/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_floatingpointinfluence_has-floats_file-33.i


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


This is Ultimate 0.2.5-dev-17387ad-m
[2024-11-06 07:40:39,482 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-06 07:40:39,544 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 07:40:39,548 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-06 07:40:39,548 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-06 07:40:39,571 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-06 07:40:39,571 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-06 07:40:39,571 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-06 07:40:39,572 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-06 07:40:39,573 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-06 07:40:39,574 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-06 07:40:39,574 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-06 07:40:39,574 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-06 07:40:39,574 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-06 07:40:39,575 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-06 07:40:39,575 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-06 07:40:39,575 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-06 07:40:39,575 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-06 07:40:39,575 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-06 07:40:39,576 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-06 07:40:39,576 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-06 07:40:39,579 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-06 07:40:39,579 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-06 07:40:39,579 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-06 07:40:39,579 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-06 07:40:39,580 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-06 07:40:39,580 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-06 07:40:39,580 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-06 07:40:39,580 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-06 07:40:39,580 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-06 07:40:39,580 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-06 07:40:39,580 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-06 07:40:39,581 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-06 07:40:39,581 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-06 07:40:39,581 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 07:40:39,581 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-06 07:40:39,581 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-06 07:40:39,581 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-06 07:40:39,581 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-06 07:40:39,582 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-06 07:40:39,582 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-06 07:40:39,583 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-06 07:40:39,583 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-06 07:40:39,583 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-06 07:40:39,583 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX
[2024-11-06 07:40:39,808 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-06 07:40:39,834 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-06 07:40:39,837 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-06 07:40:39,837 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-06 07:40:39,838 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-06 07:40:39,839 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-33.i
[2024-11-06 07:40:41,129 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-06 07:40:41,303 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-06 07:40:41,303 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-33.i
[2024-11-06 07:40:41,310 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64a34991d/bdb98bffe94c4a5c9ba90c1b1734cf10/FLAGe9c8c970f
[2024-11-06 07:40:41,719 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64a34991d/bdb98bffe94c4a5c9ba90c1b1734cf10
[2024-11-06 07:40:41,721 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-06 07:40:41,723 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-06 07:40:41,724 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-06 07:40:41,724 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-06 07:40:41,733 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-06 07:40:41,734 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:40:41" (1/1) ...
[2024-11-06 07:40:41,734 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b0e2086 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:40:41, skipping insertion in model container
[2024-11-06 07:40:41,735 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:40:41" (1/1) ...
[2024-11-06 07:40:41,755 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-06 07:40:41,900 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_floatingpointinfluence_has-floats_file-33.i[917,930]
[2024-11-06 07:40:41,925 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 07:40:41,934 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-06 07:40:41,944 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_floatingpointinfluence_has-floats_file-33.i[917,930]
[2024-11-06 07:40:41,960 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 07:40:41,975 INFO  L204         MainTranslator]: Completed translation
[2024-11-06 07:40:41,976 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:40:41 WrapperNode
[2024-11-06 07:40:41,976 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-06 07:40:41,977 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-06 07:40:41,977 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-06 07:40:41,977 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-06 07:40:41,982 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:40:41" (1/1) ...
[2024-11-06 07:40:41,989 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:40:41" (1/1) ...
[2024-11-06 07:40:42,004 INFO  L138                Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 91
[2024-11-06 07:40:42,004 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-06 07:40:42,004 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-06 07:40:42,004 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-06 07:40:42,005 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-06 07:40:42,012 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:40:41" (1/1) ...
[2024-11-06 07:40:42,013 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:40:41" (1/1) ...
[2024-11-06 07:40:42,015 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:40:41" (1/1) ...
[2024-11-06 07:40:42,035 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 07:40:42,035 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:40:41" (1/1) ...
[2024-11-06 07:40:42,035 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:40:41" (1/1) ...
[2024-11-06 07:40:42,041 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:40:41" (1/1) ...
[2024-11-06 07:40:42,043 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:40:41" (1/1) ...
[2024-11-06 07:40:42,044 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:40:41" (1/1) ...
[2024-11-06 07:40:42,045 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:40:41" (1/1) ...
[2024-11-06 07:40:42,047 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-06 07:40:42,048 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-06 07:40:42,048 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-06 07:40:42,048 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-06 07:40:42,049 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:40:41" (1/1) ...
[2024-11-06 07:40:42,052 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 07:40:42,059 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 07:40:42,072 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 07:40:42,075 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 07:40:42,103 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-06 07:40:42,104 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-06 07:40:42,104 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-06 07:40:42,104 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-06 07:40:42,104 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-06 07:40:42,105 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-06 07:40:42,207 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-06 07:40:42,208 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-06 07:40:42,803 INFO  L?                        ?]: Removed 12 outVars from TransFormulas that were not future-live.
[2024-11-06 07:40:42,803 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-06 07:40:42,812 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-06 07:40:42,813 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-06 07:40:42,813 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:40:42 BoogieIcfgContainer
[2024-11-06 07:40:42,813 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-06 07:40:42,815 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-06 07:40:42,815 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-06 07:40:42,818 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-06 07:40:42,818 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 07:40:41" (1/3) ...
[2024-11-06 07:40:42,818 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@142e1ff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:40:42, skipping insertion in model container
[2024-11-06 07:40:42,819 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:40:41" (2/3) ...
[2024-11-06 07:40:42,819 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@142e1ff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:40:42, skipping insertion in model container
[2024-11-06 07:40:42,819 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:40:42" (3/3) ...
[2024-11-06 07:40:42,820 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-33.i
[2024-11-06 07:40:42,832 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-06 07:40:42,832 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-06 07:40:42,876 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-06 07:40:42,880 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;@52d8c9d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-06 07:40:42,881 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-06 07:40:42,886 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 41 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 30 states have internal predecessors, (39), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9)
[2024-11-06 07:40:42,894 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 67
[2024-11-06 07:40:42,894 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 07:40:42,895 INFO  L215           NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:40:42,895 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 07:40:42,900 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 07:40:42,901 INFO  L85        PathProgramCache]: Analyzing trace with hash -222403520, now seen corresponding path program 1 times
[2024-11-06 07:40:42,912 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 07:40:42,913 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [580320364]
[2024-11-06 07:40:42,913 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 07:40:42,913 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 07:40:42,913 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 07:40:42,916 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 07:40:42,917 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 07:40:43,111 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 07:40:43,117 INFO  L255         TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-06 07:40:43,122 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 07:40:43,144 INFO  L134       CoverageAnalysis]: Checked inductivity of 144 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked.
[2024-11-06 07:40:43,144 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 07:40:43,144 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 07:40:43,145 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [580320364]
[2024-11-06 07:40:43,145 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [580320364] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 07:40:43,145 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 07:40:43,145 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-06 07:40:43,146 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666385832]
[2024-11-06 07:40:43,147 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 07:40:43,150 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-06 07:40:43,150 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 07:40:43,170 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-06 07:40:43,171 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-06 07:40:43,173 INFO  L87              Difference]: Start difference. First operand  has 41 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 30 states have internal predecessors, (39), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9)
[2024-11-06 07:40:43,191 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 07:40:43,192 INFO  L93              Difference]: Finished difference Result 75 states and 117 transitions.
[2024-11-06 07:40:43,193 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-06 07:40:43,194 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 66
[2024-11-06 07:40:43,195 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 07:40:43,201 INFO  L225             Difference]: With dead ends: 75
[2024-11-06 07:40:43,201 INFO  L226             Difference]: Without dead ends: 37
[2024-11-06 07:40:43,203 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 65 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 07:40:43,206 INFO  L432           NwaCegarLoop]: 50 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, 50 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 07:40:43,207 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-06 07:40:43,221 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 37 states.
[2024-11-06 07:40:43,234 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37.
[2024-11-06 07:40:43,236 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 37 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9)
[2024-11-06 07:40:43,238 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 50 transitions.
[2024-11-06 07:40:43,240 INFO  L78                 Accepts]: Start accepts. Automaton has 37 states and 50 transitions. Word has length 66
[2024-11-06 07:40:43,240 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 07:40:43,240 INFO  L471      AbstractCegarLoop]: Abstraction has 37 states and 50 transitions.
[2024-11-06 07:40:43,241 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9)
[2024-11-06 07:40:43,241 INFO  L276                IsEmpty]: Start isEmpty. Operand 37 states and 50 transitions.
[2024-11-06 07:40:43,243 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 67
[2024-11-06 07:40:43,243 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 07:40:43,243 INFO  L215           NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:40:43,251 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2024-11-06 07:40:43,444 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 07:40:43,444 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 07:40:43,445 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 07:40:43,445 INFO  L85        PathProgramCache]: Analyzing trace with hash 1057703046, now seen corresponding path program 1 times
[2024-11-06 07:40:43,445 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 07:40:43,446 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [699657009]
[2024-11-06 07:40:43,446 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 07:40:43,446 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 07:40:43,446 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 07:40:43,450 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 07:40:43,451 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 07:40:43,643 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 07:40:43,649 INFO  L255         TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-06 07:40:43,652 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 07:40:44,113 INFO  L134       CoverageAnalysis]: Checked inductivity of 144 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked.
[2024-11-06 07:40:44,113 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 07:40:44,248 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 07:40:44,248 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [699657009]
[2024-11-06 07:40:44,248 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [699657009] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-06 07:40:44,248 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595501755]
[2024-11-06 07:40:44,249 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 07:40:44,249 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 07:40:44,249 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 07:40:44,267 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-06 07:40:44,271 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-06 07:40:44,359 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 07:40:44,365 INFO  L255         TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-06 07:40:44,368 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 07:40:44,667 INFO  L134       CoverageAnalysis]: Checked inductivity of 144 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked.
[2024-11-06 07:40:44,668 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 07:40:44,750 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595501755] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-06 07:40:44,751 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-06 07:40:44,751 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6
[2024-11-06 07:40:44,751 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737453908]
[2024-11-06 07:40:44,752 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-06 07:40:44,752 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-06 07:40:44,752 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 07:40:44,753 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-06 07:40:44,754 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72
[2024-11-06 07:40:44,754 INFO  L87              Difference]: Start difference. First operand 37 states and 50 transitions. Second operand  has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9)
[2024-11-06 07:40:45,559 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 07:40:45,559 INFO  L93              Difference]: Finished difference Result 112 states and 150 transitions.
[2024-11-06 07:40:45,565 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2024-11-06 07:40:45,565 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 66
[2024-11-06 07:40:45,566 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 07:40:45,567 INFO  L225             Difference]: With dead ends: 112
[2024-11-06 07:40:45,567 INFO  L226             Difference]: Without dead ends: 78
[2024-11-06 07:40:45,568 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240
[2024-11-06 07:40:45,568 INFO  L432           NwaCegarLoop]: 39 mSDtfsCounter, 53 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-06 07:40:45,569 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 173 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-06 07:40:45,569 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 78 states.
[2024-11-06 07:40:45,579 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 63.
[2024-11-06 07:40:45,580 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 63 states, 41 states have (on average 1.146341463414634) internal successors, (47), 41 states have internal predecessors, (47), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-06 07:40:45,581 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 83 transitions.
[2024-11-06 07:40:45,581 INFO  L78                 Accepts]: Start accepts. Automaton has 63 states and 83 transitions. Word has length 66
[2024-11-06 07:40:45,581 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 07:40:45,581 INFO  L471      AbstractCegarLoop]: Abstraction has 63 states and 83 transitions.
[2024-11-06 07:40:45,582 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9)
[2024-11-06 07:40:45,582 INFO  L276                IsEmpty]: Start isEmpty. Operand 63 states and 83 transitions.
[2024-11-06 07:40:45,583 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 67
[2024-11-06 07:40:45,583 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 07:40:45,583 INFO  L215           NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:40:45,593 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 07:40:45,800 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-06 07:40:45,984 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=3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 07:40:45,984 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 07:40:45,985 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 07:40:45,985 INFO  L85        PathProgramCache]: Analyzing trace with hash 664676036, now seen corresponding path program 1 times
[2024-11-06 07:40:45,985 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 07:40:45,985 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1207320182]
[2024-11-06 07:40:45,986 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 07:40:45,986 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 07:40:45,986 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 07:40:45,989 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 07:40:45,990 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 07:40:46,120 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 07:40:46,126 INFO  L255         TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-06 07:40:46,128 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 07:40:46,187 INFO  L134       CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked.
[2024-11-06 07:40:46,187 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 07:40:46,187 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 07:40:46,188 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1207320182]
[2024-11-06 07:40:46,188 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1207320182] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 07:40:46,188 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 07:40:46,188 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-06 07:40:46,188 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603773978]
[2024-11-06 07:40:46,188 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 07:40:46,188 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-06 07:40:46,189 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 07:40:46,189 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-06 07:40:46,189 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-06 07:40:46,189 INFO  L87              Difference]: Start difference. First operand 63 states and 83 transitions. Second operand  has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-06 07:40:46,773 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 07:40:46,774 INFO  L93              Difference]: Finished difference Result 100 states and 135 transitions.
[2024-11-06 07:40:46,774 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-06 07:40:46,774 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 66
[2024-11-06 07:40:46,775 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 07:40:46,776 INFO  L225             Difference]: With dead ends: 100
[2024-11-06 07:40:46,776 INFO  L226             Difference]: Without dead ends: 66
[2024-11-06 07:40:46,777 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-11-06 07:40:46,777 INFO  L432           NwaCegarLoop]: 73 mSDtfsCounter, 41 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-06 07:40:46,778 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 208 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-06 07:40:46,778 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 66 states.
[2024-11-06 07:40:46,789 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 63.
[2024-11-06 07:40:46,790 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 63 states, 41 states have (on average 1.0975609756097562) internal successors, (45), 41 states have internal predecessors, (45), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-06 07:40:46,791 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 81 transitions.
[2024-11-06 07:40:46,792 INFO  L78                 Accepts]: Start accepts. Automaton has 63 states and 81 transitions. Word has length 66
[2024-11-06 07:40:46,792 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 07:40:46,792 INFO  L471      AbstractCegarLoop]: Abstraction has 63 states and 81 transitions.
[2024-11-06 07:40:46,792 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-06 07:40:46,792 INFO  L276                IsEmpty]: Start isEmpty. Operand 63 states and 81 transitions.
[2024-11-06 07:40:46,793 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 67
[2024-11-06 07:40:46,793 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 07:40:46,795 INFO  L215           NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:40:46,808 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 (5)] Forceful destruction successful, exit code 0
[2024-11-06 07:40:46,996 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /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 07:40:46,996 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 07:40:46,997 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 07:40:46,997 INFO  L85        PathProgramCache]: Analyzing trace with hash 723781380, now seen corresponding path program 1 times
[2024-11-06 07:40:46,997 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 07:40:46,997 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2011412037]
[2024-11-06 07:40:46,998 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 07:40:46,998 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 07:40:46,998 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 07:40:47,007 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 07:40:47,010 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 07:40:47,140 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 07:40:47,151 INFO  L255         TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 23 conjuncts are in the unsatisfiable core
[2024-11-06 07:40:47,154 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 07:41:38,235 INFO  L134       CoverageAnalysis]: Checked inductivity of 144 backedges. 86 proven. 39 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked.
[2024-11-06 07:41:38,235 INFO  L311         TraceCheckSpWp]: Computing backward predicates...