/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_amount100_file-94.i


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


This is Ultimate 0.2.5-dev-17387ad-m
[2024-11-06 08:13:50,994 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-06 08:13:51,045 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 08:13:51,049 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-06 08:13:51,049 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-06 08:13:51,073 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-06 08:13:51,074 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-06 08:13:51,075 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-06 08:13:51,075 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-06 08:13:51,076 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-06 08:13:51,077 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-06 08:13:51,077 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-06 08:13:51,080 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-06 08:13:51,080 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-06 08:13:51,080 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-06 08:13:51,081 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-06 08:13:51,081 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-06 08:13:51,081 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-06 08:13:51,081 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-06 08:13:51,081 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-06 08:13:51,081 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-06 08:13:51,082 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-06 08:13:51,082 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-06 08:13:51,082 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-06 08:13:51,082 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-06 08:13:51,082 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-06 08:13:51,083 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-06 08:13:51,083 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-06 08:13:51,083 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-06 08:13:51,083 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-06 08:13:51,083 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-06 08:13:51,083 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-06 08:13:51,084 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-06 08:13:51,084 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-06 08:13:51,084 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 08:13:51,084 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-06 08:13:51,084 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-06 08:13:51,084 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-06 08:13:51,085 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-06 08:13:51,085 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-06 08:13:51,085 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-06 08:13:51,087 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-06 08:13:51,087 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-06 08:13:51,087 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-06 08:13:51,087 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX
[2024-11-06 08:13:51,315 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-06 08:13:51,346 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-06 08:13:51,348 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-06 08:13:51,352 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-06 08:13:51,356 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-06 08:13:51,357 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-94.i
[2024-11-06 08:13:52,702 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-06 08:13:52,872 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-06 08:13:52,872 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-94.i
[2024-11-06 08:13:52,880 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c470afa5/52422b01240940f6be3057b6ff00afe0/FLAGc4e09b481
[2024-11-06 08:13:52,897 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c470afa5/52422b01240940f6be3057b6ff00afe0
[2024-11-06 08:13:52,899 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-06 08:13:52,901 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-06 08:13:52,904 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-06 08:13:52,905 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-06 08:13:52,910 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-06 08:13:52,911 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:13:52" (1/1) ...
[2024-11-06 08:13:52,911 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23620084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:13:52, skipping insertion in model container
[2024-11-06 08:13:52,911 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:13:52" (1/1) ...
[2024-11-06 08:13:52,946 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-06 08:13:53,085 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]
[2024-11-06 08:13:53,175 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 08:13:53,191 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-06 08:13:53,200 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]
[2024-11-06 08:13:53,234 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 08:13:53,250 INFO  L204         MainTranslator]: Completed translation
[2024-11-06 08:13:53,251 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:13:53 WrapperNode
[2024-11-06 08:13:53,251 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-06 08:13:53,252 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-06 08:13:53,252 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-06 08:13:53,252 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-06 08:13:53,259 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:13:53" (1/1) ...
[2024-11-06 08:13:53,270 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:13:53" (1/1) ...
[2024-11-06 08:13:53,294 INFO  L138                Inliner]: procedures = 27, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 194
[2024-11-06 08:13:53,295 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-06 08:13:53,295 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-06 08:13:53,295 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-06 08:13:53,295 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-06 08:13:53,304 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:13:53" (1/1) ...
[2024-11-06 08:13:53,304 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:13:53" (1/1) ...
[2024-11-06 08:13:53,309 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:13:53" (1/1) ...
[2024-11-06 08:13:53,330 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 08:13:53,330 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:13:53" (1/1) ...
[2024-11-06 08:13:53,330 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:13:53" (1/1) ...
[2024-11-06 08:13:53,339 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:13:53" (1/1) ...
[2024-11-06 08:13:53,341 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:13:53" (1/1) ...
[2024-11-06 08:13:53,343 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:13:53" (1/1) ...
[2024-11-06 08:13:53,348 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:13:53" (1/1) ...
[2024-11-06 08:13:53,351 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-06 08:13:53,352 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-06 08:13:53,352 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-06 08:13:53,352 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-06 08:13:53,352 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:13:53" (1/1) ...
[2024-11-06 08:13:53,360 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 08:13:53,371 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 08:13:53,392 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 08:13:53,406 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 08:13:53,428 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-06 08:13:53,429 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-06 08:13:53,429 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-06 08:13:53,429 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-06 08:13:53,429 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-06 08:13:53,430 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-06 08:13:53,503 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-06 08:13:53,505 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-06 08:13:58,613 INFO  L?                        ?]: Removed 24 outVars from TransFormulas that were not future-live.
[2024-11-06 08:13:58,613 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-06 08:13:58,628 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-06 08:13:58,628 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-06 08:13:58,629 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:13:58 BoogieIcfgContainer
[2024-11-06 08:13:58,629 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-06 08:13:58,630 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-06 08:13:58,630 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-06 08:13:58,632 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-06 08:13:58,632 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:13:52" (1/3) ...
[2024-11-06 08:13:58,633 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@125e1605 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:13:58, skipping insertion in model container
[2024-11-06 08:13:58,633 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:13:53" (2/3) ...
[2024-11-06 08:13:58,633 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@125e1605 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:13:58, skipping insertion in model container
[2024-11-06 08:13:58,633 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:13:58" (3/3) ...
[2024-11-06 08:13:58,634 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-94.i
[2024-11-06 08:13:58,644 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-06 08:13:58,644 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-06 08:13:58,701 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-06 08:13:58,706 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;@3d888473, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-06 08:13:58,707 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-06 08:13:58,710 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)
[2024-11-06 08:13:58,724 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 177
[2024-11-06 08:13:58,725 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:13:58,725 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]
[2024-11-06 08:13:58,726 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:13:58,732 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:13:58,732 INFO  L85        PathProgramCache]: Analyzing trace with hash -1612450964, now seen corresponding path program 1 times
[2024-11-06 08:13:58,745 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:13:58,745 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1516162685]
[2024-11-06 08:13:58,746 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:13:58,746 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 08:13:58,747 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:13:58,750 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 08:13:58,756 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 08:13:59,174 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:13:59,191 INFO  L255         TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-06 08:13:59,208 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:13:59,274 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 472 proven. 0 refuted. 0 times theorem prover too weak. 932 trivial. 0 not checked.
[2024-11-06 08:13:59,275 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 08:13:59,275 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:13:59,275 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1516162685]
[2024-11-06 08:13:59,276 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1516162685] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 08:13:59,276 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 08:13:59,276 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-06 08:13:59,277 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583460453]
[2024-11-06 08:13:59,282 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 08:13:59,288 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-06 08:13:59,288 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:13:59,310 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-06 08:13:59,311 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-06 08:13:59,316 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)
[2024-11-06 08:13:59,366 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:13:59,366 INFO  L93              Difference]: Finished difference Result 165 states and 289 transitions.
[2024-11-06 08:13:59,368 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-06 08:13:59,369 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
[2024-11-06 08:13:59,373 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:13:59,382 INFO  L225             Difference]: With dead ends: 165
[2024-11-06 08:13:59,382 INFO  L226             Difference]: Without dead ends: 82
[2024-11-06 08:13:59,388 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 175 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 08:13:59,392 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
[2024-11-06 08:13:59,393 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]
[2024-11-06 08:13:59,415 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 82 states.
[2024-11-06 08:13:59,457 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82.
[2024-11-06 08:13:59,458 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)
[2024-11-06 08:13:59,459 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 127 transitions.
[2024-11-06 08:13:59,469 INFO  L78                 Accepts]: Start accepts. Automaton has 82 states and 127 transitions. Word has length 176
[2024-11-06 08:13:59,469 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:13:59,469 INFO  L471      AbstractCegarLoop]: Abstraction has 82 states and 127 transitions.
[2024-11-06 08:13:59,470 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)
[2024-11-06 08:13:59,470 INFO  L276                IsEmpty]: Start isEmpty. Operand 82 states and 127 transitions.
[2024-11-06 08:13:59,477 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 177
[2024-11-06 08:13:59,478 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:13:59,478 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]
[2024-11-06 08:13:59,508 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 08:13:59,682 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 08:13:59,683 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:13:59,685 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:13:59,686 INFO  L85        PathProgramCache]: Analyzing trace with hash -1618146258, now seen corresponding path program 1 times
[2024-11-06 08:13:59,688 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:13:59,688 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1502115064]
[2024-11-06 08:13:59,688 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:13:59,688 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 08:13:59,688 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:13:59,691 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 08:13:59,691 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 08:14:00,040 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:14:00,058 INFO  L255         TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-06 08:14:00,068 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:14:01,006 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked.
[2024-11-06 08:14:01,006 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 08:14:01,006 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:14:01,006 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1502115064]
[2024-11-06 08:14:01,007 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1502115064] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 08:14:01,007 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 08:14:01,007 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-06 08:14:01,007 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136558626]
[2024-11-06 08:14:01,007 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 08:14:01,009 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-06 08:14:01,009 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:14:01,012 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-06 08:14:01,012 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-06 08:14:01,012 INFO  L87              Difference]: Start difference. First operand 82 states and 127 transitions. Second operand  has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 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)
[2024-11-06 08:14:03,733 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.54s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:14:07,263 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.41s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:14:10,353 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.98s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:14:10,407 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:14:10,407 INFO  L93              Difference]: Finished difference Result 284 states and 442 transitions.
[2024-11-06 08:14:10,408 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-06 08:14:10,408 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 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
[2024-11-06 08:14:10,409 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:14:10,411 INFO  L225             Difference]: With dead ends: 284
[2024-11-06 08:14:10,411 INFO  L226             Difference]: Without dead ends: 205
[2024-11-06 08:14:10,412 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-06 08:14:10,413 INFO  L432           NwaCegarLoop]: 120 mSDtfsCounter, 174 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s 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, 9.3s IncrementalHoareTripleChecker+Time
[2024-11-06 08:14:10,413 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 359 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time]
[2024-11-06 08:14:10,414 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 205 states.
[2024-11-06 08:14:10,445 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 157.
[2024-11-06 08:14:10,447 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)
[2024-11-06 08:14:10,449 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 242 transitions.
[2024-11-06 08:14:10,449 INFO  L78                 Accepts]: Start accepts. Automaton has 157 states and 242 transitions. Word has length 176
[2024-11-06 08:14:10,450 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:14:10,450 INFO  L471      AbstractCegarLoop]: Abstraction has 157 states and 242 transitions.
[2024-11-06 08:14:10,450 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 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)
[2024-11-06 08:14:10,453 INFO  L276                IsEmpty]: Start isEmpty. Operand 157 states and 242 transitions.
[2024-11-06 08:14:10,455 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 177
[2024-11-06 08:14:10,455 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:14:10,455 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]
[2024-11-06 08:14:10,475 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
[2024-11-06 08:14:10,656 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 08:14:10,657 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:14:10,657 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:14:10,658 INFO  L85        PathProgramCache]: Analyzing trace with hash -1195444432, now seen corresponding path program 1 times
[2024-11-06 08:14:10,658 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:14:10,659 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [859974106]
[2024-11-06 08:14:10,659 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:14:10,662 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 08:14:10,662 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:14:10,664 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 08:14:10,667 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 08:14:11,069 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:14:11,088 INFO  L255         TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-06 08:14:11,093 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:14:11,179 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked.
[2024-11-06 08:14:11,180 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 08:14:11,180 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:14:11,180 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [859974106]
[2024-11-06 08:14:11,180 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [859974106] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 08:14:11,180 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 08:14:11,180 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-06 08:14:11,180 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720186856]
[2024-11-06 08:14:11,180 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 08:14:11,181 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-06 08:14:11,181 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:14:11,182 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-06 08:14:11,182 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-06 08:14:11,182 INFO  L87              Difference]: Start difference. First operand 157 states and 242 transitions. Second operand  has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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)
[2024-11-06 08:14:14,903 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.47s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:14:16,509 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:14:16,754 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:14:16,754 INFO  L93              Difference]: Finished difference Result 346 states and 530 transitions.
[2024-11-06 08:14:16,754 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-06 08:14:16,755 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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
[2024-11-06 08:14:16,755 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:14:16,757 INFO  L225             Difference]: With dead ends: 346
[2024-11-06 08:14:16,757 INFO  L226             Difference]: Without dead ends: 192
[2024-11-06 08:14:16,758 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-06 08:14:16,759 INFO  L432           NwaCegarLoop]: 162 mSDtfsCounter, 77 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time
[2024-11-06 08:14:16,759 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 370 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time]
[2024-11-06 08:14:16,760 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 192 states.
[2024-11-06 08:14:16,774 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 191.
[2024-11-06 08:14:16,775 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)
[2024-11-06 08:14:16,776 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 288 transitions.
[2024-11-06 08:14:16,777 INFO  L78                 Accepts]: Start accepts. Automaton has 191 states and 288 transitions. Word has length 176
[2024-11-06 08:14:16,777 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:14:16,777 INFO  L471      AbstractCegarLoop]: Abstraction has 191 states and 288 transitions.
[2024-11-06 08:14:16,778 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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)
[2024-11-06 08:14:16,778 INFO  L276                IsEmpty]: Start isEmpty. Operand 191 states and 288 transitions.
[2024-11-06 08:14:16,779 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 178
[2024-11-06 08:14:16,779 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:14:16,779 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]
[2024-11-06 08:14:16,796 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
[2024-11-06 08:14:16,983 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
[2024-11-06 08:14:16,984 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:14:16,984 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:14:16,984 INFO  L85        PathProgramCache]: Analyzing trace with hash 346685416, now seen corresponding path program 1 times
[2024-11-06 08:14:16,985 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:14:16,985 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2102473050]
[2024-11-06 08:14:16,985 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:14:16,985 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 08:14:16,985 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:14:16,988 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)
[2024-11-06 08:14:16,990 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
[2024-11-06 08:14:17,508 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:14:17,534 INFO  L255         TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 51 conjuncts are in the unsatisfiable core
[2024-11-06 08:14:17,543 INFO  L278         TraceCheckSpWp]: Computing forward predicates...