/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_amount100_file-94.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 08:04:09,092 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 08:04:09,175 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 08:04:09,179 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 08:04:09,182 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 08:04:09,209 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 08:04:09,212 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 08:04:09,212 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 08:04:09,213 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 08:04:09,213 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 08:04:09,213 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 08:04:09,214 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 08:04:09,214 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 08:04:09,214 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 08:04:09,215 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 08:04:09,216 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 08:04:09,216 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 08:04:09,217 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 08:04:09,217 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 08:04:09,217 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 08:04:09,217 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 08:04:09,221 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 08:04:09,221 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 08:04:09,221 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 08:04:09,221 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 08:04:09,221 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 08:04:09,222 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 08:04:09,222 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 08:04:09,222 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 08:04:09,222 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 08:04:09,223 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 08:04:09,223 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 08:04:09,223 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 08:04:09,223 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 08:04:09,223 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 08:04:09,223 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 08:04:09,224 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 08:04:09,224 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 08:04:09,225 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 08:04:09,225 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 08:04:09,225 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 08:04:09,225 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 08:04:09,225 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 08:04:09,226 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 08:04:09,226 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-03 08:04:09,474 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 08:04:09,499 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 08:04:09,504 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 08:04:09,505 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 08:04:09,505 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 08:04:09,507 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-94.i
[2024-11-03 08:04:10,970 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 08:04:11,200 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 08:04:11,201 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-94.i
[2024-11-03 08:04:11,214 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94a90df15/b844cde5a3dd471bae3d5ec6e407a780/FLAGb6fbe9b75
[2024-11-03 08:04:11,228 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94a90df15/b844cde5a3dd471bae3d5ec6e407a780
[2024-11-03 08:04:11,231 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 08:04:11,233 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 08:04:11,234 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 08:04:11,234 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 08:04:11,242 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 08:04:11,243 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 08:04:11" (1/1) ...
[2024-11-03 08:04:11,244 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43e615ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:04:11, skipping insertion in model container
[2024-11-03 08:04:11,244 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 08:04:11" (1/1) ...
[2024-11-03 08:04:11,278 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 08:04:11,440 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_amount100_file-94.i[916,929]
[2024-11-03 08:04:11,534 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 08:04:11,556 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 08:04:11,566 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_amount100_file-94.i[916,929]
[2024-11-03 08:04:11,607 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 08:04:11,626 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 08:04:11,627 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:04:11 WrapperNode
[2024-11-03 08:04:11,627 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 08:04:11,628 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 08:04:11,628 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 08:04:11,628 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 08:04:11,635 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:04:11" (1/1) ...
[2024-11-03 08:04:11,648 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:04:11" (1/1) ...
[2024-11-03 08:04:11,678 INFO  L138                Inliner]: procedures = 27, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 194
[2024-11-03 08:04:11,679 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 08:04:11,679 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 08:04:11,679 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 08:04:11,680 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 08:04:11,691 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:04:11" (1/1) ...
[2024-11-03 08:04:11,691 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:04:11" (1/1) ...
[2024-11-03 08:04:11,700 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:04:11" (1/1) ...
[2024-11-03 08:04:11,724 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 08:04:11,724 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:04:11" (1/1) ...
[2024-11-03 08:04:11,725 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:04:11" (1/1) ...
[2024-11-03 08:04:11,737 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:04:11" (1/1) ...
[2024-11-03 08:04:11,744 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:04:11" (1/1) ...
[2024-11-03 08:04:11,751 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:04:11" (1/1) ...
[2024-11-03 08:04:11,761 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:04:11" (1/1) ...
[2024-11-03 08:04:11,769 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 08:04:11,770 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 08:04:11,771 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 08:04:11,771 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 08:04:11,775 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:04:11" (1/1) ...
[2024-11-03 08:04:11,783 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 08:04:11,794 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 08:04:11,811 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 08:04:11,815 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 08:04:11,846 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 08:04:11,846 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 08:04:11,846 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 08:04:11,846 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 08:04:11,846 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 08:04:11,846 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 08:04:11,946 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 08:04:11,948 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 08:04:17,146 INFO  L?                        ?]: Removed 24 outVars from TransFormulas that were not future-live.
[2024-11-03 08:04:17,146 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 08:04:17,168 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 08:04:17,169 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 08:04:17,169 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 08:04:17 BoogieIcfgContainer
[2024-11-03 08:04:17,169 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 08:04:17,171 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 08:04:17,171 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 08:04:17,175 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 08:04:17,175 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 08:04:11" (1/3) ...
[2024-11-03 08:04:17,175 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d85e84d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 08:04:17, skipping insertion in model container
[2024-11-03 08:04:17,176 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:04:11" (2/3) ...
[2024-11-03 08:04:17,176 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d85e84d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 08:04:17, skipping insertion in model container
[2024-11-03 08:04:17,176 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 08:04:17" (3/3) ...
[2024-11-03 08:04:17,177 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-94.i
[2024-11-03 08:04:17,189 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 08:04:17,190 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 08:04:17,239 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 08:04:17,246 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;@1ed643cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 08:04:17,246 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 08:04:17,252 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 86 states, 56 states have (on average 1.4285714285714286) internal successors, (80), 57 states have internal predecessors, (80), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27)
[2024-11-03 08:04:17,266 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 177
[2024-11-03 08:04:17,267 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 08:04:17,268 INFO  L215           NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:04:17,268 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 08:04:17,273 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 08:04:17,273 INFO  L85        PathProgramCache]: Analyzing trace with hash -1612450964, now seen corresponding path program 1 times
[2024-11-03 08:04:17,281 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 08:04:17,282 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2004988247]
[2024-11-03 08:04:17,282 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 08:04:17,284 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 08:04:17,284 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-03 08:04:17,288 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 08:04:17,290 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 08:04:17,782 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 08:04:17,803 INFO  L255         TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 08:04:17,815 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 08:04:17,864 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 472 proven. 0 refuted. 0 times theorem prover too weak. 932 trivial. 0 not checked.
[2024-11-03 08:04:17,864 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 08:04:18,444 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 10 proven. 42 refuted. 0 times theorem prover too weak. 1352 trivial. 0 not checked.
[2024-11-03 08:04:18,445 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 08:04:18,446 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2004988247]
[2024-11-03 08:04:18,446 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [2004988247] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-03 08:04:18,446 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-03 08:04:18,447 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-03 08:04:18,448 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974427975]
[2024-11-03 08:04:18,449 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-03 08:04:18,453 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 08:04:18,453 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 08:04:18,477 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 08:04:18,478 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 08:04:18,480 INFO  L87              Difference]: Start difference. First operand  has 86 states, 56 states have (on average 1.4285714285714286) internal successors, (80), 57 states have internal predecessors, (80), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand  has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27)
[2024-11-03 08:04:18,508 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 08:04:18,510 INFO  L93              Difference]: Finished difference Result 165 states and 289 transitions.
[2024-11-03 08:04:18,511 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 08:04:18,512 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 176
[2024-11-03 08:04:18,513 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 08:04:18,522 INFO  L225             Difference]: With dead ends: 165
[2024-11-03 08:04:18,522 INFO  L226             Difference]: Without dead ends: 82
[2024-11-03 08:04:18,527 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 350 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 08:04:18,532 INFO  L432           NwaCegarLoop]: 127 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, 127 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 08:04:18,533 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 08:04:18,546 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 82 states.
[2024-11-03 08:04:18,572 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82.
[2024-11-03 08:04:18,573 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 82 states, 53 states have (on average 1.3773584905660377) internal successors, (73), 53 states have internal predecessors, (73), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27)
[2024-11-03 08:04:18,576 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 127 transitions.
[2024-11-03 08:04:18,578 INFO  L78                 Accepts]: Start accepts. Automaton has 82 states and 127 transitions. Word has length 176
[2024-11-03 08:04:18,578 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 08:04:18,578 INFO  L471      AbstractCegarLoop]: Abstraction has 82 states and 127 transitions.
[2024-11-03 08:04:18,579 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27)
[2024-11-03 08:04:18,579 INFO  L276                IsEmpty]: Start isEmpty. Operand 82 states and 127 transitions.
[2024-11-03 08:04:18,583 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 177
[2024-11-03 08:04:18,583 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 08:04:18,583 INFO  L215           NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:04:18,603 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2024-11-03 08:04:18,784 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 08:04:18,786 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 08:04:18,787 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 08:04:18,787 INFO  L85        PathProgramCache]: Analyzing trace with hash -1618146258, now seen corresponding path program 1 times
[2024-11-03 08:04:18,787 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 08:04:18,788 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1810929201]
[2024-11-03 08:04:18,788 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 08:04:18,788 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 08:04:18,789 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-03 08:04:18,793 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 08:04:18,794 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 08:04:19,204 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 08:04:19,223 INFO  L255         TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-03 08:04:19,240 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 08:04:20,586 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked.
[2024-11-03 08:04:20,586 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 08:04:21,231 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked.
[2024-11-03 08:04:21,232 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 08:04:21,232 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1810929201]
[2024-11-03 08:04:21,232 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1810929201] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 08:04:21,232 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 08:04:21,233 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 4
[2024-11-03 08:04:21,233 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701212754]
[2024-11-03 08:04:21,233 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 08:04:21,235 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-03 08:04:21,235 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 08:04:21,236 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-03 08:04:21,236 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-03 08:04:21,237 INFO  L87              Difference]: Start difference. First operand 82 states and 127 transitions. Second operand  has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54)
[2024-11-03 08:04:22,852 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 08:04:25,369 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 08:04:27,690 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 08:04:27,747 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 08:04:27,747 INFO  L93              Difference]: Finished difference Result 284 states and 442 transitions.
[2024-11-03 08:04:27,748 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-03 08:04:27,748 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 176
[2024-11-03 08:04:27,750 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 08:04:27,752 INFO  L225             Difference]: With dead ends: 284
[2024-11-03 08:04:27,753 INFO  L226             Difference]: Without dead ends: 205
[2024-11-03 08:04:27,754 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-03 08:04:27,755 INFO  L432           NwaCegarLoop]: 120 mSDtfsCounter, 174 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time
[2024-11-03 08:04:27,755 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 359 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time]
[2024-11-03 08:04:27,756 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 205 states.
[2024-11-03 08:04:27,801 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 157.
[2024-11-03 08:04:27,802 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 157 states, 100 states have (on average 1.34) internal successors, (134), 100 states have internal predecessors, (134), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54)
[2024-11-03 08:04:27,804 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 242 transitions.
[2024-11-03 08:04:27,807 INFO  L78                 Accepts]: Start accepts. Automaton has 157 states and 242 transitions. Word has length 176
[2024-11-03 08:04:27,808 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 08:04:27,808 INFO  L471      AbstractCegarLoop]: Abstraction has 157 states and 242 transitions.
[2024-11-03 08:04:27,808 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54)
[2024-11-03 08:04:27,809 INFO  L276                IsEmpty]: Start isEmpty. Operand 157 states and 242 transitions.
[2024-11-03 08:04:27,813 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 177
[2024-11-03 08:04:27,813 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 08:04:27,813 INFO  L215           NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:04:27,832 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2024-11-03 08:04:28,014 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 08:04:28,015 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 08:04:28,015 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 08:04:28,015 INFO  L85        PathProgramCache]: Analyzing trace with hash -1195444432, now seen corresponding path program 1 times
[2024-11-03 08:04:28,015 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 08:04:28,016 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [842202425]
[2024-11-03 08:04:28,016 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 08:04:28,016 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 08:04:28,016 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-03 08:04:28,017 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 08:04:28,019 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 08:04:28,428 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 08:04:28,444 INFO  L255         TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-03 08:04:28,448 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 08:04:28,520 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked.
[2024-11-03 08:04:28,520 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 08:04:28,893 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked.
[2024-11-03 08:04:28,894 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 08:04:28,894 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [842202425]
[2024-11-03 08:04:28,894 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [842202425] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 08:04:28,894 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 08:04:28,894 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6
[2024-11-03 08:04:28,894 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061903522]
[2024-11-03 08:04:28,895 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 08:04:28,895 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-03 08:04:28,895 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 08:04:28,896 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-03 08:04:28,896 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-03 08:04:28,896 INFO  L87              Difference]: Start difference. First operand 157 states and 242 transitions. Second operand  has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27)
[2024-11-03 08:04:30,896 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 08:04:31,242 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 08:04:31,242 INFO  L93              Difference]: Finished difference Result 346 states and 530 transitions.
[2024-11-03 08:04:31,245 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-03 08:04:31,245 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 176
[2024-11-03 08:04:31,247 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 08:04:31,252 INFO  L225             Difference]: With dead ends: 346
[2024-11-03 08:04:31,252 INFO  L226             Difference]: Without dead ends: 192
[2024-11-03 08:04:31,253 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-03 08:04:31,258 INFO  L432           NwaCegarLoop]: 162 mSDtfsCounter, 77 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time
[2024-11-03 08:04:31,259 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 457 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time]
[2024-11-03 08:04:31,260 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 192 states.
[2024-11-03 08:04:31,303 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 191.
[2024-11-03 08:04:31,303 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 191 states, 116 states have (on average 1.2758620689655173) internal successors, (148), 117 states have internal predecessors, (148), 70 states have call successors, (70), 4 states have call predecessors, (70), 4 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70)
[2024-11-03 08:04:31,309 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 288 transitions.
[2024-11-03 08:04:31,310 INFO  L78                 Accepts]: Start accepts. Automaton has 191 states and 288 transitions. Word has length 176
[2024-11-03 08:04:31,310 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 08:04:31,311 INFO  L471      AbstractCegarLoop]: Abstraction has 191 states and 288 transitions.
[2024-11-03 08:04:31,311 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27)
[2024-11-03 08:04:31,311 INFO  L276                IsEmpty]: Start isEmpty. Operand 191 states and 288 transitions.
[2024-11-03 08:04:31,317 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 178
[2024-11-03 08:04:31,317 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 08:04:31,317 INFO  L215           NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:04:31,338 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0
[2024-11-03 08:04:31,517 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 08:04:31,518 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 08:04:31,519 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 08:04:31,519 INFO  L85        PathProgramCache]: Analyzing trace with hash 346685416, now seen corresponding path program 1 times
[2024-11-03 08:04:31,519 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 08:04:31,519 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1445865827]
[2024-11-03 08:04:31,519 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 08:04:31,519 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 08:04:31,520 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-03 08:04:31,522 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 08:04:31,524 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 08:04:32,125 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 08:04:32,143 INFO  L255         TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 51 conjuncts are in the unsatisfiable core
[2024-11-03 08:04:32,156 INFO  L278         TraceCheckSpWp]: Computing forward predicates...