/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_operatoramount_amount50_file-26.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 08:49:43,397 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 08:49:43,476 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 08:49:43,483 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 08:49:43,483 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 08:49:43,512 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 08:49:43,512 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 08:49:43,513 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 08:49:43,515 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 08:49:43,517 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 08:49:43,517 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 08:49:43,517 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 08:49:43,518 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 08:49:43,518 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 08:49:43,519 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 08:49:43,519 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 08:49:43,519 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 08:49:43,519 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 08:49:43,520 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 08:49:43,520 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 08:49:43,523 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 08:49:43,524 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 08:49:43,524 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 08:49:43,524 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 08:49:43,524 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 08:49:43,525 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 08:49:43,525 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 08:49:43,525 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 08:49:43,525 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 08:49:43,525 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 08:49:43,526 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 08:49:43,526 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 08:49:43,527 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 08:49:43,527 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 08:49:43,527 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 08:49:43,527 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 08:49:43,527 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 08:49:43,527 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 08:49:43,527 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 08:49:43,528 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 08:49:43,528 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 08:49:43,528 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 08:49:43,528 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 08:49:43,528 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 08:49:43,528 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-03 08:49:43,762 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 08:49:43,784 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 08:49:43,788 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 08:49:43,789 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 08:49:43,789 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 08:49:43,790 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-26.i
[2024-11-03 08:49:45,147 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 08:49:45,380 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 08:49:45,380 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-26.i
[2024-11-03 08:49:45,392 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7482eb78/d455fac28ffd4d1a8aa8379a1660229c/FLAG2d79f01da
[2024-11-03 08:49:45,408 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7482eb78/d455fac28ffd4d1a8aa8379a1660229c
[2024-11-03 08:49:45,410 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 08:49:45,411 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 08:49:45,412 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 08:49:45,412 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 08:49:45,419 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 08:49:45,419 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 08:49:45" (1/1) ...
[2024-11-03 08:49:45,420 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41d3ed77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:49:45, skipping insertion in model container
[2024-11-03 08:49:45,420 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 08:49:45" (1/1) ...
[2024-11-03 08:49:45,449 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 08:49:45,594 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_operatoramount_amount50_file-26.i[915,928]
[2024-11-03 08:49:45,641 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 08:49:45,657 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 08:49:45,669 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_operatoramount_amount50_file-26.i[915,928]
[2024-11-03 08:49:45,695 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 08:49:45,718 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 08:49:45,719 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:49:45 WrapperNode
[2024-11-03 08:49:45,719 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 08:49:45,720 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 08:49:45,720 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 08:49:45,722 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 08:49:45,727 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:49:45" (1/1) ...
[2024-11-03 08:49:45,737 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:49:45" (1/1) ...
[2024-11-03 08:49:45,763 INFO  L138                Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 139
[2024-11-03 08:49:45,763 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 08:49:45,764 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 08:49:45,764 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 08:49:45,764 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 08:49:45,783 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:49:45" (1/1) ...
[2024-11-03 08:49:45,784 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:49:45" (1/1) ...
[2024-11-03 08:49:45,796 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:49:45" (1/1) ...
[2024-11-03 08:49:45,810 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 08:49:45,811 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:49:45" (1/1) ...
[2024-11-03 08:49:45,815 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:49:45" (1/1) ...
[2024-11-03 08:49:45,831 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:49:45" (1/1) ...
[2024-11-03 08:49:45,835 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:49:45" (1/1) ...
[2024-11-03 08:49:45,837 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:49:45" (1/1) ...
[2024-11-03 08:49:45,839 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:49:45" (1/1) ...
[2024-11-03 08:49:45,842 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 08:49:45,843 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 08:49:45,843 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 08:49:45,843 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 08:49:45,844 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:49:45" (1/1) ...
[2024-11-03 08:49:45,852 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 08:49:45,861 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 08:49:45,873 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 08:49:45,875 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 08:49:45,893 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 08:49:45,893 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 08:49:45,893 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 08:49:45,894 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 08:49:45,894 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 08:49:45,894 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 08:49:45,960 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 08:49:45,962 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 08:49:59,020 INFO  L?                        ?]: Removed 20 outVars from TransFormulas that were not future-live.
[2024-11-03 08:49:59,020 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 08:49:59,033 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 08:49:59,033 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 08:49:59,034 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 08:49:59 BoogieIcfgContainer
[2024-11-03 08:49:59,034 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 08:49:59,037 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 08:49:59,037 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 08:49:59,041 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 08:49:59,041 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 08:49:45" (1/3) ...
[2024-11-03 08:49:59,042 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58640a77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 08:49:59, skipping insertion in model container
[2024-11-03 08:49:59,042 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:49:45" (2/3) ...
[2024-11-03 08:49:59,043 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58640a77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 08:49:59, skipping insertion in model container
[2024-11-03 08:49:59,043 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 08:49:59" (3/3) ...
[2024-11-03 08:49:59,044 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-26.i
[2024-11-03 08:49:59,059 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 08:49:59,060 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 08:49:59,114 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 08:49:59,119 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;@4d50c8cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 08:49:59,120 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 08:49:59,123 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 60 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 40 states have internal predecessors, (54), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-03 08:49:59,135 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 119
[2024-11-03 08:49:59,136 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 08:49:59,136 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:59,137 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 08:49:59,142 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 08:49:59,144 INFO  L85        PathProgramCache]: Analyzing trace with hash 711714392, now seen corresponding path program 1 times
[2024-11-03 08:49:59,152 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 08:49:59,153 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [740402186]
[2024-11-03 08:49:59,153 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 08:49:59,156 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 08:49:59,156 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-03 08:49:59,159 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 08:49:59,161 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 08:50:00,069 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 08:50:00,095 INFO  L255         TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 08:50:00,105 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 08:50:00,146 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 242 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked.
[2024-11-03 08:50:00,146 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 08:50:01,055 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 26 proven. 8 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked.
[2024-11-03 08:50:01,056 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 08:50:01,056 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [740402186]
[2024-11-03 08:50:01,057 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [740402186] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-03 08:50:01,057 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-03 08:50:01,057 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-03 08:50:01,059 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485068505]
[2024-11-03 08:50:01,060 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-03 08:50:01,064 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 08:50:01,064 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 08:50:01,108 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 08:50:01,109 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 08:50:01,111 INFO  L87              Difference]: Start difference. First operand  has 60 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 40 states have internal predecessors, (54), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand  has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18)
[2024-11-03 08:50:01,132 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 08:50:01,133 INFO  L93              Difference]: Finished difference Result 113 states and 192 transitions.
[2024-11-03 08:50:01,134 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 08:50:01,135 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 118
[2024-11-03 08:50:01,136 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 08:50:01,142 INFO  L225             Difference]: With dead ends: 113
[2024-11-03 08:50:01,143 INFO  L226             Difference]: Without dead ends: 56
[2024-11-03 08:50:01,146 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 234 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 08:50:01,150 INFO  L432           NwaCegarLoop]: 83 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, 83 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 08:50:01,151 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 08:50:01,167 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 56 states.
[2024-11-03 08:50:01,186 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56.
[2024-11-03 08:50:01,189 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 56 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 36 states have internal predecessors, (47), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-03 08:50:01,191 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 83 transitions.
[2024-11-03 08:50:01,193 INFO  L78                 Accepts]: Start accepts. Automaton has 56 states and 83 transitions. Word has length 118
[2024-11-03 08:50:01,193 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 08:50:01,193 INFO  L471      AbstractCegarLoop]: Abstraction has 56 states and 83 transitions.
[2024-11-03 08:50:01,194 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18)
[2024-11-03 08:50:01,194 INFO  L276                IsEmpty]: Start isEmpty. Operand 56 states and 83 transitions.
[2024-11-03 08:50:01,198 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 119
[2024-11-03 08:50:01,198 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 08:50:01,199 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:50:01,228 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2024-11-03 08:50:01,403 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 08:50:01,404 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 08:50:01,405 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 08:50:01,405 INFO  L85        PathProgramCache]: Analyzing trace with hash -138715684, now seen corresponding path program 1 times
[2024-11-03 08:50:01,405 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 08:50:01,406 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [650326833]
[2024-11-03 08:50:01,406 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 08:50:01,406 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 08:50:01,406 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-03 08:50:01,409 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 08:50:01,411 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 08:50:02,241 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 08:50:02,264 INFO  L255         TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-03 08:50:02,270 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 08:50:04,925 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 233 proven. 39 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked.
[2024-11-03 08:50:04,926 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 08:50:06,256 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked.
[2024-11-03 08:50:06,256 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 08:50:06,256 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [650326833]
[2024-11-03 08:50:06,257 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [650326833] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-03 08:50:06,257 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-03 08:50:06,257 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9
[2024-11-03 08:50:06,257 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953563919]
[2024-11-03 08:50:06,257 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-03 08:50:06,259 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-03 08:50:06,259 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 08:50:06,260 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-03 08:50:06,260 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72
[2024-11-03 08:50:06,260 INFO  L87              Difference]: Start difference. First operand 56 states and 83 transitions. Second operand  has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)
[2024-11-03 08:50:11,285 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 08:50:15,293 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 08:50:19,309 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 08:50:23,314 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 08:50:23,427 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 08:50:23,428 INFO  L93              Difference]: Finished difference Result 136 states and 200 transitions.
[2024-11-03 08:50:23,430 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-03 08:50:23,430 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 118
[2024-11-03 08:50:23,431 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 08:50:23,433 INFO  L225             Difference]: With dead ends: 136
[2024-11-03 08:50:23,433 INFO  L226             Difference]: Without dead ends: 83
[2024-11-03 08:50:23,436 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90
[2024-11-03 08:50:23,437 INFO  L432           NwaCegarLoop]: 93 mSDtfsCounter, 33 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time
[2024-11-03 08:50:23,438 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 258 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 4 Unknown, 0 Unchecked, 17.0s Time]
[2024-11-03 08:50:23,439 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 83 states.
[2024-11-03 08:50:23,459 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 80.
[2024-11-03 08:50:23,460 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 80 states, 56 states have (on average 1.3392857142857142) internal successors, (75), 57 states have internal predecessors, (75), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21)
[2024-11-03 08:50:23,462 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 117 transitions.
[2024-11-03 08:50:23,462 INFO  L78                 Accepts]: Start accepts. Automaton has 80 states and 117 transitions. Word has length 118
[2024-11-03 08:50:23,465 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 08:50:23,466 INFO  L471      AbstractCegarLoop]: Abstraction has 80 states and 117 transitions.
[2024-11-03 08:50:23,466 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)
[2024-11-03 08:50:23,466 INFO  L276                IsEmpty]: Start isEmpty. Operand 80 states and 117 transitions.
[2024-11-03 08:50:23,471 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 120
[2024-11-03 08:50:23,471 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 08:50:23,472 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:50:23,504 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0
[2024-11-03 08:50:23,672 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 08:50:23,673 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 08:50:23,673 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 08:50:23,673 INFO  L85        PathProgramCache]: Analyzing trace with hash -557508680, now seen corresponding path program 1 times
[2024-11-03 08:50:23,674 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 08:50:23,674 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [870268673]
[2024-11-03 08:50:23,674 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 08:50:23,674 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 08:50:23,674 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-03 08:50:23,677 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 08:50:23,678 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 08:50:24,492 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 08:50:24,516 INFO  L255         TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-03 08:50:24,521 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 08:50:27,450 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked.
[2024-11-03 08:50:27,450 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 08:50:29,740 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked.
[2024-11-03 08:50:29,741 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 08:50:29,741 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [870268673]
[2024-11-03 08:50:29,741 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [870268673] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 08:50:29,741 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 08:50:29,741 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8
[2024-11-03 08:50:29,742 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186893872]
[2024-11-03 08:50:29,742 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 08:50:29,743 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-03 08:50:29,743 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 08:50:29,746 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-03 08:50:29,747 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2024-11-03 08:50:29,747 INFO  L87              Difference]: Start difference. First operand 80 states and 117 transitions. Second operand  has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36)
[2024-11-03 08:50:37,034 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 08:50:41,043 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 08:50:45,047 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-03 08:50:49,058 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 08:50:53,065 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-03 08:50:54,350 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-03 08:50:59,539 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 08:51:03,545 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-03 08:51:07,553 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 08:51:11,559 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-03 08:51:11,560 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 08:51:11,560 INFO  L93              Difference]: Finished difference Result 237 states and 349 transitions.
[2024-11-03 08:51:11,630 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-03 08:51:11,630 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 119
[2024-11-03 08:51:11,631 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 08:51:11,634 INFO  L225             Difference]: With dead ends: 237
[2024-11-03 08:51:11,634 INFO  L226             Difference]: Without dead ends: 160
[2024-11-03 08:51:11,635 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90
[2024-11-03 08:51:11,636 INFO  L432           NwaCegarLoop]: 85 mSDtfsCounter, 100 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 38 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.5s IncrementalHoareTripleChecker+Time
[2024-11-03 08:51:11,636 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 383 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 121 Invalid, 9 Unknown, 0 Unchecked, 41.5s Time]
[2024-11-03 08:51:11,637 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 160 states.
[2024-11-03 08:51:11,667 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 138.
[2024-11-03 08:51:11,668 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 138 states, 95 states have (on average 1.3368421052631578) internal successors, (127), 96 states have internal predecessors, (127), 39 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39)
[2024-11-03 08:51:11,669 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 205 transitions.
[2024-11-03 08:51:11,670 INFO  L78                 Accepts]: Start accepts. Automaton has 138 states and 205 transitions. Word has length 119
[2024-11-03 08:51:11,670 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 08:51:11,670 INFO  L471      AbstractCegarLoop]: Abstraction has 138 states and 205 transitions.
[2024-11-03 08:51:11,671 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36)
[2024-11-03 08:51:11,671 INFO  L276                IsEmpty]: Start isEmpty. Operand 138 states and 205 transitions.
[2024-11-03 08:51:11,672 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 120
[2024-11-03 08:51:11,672 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 08:51:11,673 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:51:11,700 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2024-11-03 08:51:11,873 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 08:51:11,874 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 08:51:11,874 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 08:51:11,874 INFO  L85        PathProgramCache]: Analyzing trace with hash 122549690, now seen corresponding path program 1 times
[2024-11-03 08:51:11,875 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 08:51:11,875 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [318454634]
[2024-11-03 08:51:11,875 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 08:51:11,875 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 08:51:11,875 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-03 08:51:11,878 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 08:51:11,879 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 08:51:12,693 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 08:51:12,720 INFO  L255         TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 22 conjuncts are in the unsatisfiable core
[2024-11-03 08:51:12,727 INFO  L278         TraceCheckSpWp]: Computing forward predicates...