/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-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-64.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 07:48:53,257 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 07:48:53,316 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-03 07:48:53,323 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 07:48:53,324 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 07:48:53,354 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 07:48:53,355 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 07:48:53,355 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 07:48:53,356 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 07:48:53,356 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 07:48:53,356 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 07:48:53,357 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 07:48:53,357 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 07:48:53,357 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 07:48:53,358 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 07:48:53,358 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 07:48:53,358 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 07:48:53,359 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 07:48:53,359 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 07:48:53,359 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 07:48:53,359 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 07:48:53,360 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 07:48:53,360 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 07:48:53,361 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 07:48:53,361 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 07:48:53,361 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 07:48:53,361 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 07:48:53,362 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 07:48:53,362 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 07:48:53,362 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 07:48:53,362 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 07:48:53,363 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 07:48:53,363 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 07:48:53,363 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 07:48:53,364 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 07:48:53,364 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 07:48:53,364 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 07:48:53,364 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 07:48:53,365 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 07:48:53,365 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 07:48:53,365 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 07:48:53,365 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 07:48:53,366 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 07:48:53,366 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 07:48:53,366 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-03 07:48:53,587 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 07:48:53,612 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 07:48:53,615 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 07:48:53,616 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 07:48:53,616 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 07:48:53,617 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-64.i
[2024-11-03 07:48:55,060 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 07:48:55,234 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 07:48:55,234 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-64.i
[2024-11-03 07:48:55,242 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/652b29062/4b6ae03a69b64e8c89fdf86ead6afbee/FLAG59ebc62e0
[2024-11-03 07:48:55,259 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/652b29062/4b6ae03a69b64e8c89fdf86ead6afbee
[2024-11-03 07:48:55,263 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 07:48:55,264 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 07:48:55,267 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 07:48:55,267 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 07:48:55,273 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 07:48:55,273 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 07:48:55" (1/1) ...
[2024-11-03 07:48:55,274 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5531f7f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:48:55, skipping insertion in model container
[2024-11-03 07:48:55,274 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 07:48:55" (1/1) ...
[2024-11-03 07:48:55,305 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 07:48:55,470 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_no-floats_file-64.i[916,929]
[2024-11-03 07:48:55,509 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 07:48:55,527 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 07:48:55,537 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_no-floats_file-64.i[916,929]
[2024-11-03 07:48:55,558 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 07:48:55,577 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 07:48:55,578 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:48:55 WrapperNode
[2024-11-03 07:48:55,578 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 07:48:55,579 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 07:48:55,579 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 07:48:55,579 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 07:48:55,585 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:48:55" (1/1) ...
[2024-11-03 07:48:55,594 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:48:55" (1/1) ...
[2024-11-03 07:48:55,621 INFO  L138                Inliner]: procedures = 27, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 126
[2024-11-03 07:48:55,621 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 07:48:55,622 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 07:48:55,622 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 07:48:55,622 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 07:48:55,631 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:48:55" (1/1) ...
[2024-11-03 07:48:55,631 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:48:55" (1/1) ...
[2024-11-03 07:48:55,634 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:48:55" (1/1) ...
[2024-11-03 07:48:55,647 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].
[2024-11-03 07:48:55,648 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:48:55" (1/1) ...
[2024-11-03 07:48:55,649 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:48:55" (1/1) ...
[2024-11-03 07:48:55,659 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:48:55" (1/1) ...
[2024-11-03 07:48:55,662 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:48:55" (1/1) ...
[2024-11-03 07:48:55,664 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:48:55" (1/1) ...
[2024-11-03 07:48:55,665 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:48:55" (1/1) ...
[2024-11-03 07:48:55,667 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 07:48:55,668 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 07:48:55,668 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 07:48:55,669 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 07:48:55,669 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:48:55" (1/1) ...
[2024-11-03 07:48:55,679 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 07:48:55,697 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 07:48:55,713 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)
[2024-11-03 07:48:55,721 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
[2024-11-03 07:48:55,745 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 07:48:55,745 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 07:48:55,745 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 07:48:55,745 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 07:48:55,745 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 07:48:55,745 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 07:48:55,809 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 07:48:55,810 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 07:48:56,195 INFO  L?                        ?]: Removed 14 outVars from TransFormulas that were not future-live.
[2024-11-03 07:48:56,195 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 07:48:56,212 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 07:48:56,216 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 07:48:56,217 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 07:48:56 BoogieIcfgContainer
[2024-11-03 07:48:56,217 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 07:48:56,223 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 07:48:56,223 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 07:48:56,227 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 07:48:56,227 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 07:48:55" (1/3) ...
[2024-11-03 07:48:56,229 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5863eef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 07:48:56, skipping insertion in model container
[2024-11-03 07:48:56,229 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:48:55" (2/3) ...
[2024-11-03 07:48:56,229 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5863eef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 07:48:56, skipping insertion in model container
[2024-11-03 07:48:56,229 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 07:48:56" (3/3) ...
[2024-11-03 07:48:56,231 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-64.i
[2024-11-03 07:48:56,246 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 07:48:56,246 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 07:48:56,309 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 07:48:56,315 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;@64ca889d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 07:48:56,315 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 07:48:56,319 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 63 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 37 states have internal predecessors, (49), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24)
[2024-11-03 07:48:56,329 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 146
[2024-11-03 07:48:56,330 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 07:48:56,330 INFO  L215           NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 07:48:56,331 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 07:48:56,335 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 07:48:56,335 INFO  L85        PathProgramCache]: Analyzing trace with hash -766407730, now seen corresponding path program 1 times
[2024-11-03 07:48:56,343 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 07:48:56,344 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1240429147]
[2024-11-03 07:48:56,344 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 07:48:56,347 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
[2024-11-03 07:48:56,347 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-03 07:48:56,350 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)
[2024-11-03 07:48:56,352 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
[2024-11-03 07:48:56,614 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 07:48:56,631 INFO  L255         TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 07:48:56,641 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 07:48:56,702 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 526 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked.
[2024-11-03 07:48:56,703 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 07:48:56,892 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 16 proven. 30 refuted. 0 times theorem prover too weak. 1058 trivial. 0 not checked.
[2024-11-03 07:48:56,893 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 07:48:56,894 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1240429147]
[2024-11-03 07:48:56,895 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1240429147] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-03 07:48:56,896 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-03 07:48:56,896 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-03 07:48:56,899 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176160196]
[2024-11-03 07:48:56,900 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-03 07:48:56,905 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 07:48:56,905 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 07:48:56,929 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 07:48:56,930 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 07:48:56,932 INFO  L87              Difference]: Start difference. First operand  has 63 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 37 states have internal predecessors, (49), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand  has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24)
[2024-11-03 07:48:56,965 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 07:48:56,965 INFO  L93              Difference]: Finished difference Result 119 states and 212 transitions.
[2024-11-03 07:48:56,967 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 07:48:56,969 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 145
[2024-11-03 07:48:56,969 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 07:48:56,978 INFO  L225             Difference]: With dead ends: 119
[2024-11-03 07:48:56,979 INFO  L226             Difference]: Without dead ends: 59
[2024-11-03 07:48:56,983 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 07:48:56,986 INFO  L432           NwaCegarLoop]: 89 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, 89 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
[2024-11-03 07:48:56,987 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 07:48:57,005 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 59 states.
[2024-11-03 07:48:57,032 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59.
[2024-11-03 07:48:57,034 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 59 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 33 states have internal predecessors, (41), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24)
[2024-11-03 07:48:57,036 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 89 transitions.
[2024-11-03 07:48:57,043 INFO  L78                 Accepts]: Start accepts. Automaton has 59 states and 89 transitions. Word has length 145
[2024-11-03 07:48:57,044 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 07:48:57,044 INFO  L471      AbstractCegarLoop]: Abstraction has 59 states and 89 transitions.
[2024-11-03 07:48:57,044 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24)
[2024-11-03 07:48:57,045 INFO  L276                IsEmpty]: Start isEmpty. Operand 59 states and 89 transitions.
[2024-11-03 07:48:57,050 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 146
[2024-11-03 07:48:57,050 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 07:48:57,051 INFO  L215           NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 07:48:57,065 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
[2024-11-03 07:48:57,252 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
[2024-11-03 07:48:57,252 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 07:48:57,253 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 07:48:57,253 INFO  L85        PathProgramCache]: Analyzing trace with hash 1694646600, now seen corresponding path program 1 times
[2024-11-03 07:48:57,253 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 07:48:57,254 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1329523224]
[2024-11-03 07:48:57,254 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 07:48:57,254 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
[2024-11-03 07:48:57,254 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-03 07:48:57,260 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)
[2024-11-03 07:48:57,261 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
[2024-11-03 07:48:57,448 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 07:48:57,457 INFO  L255         TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-11-03 07:48:57,467 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 07:49:08,552 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked.
[2024-11-03 07:49:08,552 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 07:49:32,874 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked.
[2024-11-03 07:49:32,875 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 07:49:32,875 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1329523224]
[2024-11-03 07:49:32,875 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1329523224] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 07:49:32,875 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 07:49:32,875 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 9] imperfect sequences [] total 16
[2024-11-03 07:49:32,876 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082085395]
[2024-11-03 07:49:32,876 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 07:49:32,878 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2024-11-03 07:49:32,878 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 07:49:32,879 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2024-11-03 07:49:32,880 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240
[2024-11-03 07:49:32,880 INFO  L87              Difference]: Start difference. First operand 59 states and 89 transitions. Second operand  has 16 states, 16 states have (on average 3.4375) internal successors, (55), 16 states have internal predecessors, (55), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48)
[2024-11-03 07:49:50,651 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 07:49:50,652 INFO  L93              Difference]: Finished difference Result 256 states and 385 transitions.
[2024-11-03 07:49:50,673 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. 
[2024-11-03 07:49:50,673 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 3.4375) internal successors, (55), 16 states have internal predecessors, (55), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 145
[2024-11-03 07:49:50,674 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 07:49:50,677 INFO  L225             Difference]: With dead ends: 256
[2024-11-03 07:49:50,678 INFO  L226             Difference]: Without dead ends: 200
[2024-11-03 07:49:50,679 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=144, Invalid=456, Unknown=0, NotChecked=0, Total=600
[2024-11-03 07:49:50,680 INFO  L432           NwaCegarLoop]: 75 mSDtfsCounter, 150 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time
[2024-11-03 07:49:50,681 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 603 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 12.5s Time]
[2024-11-03 07:49:50,682 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 200 states.
[2024-11-03 07:49:50,731 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 164.
[2024-11-03 07:49:50,732 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 164 states, 88 states have (on average 1.1931818181818181) internal successors, (105), 88 states have internal predecessors, (105), 72 states have call successors, (72), 3 states have call predecessors, (72), 3 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72)
[2024-11-03 07:49:50,734 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 249 transitions.
[2024-11-03 07:49:50,735 INFO  L78                 Accepts]: Start accepts. Automaton has 164 states and 249 transitions. Word has length 145
[2024-11-03 07:49:50,736 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 07:49:50,736 INFO  L471      AbstractCegarLoop]: Abstraction has 164 states and 249 transitions.
[2024-11-03 07:49:50,736 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 3.4375) internal successors, (55), 16 states have internal predecessors, (55), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48)
[2024-11-03 07:49:50,736 INFO  L276                IsEmpty]: Start isEmpty. Operand 164 states and 249 transitions.
[2024-11-03 07:49:50,738 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 147
[2024-11-03 07:49:50,738 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 07:49:50,739 INFO  L215           NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 07:49:50,753 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0
[2024-11-03 07:49:50,939 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
[2024-11-03 07:49:50,940 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 07:49:50,940 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 07:49:50,941 INFO  L85        PathProgramCache]: Analyzing trace with hash 2124128555, now seen corresponding path program 1 times
[2024-11-03 07:49:50,941 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 07:49:50,941 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [78016518]
[2024-11-03 07:49:50,941 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 07:49:50,941 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
[2024-11-03 07:49:50,942 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-03 07:49:50,944 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)
[2024-11-03 07:49:50,945 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
[2024-11-03 07:49:51,069 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 07:49:51,079 INFO  L255         TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-03 07:49:51,085 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 07:49:58,370 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked.
[2024-11-03 07:49:58,371 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 07:50:19,448 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked.
[2024-11-03 07:50:19,449 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 07:50:19,449 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [78016518]
[2024-11-03 07:50:19,449 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [78016518] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 07:50:19,449 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 07:50:19,449 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 7] imperfect sequences [] total 9
[2024-11-03 07:50:19,450 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977454551]
[2024-11-03 07:50:19,450 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 07:50:19,451 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-03 07:50:19,451 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 07:50:19,452 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-03 07:50:19,452 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72
[2024-11-03 07:50:19,453 INFO  L87              Difference]: Start difference. First operand 164 states and 249 transitions. Second operand  has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 1 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48)
[2024-11-03 07:50:19,932 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 07:50:19,933 INFO  L93              Difference]: Finished difference Result 268 states and 402 transitions.
[2024-11-03 07:50:19,933 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-03 07:50:19,933 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 1 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 146
[2024-11-03 07:50:19,934 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 07:50:19,936 INFO  L225             Difference]: With dead ends: 268
[2024-11-03 07:50:19,936 INFO  L226             Difference]: Without dead ends: 156
[2024-11-03 07:50:19,939 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 282 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110
[2024-11-03 07:50:19,940 INFO  L432           NwaCegarLoop]: 122 mSDtfsCounter, 71 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-03 07:50:19,941 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 629 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-03 07:50:19,942 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 156 states.
[2024-11-03 07:50:19,968 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 99.
[2024-11-03 07:50:19,969 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 99 states, 59 states have (on average 1.11864406779661) internal successors, (66), 60 states have internal predecessors, (66), 37 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37)
[2024-11-03 07:50:19,970 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 140 transitions.
[2024-11-03 07:50:19,971 INFO  L78                 Accepts]: Start accepts. Automaton has 99 states and 140 transitions. Word has length 146
[2024-11-03 07:50:19,971 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 07:50:19,971 INFO  L471      AbstractCegarLoop]: Abstraction has 99 states and 140 transitions.
[2024-11-03 07:50:19,972 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 1 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48)
[2024-11-03 07:50:19,972 INFO  L276                IsEmpty]: Start isEmpty. Operand 99 states and 140 transitions.
[2024-11-03 07:50:19,974 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 148
[2024-11-03 07:50:19,974 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 07:50:19,974 INFO  L215           NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 07:50:19,984 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2024-11-03 07:50:20,174 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
[2024-11-03 07:50:20,175 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 07:50:20,176 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 07:50:20,176 INFO  L85        PathProgramCache]: Analyzing trace with hash -1793484961, now seen corresponding path program 1 times
[2024-11-03 07:50:20,176 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 07:50:20,176 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [303136963]
[2024-11-03 07:50:20,176 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 07:50:20,176 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
[2024-11-03 07:50:20,177 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-03 07:50:20,179 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)
[2024-11-03 07:50:20,181 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
[2024-11-03 07:50:20,325 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 07:50:20,334 INFO  L255         TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-03 07:50:20,338 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 07:50:20,901 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 428 proven. 111 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked.
[2024-11-03 07:50:20,901 INFO  L311         TraceCheckSpWp]: Computing backward predicates...