/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-21.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 07:44:44,192 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 07:44:44,257 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 07:44:44,262 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 07:44:44,263 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 07:44:44,285 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 07:44:44,286 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 07:44:44,286 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 07:44:44,287 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 07:44:44,289 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 07:44:44,290 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 07:44:44,290 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 07:44:44,290 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 07:44:44,291 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 07:44:44,291 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 07:44:44,291 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 07:44:44,291 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 07:44:44,291 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 07:44:44,291 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 07:44:44,292 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 07:44:44,292 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 07:44:44,292 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 07:44:44,292 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 07:44:44,293 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 07:44:44,293 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 07:44:44,293 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 07:44:44,293 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 07:44:44,293 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 07:44:44,293 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 07:44:44,294 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 07:44:44,294 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 07:44:44,294 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 07:44:44,294 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 07:44:44,294 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 07:44:44,294 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 07:44:44,295 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 07:44:44,295 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 07:44:44,295 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 07:44:44,295 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 07:44:44,295 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 07:44:44,295 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 07:44:44,297 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 07:44:44,297 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 07:44:44,297 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 07:44:44,298 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-03 07:44:44,493 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 07:44:44,514 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 07:44:44,516 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 07:44:44,517 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 07:44:44,518 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 07:44:44,519 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-21.i
[2024-11-03 07:44:45,855 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 07:44:46,004 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 07:44:46,005 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-21.i
[2024-11-03 07:44:46,014 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81f1991a2/18be2b898b68468390b6ad6efe1ef7b2/FLAG1ca10902f
[2024-11-03 07:44:46,405 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81f1991a2/18be2b898b68468390b6ad6efe1ef7b2
[2024-11-03 07:44:46,408 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 07:44:46,409 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 07:44:46,410 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 07:44:46,410 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 07:44:46,414 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 07:44:46,415 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 07:44:46" (1/1) ...
[2024-11-03 07:44:46,415 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@601f00b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:44:46, skipping insertion in model container
[2024-11-03 07:44:46,415 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 07:44:46" (1/1) ...
[2024-11-03 07:44:46,433 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 07:44:46,573 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-21.i[916,929]
[2024-11-03 07:44:46,603 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 07:44:46,615 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 07:44:46,627 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-21.i[916,929]
[2024-11-03 07:44:46,644 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 07:44:46,661 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 07:44:46,662 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:44:46 WrapperNode
[2024-11-03 07:44:46,662 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 07:44:46,663 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 07:44:46,663 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 07:44:46,663 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 07:44:46,668 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:44:46" (1/1) ...
[2024-11-03 07:44:46,676 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:44:46" (1/1) ...
[2024-11-03 07:44:46,695 INFO  L138                Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 90
[2024-11-03 07:44:46,696 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 07:44:46,696 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 07:44:46,696 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 07:44:46,697 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 07:44:46,706 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:44:46" (1/1) ...
[2024-11-03 07:44:46,706 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:44:46" (1/1) ...
[2024-11-03 07:44:46,709 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:44:46" (1/1) ...
[2024-11-03 07:44:46,720 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 07:44:46,720 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:44:46" (1/1) ...
[2024-11-03 07:44:46,720 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:44:46" (1/1) ...
[2024-11-03 07:44:46,725 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:44:46" (1/1) ...
[2024-11-03 07:44:46,728 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:44:46" (1/1) ...
[2024-11-03 07:44:46,729 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:44:46" (1/1) ...
[2024-11-03 07:44:46,731 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:44:46" (1/1) ...
[2024-11-03 07:44:46,733 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 07:44:46,734 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 07:44:46,734 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 07:44:46,734 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 07:44:46,735 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:44:46" (1/1) ...
[2024-11-03 07:44:46,740 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 07:44:46,752 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 07:44:46,766 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 07:44:46,769 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 07:44:46,792 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 07:44:46,793 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 07:44:46,793 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 07:44:46,793 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 07:44:46,793 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 07:44:46,793 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 07:44:46,866 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 07:44:46,868 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 07:44:47,262 INFO  L?                        ?]: Removed 8 outVars from TransFormulas that were not future-live.
[2024-11-03 07:44:47,262 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 07:44:47,276 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 07:44:47,277 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 07:44:47,277 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 07:44:47 BoogieIcfgContainer
[2024-11-03 07:44:47,277 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 07:44:47,281 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 07:44:47,281 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 07:44:47,284 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 07:44:47,284 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 07:44:46" (1/3) ...
[2024-11-03 07:44:47,285 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c94e54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 07:44:47, skipping insertion in model container
[2024-11-03 07:44:47,285 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:44:46" (2/3) ...
[2024-11-03 07:44:47,286 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c94e54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 07:44:47, skipping insertion in model container
[2024-11-03 07:44:47,286 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 07:44:47" (3/3) ...
[2024-11-03 07:44:47,287 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-21.i
[2024-11-03 07:44:47,300 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 07:44:47,301 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 07:44:47,378 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 07:44:47,384 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;@74aee7ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 07:44:47,385 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 07:44:47,389 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 44 states, 29 states have (on average 1.4137931034482758) internal successors, (41), 30 states have internal predecessors, (41), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12)
[2024-11-03 07:44:47,397 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2024-11-03 07:44:47,398 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 07:44:47,398 INFO  L215           NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:44:47,399 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 07:44:47,402 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 07:44:47,403 INFO  L85        PathProgramCache]: Analyzing trace with hash -1187149162, now seen corresponding path program 1 times
[2024-11-03 07:44:47,409 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 07:44:47,409 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [162279133]
[2024-11-03 07:44:47,410 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 07:44:47,411 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 07:44:47,411 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-03 07:44:47,413 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 07:44:47,413 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 07:44:47,525 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 07:44:47,529 INFO  L255         TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 07:44:47,538 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 07:44:47,566 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked.
[2024-11-03 07:44:47,567 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 07:44:47,642 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked.
[2024-11-03 07:44:47,646 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 07:44:47,647 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [162279133]
[2024-11-03 07:44:47,647 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [162279133] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-03 07:44:47,647 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-03 07:44:47,648 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-03 07:44:47,649 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087272943]
[2024-11-03 07:44:47,650 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-03 07:44:47,653 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 07:44:47,653 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 07:44:47,675 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 07:44:47,675 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 07:44:47,677 INFO  L87              Difference]: Start difference. First operand  has 44 states, 29 states have (on average 1.4137931034482758) internal successors, (41), 30 states have internal predecessors, (41), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand  has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12)
[2024-11-03 07:44:47,700 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 07:44:47,700 INFO  L93              Difference]: Finished difference Result 81 states and 136 transitions.
[2024-11-03 07:44:47,702 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 07:44:47,703 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 78
[2024-11-03 07:44:47,703 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 07:44:47,708 INFO  L225             Difference]: With dead ends: 81
[2024-11-03 07:44:47,708 INFO  L226             Difference]: Without dead ends: 40
[2024-11-03 07:44:47,711 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 154 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 07:44:47,714 INFO  L432           NwaCegarLoop]: 58 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, 58 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 07:44:47,715 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 07:44:47,729 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 40 states.
[2024-11-03 07:44:47,742 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40.
[2024-11-03 07:44:47,743 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 40 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12)
[2024-11-03 07:44:47,744 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 58 transitions.
[2024-11-03 07:44:47,746 INFO  L78                 Accepts]: Start accepts. Automaton has 40 states and 58 transitions. Word has length 78
[2024-11-03 07:44:47,746 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 07:44:47,746 INFO  L471      AbstractCegarLoop]: Abstraction has 40 states and 58 transitions.
[2024-11-03 07:44:47,746 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12)
[2024-11-03 07:44:47,746 INFO  L276                IsEmpty]: Start isEmpty. Operand 40 states and 58 transitions.
[2024-11-03 07:44:47,749 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2024-11-03 07:44:47,749 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 07:44:47,749 INFO  L215           NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:44:47,756 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
[2024-11-03 07:44:47,953 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 07:44:47,954 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 07:44:47,955 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 07:44:47,955 INFO  L85        PathProgramCache]: Analyzing trace with hash 1652535958, now seen corresponding path program 1 times
[2024-11-03 07:44:47,955 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 07:44:47,956 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1953415510]
[2024-11-03 07:44:47,956 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 07:44:47,956 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 07:44:47,956 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-03 07:44:47,960 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 07:44:47,965 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 07:44:48,073 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 07:44:48,076 INFO  L255         TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-03 07:44:48,084 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 07:44:48,296 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked.
[2024-11-03 07:44:48,296 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 07:44:50,090 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked.
[2024-11-03 07:44:50,090 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 07:44:50,091 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1953415510]
[2024-11-03 07:44:50,091 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1953415510] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 07:44:50,091 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 07:44:50,091 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6
[2024-11-03 07:44:50,091 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475457121]
[2024-11-03 07:44:50,091 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 07:44:50,093 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-03 07:44:50,094 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 07:44:50,095 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-03 07:44:50,095 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-03 07:44:50,095 INFO  L87              Difference]: Start difference. First operand 40 states and 58 transitions. Second operand  has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 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 07:44:50,637 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 07:44:50,637 INFO  L93              Difference]: Finished difference Result 133 states and 192 transitions.
[2024-11-03 07:44:50,639 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-03 07:44:50,640 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 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 78
[2024-11-03 07:44:50,640 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 07:44:50,642 INFO  L225             Difference]: With dead ends: 133
[2024-11-03 07:44:50,642 INFO  L226             Difference]: Without dead ends: 96
[2024-11-03 07:44:50,642 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-03 07:44:50,645 INFO  L432           NwaCegarLoop]: 51 mSDtfsCounter, 96 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-03 07:44:50,646 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 207 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-03 07:44:50,647 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 96 states.
[2024-11-03 07:44:50,657 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 73.
[2024-11-03 07:44:50,658 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 73 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 46 states have internal predecessors, (58), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24)
[2024-11-03 07:44:50,659 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 106 transitions.
[2024-11-03 07:44:50,659 INFO  L78                 Accepts]: Start accepts. Automaton has 73 states and 106 transitions. Word has length 78
[2024-11-03 07:44:50,660 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 07:44:50,660 INFO  L471      AbstractCegarLoop]: Abstraction has 73 states and 106 transitions.
[2024-11-03 07:44:50,660 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 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 07:44:50,660 INFO  L276                IsEmpty]: Start isEmpty. Operand 73 states and 106 transitions.
[2024-11-03 07:44:50,662 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 80
[2024-11-03 07:44:50,662 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 07:44:50,662 INFO  L215           NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:44:50,668 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
[2024-11-03 07:44:50,866 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 07:44:50,867 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 07:44:50,867 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 07:44:50,867 INFO  L85        PathProgramCache]: Analyzing trace with hash 286353608, now seen corresponding path program 1 times
[2024-11-03 07:44:50,868 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 07:44:50,868 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [395071274]
[2024-11-03 07:44:50,868 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 07:44:50,868 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 07:44:50,868 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-03 07:44:50,871 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 07:44:50,872 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 07:44:50,922 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 07:44:50,924 INFO  L255         TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-03 07:44:50,927 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 07:44:51,015 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 143 proven. 15 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked.
[2024-11-03 07:44:51,015 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 07:44:51,147 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 18 proven. 15 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked.
[2024-11-03 07:44:51,147 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 07:44:51,147 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [395071274]
[2024-11-03 07:44:51,147 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [395071274] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 07:44:51,148 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 07:44:51,148 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2024-11-03 07:44:51,148 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677377331]
[2024-11-03 07:44:51,148 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 07:44:51,149 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-03 07:44:51,149 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 07:44:51,149 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-03 07:44:51,149 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-03 07:44:51,150 INFO  L87              Difference]: Start difference. First operand 73 states and 106 transitions. Second operand  has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18)
[2024-11-03 07:44:51,331 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 07:44:51,331 INFO  L93              Difference]: Finished difference Result 149 states and 210 transitions.
[2024-11-03 07:44:51,336 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-03 07:44:51,351 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 79
[2024-11-03 07:44:51,352 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 07:44:51,356 INFO  L225             Difference]: With dead ends: 149
[2024-11-03 07:44:51,356 INFO  L226             Difference]: Without dead ends: 79
[2024-11-03 07:44:51,357 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 150 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90
[2024-11-03 07:44:51,358 INFO  L432           NwaCegarLoop]: 40 mSDtfsCounter, 53 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-03 07:44:51,358 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 95 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-03 07:44:51,359 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 79 states.
[2024-11-03 07:44:51,370 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 74.
[2024-11-03 07:44:51,371 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 74 states, 45 states have (on average 1.1555555555555554) internal successors, (52), 45 states have internal predecessors, (52), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24)
[2024-11-03 07:44:51,372 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 100 transitions.
[2024-11-03 07:44:51,373 INFO  L78                 Accepts]: Start accepts. Automaton has 74 states and 100 transitions. Word has length 79
[2024-11-03 07:44:51,374 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 07:44:51,374 INFO  L471      AbstractCegarLoop]: Abstraction has 74 states and 100 transitions.
[2024-11-03 07:44:51,375 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18)
[2024-11-03 07:44:51,375 INFO  L276                IsEmpty]: Start isEmpty. Operand 74 states and 100 transitions.
[2024-11-03 07:44:51,377 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 81
[2024-11-03 07:44:51,377 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 07:44:51,377 INFO  L215           NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:44:51,383 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
[2024-11-03 07:44:51,581 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 07:44:51,581 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 07:44:51,583 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 07:44:51,583 INFO  L85        PathProgramCache]: Analyzing trace with hash 1288327348, now seen corresponding path program 1 times
[2024-11-03 07:44:51,583 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 07:44:51,583 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [211189402]
[2024-11-03 07:44:51,584 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 07:44:51,584 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 07:44:51,584 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-03 07:44:51,585 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 07:44:51,586 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 07:44:51,649 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 07:44:51,651 INFO  L255         TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-11-03 07:44:51,655 INFO  L278         TraceCheckSpWp]: Computing forward predicates...