/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.trace.refinement.strategy FOX -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-61.i


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


This is Ultimate 0.2.5-dev-17387ad-m
[2024-11-06 08:09:07,718 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-06 08:09:07,798 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-06 08:09:07,806 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-06 08:09:07,806 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-06 08:09:07,838 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-06 08:09:07,839 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-06 08:09:07,839 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-06 08:09:07,840 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-06 08:09:07,841 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-06 08:09:07,841 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-06 08:09:07,842 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-06 08:09:07,842 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-06 08:09:07,843 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-06 08:09:07,843 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-06 08:09:07,845 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-06 08:09:07,846 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-06 08:09:07,848 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-06 08:09:07,848 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-06 08:09:07,848 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-06 08:09:07,848 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-06 08:09:07,849 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-06 08:09:07,850 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-06 08:09:07,850 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-06 08:09:07,850 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-06 08:09:07,850 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-06 08:09:07,850 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-06 08:09:07,851 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-06 08:09:07,851 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-06 08:09:07,851 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-06 08:09:07,851 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-06 08:09:07,852 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-06 08:09:07,852 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-06 08:09:07,852 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-06 08:09:07,852 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 08:09:07,852 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-06 08:09:07,853 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-06 08:09:07,853 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-06 08:09:07,853 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-06 08:09:07,855 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-06 08:09:07,855 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-06 08:09:07,855 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-06 08:09:07,855 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-06 08:09:07,855 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-06 08:09:07,856 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX
[2024-11-06 08:09:08,082 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-06 08:09:08,109 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-06 08:09:08,111 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-06 08:09:08,112 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-06 08:09:08,113 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-06 08:09:08,115 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-61.i
[2024-11-06 08:09:09,598 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-06 08:09:09,834 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-06 08:09:09,836 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-61.i
[2024-11-06 08:09:09,848 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19828432a/da8565d167f0448bab0cb7337d2d64c0/FLAG00a7b7aa1
[2024-11-06 08:09:09,866 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19828432a/da8565d167f0448bab0cb7337d2d64c0
[2024-11-06 08:09:09,869 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-06 08:09:09,870 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-06 08:09:09,872 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-06 08:09:09,872 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-06 08:09:09,878 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-06 08:09:09,879 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:09:09" (1/1) ...
[2024-11-06 08:09:09,880 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21037cc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:09:09, skipping insertion in model container
[2024-11-06 08:09:09,880 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:09:09" (1/1) ...
[2024-11-06 08:09:09,927 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-06 08:09:10,108 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-61.i[916,929]
[2024-11-06 08:09:10,199 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 08:09:10,215 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-06 08:09:10,225 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-61.i[916,929]
[2024-11-06 08:09:10,259 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 08:09:10,279 INFO  L204         MainTranslator]: Completed translation
[2024-11-06 08:09:10,280 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:09:10 WrapperNode
[2024-11-06 08:09:10,280 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-06 08:09:10,281 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-06 08:09:10,281 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-06 08:09:10,281 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-06 08:09:10,287 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:09:10" (1/1) ...
[2024-11-06 08:09:10,307 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:09:10" (1/1) ...
[2024-11-06 08:09:10,346 INFO  L138                Inliner]: procedures = 27, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 192
[2024-11-06 08:09:10,346 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-06 08:09:10,347 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-06 08:09:10,347 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-06 08:09:10,347 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-06 08:09:10,358 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:09:10" (1/1) ...
[2024-11-06 08:09:10,358 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:09:10" (1/1) ...
[2024-11-06 08:09:10,363 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:09:10" (1/1) ...
[2024-11-06 08:09:10,382 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-06 08:09:10,382 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:09:10" (1/1) ...
[2024-11-06 08:09:10,382 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:09:10" (1/1) ...
[2024-11-06 08:09:10,393 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:09:10" (1/1) ...
[2024-11-06 08:09:10,397 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:09:10" (1/1) ...
[2024-11-06 08:09:10,401 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:09:10" (1/1) ...
[2024-11-06 08:09:10,403 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:09:10" (1/1) ...
[2024-11-06 08:09:10,412 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-06 08:09:10,413 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-06 08:09:10,413 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-06 08:09:10,413 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-06 08:09:10,414 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:09:10" (1/1) ...
[2024-11-06 08:09:10,422 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 08:09:10,433 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 08:09:10,451 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-06 08:09:10,455 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-06 08:09:10,483 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-06 08:09:10,484 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-06 08:09:10,485 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-06 08:09:10,485 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-06 08:09:10,485 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-06 08:09:10,485 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-06 08:09:10,588 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-06 08:09:10,591 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-06 08:09:11,272 INFO  L?                        ?]: Removed 28 outVars from TransFormulas that were not future-live.
[2024-11-06 08:09:11,272 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-06 08:09:11,291 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-06 08:09:11,291 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-06 08:09:11,292 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:09:11 BoogieIcfgContainer
[2024-11-06 08:09:11,292 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-06 08:09:11,294 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-06 08:09:11,294 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-06 08:09:11,297 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-06 08:09:11,298 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:09:09" (1/3) ...
[2024-11-06 08:09:11,298 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45c3a8b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:09:11, skipping insertion in model container
[2024-11-06 08:09:11,298 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:09:10" (2/3) ...
[2024-11-06 08:09:11,299 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45c3a8b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:09:11, skipping insertion in model container
[2024-11-06 08:09:11,299 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:09:11" (3/3) ...
[2024-11-06 08:09:11,300 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-61.i
[2024-11-06 08:09:11,317 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-06 08:09:11,318 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-06 08:09:11,384 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-06 08:09:11,390 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;@5628f566, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-06 08:09:11,391 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-06 08:09:11,396 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 85 states, 56 states have (on average 1.4642857142857142) internal successors, (82), 57 states have internal predecessors, (82), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26)
[2024-11-06 08:09:11,410 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 169
[2024-11-06 08:09:11,410 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:09:11,411 INFO  L215           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 08:09:11,411 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:09:11,415 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:09:11,416 INFO  L85        PathProgramCache]: Analyzing trace with hash -522773436, now seen corresponding path program 1 times
[2024-11-06 08:09:11,427 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:09:11,427 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1497792290]
[2024-11-06 08:09:11,427 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:09:11,428 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-06 08:09:11,428 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:09:11,429 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-06 08:09:11,431 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2024-11-06 08:09:11,737 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:09:11,753 INFO  L255         TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-06 08:09:11,765 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:09:12,328 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 435 proven. 60 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked.
[2024-11-06 08:09:12,329 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 08:09:12,744 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 15 proven. 60 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked.
[2024-11-06 08:09:12,745 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:09:12,745 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1497792290]
[2024-11-06 08:09:12,746 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1497792290] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-06 08:09:12,746 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-06 08:09:12,748 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8
[2024-11-06 08:09:12,749 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934877246]
[2024-11-06 08:09:12,751 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-06 08:09:12,755 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-06 08:09:12,756 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:09:12,781 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-06 08:09:12,782 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-11-06 08:09:12,785 INFO  L87              Difference]: Start difference. First operand  has 85 states, 56 states have (on average 1.4642857142857142) internal successors, (82), 57 states have internal predecessors, (82), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand  has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47)
[2024-11-06 08:09:13,803 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:09:13,804 INFO  L93              Difference]: Finished difference Result 255 states and 458 transitions.
[2024-11-06 08:09:13,805 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. 
[2024-11-06 08:09:13,807 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 168
[2024-11-06 08:09:13,808 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:09:13,820 INFO  L225             Difference]: With dead ends: 255
[2024-11-06 08:09:13,820 INFO  L226             Difference]: Without dead ends: 173
[2024-11-06 08:09:13,828 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 328 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342
[2024-11-06 08:09:13,832 INFO  L432           NwaCegarLoop]: 96 mSDtfsCounter, 235 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-06 08:09:13,833 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 312 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-06 08:09:13,846 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 173 states.
[2024-11-06 08:09:13,887 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 90.
[2024-11-06 08:09:13,889 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 90 states, 61 states have (on average 1.3442622950819672) internal successors, (82), 61 states have internal predecessors, (82), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26)
[2024-11-06 08:09:13,892 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 134 transitions.
[2024-11-06 08:09:13,894 INFO  L78                 Accepts]: Start accepts. Automaton has 90 states and 134 transitions. Word has length 168
[2024-11-06 08:09:13,895 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:09:13,895 INFO  L471      AbstractCegarLoop]: Abstraction has 90 states and 134 transitions.
[2024-11-06 08:09:13,896 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47)
[2024-11-06 08:09:13,896 INFO  L276                IsEmpty]: Start isEmpty. Operand 90 states and 134 transitions.
[2024-11-06 08:09:13,899 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 170
[2024-11-06 08:09:13,899 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:09:13,899 INFO  L215           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 08:09:13,911 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2024-11-06 08:09:14,100 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-06 08:09:14,101 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:09:14,101 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:09:14,102 INFO  L85        PathProgramCache]: Analyzing trace with hash 1883338731, now seen corresponding path program 1 times
[2024-11-06 08:09:14,103 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:09:14,103 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1629913486]
[2024-11-06 08:09:14,103 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:09:14,103 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-06 08:09:14,103 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:09:14,105 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-06 08:09:14,106 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2024-11-06 08:09:14,366 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:09:14,378 INFO  L255         TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-06 08:09:14,385 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:09:15,772 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 584 proven. 105 refuted. 0 times theorem prover too weak. 611 trivial. 0 not checked.
[2024-11-06 08:09:15,773 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 08:09:16,028 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:09:16,029 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1629913486]
[2024-11-06 08:09:16,029 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1629913486] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-06 08:09:16,029 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335879518]
[2024-11-06 08:09:16,029 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:09:16,030 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 08:09:16,030 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 08:09:16,047 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-06 08:09:16,050 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-06 08:09:16,238 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:09:16,249 INFO  L255         TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-11-06 08:09:16,255 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:09:18,324 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 333 proven. 9 refuted. 0 times theorem prover too weak. 958 trivial. 0 not checked.
[2024-11-06 08:09:18,325 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 08:09:21,374 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1335879518] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-06 08:09:21,375 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-06 08:09:21,375 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16
[2024-11-06 08:09:21,376 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29496619]
[2024-11-06 08:09:21,376 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-06 08:09:21,377 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2024-11-06 08:09:21,377 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:09:21,379 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2024-11-06 08:09:21,379 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420
[2024-11-06 08:09:21,380 INFO  L87              Difference]: Start difference. First operand 90 states and 134 transitions. Second operand  has 17 states, 17 states have (on average 5.411764705882353) internal successors, (92), 16 states have internal predecessors, (92), 5 states have call successors, (52), 5 states have call predecessors, (52), 8 states have return successors, (52), 5 states have call predecessors, (52), 5 states have call successors, (52)
[2024-11-06 08:09:26,045 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:09:26,046 INFO  L93              Difference]: Finished difference Result 479 states and 698 transitions.
[2024-11-06 08:09:26,067 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. 
[2024-11-06 08:09:26,068 INFO  L78                 Accepts]: Start accepts. Automaton has  has 17 states, 17 states have (on average 5.411764705882353) internal successors, (92), 16 states have internal predecessors, (92), 5 states have call successors, (52), 5 states have call predecessors, (52), 8 states have return successors, (52), 5 states have call predecessors, (52), 5 states have call successors, (52) Word has length 169
[2024-11-06 08:09:26,069 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:09:26,076 INFO  L225             Difference]: With dead ends: 479
[2024-11-06 08:09:26,077 INFO  L226             Difference]: Without dead ends: 392
[2024-11-06 08:09:26,079 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 639 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=535, Invalid=1915, Unknown=0, NotChecked=0, Total=2450
[2024-11-06 08:09:26,083 INFO  L432           NwaCegarLoop]: 119 mSDtfsCounter, 609 mSDsluCounter, 1010 mSDsCounter, 0 mSdLazyCounter, 985 mSolverCounterSat, 236 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 1129 SdHoareTripleChecker+Invalid, 1221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 236 IncrementalHoareTripleChecker+Valid, 985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time
[2024-11-06 08:09:26,084 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [609 Valid, 1129 Invalid, 1221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [236 Valid, 985 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time]
[2024-11-06 08:09:26,086 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 392 states.
[2024-11-06 08:09:26,143 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 258.
[2024-11-06 08:09:26,144 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 258 states, 168 states have (on average 1.2797619047619047) internal successors, (215), 168 states have internal predecessors, (215), 78 states have call successors, (78), 11 states have call predecessors, (78), 11 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78)
[2024-11-06 08:09:26,146 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 371 transitions.
[2024-11-06 08:09:26,147 INFO  L78                 Accepts]: Start accepts. Automaton has 258 states and 371 transitions. Word has length 169
[2024-11-06 08:09:26,148 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:09:26,148 INFO  L471      AbstractCegarLoop]: Abstraction has 258 states and 371 transitions.
[2024-11-06 08:09:26,148 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 17 states, 17 states have (on average 5.411764705882353) internal successors, (92), 16 states have internal predecessors, (92), 5 states have call successors, (52), 5 states have call predecessors, (52), 8 states have return successors, (52), 5 states have call predecessors, (52), 5 states have call successors, (52)
[2024-11-06 08:09:26,148 INFO  L276                IsEmpty]: Start isEmpty. Operand 258 states and 371 transitions.
[2024-11-06 08:09:26,151 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 171
[2024-11-06 08:09:26,151 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:09:26,151 INFO  L215           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 08:09:26,167 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2024-11-06 08:09:26,370 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-06 08:09:26,552 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 08:09:26,553 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:09:26,553 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:09:26,553 INFO  L85        PathProgramCache]: Analyzing trace with hash -778798262, now seen corresponding path program 1 times
[2024-11-06 08:09:26,554 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:09:26,554 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1022717026]
[2024-11-06 08:09:26,554 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:09:26,555 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-06 08:09:26,555 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:09:26,558 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-06 08:09:26,559 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2024-11-06 08:09:26,760 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:09:26,773 INFO  L255         TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-06 08:09:26,778 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:09:27,045 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked.
[2024-11-06 08:09:27,045 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 08:09:27,046 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:09:27,046 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1022717026]
[2024-11-06 08:09:27,046 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1022717026] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 08:09:27,046 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 08:09:27,046 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-06 08:09:27,046 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109770659]
[2024-11-06 08:09:27,046 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 08:09:27,047 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-06 08:09:27,047 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:09:27,048 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-06 08:09:27,048 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-06 08:09:27,048 INFO  L87              Difference]: Start difference. First operand 258 states and 371 transitions. Second operand  has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26)
[2024-11-06 08:09:27,597 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:09:27,598 INFO  L93              Difference]: Finished difference Result 401 states and 585 transitions.
[2024-11-06 08:09:27,614 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-06 08:09:27,614 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 170
[2024-11-06 08:09:27,615 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:09:27,618 INFO  L225             Difference]: With dead ends: 401
[2024-11-06 08:09:27,618 INFO  L226             Difference]: Without dead ends: 313
[2024-11-06 08:09:27,618 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2024-11-06 08:09:27,619 INFO  L432           NwaCegarLoop]: 136 mSDtfsCounter, 164 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-06 08:09:27,620 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 437 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-06 08:09:27,621 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 313 states.
[2024-11-06 08:09:27,654 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 259.
[2024-11-06 08:09:27,655 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 259 states, 169 states have (on average 1.2781065088757397) internal successors, (216), 169 states have internal predecessors, (216), 78 states have call successors, (78), 11 states have call predecessors, (78), 11 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78)
[2024-11-06 08:09:27,657 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 372 transitions.
[2024-11-06 08:09:27,658 INFO  L78                 Accepts]: Start accepts. Automaton has 259 states and 372 transitions. Word has length 170
[2024-11-06 08:09:27,659 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:09:27,659 INFO  L471      AbstractCegarLoop]: Abstraction has 259 states and 372 transitions.
[2024-11-06 08:09:27,659 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26)
[2024-11-06 08:09:27,659 INFO  L276                IsEmpty]: Start isEmpty. Operand 259 states and 372 transitions.
[2024-11-06 08:09:27,661 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 171
[2024-11-06 08:09:27,661 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:09:27,662 INFO  L215           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 08:09:27,676 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2024-11-06 08:09:27,862 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-06 08:09:27,863 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:09:27,863 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:09:27,863 INFO  L85        PathProgramCache]: Analyzing trace with hash 1522024328, now seen corresponding path program 1 times
[2024-11-06 08:09:27,864 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:09:27,864 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [817217946]
[2024-11-06 08:09:27,864 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:09:27,864 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-06 08:09:27,864 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:09:27,866 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-06 08:09:27,868 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2024-11-06 08:09:28,091 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:09:28,107 INFO  L255         TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 41 conjuncts are in the unsatisfiable core
[2024-11-06 08:09:28,114 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:09:39,457 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 490 proven. 237 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked.
[2024-11-06 08:09:39,457 INFO  L311         TraceCheckSpWp]: Computing backward predicates...