/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_amount50_file-1.i


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


This is Ultimate 0.2.5-dev-17387ad-m
[2024-11-06 08:56:32,171 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-06 08:56:32,243 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 08:56:32,250 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-06 08:56:32,250 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-06 08:56:32,279 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-06 08:56:32,282 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-06 08:56:32,282 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-06 08:56:32,283 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-06 08:56:32,284 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-06 08:56:32,284 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-06 08:56:32,285 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-06 08:56:32,285 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-06 08:56:32,286 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-06 08:56:32,286 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-06 08:56:32,286 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-06 08:56:32,286 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-06 08:56:32,287 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-06 08:56:32,291 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-06 08:56:32,291 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-06 08:56:32,291 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-06 08:56:32,292 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-06 08:56:32,292 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-06 08:56:32,292 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-06 08:56:32,292 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-06 08:56:32,293 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-06 08:56:32,293 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-06 08:56:32,293 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-06 08:56:32,293 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-06 08:56:32,293 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-06 08:56:32,294 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-06 08:56:32,294 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-06 08:56:32,294 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-06 08:56:32,294 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-06 08:56:32,294 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 08:56:32,295 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-06 08:56:32,295 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-06 08:56:32,295 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-06 08:56:32,295 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-06 08:56:32,295 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-06 08:56:32,296 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-06 08:56:32,297 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-06 08:56:32,297 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-06 08:56:32,297 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-06 08:56:32,297 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX
[2024-11-06 08:56:32,557 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-06 08:56:32,583 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-06 08:56:32,588 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-06 08:56:32,589 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-06 08:56:32,590 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-06 08:56:32,591 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-1.i
[2024-11-06 08:56:34,136 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-06 08:56:34,359 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-06 08:56:34,359 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-1.i
[2024-11-06 08:56:34,372 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62bc9014e/7b44bb0f67c349d29c66f1608d496181/FLAG7d953b723
[2024-11-06 08:56:34,390 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62bc9014e/7b44bb0f67c349d29c66f1608d496181
[2024-11-06 08:56:34,393 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-06 08:56:34,395 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-06 08:56:34,398 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-06 08:56:34,398 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-06 08:56:34,403 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-06 08:56:34,404 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:56:34" (1/1) ...
[2024-11-06 08:56:34,405 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b0acd0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:56:34, skipping insertion in model container
[2024-11-06 08:56:34,405 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:56:34" (1/1) ...
[2024-11-06 08:56:34,438 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-06 08:56:34,612 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-1.i[914,927]
[2024-11-06 08:56:34,689 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 08:56:34,707 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-06 08:56:34,722 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-1.i[914,927]
[2024-11-06 08:56:34,762 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 08:56:34,785 INFO  L204         MainTranslator]: Completed translation
[2024-11-06 08:56:34,786 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:56:34 WrapperNode
[2024-11-06 08:56:34,787 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-06 08:56:34,788 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-06 08:56:34,788 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-06 08:56:34,789 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-06 08:56:34,795 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:56:34" (1/1) ...
[2024-11-06 08:56:34,810 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:56:34" (1/1) ...
[2024-11-06 08:56:34,837 INFO  L138                Inliner]: procedures = 27, calls = 36, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 147
[2024-11-06 08:56:34,838 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-06 08:56:34,839 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-06 08:56:34,839 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-06 08:56:34,839 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-06 08:56:34,850 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:56:34" (1/1) ...
[2024-11-06 08:56:34,850 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:56:34" (1/1) ...
[2024-11-06 08:56:34,854 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:56:34" (1/1) ...
[2024-11-06 08:56:34,866 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 08:56:34,870 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:56:34" (1/1) ...
[2024-11-06 08:56:34,871 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:56:34" (1/1) ...
[2024-11-06 08:56:34,885 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:56:34" (1/1) ...
[2024-11-06 08:56:34,889 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:56:34" (1/1) ...
[2024-11-06 08:56:34,891 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:56:34" (1/1) ...
[2024-11-06 08:56:34,892 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:56:34" (1/1) ...
[2024-11-06 08:56:34,896 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-06 08:56:34,901 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-06 08:56:34,901 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-06 08:56:34,901 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-06 08:56:34,902 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:56:34" (1/1) ...
[2024-11-06 08:56:34,915 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 08:56:34,925 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 08:56:34,940 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 08:56:34,943 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 08:56:34,965 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-06 08:56:34,965 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-06 08:56:34,965 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-06 08:56:34,966 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-06 08:56:34,966 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-06 08:56:34,966 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-06 08:56:35,041 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-06 08:56:35,043 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-06 08:56:35,427 INFO  L?                        ?]: Removed 20 outVars from TransFormulas that were not future-live.
[2024-11-06 08:56:35,427 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-06 08:56:35,440 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-06 08:56:35,441 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-06 08:56:35,441 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:56:35 BoogieIcfgContainer
[2024-11-06 08:56:35,441 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-06 08:56:35,443 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-06 08:56:35,444 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-06 08:56:35,447 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-06 08:56:35,447 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:56:34" (1/3) ...
[2024-11-06 08:56:35,448 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31094178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:56:35, skipping insertion in model container
[2024-11-06 08:56:35,448 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:56:34" (2/3) ...
[2024-11-06 08:56:35,448 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31094178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:56:35, skipping insertion in model container
[2024-11-06 08:56:35,448 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:56:35" (3/3) ...
[2024-11-06 08:56:35,449 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-1.i
[2024-11-06 08:56:35,469 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-06 08:56:35,469 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-06 08:56:35,528 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-06 08:56:35,534 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;@73516565, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-06 08:56:35,535 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-06 08:56:35,539 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 68 states, 42 states have (on average 1.3571428571428572) internal successors, (57), 43 states have internal predecessors, (57), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23)
[2024-11-06 08:56:35,567 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 147
[2024-11-06 08:56:35,567 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:56:35,568 INFO  L215           NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:56:35,569 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:56:35,576 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:56:35,576 INFO  L85        PathProgramCache]: Analyzing trace with hash 202946144, now seen corresponding path program 1 times
[2024-11-06 08:56:35,591 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:56:35,592 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [262121543]
[2024-11-06 08:56:35,593 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:56:35,593 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 08:56:35,593 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:56:35,597 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 08:56:35,598 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 08:56:35,861 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:56:35,868 INFO  L255         TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-06 08:56:35,880 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:56:35,922 INFO  L134       CoverageAnalysis]: Checked inductivity of 1012 backedges. 332 proven. 0 refuted. 0 times theorem prover too weak. 680 trivial. 0 not checked.
[2024-11-06 08:56:35,922 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 08:56:35,923 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:56:35,923 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [262121543]
[2024-11-06 08:56:35,923 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [262121543] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 08:56:35,924 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 08:56:35,924 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-06 08:56:35,927 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648248890]
[2024-11-06 08:56:35,928 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 08:56:35,932 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-06 08:56:35,932 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:56:35,951 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-06 08:56:35,951 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-06 08:56:35,953 INFO  L87              Difference]: Start difference. First operand  has 68 states, 42 states have (on average 1.3571428571428572) internal successors, (57), 43 states have internal predecessors, (57), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand  has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23)
[2024-11-06 08:56:35,978 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:56:35,979 INFO  L93              Difference]: Finished difference Result 129 states and 223 transitions.
[2024-11-06 08:56:35,980 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-06 08:56:35,982 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 146
[2024-11-06 08:56:35,982 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:56:35,988 INFO  L225             Difference]: With dead ends: 129
[2024-11-06 08:56:35,989 INFO  L226             Difference]: Without dead ends: 64
[2024-11-06 08:56:35,992 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 145 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 08:56:35,995 INFO  L432           NwaCegarLoop]: 95 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, 95 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 08:56:35,996 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-06 08:56:36,010 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 64 states.
[2024-11-06 08:56:36,034 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64.
[2024-11-06 08:56:36,035 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 64 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 39 states have internal predecessors, (49), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23)
[2024-11-06 08:56:36,037 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 95 transitions.
[2024-11-06 08:56:36,039 INFO  L78                 Accepts]: Start accepts. Automaton has 64 states and 95 transitions. Word has length 146
[2024-11-06 08:56:36,039 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:56:36,039 INFO  L471      AbstractCegarLoop]: Abstraction has 64 states and 95 transitions.
[2024-11-06 08:56:36,039 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23)
[2024-11-06 08:56:36,040 INFO  L276                IsEmpty]: Start isEmpty. Operand 64 states and 95 transitions.
[2024-11-06 08:56:36,044 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 147
[2024-11-06 08:56:36,044 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:56:36,044 INFO  L215           NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:56:36,055 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 08:56:36,245 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 08:56:36,246 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:56:36,247 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:56:36,247 INFO  L85        PathProgramCache]: Analyzing trace with hash -1068424608, now seen corresponding path program 1 times
[2024-11-06 08:56:36,248 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:56:36,248 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1617236221]
[2024-11-06 08:56:36,248 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:56:36,248 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 08:56:36,248 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:56:36,253 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 08:56:36,257 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 08:56:36,482 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:56:36,496 INFO  L255         TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-06 08:56:36,503 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:56:37,000 INFO  L134       CoverageAnalysis]: Checked inductivity of 1012 backedges. 527 proven. 48 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked.
[2024-11-06 08:56:37,000 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 08:56:37,160 INFO  L134       CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked.
[2024-11-06 08:56:37,161 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:56:37,161 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1617236221]
[2024-11-06 08:56:37,161 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1617236221] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-06 08:56:37,162 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-06 08:56:37,162 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11
[2024-11-06 08:56:37,162 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957320772]
[2024-11-06 08:56:37,162 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 08:56:37,164 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-06 08:56:37,164 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:56:37,167 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-06 08:56:37,167 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2024-11-06 08:56:37,167 INFO  L87              Difference]: Start difference. First operand 64 states and 95 transitions. Second operand  has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23)
[2024-11-06 08:56:37,237 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:56:37,238 INFO  L93              Difference]: Finished difference Result 125 states and 187 transitions.
[2024-11-06 08:56:37,241 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-06 08:56:37,242 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 146
[2024-11-06 08:56:37,243 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:56:37,244 INFO  L225             Difference]: With dead ends: 125
[2024-11-06 08:56:37,245 INFO  L226             Difference]: Without dead ends: 64
[2024-11-06 08:56:37,248 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2024-11-06 08:56:37,249 INFO  L432           NwaCegarLoop]: 93 mSDtfsCounter, 0 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-06 08:56:37,250 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 172 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-06 08:56:37,253 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 64 states.
[2024-11-06 08:56:37,268 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64.
[2024-11-06 08:56:37,268 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 64 states, 39 states have (on average 1.2307692307692308) internal successors, (48), 39 states have internal predecessors, (48), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23)
[2024-11-06 08:56:37,270 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 94 transitions.
[2024-11-06 08:56:37,270 INFO  L78                 Accepts]: Start accepts. Automaton has 64 states and 94 transitions. Word has length 146
[2024-11-06 08:56:37,272 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:56:37,272 INFO  L471      AbstractCegarLoop]: Abstraction has 64 states and 94 transitions.
[2024-11-06 08:56:37,273 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23)
[2024-11-06 08:56:37,273 INFO  L276                IsEmpty]: Start isEmpty. Operand 64 states and 94 transitions.
[2024-11-06 08:56:37,275 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 147
[2024-11-06 08:56:37,278 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:56:37,278 INFO  L215           NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:56:37,288 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0
[2024-11-06 08:56:37,479 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 08:56:37,479 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:56:37,480 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:56:37,480 INFO  L85        PathProgramCache]: Analyzing trace with hash -1461451618, now seen corresponding path program 1 times
[2024-11-06 08:56:37,481 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:56:37,481 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [775770733]
[2024-11-06 08:56:37,482 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:56:37,482 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 08:56:37,482 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:56:37,485 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 08:56:37,487 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 08:56:37,689 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:56:37,697 INFO  L255         TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-06 08:56:37,702 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:56:37,950 INFO  L134       CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked.
[2024-11-06 08:56:37,950 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 08:56:37,950 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:56:37,950 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [775770733]
[2024-11-06 08:56:37,951 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [775770733] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 08:56:37,951 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 08:56:37,951 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-06 08:56:37,951 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417279721]
[2024-11-06 08:56:37,951 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 08:56:37,952 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-06 08:56:37,952 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:56:37,955 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-06 08:56:37,955 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-06 08:56:37,956 INFO  L87              Difference]: Start difference. First operand 64 states and 94 transitions. Second operand  has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23)
[2024-11-06 08:56:38,009 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:56:38,010 INFO  L93              Difference]: Finished difference Result 186 states and 276 transitions.
[2024-11-06 08:56:38,013 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-06 08:56:38,013 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 146
[2024-11-06 08:56:38,014 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:56:38,016 INFO  L225             Difference]: With dead ends: 186
[2024-11-06 08:56:38,016 INFO  L226             Difference]: Without dead ends: 125
[2024-11-06 08:56:38,021 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-06 08:56:38,022 INFO  L432           NwaCegarLoop]: 92 mSDtfsCounter, 16 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-06 08:56:38,022 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 178 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-06 08:56:38,023 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 125 states.
[2024-11-06 08:56:38,055 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 123.
[2024-11-06 08:56:38,059 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 123 states, 74 states have (on average 1.2297297297297298) internal successors, (91), 74 states have internal predecessors, (91), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46)
[2024-11-06 08:56:38,062 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 183 transitions.
[2024-11-06 08:56:38,063 INFO  L78                 Accepts]: Start accepts. Automaton has 123 states and 183 transitions. Word has length 146
[2024-11-06 08:56:38,066 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:56:38,067 INFO  L471      AbstractCegarLoop]: Abstraction has 123 states and 183 transitions.
[2024-11-06 08:56:38,067 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23)
[2024-11-06 08:56:38,067 INFO  L276                IsEmpty]: Start isEmpty. Operand 123 states and 183 transitions.
[2024-11-06 08:56:38,070 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 148
[2024-11-06 08:56:38,071 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:56:38,071 INFO  L215           NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:56:38,081 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2024-11-06 08:56:38,275 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 08:56:38,276 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:56:38,277 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:56:38,277 INFO  L85        PathProgramCache]: Analyzing trace with hash 1993141909, now seen corresponding path program 1 times
[2024-11-06 08:56:38,278 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:56:38,278 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1343348041]
[2024-11-06 08:56:38,278 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:56:38,278 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 08:56:38,278 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:56:38,282 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 08:56:38,283 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 08:56:38,448 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:56:38,453 INFO  L255         TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-11-06 08:56:38,456 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:56:38,818 INFO  L134       CoverageAnalysis]: Checked inductivity of 1012 backedges. 527 proven. 48 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked.
[2024-11-06 08:56:38,818 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 08:56:38,959 INFO  L134       CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked.
[2024-11-06 08:56:38,959 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:56:38,960 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1343348041]
[2024-11-06 08:56:38,960 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1343348041] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-06 08:56:38,960 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-06 08:56:38,960 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 13
[2024-11-06 08:56:38,960 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878153202]
[2024-11-06 08:56:38,960 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 08:56:38,961 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-06 08:56:38,961 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:56:38,961 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-06 08:56:38,962 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156
[2024-11-06 08:56:38,962 INFO  L87              Difference]: Start difference. First operand 123 states and 183 transitions. Second operand  has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23)
[2024-11-06 08:56:39,062 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:56:39,062 INFO  L93              Difference]: Finished difference Result 352 states and 526 transitions.
[2024-11-06 08:56:39,065 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-06 08:56:39,065 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 147
[2024-11-06 08:56:39,066 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:56:39,069 INFO  L225             Difference]: With dead ends: 352
[2024-11-06 08:56:39,069 INFO  L226             Difference]: Without dead ends: 232
[2024-11-06 08:56:39,070 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182
[2024-11-06 08:56:39,071 INFO  L432           NwaCegarLoop]: 89 mSDtfsCounter, 81 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-06 08:56:39,071 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 253 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-06 08:56:39,072 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 232 states.
[2024-11-06 08:56:39,097 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 137.
[2024-11-06 08:56:39,097 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 137 states, 88 states have (on average 1.2727272727272727) internal successors, (112), 88 states have internal predecessors, (112), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46)
[2024-11-06 08:56:39,099 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 204 transitions.
[2024-11-06 08:56:39,100 INFO  L78                 Accepts]: Start accepts. Automaton has 137 states and 204 transitions. Word has length 147
[2024-11-06 08:56:39,100 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:56:39,100 INFO  L471      AbstractCegarLoop]: Abstraction has 137 states and 204 transitions.
[2024-11-06 08:56:39,100 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23)
[2024-11-06 08:56:39,101 INFO  L276                IsEmpty]: Start isEmpty. Operand 137 states and 204 transitions.
[2024-11-06 08:56:39,102 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 148
[2024-11-06 08:56:39,102 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:56:39,103 INFO  L215           NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:56:39,112 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 (5)] Ended with exit code 0
[2024-11-06 08:56:39,303 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 08:56:39,304 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:56:39,304 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:56:39,304 INFO  L85        PathProgramCache]: Analyzing trace with hash 1994988951, now seen corresponding path program 1 times
[2024-11-06 08:56:39,305 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:56:39,305 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [447471730]
[2024-11-06 08:56:39,305 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:56:39,305 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 08:56:39,306 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:56:39,309 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-06 08:56:39,311 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2024-11-06 08:56:39,487 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:56:39,496 INFO  L255         TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-11-06 08:56:39,500 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:56:39,782 INFO  L134       CoverageAnalysis]: Checked inductivity of 1012 backedges. 527 proven. 48 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked.
[2024-11-06 08:56:39,782 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 08:56:39,945 INFO  L134       CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked.
[2024-11-06 08:56:39,946 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:56:39,946 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [447471730]
[2024-11-06 08:56:39,946 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [447471730] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-06 08:56:39,946 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-06 08:56:39,947 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12
[2024-11-06 08:56:39,947 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736320288]
[2024-11-06 08:56:39,947 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 08:56:39,948 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-06 08:56:39,948 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:56:39,949 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-06 08:56:39,949 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132
[2024-11-06 08:56:39,949 INFO  L87              Difference]: Start difference. First operand 137 states and 204 transitions. Second operand  has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23)
[2024-11-06 08:56:40,165 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:56:40,166 INFO  L93              Difference]: Finished difference Result 373 states and 554 transitions.
[2024-11-06 08:56:40,166 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-06 08:56:40,166 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 147
[2024-11-06 08:56:40,167 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:56:40,169 INFO  L225             Difference]: With dead ends: 373
[2024-11-06 08:56:40,169 INFO  L226             Difference]: Without dead ends: 239
[2024-11-06 08:56:40,170 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132
[2024-11-06 08:56:40,171 INFO  L432           NwaCegarLoop]: 148 mSDtfsCounter, 118 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-06 08:56:40,171 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 226 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-06 08:56:40,172 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 239 states.
[2024-11-06 08:56:40,190 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 145.
[2024-11-06 08:56:40,190 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 145 states, 96 states have (on average 1.25) internal successors, (120), 96 states have internal predecessors, (120), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46)
[2024-11-06 08:56:40,192 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 212 transitions.
[2024-11-06 08:56:40,192 INFO  L78                 Accepts]: Start accepts. Automaton has 145 states and 212 transitions. Word has length 147
[2024-11-06 08:56:40,193 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:56:40,193 INFO  L471      AbstractCegarLoop]: Abstraction has 145 states and 212 transitions.
[2024-11-06 08:56:40,193 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23)
[2024-11-06 08:56:40,193 INFO  L276                IsEmpty]: Start isEmpty. Operand 145 states and 212 transitions.
[2024-11-06 08:56:40,195 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 148
[2024-11-06 08:56:40,195 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:56:40,195 INFO  L215           NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:56:40,204 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 (6)] Ended with exit code 0
[2024-11-06 08:56:40,399 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /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 08:56:40,400 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:56:40,400 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:56:40,400 INFO  L85        PathProgramCache]: Analyzing trace with hash -1908798377, now seen corresponding path program 1 times
[2024-11-06 08:56:40,401 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:56:40,401 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1115978613]
[2024-11-06 08:56:40,401 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:56:40,401 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 08:56:40,401 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:56:40,405 INFO  L229       MonitoredProcess]: Starting monitored process 7 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 08:56:40,406 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 (7)] Waiting until timeout for monitored process
[2024-11-06 08:56:40,561 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:56:40,567 INFO  L255         TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 28 conjuncts are in the unsatisfiable core
[2024-11-06 08:56:40,574 INFO  L278         TraceCheckSpWp]: Computing forward predicates...