has 21 states and 24 transitions.
[2024-11-01 18:16:35,426 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2024-11-01 18:16:35,426 INFO  L276                IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions.
[2024-11-01 18:16:35,428 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 33
[2024-11-01 18:16:35,428 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-01 18:16:35,428 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1]
[2024-11-01 18:16:35,438 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2024-11-01 18:16:35,629 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
[2024-11-01 18:16:35,630 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-01 18:16:35,630 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-01 18:16:35,630 INFO  L85        PathProgramCache]: Analyzing trace with hash 91156387, now seen corresponding path program 1 times
[2024-11-01 18:16:35,631 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-01 18:16:35,631 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1242662921]
[2024-11-01 18:16:35,631 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-01 18:16:35,631 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
[2024-11-01 18:16:35,631 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-01 18:16:35,635 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)
[2024-11-01 18:16:35,636 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
[2024-11-01 18:16:36,751 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-01 18:16:36,780 INFO  L255         TraceCheckSpWp]: Trace formula consists of 710 conjuncts, 24 conjuncts are in the unsatisfiable core
[2024-11-01 18:16:36,793 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-01 18:16:37,475 INFO  L134       CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked.
[2024-11-01 18:16:37,476 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-01 18:16:38,276 INFO  L134       CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked.
[2024-11-01 18:16:38,277 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-01 18:16:38,277 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1242662921]
[2024-11-01 18:16:38,277 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1242662921] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-01 18:16:38,277 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-01 18:16:38,277 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8
[2024-11-01 18:16:38,277 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959853471]
[2024-11-01 18:16:38,278 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-01 18:16:38,279 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-01 18:16:38,279 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-01 18:16:38,282 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-01 18:16:38,282 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-11-01 18:16:38,283 INFO  L87              Difference]: Start difference. First operand 21 states and 24 transitions. Second operand  has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8)
[2024-11-01 18:16:42,257 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-01 18:16:43,438 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-01 18:16:43,438 INFO  L93              Difference]: Finished difference Result 45 states and 56 transitions.
[2024-11-01 18:16:43,439 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2024-11-01 18:16:43,439 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 32
[2024-11-01 18:16:43,439 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-01 18:16:43,440 INFO  L225             Difference]: With dead ends: 45
[2024-11-01 18:16:43,440 INFO  L226             Difference]: Without dead ends: 43
[2024-11-01 18:16:43,441 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156
[2024-11-01 18:16:43,442 INFO  L432           NwaCegarLoop]: 11 mSDtfsCounter, 8 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time
[2024-11-01 18:16:43,443 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 50 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time]
[2024-11-01 18:16:43,443 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 43 states.
[2024-11-01 18:16:43,454 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42.
[2024-11-01 18:16:43,454 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 42 states, 30 states have (on average 1.0333333333333334) internal successors, (31), 30 states have internal predecessors, (31), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10)
[2024-11-01 18:16:43,456 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 51 transitions.
[2024-11-01 18:16:43,457 INFO  L78                 Accepts]: Start accepts. Automaton has 42 states and 51 transitions. Word has length 32
[2024-11-01 18:16:43,457 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-01 18:16:43,457 INFO  L471      AbstractCegarLoop]: Abstraction has 42 states and 51 transitions.
[2024-11-01 18:16:43,457 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8)
[2024-11-01 18:16:43,458 INFO  L276                IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions.
[2024-11-01 18:16:43,460 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 78
[2024-11-01 18:16:43,460 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-01 18:16:43,460 INFO  L215           NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1]
[2024-11-01 18:16:43,480 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
[2024-11-01 18:16:43,661 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
[2024-11-01 18:16:43,661 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-01 18:16:43,662 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-01 18:16:43,662 INFO  L85        PathProgramCache]: Analyzing trace with hash 257648895, now seen corresponding path program 2 times
[2024-11-01 18:16:43,662 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-01 18:16:43,662 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2042994196]
[2024-11-01 18:16:43,663 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-01 18:16:43,663 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
[2024-11-01 18:16:43,663 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-01 18:16:43,666 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)
[2024-11-01 18:16:43,667 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
[2024-11-01 18:16:47,159 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-01 18:16:47,227 INFO  L255         TraceCheckSpWp]: Trace formula consists of 1538 conjuncts, 28 conjuncts are in the unsatisfiable core
[2024-11-01 18:16:47,240 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-01 18:16:48,525 INFO  L134       CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked.
[2024-11-01 18:16:48,526 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-01 18:16:50,836 INFO  L134       CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked.
[2024-11-01 18:16:50,836 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-01 18:16:50,836 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2042994196]
[2024-11-01 18:16:50,837 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [2042994196] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-01 18:16:50,837 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-01 18:16:50,837 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14
[2024-11-01 18:16:50,837 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441420211]
[2024-11-01 18:16:50,837 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-01 18:16:50,838 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2024-11-01 18:16:50,838 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-01 18:16:50,839 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2024-11-01 18:16:50,839 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182
[2024-11-01 18:16:50,840 INFO  L87              Difference]: Start difference. First operand 42 states and 51 transitions. Second operand  has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 states have internal predecessors, (55), 10 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20)
[2024-11-01 18:16:55,467 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-01 18:16:55,468 INFO  L93              Difference]: Finished difference Result 59 states and 73 transitions.
[2024-11-01 18:16:55,468 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2024-11-01 18:16:55,469 INFO  L78                 Accepts]: Start accepts. Automaton has  has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 states have internal predecessors, (55), 10 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) Word has length 77
[2024-11-01 18:16:55,470 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-01 18:16:55,471 INFO  L225             Difference]: With dead ends: 59
[2024-11-01 18:16:55,471 INFO  L226             Difference]: Without dead ends: 57
[2024-11-01 18:16:55,471 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380
[2024-11-01 18:16:55,472 INFO  L432           NwaCegarLoop]: 27 mSDtfsCounter, 6 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time
[2024-11-01 18:16:55,473 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 178 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time]
[2024-11-01 18:16:55,474 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 57 states.
[2024-11-01 18:16:55,491 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 56.
[2024-11-01 18:16:55,492 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 56 states, 40 states have (on average 1.025) internal successors, (41), 40 states have internal predecessors, (41), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14)
[2024-11-01 18:16:55,497 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 69 transitions.
[2024-11-01 18:16:55,497 INFO  L78                 Accepts]: Start accepts. Automaton has 56 states and 69 transitions. Word has length 77
[2024-11-01 18:16:55,498 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-01 18:16:55,498 INFO  L471      AbstractCegarLoop]: Abstraction has 56 states and 69 transitions.
[2024-11-01 18:16:55,498 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 states have internal predecessors, (55), 10 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20)
[2024-11-01 18:16:55,498 INFO  L276                IsEmpty]: Start isEmpty. Operand 56 states and 69 transitions.
[2024-11-01 18:16:55,504 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 108
[2024-11-01 18:16:55,504 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-01 18:16:55,505 INFO  L215           NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 6, 6, 1, 1, 1, 1]
[2024-11-01 18:16:55,550 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
[2024-11-01 18:16:55,705 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
[2024-11-01 18:16:55,706 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-01 18:16:55,706 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-01 18:16:55,707 INFO  L85        PathProgramCache]: Analyzing trace with hash -761811841, now seen corresponding path program 3 times
[2024-11-01 18:16:55,707 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-01 18:16:55,707 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1791638040]
[2024-11-01 18:16:55,707 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-01 18:16:55,708 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
[2024-11-01 18:16:55,708 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-01 18:16:55,711 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)
[2024-11-01 18:16:55,712 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
[2024-11-01 18:17:11,443 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-01 18:17:11,587 WARN  L253         TraceCheckSpWp]: Trace formula consists of 2090 conjuncts, 1201 conjuncts are in the unsatisfiable core
[2024-11-01 18:17:11,693 INFO  L278         TraceCheckSpWp]: Computing forward predicates...