/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-05 10:21:56,353 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-05 10:21:56,411 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf
[2024-11-05 10:21:56,414 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-05 10:21:56,414 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-05 10:21:56,444 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-05 10:21:56,445 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-05 10:21:56,445 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-05 10:21:56,446 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-05 10:21:56,449 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-05 10:21:56,449 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-05 10:21:56,449 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-05 10:21:56,450 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-05 10:21:56,450 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-05 10:21:56,450 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-05 10:21:56,451 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-05 10:21:56,451 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-05 10:21:56,451 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-05 10:21:56,451 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-05 10:21:56,451 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-05 10:21:56,451 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-05 10:21:56,452 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-05 10:21:56,452 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-05 10:21:56,452 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-05 10:21:56,453 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-05 10:21:56,453 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-05 10:21:56,453 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-05 10:21:56,453 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-05 10:21:56,453 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-05 10:21:56,454 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-05 10:21:56,454 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-05 10:21:56,454 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-05 10:21:56,454 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-05 10:21:56,454 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-05 10:21:56,455 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-05 10:21:56,455 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-05 10:21:56,455 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt 
[2024-11-05 10:21:56,455 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-05 10:21:56,455 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-05 10:21:56,455 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-05 10:21:56,455 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-05 10:21:56,456 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-05 10:21:56,624 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-05 10:21:56,643 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-05 10:21:56,645 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-05 10:21:56,647 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-05 10:21:56,647 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-05 10:21:56,648 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c
[2024-11-05 10:21:57,901 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-05 10:21:58,081 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-05 10:21:58,082 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c
[2024-11-05 10:21:58,096 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/768222d3c/2958c88e10a94b26b120ccd7e14ec31e/FLAG69fb11a6f
[2024-11-05 10:21:58,106 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/768222d3c/2958c88e10a94b26b120ccd7e14ec31e
[2024-11-05 10:21:58,108 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-05 10:21:58,109 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-05 10:21:58,110 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-05 10:21:58,110 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-05 10:21:58,114 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-05 10:21:58,114 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 10:21:58" (1/1) ...
[2024-11-05 10:21:58,115 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45a60225 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:21:58, skipping insertion in model container
[2024-11-05 10:21:58,115 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 10:21:58" (1/1) ...
[2024-11-05 10:21:58,153 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-05 10:21:58,318 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c[1313,1326]
[2024-11-05 10:21:58,487 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-05 10:21:58,499 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-05 10:21:58,507 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c[1313,1326]
[2024-11-05 10:21:58,606 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-05 10:21:58,623 INFO  L204         MainTranslator]: Completed translation
[2024-11-05 10:21:58,624 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:21:58 WrapperNode
[2024-11-05 10:21:58,624 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-05 10:21:58,625 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-05 10:21:58,625 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-05 10:21:58,625 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-05 10:21:58,629 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:21:58" (1/1) ...
[2024-11-05 10:21:58,648 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:21:58" (1/1) ...
[2024-11-05 10:21:58,680 INFO  L138                Inliner]: procedures = 17, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 762
[2024-11-05 10:21:58,681 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-05 10:21:58,681 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-05 10:21:58,682 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-05 10:21:58,682 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-05 10:21:58,694 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:21:58" (1/1) ...
[2024-11-05 10:21:58,694 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:21:58" (1/1) ...
[2024-11-05 10:21:58,699 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:21:58" (1/1) ...
[2024-11-05 10:21:58,723 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].
[2024-11-05 10:21:58,723 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:21:58" (1/1) ...
[2024-11-05 10:21:58,723 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:21:58" (1/1) ...
[2024-11-05 10:21:58,745 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:21:58" (1/1) ...
[2024-11-05 10:21:58,752 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:21:58" (1/1) ...
[2024-11-05 10:21:58,758 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:21:58" (1/1) ...
[2024-11-05 10:21:58,762 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:21:58" (1/1) ...
[2024-11-05 10:21:58,773 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-05 10:21:58,774 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-05 10:21:58,774 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-05 10:21:58,774 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-05 10:21:58,775 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:21:58" (1/1) ...
[2024-11-05 10:21:58,779 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-05 10:21:58,786 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-05 10:21:58,800 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)
[2024-11-05 10:21:58,813 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
[2024-11-05 10:21:58,832 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-05 10:21:58,833 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-05 10:21:58,833 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-05 10:21:58,833 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-05 10:21:58,834 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-05 10:21:58,834 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-05 10:21:59,000 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-05 10:21:59,002 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-05 10:21:59,871 INFO  L?                        ?]: Removed 344 outVars from TransFormulas that were not future-live.
[2024-11-05 10:21:59,871 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-05 10:21:59,878 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-05 10:21:59,878 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-05 10:21:59,879 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 10:21:59 BoogieIcfgContainer
[2024-11-05 10:21:59,879 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-05 10:21:59,881 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-05 10:21:59,881 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-05 10:21:59,883 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-05 10:21:59,883 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 10:21:58" (1/3) ...
[2024-11-05 10:21:59,884 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22569e59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 10:21:59, skipping insertion in model container
[2024-11-05 10:21:59,884 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:21:58" (2/3) ...
[2024-11-05 10:21:59,884 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22569e59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 10:21:59, skipping insertion in model container
[2024-11-05 10:21:59,884 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 10:21:59" (3/3) ...
[2024-11-05 10:21:59,885 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c
[2024-11-05 10:21:59,896 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-05 10:21:59,896 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-05 10:21:59,934 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-05 10:21:59,938 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;@227a53bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-05 10:21:59,938 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-05 10:21:59,941 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 18 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-05 10:21:59,945 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2024-11-05 10:21:59,945 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 10:21:59,949 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-05 10:21:59,950 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 10:21:59,953 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 10:21:59,953 INFO  L85        PathProgramCache]: Analyzing trace with hash 896107007, now seen corresponding path program 1 times
[2024-11-05 10:21:59,959 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-05 10:21:59,959 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1224818284]
[2024-11-05 10:21:59,959 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 10:21:59,960 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
[2024-11-05 10:21:59,961 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 10:21:59,963 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)
[2024-11-05 10:21:59,964 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
[2024-11-05 10:22:00,276 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 10:22:00,282 INFO  L255         TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 18 conjuncts are in the unsatisfiable core
[2024-11-05 10:22:00,289 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 10:22:00,507 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-05 10:22:00,507 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-05 10:22:00,784 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-05 10:22:00,784 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-05 10:22:00,785 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1224818284]
[2024-11-05 10:22:00,785 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1224818284] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-05 10:22:00,785 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-05 10:22:00,785 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6
[2024-11-05 10:22:00,787 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789938692]
[2024-11-05 10:22:00,787 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-05 10:22:00,791 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-05 10:22:00,791 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-05 10:22:00,807 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-05 10:22:00,807 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-05 10:22:00,809 INFO  L87              Difference]: Start difference. First operand  has 18 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand  has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2024-11-05 10:22:01,243 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 10:22:01,244 INFO  L93              Difference]: Finished difference Result 38 states and 53 transitions.
[2024-11-05 10:22:01,245 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-05 10:22:01,246 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 17
[2024-11-05 10:22:01,246 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 10:22:01,251 INFO  L225             Difference]: With dead ends: 38
[2024-11-05 10:22:01,251 INFO  L226             Difference]: Without dead ends: 22
[2024-11-05 10:22:01,253 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-05 10:22:01,256 INFO  L432           NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-05 10:22:01,256 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 42 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-05 10:22:01,268 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 22 states.
[2024-11-05 10:22:01,278 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21.
[2024-11-05 10:22:01,279 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 21 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-11-05 10:22:01,280 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions.
[2024-11-05 10:22:01,281 INFO  L78                 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 17
[2024-11-05 10:22:01,282 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 10:22:01,282 INFO  L471      AbstractCegarLoop]: Abstraction has 21 states and 24 transitions.
[2024-11-05 10:22:01,282 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2024-11-05 10:22:01,283 INFO  L276                IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions.
[2024-11-05 10:22:01,283 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 33
[2024-11-05 10:22:01,284 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 10:22:01,284 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1]
[2024-11-05 10:22:01,290 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
[2024-11-05 10:22:01,484 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
[2024-11-05 10:22:01,485 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 10:22:01,485 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 10:22:01,485 INFO  L85        PathProgramCache]: Analyzing trace with hash 91156387, now seen corresponding path program 1 times
[2024-11-05 10:22:01,485 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-05 10:22:01,486 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [976628354]
[2024-11-05 10:22:01,486 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 10:22:01,486 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
[2024-11-05 10:22:01,486 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 10:22:01,488 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)
[2024-11-05 10:22:01,489 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
[2024-11-05 10:22:02,312 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 10:22:02,336 INFO  L255         TraceCheckSpWp]: Trace formula consists of 710 conjuncts, 24 conjuncts are in the unsatisfiable core
[2024-11-05 10:22:02,347 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 10:22:02,825 INFO  L134       CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked.
[2024-11-05 10:22:02,825 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-05 10:22:03,466 INFO  L134       CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked.
[2024-11-05 10:22:03,466 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-05 10:22:03,467 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [976628354]
[2024-11-05 10:22:03,467 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [976628354] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-05 10:22:03,467 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-05 10:22:03,467 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8
[2024-11-05 10:22:03,467 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073736315]
[2024-11-05 10:22:03,467 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-05 10:22:03,468 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-05 10:22:03,468 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-05 10:22:03,469 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-05 10:22:03,469 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-11-05 10:22:03,469 INFO  L87              Difference]: Start difference. First operand 21 states and 24 transitions. Second operand  has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8)
[2024-11-05 10:22:06,713 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-05 10:22:07,694 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 10:22:07,695 INFO  L93              Difference]: Finished difference Result 45 states and 56 transitions.
[2024-11-05 10:22:07,698 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2024-11-05 10:22:07,699 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 32
[2024-11-05 10:22:07,699 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 10:22:07,700 INFO  L225             Difference]: With dead ends: 45
[2024-11-05 10:22:07,700 INFO  L226             Difference]: Without dead ends: 43
[2024-11-05 10:22:07,700 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156
[2024-11-05 10:22:07,701 INFO  L432           NwaCegarLoop]: 11 mSDtfsCounter, 8 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time
[2024-11-05 10:22:07,701 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 50 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time]
[2024-11-05 10:22:07,702 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 43 states.
[2024-11-05 10:22:07,709 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42.
[2024-11-05 10:22:07,710 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 42 states, 30 states have (on average 1.0333333333333334) internal successors, (31), 30 states have internal predecessors, (31), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10)
[2024-11-05 10:22:07,711 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 51 transitions.
[2024-11-05 10:22:07,711 INFO  L78                 Accepts]: Start accepts. Automaton has 42 states and 51 transitions. Word has length 32
[2024-11-05 10:22:07,711 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 10:22:07,711 INFO  L471      AbstractCegarLoop]: Abstraction has 42 states and 51 transitions.
[2024-11-05 10:22:07,711 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8)
[2024-11-05 10:22:07,711 INFO  L276                IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions.
[2024-11-05 10:22:07,713 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 78
[2024-11-05 10:22:07,713 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 10:22:07,713 INFO  L215           NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1]
[2024-11-05 10:22:07,724 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
[2024-11-05 10:22:07,916 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
[2024-11-05 10:22:07,917 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 10:22:07,917 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 10:22:07,917 INFO  L85        PathProgramCache]: Analyzing trace with hash 257648895, now seen corresponding path program 2 times
[2024-11-05 10:22:07,917 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-05 10:22:07,917 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [824041252]
[2024-11-05 10:22:07,917 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 10:22:07,918 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
[2024-11-05 10:22:07,918 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 10:22:07,919 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)
[2024-11-05 10:22:07,920 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
[2024-11-05 10:22:10,870 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 10:22:10,931 INFO  L255         TraceCheckSpWp]: Trace formula consists of 1538 conjuncts, 28 conjuncts are in the unsatisfiable core
[2024-11-05 10:22:10,941 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 10:22:12,479 INFO  L134       CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked.
[2024-11-05 10:22:12,480 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-05 10:22:14,288 INFO  L134       CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked.
[2024-11-05 10:22:14,289 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-05 10:22:14,289 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [824041252]
[2024-11-05 10:22:14,289 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [824041252] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-05 10:22:14,289 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-05 10:22:14,289 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14
[2024-11-05 10:22:14,289 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669716949]
[2024-11-05 10:22:14,289 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-05 10:22:14,290 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2024-11-05 10:22:14,290 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-05 10:22:14,291 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2024-11-05 10:22:14,291 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182
[2024-11-05 10:22:14,293 INFO  L87              Difference]: Start difference. First operand 42 states and 51 transitions. Second operand  has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 states have internal predecessors, (55), 10 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20)
[2024-11-05 10:22:19,059 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 10:22:19,059 INFO  L93              Difference]: Finished difference Result 59 states and 73 transitions.
[2024-11-05 10:22:19,059 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2024-11-05 10:22:19,060 INFO  L78                 Accepts]: Start accepts. Automaton has  has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 states have internal predecessors, (55), 10 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) Word has length 77
[2024-11-05 10:22:19,060 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 10:22:19,061 INFO  L225             Difference]: With dead ends: 59
[2024-11-05 10:22:19,061 INFO  L226             Difference]: Without dead ends: 57
[2024-11-05 10:22:19,061 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380
[2024-11-05 10:22:19,062 INFO  L432           NwaCegarLoop]: 27 mSDtfsCounter, 6 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time
[2024-11-05 10:22:19,063 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 178 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time]
[2024-11-05 10:22:19,063 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 57 states.
[2024-11-05 10:22:19,073 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 56.
[2024-11-05 10:22:19,073 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 56 states, 40 states have (on average 1.025) internal successors, (41), 40 states have internal predecessors, (41), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14)
[2024-11-05 10:22:19,074 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 69 transitions.
[2024-11-05 10:22:19,075 INFO  L78                 Accepts]: Start accepts. Automaton has 56 states and 69 transitions. Word has length 77
[2024-11-05 10:22:19,075 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 10:22:19,075 INFO  L471      AbstractCegarLoop]: Abstraction has 56 states and 69 transitions.
[2024-11-05 10:22:19,075 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 states have internal predecessors, (55), 10 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20)
[2024-11-05 10:22:19,075 INFO  L276                IsEmpty]: Start isEmpty. Operand 56 states and 69 transitions.
[2024-11-05 10:22:19,077 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 108
[2024-11-05 10:22:19,077 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 10:22:19,077 INFO  L215           NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 6, 6, 1, 1, 1, 1]
[2024-11-05 10:22:19,104 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
[2024-11-05 10:22:19,277 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
[2024-11-05 10:22:19,278 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 10:22:19,279 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 10:22:19,279 INFO  L85        PathProgramCache]: Analyzing trace with hash -761811841, now seen corresponding path program 3 times
[2024-11-05 10:22:19,279 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-05 10:22:19,279 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2124813447]
[2024-11-05 10:22:19,279 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 10:22:19,279 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
[2024-11-05 10:22:19,280 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 10:22:19,282 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)
[2024-11-05 10:22:19,282 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
[2024-11-05 10:22:32,114 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 10:22:32,244 WARN  L253         TraceCheckSpWp]: Trace formula consists of 2090 conjuncts, 1201 conjuncts are in the unsatisfiable core
[2024-11-05 10:22:32,334 INFO  L278         TraceCheckSpWp]: Computing forward predicates...