/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-96.i


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


This is Ultimate 0.2.5-dev-17387ad-m
[2024-11-06 09:07:48,812 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-06 09:07:48,869 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 09:07:48,874 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-06 09:07:48,875 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-06 09:07:48,900 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-06 09:07:48,900 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-06 09:07:48,901 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-06 09:07:48,901 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-06 09:07:48,901 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-06 09:07:48,901 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-06 09:07:48,902 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-06 09:07:48,902 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-06 09:07:48,902 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-06 09:07:48,903 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-06 09:07:48,903 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-06 09:07:48,903 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-06 09:07:48,903 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-06 09:07:48,903 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-06 09:07:48,904 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-06 09:07:48,904 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-06 09:07:48,905 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-06 09:07:48,905 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-06 09:07:48,905 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-06 09:07:48,905 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-06 09:07:48,905 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-06 09:07:48,905 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-06 09:07:48,905 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-06 09:07:48,906 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-06 09:07:48,906 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-06 09:07:48,906 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-06 09:07:48,906 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-06 09:07:48,906 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-06 09:07:48,906 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-06 09:07:48,906 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 09:07:48,907 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-06 09:07:48,907 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-06 09:07:48,907 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-06 09:07:48,907 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-06 09:07:48,907 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-06 09:07:48,907 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-06 09:07:48,908 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-06 09:07:48,908 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-06 09:07:48,908 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-06 09:07:48,909 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX
[2024-11-06 09:07:49,085 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-06 09:07:49,102 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-06 09:07:49,104 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-06 09:07:49,105 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-06 09:07:49,105 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-06 09:07:49,106 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-96.i
[2024-11-06 09:07:50,336 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-06 09:07:50,494 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-06 09:07:50,494 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-96.i
[2024-11-06 09:07:50,504 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/955266959/6048b041e67944c99afbbfa7796f41d6/FLAGecad9479a
[2024-11-06 09:07:50,890 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/955266959/6048b041e67944c99afbbfa7796f41d6
[2024-11-06 09:07:50,892 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-06 09:07:50,893 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-06 09:07:50,894 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-06 09:07:50,894 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-06 09:07:50,898 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-06 09:07:50,899 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:07:50" (1/1) ...
[2024-11-06 09:07:50,900 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@257a974a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:50, skipping insertion in model container
[2024-11-06 09:07:50,900 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:07:50" (1/1) ...
[2024-11-06 09:07:50,920 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-06 09:07:51,047 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-96.i[915,928]
[2024-11-06 09:07:51,099 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 09:07:51,115 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-06 09:07:51,123 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-96.i[915,928]
[2024-11-06 09:07:51,152 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 09:07:51,167 INFO  L204         MainTranslator]: Completed translation
[2024-11-06 09:07:51,167 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:51 WrapperNode
[2024-11-06 09:07:51,167 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-06 09:07:51,168 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-06 09:07:51,168 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-06 09:07:51,169 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-06 09:07:51,174 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:51" (1/1) ...
[2024-11-06 09:07:51,182 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:51" (1/1) ...
[2024-11-06 09:07:51,202 INFO  L138                Inliner]: procedures = 27, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 153
[2024-11-06 09:07:51,202 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-06 09:07:51,203 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-06 09:07:51,203 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-06 09:07:51,203 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-06 09:07:51,211 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:51" (1/1) ...
[2024-11-06 09:07:51,211 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:51" (1/1) ...
[2024-11-06 09:07:51,214 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:51" (1/1) ...
[2024-11-06 09:07:51,222 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 09:07:51,223 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:51" (1/1) ...
[2024-11-06 09:07:51,223 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:51" (1/1) ...
[2024-11-06 09:07:51,230 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:51" (1/1) ...
[2024-11-06 09:07:51,232 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:51" (1/1) ...
[2024-11-06 09:07:51,234 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:51" (1/1) ...
[2024-11-06 09:07:51,235 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:51" (1/1) ...
[2024-11-06 09:07:51,237 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-06 09:07:51,238 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-06 09:07:51,238 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-06 09:07:51,238 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-06 09:07:51,238 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:51" (1/1) ...
[2024-11-06 09:07:51,246 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 09:07:51,254 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 09:07:51,271 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 09:07:51,273 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 09:07:51,292 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-06 09:07:51,293 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-06 09:07:51,293 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-06 09:07:51,293 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-06 09:07:51,293 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-06 09:07:51,293 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-06 09:07:51,371 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-06 09:07:51,373 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-06 09:07:53,261 INFO  L?                        ?]: Removed 10 outVars from TransFormulas that were not future-live.
[2024-11-06 09:07:53,261 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-06 09:07:53,270 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-06 09:07:53,270 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-06 09:07:53,270 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:07:53 BoogieIcfgContainer
[2024-11-06 09:07:53,270 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-06 09:07:53,272 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-06 09:07:53,272 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-06 09:07:53,276 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-06 09:07:53,276 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:07:50" (1/3) ...
[2024-11-06 09:07:53,276 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1004e352 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:07:53, skipping insertion in model container
[2024-11-06 09:07:53,277 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:51" (2/3) ...
[2024-11-06 09:07:53,277 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1004e352 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:07:53, skipping insertion in model container
[2024-11-06 09:07:53,277 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:07:53" (3/3) ...
[2024-11-06 09:07:53,278 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-96.i
[2024-11-06 09:07:53,296 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-06 09:07:53,297 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-06 09:07:53,364 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-06 09:07:53,370 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;@b663f27, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-06 09:07:53,371 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-06 09:07:53,374 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 73 states, 43 states have (on average 1.3255813953488371) internal successors, (57), 44 states have internal predecessors, (57), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27)
[2024-11-06 09:07:53,385 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 168
[2024-11-06 09:07:53,385 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 09:07:53,387 INFO  L215           NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 09:07:53,387 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 09:07:53,392 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 09:07:53,392 INFO  L85        PathProgramCache]: Analyzing trace with hash 2110557727, now seen corresponding path program 1 times
[2024-11-06 09:07:53,404 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 09:07:53,404 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [121576332]
[2024-11-06 09:07:53,405 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 09:07:53,405 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 09:07:53,405 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 09:07:53,408 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 09:07:53,409 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 09:07:53,674 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 09:07:53,682 INFO  L255         TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-06 09:07:53,693 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 09:07:53,728 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 584 proven. 0 refuted. 0 times theorem prover too weak. 820 trivial. 0 not checked.
[2024-11-06 09:07:53,728 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 09:07:53,729 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 09:07:53,729 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [121576332]
[2024-11-06 09:07:53,729 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [121576332] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 09:07:53,729 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 09:07:53,730 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-06 09:07:53,731 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696867569]
[2024-11-06 09:07:53,733 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 09:07:53,736 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-06 09:07:53,736 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 09:07:53,750 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-06 09:07:53,751 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-06 09:07:53,752 INFO  L87              Difference]: Start difference. First operand  has 73 states, 43 states have (on average 1.3255813953488371) internal successors, (57), 44 states have internal predecessors, (57), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand  has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27)
[2024-11-06 09:07:53,774 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 09:07:53,774 INFO  L93              Difference]: Finished difference Result 136 states and 237 transitions.
[2024-11-06 09:07:53,775 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-06 09:07:53,776 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 167
[2024-11-06 09:07:53,776 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 09:07:53,780 INFO  L225             Difference]: With dead ends: 136
[2024-11-06 09:07:53,780 INFO  L226             Difference]: Without dead ends: 66
[2024-11-06 09:07:53,783 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 166 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 09:07:53,785 INFO  L432           NwaCegarLoop]: 97 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, 97 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 09:07:53,786 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-06 09:07:53,796 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 66 states.
[2024-11-06 09:07:53,817 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66.
[2024-11-06 09:07:53,818 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 66 states, 37 states have (on average 1.162162162162162) internal successors, (43), 37 states have internal predecessors, (43), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27)
[2024-11-06 09:07:53,819 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 97 transitions.
[2024-11-06 09:07:53,821 INFO  L78                 Accepts]: Start accepts. Automaton has 66 states and 97 transitions. Word has length 167
[2024-11-06 09:07:53,821 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 09:07:53,821 INFO  L471      AbstractCegarLoop]: Abstraction has 66 states and 97 transitions.
[2024-11-06 09:07:53,821 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27)
[2024-11-06 09:07:53,821 INFO  L276                IsEmpty]: Start isEmpty. Operand 66 states and 97 transitions.
[2024-11-06 09:07:53,823 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 168
[2024-11-06 09:07:53,823 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 09:07:53,824 INFO  L215           NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 09:07:53,833 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 09:07:54,024 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 09:07:54,025 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 09:07:54,025 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 09:07:54,026 INFO  L85        PathProgramCache]: Analyzing trace with hash 296320473, now seen corresponding path program 1 times
[2024-11-06 09:07:54,026 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 09:07:54,026 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1207215984]
[2024-11-06 09:07:54,026 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 09:07:54,026 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 09:07:54,027 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 09:07:54,028 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 09:07:54,029 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 09:07:54,242 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 09:07:54,250 INFO  L255         TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-06 09:07:54,259 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 09:07:54,689 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked.
[2024-11-06 09:07:54,690 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 09:07:54,690 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 09:07:54,690 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1207215984]
[2024-11-06 09:07:54,692 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1207215984] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 09:07:54,692 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 09:07:54,692 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-06 09:07:54,692 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096003569]
[2024-11-06 09:07:54,693 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 09:07:54,694 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-06 09:07:54,694 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 09:07:54,694 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-06 09:07:54,695 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-06 09:07:54,695 INFO  L87              Difference]: Start difference. First operand 66 states and 97 transitions. Second operand  has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27)
[2024-11-06 09:07:57,616 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 09:07:57,617 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 09:07:57,617 INFO  L93              Difference]: Finished difference Result 193 states and 286 transitions.
[2024-11-06 09:07:57,635 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-06 09:07:57,635 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 167
[2024-11-06 09:07:57,636 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 09:07:57,638 INFO  L225             Difference]: With dead ends: 193
[2024-11-06 09:07:57,638 INFO  L226             Difference]: Without dead ends: 130
[2024-11-06 09:07:57,639 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-06 09:07:57,640 INFO  L432           NwaCegarLoop]: 94 mSDtfsCounter, 49 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time
[2024-11-06 09:07:57,640 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 271 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time]
[2024-11-06 09:07:57,641 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 130 states.
[2024-11-06 09:07:57,659 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 115.
[2024-11-06 09:07:57,660 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 115 states, 58 states have (on average 1.103448275862069) internal successors, (64), 58 states have internal predecessors, (64), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54)
[2024-11-06 09:07:57,661 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 172 transitions.
[2024-11-06 09:07:57,662 INFO  L78                 Accepts]: Start accepts. Automaton has 115 states and 172 transitions. Word has length 167
[2024-11-06 09:07:57,662 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 09:07:57,663 INFO  L471      AbstractCegarLoop]: Abstraction has 115 states and 172 transitions.
[2024-11-06 09:07:57,663 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27)
[2024-11-06 09:07:57,663 INFO  L276                IsEmpty]: Start isEmpty. Operand 115 states and 172 transitions.
[2024-11-06 09:07:57,664 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 168
[2024-11-06 09:07:57,665 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 09:07:57,665 INFO  L215           NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 09:07:57,677 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 09:07:57,865 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 09:07:57,866 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 09:07:57,866 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 09:07:57,867 INFO  L85        PathProgramCache]: Analyzing trace with hash 554485911, now seen corresponding path program 1 times
[2024-11-06 09:07:57,867 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 09:07:57,867 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1564518048]
[2024-11-06 09:07:57,867 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 09:07:57,868 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 09:07:57,868 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 09:07:57,869 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 09:07:57,870 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 09:07:58,103 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 09:07:58,110 INFO  L255         TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-11-06 09:07:58,114 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 09:07:58,913 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 928 proven. 108 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked.
[2024-11-06 09:07:58,913 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 09:07:59,054 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 09:07:59,055 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1564518048]
[2024-11-06 09:07:59,055 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1564518048] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-06 09:07:59,055 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [30165822]
[2024-11-06 09:07:59,055 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 09:07:59,055 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 09:07:59,056 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 09:07:59,059 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-06 09:07:59,061 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-06 09:07:59,204 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 09:07:59,221 INFO  L255         TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-11-06 09:07:59,227 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 09:07:59,875 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 928 proven. 108 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked.
[2024-11-06 09:07:59,875 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 09:07:59,934 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [30165822] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-06 09:07:59,935 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-06 09:07:59,935 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 12
[2024-11-06 09:07:59,935 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320121850]
[2024-11-06 09:07:59,935 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-06 09:07:59,936 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-06 09:07:59,936 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 09:07:59,936 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-06 09:07:59,937 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2024-11-06 09:07:59,937 INFO  L87              Difference]: Start difference. First operand 115 states and 172 transitions. Second operand  has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 11 states have internal predecessors, (50), 4 states have call successors, (27), 4 states have call predecessors, (27), 6 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27)
[2024-11-06 09:08:02,966 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 09:08:02,966 INFO  L93              Difference]: Finished difference Result 256 states and 354 transitions.
[2024-11-06 09:08:02,967 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. 
[2024-11-06 09:08:02,967 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 11 states have internal predecessors, (50), 4 states have call successors, (27), 4 states have call predecessors, (27), 6 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 167
[2024-11-06 09:08:02,967 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 09:08:02,969 INFO  L225             Difference]: With dead ends: 256
[2024-11-06 09:08:02,969 INFO  L226             Difference]: Without dead ends: 193
[2024-11-06 09:08:02,970 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=182, Invalid=468, Unknown=0, NotChecked=0, Total=650
[2024-11-06 09:08:02,971 INFO  L432           NwaCegarLoop]: 91 mSDtfsCounter, 100 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time
[2024-11-06 09:08:02,972 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 281 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time]
[2024-11-06 09:08:02,972 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 193 states.
[2024-11-06 09:08:02,994 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 184.
[2024-11-06 09:08:02,995 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 184 states, 100 states have (on average 1.07) internal successors, (107), 101 states have internal predecessors, (107), 72 states have call successors, (72), 11 states have call predecessors, (72), 11 states have return successors, (72), 71 states have call predecessors, (72), 72 states have call successors, (72)
[2024-11-06 09:08:02,996 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 251 transitions.
[2024-11-06 09:08:02,997 INFO  L78                 Accepts]: Start accepts. Automaton has 184 states and 251 transitions. Word has length 167
[2024-11-06 09:08:02,997 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 09:08:02,997 INFO  L471      AbstractCegarLoop]: Abstraction has 184 states and 251 transitions.
[2024-11-06 09:08:02,997 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 11 states have internal predecessors, (50), 4 states have call successors, (27), 4 states have call predecessors, (27), 6 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27)
[2024-11-06 09:08:02,998 INFO  L276                IsEmpty]: Start isEmpty. Operand 184 states and 251 transitions.
[2024-11-06 09:08:03,000 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 168
[2024-11-06 09:08:03,000 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 09:08:03,000 INFO  L215           NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 09:08:03,011 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 09:08:03,224 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2024-11-06 09:08:03,401 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 09:08:03,401 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 09:08:03,402 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 09:08:03,402 INFO  L85        PathProgramCache]: Analyzing trace with hash 556332953, now seen corresponding path program 1 times
[2024-11-06 09:08:03,402 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 09:08:03,402 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1128178022]
[2024-11-06 09:08:03,402 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 09:08:03,403 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 09:08:03,403 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 09:08:03,404 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 09:08:03,406 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 (6)] Waiting until timeout for monitored process
[2024-11-06 09:08:03,607 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 09:08:03,615 INFO  L255         TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 35 conjuncts are in the unsatisfiable core
[2024-11-06 09:08:03,622 INFO  L278         TraceCheckSpWp]: Computing forward predicates...