/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 WOLF -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-52.i


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


This is Ultimate 0.2.5-dev-17387ad-m
[2024-11-05 23:37:40,258 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-05 23:37:40,345 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-05 23:37:40,349 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-05 23:37:40,349 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-05 23:37:40,372 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-05 23:37:40,372 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-05 23:37:40,373 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-05 23:37:40,373 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-05 23:37:40,375 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-05 23:37:40,375 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-05 23:37:40,376 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-05 23:37:40,378 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-05 23:37:40,379 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-05 23:37:40,379 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-05 23:37:40,379 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-05 23:37:40,379 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-05 23:37:40,380 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-05 23:37:40,380 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-05 23:37:40,380 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-05 23:37:40,380 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-05 23:37:40,383 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-05 23:37:40,383 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-05 23:37:40,383 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-05 23:37:40,383 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-05 23:37:40,383 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-05 23:37:40,384 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-05 23:37:40,384 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-05 23:37:40,384 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-05 23:37:40,384 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-05 23:37:40,384 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-05 23:37:40,385 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-05 23:37:40,385 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-05 23:37:40,385 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-05 23:37:40,385 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-05 23:37:40,385 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-05 23:37:40,386 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-05 23:37:40,386 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-05 23:37:40,386 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-05 23:37:40,386 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-05 23:37:40,386 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-05 23:37:40,388 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-05 23:37:40,388 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-05 23:37:40,388 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-05 23:37:40,388 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> WOLF
[2024-11-05 23:37:40,605 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-05 23:37:40,632 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-05 23:37:40,635 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-05 23:37:40,636 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-05 23:37:40,637 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-05 23:37:40,639 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-52.i
[2024-11-05 23:37:42,166 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-05 23:37:42,356 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-05 23:37:42,356 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-52.i
[2024-11-05 23:37:42,364 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eaec9a57c/7b43a5a4853f42a2bf910ba040791492/FLAGb5bca5ae1
[2024-11-05 23:37:42,378 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eaec9a57c/7b43a5a4853f42a2bf910ba040791492
[2024-11-05 23:37:42,380 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-05 23:37:42,382 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-05 23:37:42,383 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-05 23:37:42,383 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-05 23:37:42,389 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-05 23:37:42,389 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 11:37:42" (1/1) ...
[2024-11-05 23:37:42,390 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cf2bd5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:37:42, skipping insertion in model container
[2024-11-05 23:37:42,390 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 11:37:42" (1/1) ...
[2024-11-05 23:37:42,411 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-05 23:37:42,594 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_amount25_file-52.i[915,928]
[2024-11-05 23:37:42,642 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-05 23:37:42,657 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-05 23:37:42,670 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_amount25_file-52.i[915,928]
[2024-11-05 23:37:42,689 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-05 23:37:42,714 INFO  L204         MainTranslator]: Completed translation
[2024-11-05 23:37:42,714 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:37:42 WrapperNode
[2024-11-05 23:37:42,714 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-05 23:37:42,718 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-05 23:37:42,718 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-05 23:37:42,718 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-05 23:37:42,726 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:37:42" (1/1) ...
[2024-11-05 23:37:42,739 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:37:42" (1/1) ...
[2024-11-05 23:37:42,764 INFO  L138                Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 107
[2024-11-05 23:37:42,766 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-05 23:37:42,767 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-05 23:37:42,767 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-05 23:37:42,767 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-05 23:37:42,776 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:37:42" (1/1) ...
[2024-11-05 23:37:42,776 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:37:42" (1/1) ...
[2024-11-05 23:37:42,779 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:37:42" (1/1) ...
[2024-11-05 23:37:42,793 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].
[2024-11-05 23:37:42,794 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:37:42" (1/1) ...
[2024-11-05 23:37:42,794 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:37:42" (1/1) ...
[2024-11-05 23:37:42,802 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:37:42" (1/1) ...
[2024-11-05 23:37:42,805 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:37:42" (1/1) ...
[2024-11-05 23:37:42,809 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:37:42" (1/1) ...
[2024-11-05 23:37:42,810 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:37:42" (1/1) ...
[2024-11-05 23:37:42,813 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-05 23:37:42,815 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-05 23:37:42,815 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-05 23:37:42,815 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-05 23:37:42,816 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:37:42" (1/1) ...
[2024-11-05 23:37:42,822 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-05 23:37:42,836 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-05 23:37:42,858 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)
[2024-11-05 23:37:42,869 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
[2024-11-05 23:37:42,895 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-05 23:37:42,896 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-05 23:37:42,896 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-05 23:37:42,896 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-05 23:37:42,896 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-05 23:37:42,898 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-05 23:37:42,986 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-05 23:37:42,988 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-05 23:37:43,297 INFO  L?                        ?]: Removed 10 outVars from TransFormulas that were not future-live.
[2024-11-05 23:37:43,298 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-05 23:37:43,314 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-05 23:37:43,314 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-05 23:37:43,315 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 11:37:43 BoogieIcfgContainer
[2024-11-05 23:37:43,315 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-05 23:37:43,321 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-05 23:37:43,321 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-05 23:37:43,326 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-05 23:37:43,326 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 11:37:42" (1/3) ...
[2024-11-05 23:37:43,327 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64076974 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 11:37:43, skipping insertion in model container
[2024-11-05 23:37:43,327 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:37:42" (2/3) ...
[2024-11-05 23:37:43,328 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64076974 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 11:37:43, skipping insertion in model container
[2024-11-05 23:37:43,328 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 11:37:43" (3/3) ...
[2024-11-05 23:37:43,330 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-52.i
[2024-11-05 23:37:43,347 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-05 23:37:43,348 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-05 23:37:43,422 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-05 23:37:43,431 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;@7ab96b21, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-05 23:37:43,432 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-05 23:37:43,437 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 52 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 32 states have internal predecessors, (40), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-05 23:37:43,451 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 114
[2024-11-05 23:37:43,451 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 23:37:43,452 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-05 23:37:43,453 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 23:37:43,459 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 23:37:43,460 INFO  L85        PathProgramCache]: Analyzing trace with hash -1915705130, now seen corresponding path program 1 times
[2024-11-05 23:37:43,475 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-05 23:37:43,475 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [907545765]
[2024-11-05 23:37:43,476 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 23:37:43,477 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
[2024-11-05 23:37:43,477 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 23:37:43,480 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)
[2024-11-05 23:37:43,483 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
[2024-11-05 23:37:43,670 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 23:37:43,676 INFO  L255         TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-05 23:37:43,691 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 23:37:44,187 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 326 proven. 36 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked.
[2024-11-05 23:37:44,187 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-05 23:37:44,620 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 30 proven. 21 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked.
[2024-11-05 23:37:44,621 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-05 23:37:44,621 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [907545765]
[2024-11-05 23:37:44,622 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [907545765] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-05 23:37:44,622 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-05 23:37:44,623 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 15
[2024-11-05 23:37:44,624 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557136670]
[2024-11-05 23:37:44,625 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-05 23:37:44,629 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2024-11-05 23:37:44,630 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-05 23:37:44,652 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2024-11-05 23:37:44,653 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210
[2024-11-05 23:37:44,655 INFO  L87              Difference]: Start difference. First operand  has 52 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 32 states have internal predecessors, (40), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand  has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 14 states have internal predecessors, (46), 4 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26)
[2024-11-05 23:37:45,935 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 23:37:45,936 INFO  L93              Difference]: Finished difference Result 207 states and 359 transitions.
[2024-11-05 23:37:45,937 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. 
[2024-11-05 23:37:45,939 INFO  L78                 Accepts]: Start accepts. Automaton has  has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 14 states have internal predecessors, (46), 4 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 113
[2024-11-05 23:37:45,939 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 23:37:45,947 INFO  L225             Difference]: With dead ends: 207
[2024-11-05 23:37:45,947 INFO  L226             Difference]: Without dead ends: 158
[2024-11-05 23:37:45,951 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=343, Invalid=989, Unknown=0, NotChecked=0, Total=1332
[2024-11-05 23:37:45,954 INFO  L432           NwaCegarLoop]: 80 mSDtfsCounter, 220 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 233 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-05 23:37:45,955 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 267 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [233 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-05 23:37:45,972 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 158 states.
[2024-11-05 23:37:46,004 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 59.
[2024-11-05 23:37:46,006 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 59 states, 37 states have (on average 1.162162162162162) internal successors, (43), 37 states have internal predecessors, (43), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-05 23:37:46,007 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 79 transitions.
[2024-11-05 23:37:46,011 INFO  L78                 Accepts]: Start accepts. Automaton has 59 states and 79 transitions. Word has length 113
[2024-11-05 23:37:46,012 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 23:37:46,012 INFO  L471      AbstractCegarLoop]: Abstraction has 59 states and 79 transitions.
[2024-11-05 23:37:46,012 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 14 states have internal predecessors, (46), 4 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26)
[2024-11-05 23:37:46,013 INFO  L276                IsEmpty]: Start isEmpty. Operand 59 states and 79 transitions.
[2024-11-05 23:37:46,016 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 114
[2024-11-05 23:37:46,017 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 23:37:46,017 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-05 23:37:46,025 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
[2024-11-05 23:37:46,221 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
[2024-11-05 23:37:46,223 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 23:37:46,225 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 23:37:46,225 INFO  L85        PathProgramCache]: Analyzing trace with hash -1106358504, now seen corresponding path program 1 times
[2024-11-05 23:37:46,226 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-05 23:37:46,226 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [323720977]
[2024-11-05 23:37:46,226 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 23:37:46,227 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
[2024-11-05 23:37:46,227 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 23:37:46,231 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)
[2024-11-05 23:37:46,233 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
[2024-11-05 23:37:46,355 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 23:37:46,367 INFO  L255         TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-11-05 23:37:46,377 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 23:37:56,560 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked.
[2024-11-05 23:37:56,561 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-05 23:37:56,561 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-05 23:37:56,561 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [323720977]
[2024-11-05 23:37:56,561 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [323720977] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-05 23:37:56,561 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-05 23:37:56,561 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-11-05 23:37:56,562 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205254554]
[2024-11-05 23:37:56,562 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-05 23:37:56,564 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-05 23:37:56,564 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-05 23:37:56,565 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-05 23:37:56,565 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2024-11-05 23:37:56,565 INFO  L87              Difference]: Start difference. First operand 59 states and 79 transitions. Second operand  has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)
[2024-11-05 23:37:57,039 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 23:37:57,039 INFO  L93              Difference]: Finished difference Result 87 states and 110 transitions.
[2024-11-05 23:37:57,041 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-05 23:37:57,041 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 113
[2024-11-05 23:37:57,042 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 23:37:57,044 INFO  L225             Difference]: With dead ends: 87
[2024-11-05 23:37:57,044 INFO  L226             Difference]: Without dead ends: 85
[2024-11-05 23:37:57,044 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90
[2024-11-05 23:37:57,046 INFO  L432           NwaCegarLoop]: 71 mSDtfsCounter, 36 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-05 23:37:57,046 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 277 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-05 23:37:57,047 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 85 states.
[2024-11-05 23:37:57,061 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 64.
[2024-11-05 23:37:57,061 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 64 states, 42 states have (on average 1.1666666666666667) internal successors, (49), 42 states have internal predecessors, (49), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-05 23:37:57,062 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 85 transitions.
[2024-11-05 23:37:57,063 INFO  L78                 Accepts]: Start accepts. Automaton has 64 states and 85 transitions. Word has length 113
[2024-11-05 23:37:57,063 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 23:37:57,064 INFO  L471      AbstractCegarLoop]: Abstraction has 64 states and 85 transitions.
[2024-11-05 23:37:57,064 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)
[2024-11-05 23:37:57,064 INFO  L276                IsEmpty]: Start isEmpty. Operand 64 states and 85 transitions.
[2024-11-05 23:37:57,065 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 114
[2024-11-05 23:37:57,066 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 23:37:57,066 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-05 23:37:57,074 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
[2024-11-05 23:37:57,269 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
[2024-11-05 23:37:57,270 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 23:37:57,271 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 23:37:57,271 INFO  L85        PathProgramCache]: Analyzing trace with hash 668648858, now seen corresponding path program 1 times
[2024-11-05 23:37:57,271 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-05 23:37:57,272 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [210149621]
[2024-11-05 23:37:57,272 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 23:37:57,272 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
[2024-11-05 23:37:57,272 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 23:37:57,276 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)
[2024-11-05 23:37:57,277 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
[2024-11-05 23:37:57,393 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 23:37:57,399 INFO  L255         TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-11-05 23:37:57,413 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 23:38:04,620 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked.
[2024-11-05 23:38:04,620 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-05 23:38:04,620 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-05 23:38:04,620 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [210149621]
[2024-11-05 23:38:04,621 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [210149621] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-05 23:38:04,621 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-05 23:38:04,621 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-11-05 23:38:04,621 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219546455]
[2024-11-05 23:38:04,621 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-05 23:38:04,622 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-05 23:38:04,622 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-05 23:38:04,624 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-05 23:38:04,624 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2024-11-05 23:38:04,624 INFO  L87              Difference]: Start difference. First operand 64 states and 85 transitions. Second operand  has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)
[2024-11-05 23:38:05,130 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 23:38:05,130 INFO  L93              Difference]: Finished difference Result 90 states and 113 transitions.
[2024-11-05 23:38:05,135 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-05 23:38:05,135 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 113
[2024-11-05 23:38:05,136 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 23:38:05,137 INFO  L225             Difference]: With dead ends: 90
[2024-11-05 23:38:05,137 INFO  L226             Difference]: Without dead ends: 88
[2024-11-05 23:38:05,137 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90
[2024-11-05 23:38:05,138 INFO  L432           NwaCegarLoop]: 80 mSDtfsCounter, 33 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-05 23:38:05,139 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 331 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-05 23:38:05,139 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 88 states.
[2024-11-05 23:38:05,155 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 62.
[2024-11-05 23:38:05,156 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 62 states, 40 states have (on average 1.15) internal successors, (46), 40 states have internal predecessors, (46), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-05 23:38:05,157 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 82 transitions.
[2024-11-05 23:38:05,158 INFO  L78                 Accepts]: Start accepts. Automaton has 62 states and 82 transitions. Word has length 113
[2024-11-05 23:38:05,158 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 23:38:05,158 INFO  L471      AbstractCegarLoop]: Abstraction has 62 states and 82 transitions.
[2024-11-05 23:38:05,158 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)
[2024-11-05 23:38:05,159 INFO  L276                IsEmpty]: Start isEmpty. Operand 62 states and 82 transitions.
[2024-11-05 23:38:05,160 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 115
[2024-11-05 23:38:05,160 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 23:38:05,160 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-05 23:38:05,165 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
[2024-11-05 23:38:05,363 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
[2024-11-05 23:38:05,364 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 23:38:05,365 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 23:38:05,365 INFO  L85        PathProgramCache]: Analyzing trace with hash 508969851, now seen corresponding path program 1 times
[2024-11-05 23:38:05,365 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-05 23:38:05,365 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [176140769]
[2024-11-05 23:38:05,366 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 23:38:05,366 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
[2024-11-05 23:38:05,366 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 23:38:05,367 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)
[2024-11-05 23:38:05,368 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
[2024-11-05 23:38:05,442 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 23:38:05,444 INFO  L255         TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 17 conjuncts are in the unsatisfiable core
[2024-11-05 23:38:05,448 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 23:38:12,337 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 326 proven. 36 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked.
[2024-11-05 23:38:12,337 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-05 23:38:34,659 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked.
[2024-11-05 23:38:34,659 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-05 23:38:34,660 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [176140769]
[2024-11-05 23:38:34,660 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [176140769] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-05 23:38:34,660 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-05 23:38:34,660 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18
[2024-11-05 23:38:34,660 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055994354]
[2024-11-05 23:38:34,660 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-05 23:38:34,661 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-05 23:38:34,661 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-05 23:38:34,662 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-05 23:38:34,662 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306
[2024-11-05 23:38:34,662 INFO  L87              Difference]: Start difference. First operand 62 states and 82 transitions. Second operand  has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)
[2024-11-05 23:38:45,923 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 23:38:45,924 INFO  L93              Difference]: Finished difference Result 95 states and 118 transitions.
[2024-11-05 23:38:45,927 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-05 23:38:45,927 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 114
[2024-11-05 23:38:45,928 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 23:38:45,930 INFO  L225             Difference]: With dead ends: 95
[2024-11-05 23:38:45,930 INFO  L226             Difference]: Without dead ends: 93
[2024-11-05 23:38:45,930 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 11.5s TimeCoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380
[2024-11-05 23:38:45,931 INFO  L432           NwaCegarLoop]: 71 mSDtfsCounter, 33 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time
[2024-11-05 23:38:45,932 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 315 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time]
[2024-11-05 23:38:45,933 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 93 states.
[2024-11-05 23:38:45,942 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 65.
[2024-11-05 23:38:45,942 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 65 states, 43 states have (on average 1.1627906976744187) internal successors, (50), 43 states have internal predecessors, (50), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-05 23:38:45,943 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 86 transitions.
[2024-11-05 23:38:45,943 INFO  L78                 Accepts]: Start accepts. Automaton has 65 states and 86 transitions. Word has length 114
[2024-11-05 23:38:45,944 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 23:38:45,944 INFO  L471      AbstractCegarLoop]: Abstraction has 65 states and 86 transitions.
[2024-11-05 23:38:45,944 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)
[2024-11-05 23:38:45,944 INFO  L276                IsEmpty]: Start isEmpty. Operand 65 states and 86 transitions.
[2024-11-05 23:38:45,946 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 115
[2024-11-05 23:38:45,946 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 23:38:45,946 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-05 23:38:45,951 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2024-11-05 23:38:46,146 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
[2024-11-05 23:38:46,147 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 23:38:46,147 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 23:38:46,147 INFO  L85        PathProgramCache]: Analyzing trace with hash 507122809, now seen corresponding path program 1 times
[2024-11-05 23:38:46,148 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-05 23:38:46,148 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1769673409]
[2024-11-05 23:38:46,148 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 23:38:46,148 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
[2024-11-05 23:38:46,149 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 23:38:46,150 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)
[2024-11-05 23:38:46,152 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
[2024-11-05 23:38:46,221 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 23:38:46,223 INFO  L255         TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 17 conjuncts are in the unsatisfiable core
[2024-11-05 23:38:46,226 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 23:38:57,212 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 326 proven. 36 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked.
[2024-11-05 23:38:57,212 INFO  L311         TraceCheckSpWp]: Computing backward predicates...