/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 --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.trace.refinement.strategy FOX -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-20.i


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


This is Ultimate 0.2.5-dev-17387ad-m
[2024-11-06 08:20:42,016 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-06 08:20:42,093 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-06 08:20:42,099 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-06 08:20:42,100 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-06 08:20:42,125 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-06 08:20:42,126 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-06 08:20:42,128 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-06 08:20:42,129 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-06 08:20:42,131 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-06 08:20:42,131 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-06 08:20:42,131 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-06 08:20:42,132 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-06 08:20:42,132 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-06 08:20:42,132 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-06 08:20:42,133 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-06 08:20:42,133 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-06 08:20:42,137 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-06 08:20:42,137 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-06 08:20:42,137 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-06 08:20:42,137 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-06 08:20:42,139 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-06 08:20:42,139 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-06 08:20:42,139 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-06 08:20:42,139 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-06 08:20:42,139 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-06 08:20:42,140 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-06 08:20:42,140 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-06 08:20:42,140 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-06 08:20:42,140 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-06 08:20:42,141 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-06 08:20:42,141 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-06 08:20:42,141 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-06 08:20:42,141 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-06 08:20:42,141 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 08:20:42,142 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-06 08:20:42,142 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-06 08:20:42,143 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-06 08:20:42,143 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-06 08:20:42,143 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-06 08:20:42,143 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-06 08:20:42,144 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-06 08:20:42,144 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-06 08:20:42,144 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-06 08:20:42,144 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX
[2024-11-06 08:20:42,386 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-06 08:20:42,411 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-06 08:20:42,414 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-06 08:20:42,415 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-06 08:20:42,416 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-06 08:20:42,417 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-20.i
[2024-11-06 08:20:43,899 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-06 08:20:44,176 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-06 08:20:44,176 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-20.i
[2024-11-06 08:20:44,193 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b9734346/c9fb0ccde51e4ecfa465149020fcfe54/FLAG65bf8ac5f
[2024-11-06 08:20:44,223 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b9734346/c9fb0ccde51e4ecfa465149020fcfe54
[2024-11-06 08:20:44,227 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-06 08:20:44,228 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-06 08:20:44,230 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-06 08:20:44,230 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-06 08:20:44,236 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-06 08:20:44,237 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:20:44" (1/1) ...
[2024-11-06 08:20:44,238 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48834e14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:20:44, skipping insertion in model container
[2024-11-06 08:20:44,238 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:20:44" (1/1) ...
[2024-11-06 08:20:44,282 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-06 08:20:44,468 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_amount250_file-20.i[916,929]
[2024-11-06 08:20:44,656 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 08:20:44,676 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-06 08:20:44,689 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_amount250_file-20.i[916,929]
[2024-11-06 08:20:44,778 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 08:20:44,800 INFO  L204         MainTranslator]: Completed translation
[2024-11-06 08:20:44,800 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:20:44 WrapperNode
[2024-11-06 08:20:44,801 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-06 08:20:44,802 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-06 08:20:44,802 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-06 08:20:44,802 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-06 08:20:44,807 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:20:44" (1/1) ...
[2024-11-06 08:20:44,824 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:20:44" (1/1) ...
[2024-11-06 08:20:44,860 INFO  L138                Inliner]: procedures = 27, calls = 62, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 360
[2024-11-06 08:20:44,861 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-06 08:20:44,862 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-06 08:20:44,862 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-06 08:20:44,862 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-06 08:20:44,872 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:20:44" (1/1) ...
[2024-11-06 08:20:44,872 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:20:44" (1/1) ...
[2024-11-06 08:20:44,879 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:20:44" (1/1) ...
[2024-11-06 08:20:44,910 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].
[2024-11-06 08:20:44,910 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:20:44" (1/1) ...
[2024-11-06 08:20:44,910 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:20:44" (1/1) ...
[2024-11-06 08:20:44,939 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:20:44" (1/1) ...
[2024-11-06 08:20:44,945 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:20:44" (1/1) ...
[2024-11-06 08:20:44,957 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:20:44" (1/1) ...
[2024-11-06 08:20:44,967 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:20:44" (1/1) ...
[2024-11-06 08:20:44,980 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-06 08:20:44,982 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-06 08:20:44,982 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-06 08:20:44,982 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-06 08:20:44,983 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:20:44" (1/1) ...
[2024-11-06 08:20:44,990 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 08:20:44,999 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 08:20:45,018 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)
[2024-11-06 08:20:45,021 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
[2024-11-06 08:20:45,047 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-06 08:20:45,049 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-06 08:20:45,049 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-06 08:20:45,049 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-06 08:20:45,049 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-06 08:20:45,049 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-06 08:20:45,212 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-06 08:20:45,215 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-06 08:20:57,877 INFO  L?                        ?]: Removed 46 outVars from TransFormulas that were not future-live.
[2024-11-06 08:20:57,877 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-06 08:20:57,892 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-06 08:20:57,892 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-06 08:20:57,893 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:20:57 BoogieIcfgContainer
[2024-11-06 08:20:57,893 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-06 08:20:57,895 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-06 08:20:57,895 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-06 08:20:57,898 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-06 08:20:57,898 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:20:44" (1/3) ...
[2024-11-06 08:20:57,899 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46a99bc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:20:57, skipping insertion in model container
[2024-11-06 08:20:57,899 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:20:44" (2/3) ...
[2024-11-06 08:20:57,899 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46a99bc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:20:57, skipping insertion in model container
[2024-11-06 08:20:57,899 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:20:57" (3/3) ...
[2024-11-06 08:20:57,900 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-20.i
[2024-11-06 08:20:57,918 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-06 08:20:57,918 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-06 08:20:57,993 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-06 08:20:57,999 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;@159dcb72, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-06 08:20:57,999 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-06 08:20:58,005 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 155 states, 103 states have (on average 1.4854368932038835) internal successors, (153), 104 states have internal predecessors, (153), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49)
[2024-11-06 08:20:58,023 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 319
[2024-11-06 08:20:58,024 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:20:58,025 INFO  L215           NwaCegarLoop]: trace histogram [49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 08:20:58,025 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:20:58,030 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:20:58,030 INFO  L85        PathProgramCache]: Analyzing trace with hash -873228041, now seen corresponding path program 1 times
[2024-11-06 08:20:58,044 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:20:58,044 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [724211724]
[2024-11-06 08:20:58,045 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:20:58,045 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
[2024-11-06 08:20:58,045 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:20:58,048 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)
[2024-11-06 08:20:58,050 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
[2024-11-06 08:20:59,301 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:20:59,365 INFO  L255         TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-06 08:20:59,384 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:20:59,463 INFO  L134       CoverageAnalysis]: Checked inductivity of 4704 backedges. 1724 proven. 0 refuted. 0 times theorem prover too weak. 2980 trivial. 0 not checked.
[2024-11-06 08:20:59,464 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 08:20:59,464 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:20:59,465 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [724211724]
[2024-11-06 08:20:59,465 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [724211724] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 08:20:59,465 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 08:20:59,466 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-06 08:20:59,467 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185577934]
[2024-11-06 08:20:59,468 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 08:20:59,472 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-06 08:20:59,473 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:20:59,500 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-06 08:20:59,501 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-06 08:20:59,505 INFO  L87              Difference]: Start difference. First operand  has 155 states, 103 states have (on average 1.4854368932038835) internal successors, (153), 104 states have internal predecessors, (153), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) Second operand  has 2 states, 2 states have (on average 40.0) internal successors, (80), 2 states have internal predecessors, (80), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49)
[2024-11-06 08:20:59,562 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:20:59,563 INFO  L93              Difference]: Finished difference Result 302 states and 543 transitions.
[2024-11-06 08:20:59,564 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-06 08:20:59,565 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 40.0) internal successors, (80), 2 states have internal predecessors, (80), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 318
[2024-11-06 08:20:59,566 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:20:59,574 INFO  L225             Difference]: With dead ends: 302
[2024-11-06 08:20:59,574 INFO  L226             Difference]: Without dead ends: 150
[2024-11-06 08:20:59,581 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-06 08:20:59,587 INFO  L432           NwaCegarLoop]: 241 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, 241 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
[2024-11-06 08:20:59,588 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-06 08:20:59,607 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 150 states.
[2024-11-06 08:20:59,648 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150.
[2024-11-06 08:20:59,650 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 150 states, 99 states have (on average 1.4444444444444444) internal successors, (143), 99 states have internal predecessors, (143), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49)
[2024-11-06 08:20:59,653 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 241 transitions.
[2024-11-06 08:20:59,657 INFO  L78                 Accepts]: Start accepts. Automaton has 150 states and 241 transitions. Word has length 318
[2024-11-06 08:20:59,658 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:20:59,658 INFO  L471      AbstractCegarLoop]: Abstraction has 150 states and 241 transitions.
[2024-11-06 08:20:59,658 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 40.0) internal successors, (80), 2 states have internal predecessors, (80), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49)
[2024-11-06 08:20:59,659 INFO  L276                IsEmpty]: Start isEmpty. Operand 150 states and 241 transitions.
[2024-11-06 08:20:59,667 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 319
[2024-11-06 08:20:59,668 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:20:59,668 INFO  L215           NwaCegarLoop]: trace histogram [49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 08:20:59,715 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
[2024-11-06 08:20:59,869 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
[2024-11-06 08:20:59,870 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:20:59,870 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:20:59,871 INFO  L85        PathProgramCache]: Analyzing trace with hash -987053719, now seen corresponding path program 1 times
[2024-11-06 08:20:59,872 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:20:59,873 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [374495795]
[2024-11-06 08:20:59,873 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:20:59,873 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
[2024-11-06 08:20:59,873 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:20:59,877 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)
[2024-11-06 08:20:59,878 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
[2024-11-06 08:21:01,098 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:21:01,165 INFO  L255         TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-06 08:21:01,176 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:21:01,334 INFO  L134       CoverageAnalysis]: Checked inductivity of 4704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4704 trivial. 0 not checked.
[2024-11-06 08:21:01,335 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 08:21:01,335 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:21:01,335 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [374495795]
[2024-11-06 08:21:01,336 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [374495795] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 08:21:01,336 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 08:21:01,336 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-06 08:21:01,336 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233466100]
[2024-11-06 08:21:01,337 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 08:21:01,338 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-06 08:21:01,339 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:21:01,340 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-06 08:21:01,340 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-06 08:21:01,340 INFO  L87              Difference]: Start difference. First operand 150 states and 241 transitions. Second operand  has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49)
[2024-11-06 08:21:05,985 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.35s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:21:09,991 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:21:09,998 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:21:09,999 INFO  L93              Difference]: Finished difference Result 364 states and 586 transitions.
[2024-11-06 08:21:10,118 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-06 08:21:10,118 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) Word has length 318
[2024-11-06 08:21:10,120 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:21:10,123 INFO  L225             Difference]: With dead ends: 364
[2024-11-06 08:21:10,123 INFO  L226             Difference]: Without dead ends: 217
[2024-11-06 08:21:10,125 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-06 08:21:10,126 INFO  L432           NwaCegarLoop]: 327 mSDtfsCounter, 106 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time
[2024-11-06 08:21:10,126 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 547 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 14 Invalid, 2 Unknown, 0 Unchecked, 8.6s Time]
[2024-11-06 08:21:10,127 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 217 states.
[2024-11-06 08:21:10,159 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 214.
[2024-11-06 08:21:10,160 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 214 states, 160 states have (on average 1.50625) internal successors, (241), 161 states have internal predecessors, (241), 51 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51)
[2024-11-06 08:21:10,163 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 343 transitions.
[2024-11-06 08:21:10,164 INFO  L78                 Accepts]: Start accepts. Automaton has 214 states and 343 transitions. Word has length 318
[2024-11-06 08:21:10,166 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:21:10,166 INFO  L471      AbstractCegarLoop]: Abstraction has 214 states and 343 transitions.
[2024-11-06 08:21:10,166 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49)
[2024-11-06 08:21:10,167 INFO  L276                IsEmpty]: Start isEmpty. Operand 214 states and 343 transitions.
[2024-11-06 08:21:10,172 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 319
[2024-11-06 08:21:10,173 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:21:10,173 INFO  L215           NwaCegarLoop]: trace histogram [49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 08:21:10,220 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
[2024-11-06 08:21:10,377 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
[2024-11-06 08:21:10,378 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:21:10,379 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:21:10,379 INFO  L85        PathProgramCache]: Analyzing trace with hash -2016413017, now seen corresponding path program 1 times
[2024-11-06 08:21:10,380 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:21:10,380 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1239640945]
[2024-11-06 08:21:10,380 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:21:10,381 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
[2024-11-06 08:21:10,381 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:21:10,384 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)
[2024-11-06 08:21:10,385 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
[2024-11-06 08:21:11,574 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:21:11,638 INFO  L255         TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-06 08:21:11,647 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:21:21,113 INFO  L134       CoverageAnalysis]: Checked inductivity of 4704 backedges. 2421 proven. 144 refuted. 0 times theorem prover too weak. 2139 trivial. 0 not checked.
[2024-11-06 08:21:21,113 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 08:21:21,774 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:21:21,774 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1239640945]
[2024-11-06 08:21:21,774 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1239640945] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-06 08:21:21,774 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307774978]
[2024-11-06 08:21:21,775 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:21:21,775 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 08:21:21,775 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 08:21:21,796 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-06 08:21:21,797 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-06 08:21:22,386 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:21:22,486 INFO  L255         TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-06 08:21:22,493 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:21:27,040 INFO  L134       CoverageAnalysis]: Checked inductivity of 4704 backedges. 2394 proven. 75 refuted. 0 times theorem prover too weak. 2235 trivial. 0 not checked.
[2024-11-06 08:21:27,040 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 08:21:27,460 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [307774978] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-06 08:21:27,461 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-06 08:21:27,461 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 8
[2024-11-06 08:21:27,461 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318537020]
[2024-11-06 08:21:27,461 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-06 08:21:27,462 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-06 08:21:27,462 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:21:27,464 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-06 08:21:27,464 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72
[2024-11-06 08:21:27,464 INFO  L87              Difference]: Start difference. First operand 214 states and 343 transitions. Second operand  has 8 states, 8 states have (on average 14.375) internal successors, (115), 8 states have internal predecessors, (115), 3 states have call successors, (73), 3 states have call predecessors, (73), 5 states have return successors, (74), 3 states have call predecessors, (74), 3 states have call successors, (74)
[2024-11-06 08:21:37,872 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:21:41,918 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:21:45,940 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:21:49,966 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:21:53,982 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:21:53,986 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:21:53,986 INFO  L93              Difference]: Finished difference Result 437 states and 693 transitions.
[2024-11-06 08:21:54,153 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2024-11-06 08:21:54,154 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 14.375) internal successors, (115), 8 states have internal predecessors, (115), 3 states have call successors, (73), 3 states have call predecessors, (73), 5 states have return successors, (74), 3 states have call predecessors, (74), 3 states have call successors, (74) Word has length 318
[2024-11-06 08:21:54,155 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:21:54,158 INFO  L225             Difference]: With dead ends: 437
[2024-11-06 08:21:54,159 INFO  L226             Difference]: Without dead ends: 226
[2024-11-06 08:21:54,160 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 718 GetRequests, 708 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132
[2024-11-06 08:21:54,161 INFO  L432           NwaCegarLoop]: 185 mSDtfsCounter, 136 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 17 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.0s IncrementalHoareTripleChecker+Time
[2024-11-06 08:21:54,161 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 596 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 364 Invalid, 5 Unknown, 0 Unchecked, 26.0s Time]
[2024-11-06 08:21:54,162 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 226 states.
[2024-11-06 08:21:54,185 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 222.
[2024-11-06 08:21:54,186 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 222 states, 166 states have (on average 1.4759036144578312) internal successors, (245), 167 states have internal predecessors, (245), 51 states have call successors, (51), 4 states have call predecessors, (51), 4 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51)
[2024-11-06 08:21:54,187 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 347 transitions.
[2024-11-06 08:21:54,188 INFO  L78                 Accepts]: Start accepts. Automaton has 222 states and 347 transitions. Word has length 318
[2024-11-06 08:21:54,193 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:21:54,193 INFO  L471      AbstractCegarLoop]: Abstraction has 222 states and 347 transitions.
[2024-11-06 08:21:54,193 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 14.375) internal successors, (115), 8 states have internal predecessors, (115), 3 states have call successors, (73), 3 states have call predecessors, (73), 5 states have return successors, (74), 3 states have call predecessors, (74), 3 states have call successors, (74)
[2024-11-06 08:21:54,194 INFO  L276                IsEmpty]: Start isEmpty. Operand 222 states and 347 transitions.
[2024-11-06 08:21:54,195 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 320
[2024-11-06 08:21:54,196 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:21:54,196 INFO  L215           NwaCegarLoop]: trace histogram [49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 08:21:54,239 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
[2024-11-06 08:21:54,465 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-11-06 08:21:54,596 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=3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 08:21:54,597 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:21:54,597 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:21:54,598 INFO  L85        PathProgramCache]: Analyzing trace with hash 1956528313, now seen corresponding path program 1 times
[2024-11-06 08:21:54,598 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:21:54,598 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1040696868]
[2024-11-06 08:21:54,599 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:21:54,599 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
[2024-11-06 08:21:54,599 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:21:54,600 INFO  L229       MonitoredProcess]: Starting monitored process 6 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)
[2024-11-06 08:21:54,601 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 (6)] Waiting until timeout for monitored process
[2024-11-06 08:21:55,899 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:21:55,964 INFO  L255         TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-06 08:21:55,970 INFO  L278         TraceCheckSpWp]: Computing forward predicates...