/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 --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'z3 -smt2 -in SMTLIB2_COMPLIANT=true' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-74.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-02 21:40:36,367 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-02 21:40:36,445 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-02 21:40:36,449 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-02 21:40:36,450 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-02 21:40:36,477 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-02 21:40:36,479 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-02 21:40:36,479 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-02 21:40:36,480 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-02 21:40:36,480 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-02 21:40:36,480 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-02 21:40:36,480 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-02 21:40:36,481 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-02 21:40:36,481 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-02 21:40:36,482 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-02 21:40:36,482 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-02 21:40:36,484 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-02 21:40:36,486 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-02 21:40:36,486 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-02 21:40:36,486 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-02 21:40:36,487 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-02 21:40:36,488 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-02 21:40:36,489 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-02 21:40:36,489 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-02 21:40:36,489 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-02 21:40:36,489 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-02 21:40:36,489 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-02 21:40:36,490 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-02 21:40:36,490 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-02 21:40:36,490 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-02 21:40:36,490 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-02 21:40:36,490 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-02 21:40:36,491 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-02 21:40:36,491 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-02 21:40:36,491 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 21:40:36,491 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-02 21:40:36,491 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-02 21:40:36,492 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-02 21:40:36,492 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-02 21:40:36,492 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-02 21:40:36,493 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-02 21:40:36,493 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-02 21:40:36,493 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-02 21:40:36,493 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-02 21:40:36,494 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:40:36,705 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-02 21:40:36,728 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-02 21:40:36,731 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-02 21:40:36,732 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-02 21:40:36,732 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-02 21:40:36,733 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-74.i
[2024-11-02 21:40:38,124 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-02 21:40:38,326 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-02 21:40:38,327 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-74.i
[2024-11-02 21:40:38,340 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7468e1481/27d143f563d7482b80e6d136949a4ecb/FLAG5929d2ffe
[2024-11-02 21:40:38,356 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7468e1481/27d143f563d7482b80e6d136949a4ecb
[2024-11-02 21:40:38,358 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-02 21:40:38,359 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-02 21:40:38,360 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-02 21:40:38,360 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-02 21:40:38,366 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-02 21:40:38,367 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:40:38" (1/1) ...
[2024-11-02 21:40:38,368 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ec8148a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:38, skipping insertion in model container
[2024-11-02 21:40:38,368 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:40:38" (1/1) ...
[2024-11-02 21:40:38,400 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-02 21:40:38,562 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-74.i[916,929]
[2024-11-02 21:40:38,661 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 21:40:38,681 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-02 21:40:38,692 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-74.i[916,929]
[2024-11-02 21:40:38,741 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 21:40:38,767 INFO  L204         MainTranslator]: Completed translation
[2024-11-02 21:40:38,769 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:38 WrapperNode
[2024-11-02 21:40:38,769 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-02 21:40:38,770 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-02 21:40:38,770 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-02 21:40:38,771 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-02 21:40:38,777 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:38" (1/1) ...
[2024-11-02 21:40:38,790 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:38" (1/1) ...
[2024-11-02 21:40:38,824 INFO  L138                Inliner]: procedures = 27, calls = 44, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 216
[2024-11-02 21:40:38,825 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-02 21:40:38,825 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-02 21:40:38,826 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-02 21:40:38,826 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-02 21:40:38,847 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:38" (1/1) ...
[2024-11-02 21:40:38,847 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:38" (1/1) ...
[2024-11-02 21:40:38,856 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:38" (1/1) ...
[2024-11-02 21:40:38,880 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].
[2024-11-02 21:40:38,883 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:38" (1/1) ...
[2024-11-02 21:40:38,884 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:38" (1/1) ...
[2024-11-02 21:40:38,902 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:38" (1/1) ...
[2024-11-02 21:40:38,906 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:38" (1/1) ...
[2024-11-02 21:40:38,913 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:38" (1/1) ...
[2024-11-02 21:40:38,919 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:38" (1/1) ...
[2024-11-02 21:40:38,925 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-02 21:40:38,929 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-02 21:40:38,929 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-02 21:40:38,930 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-02 21:40:38,931 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:38" (1/1) ...
[2024-11-02 21:40:38,937 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 21:40:38,948 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:40:38,963 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)
[2024-11-02 21:40:38,966 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
[2024-11-02 21:40:38,995 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-02 21:40:38,995 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-02 21:40:38,996 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-02 21:40:38,996 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-02 21:40:38,996 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-02 21:40:38,998 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-02 21:40:39,111 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-02 21:40:39,113 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-02 21:40:54,291 INFO  L?                        ?]: Removed 22 outVars from TransFormulas that were not future-live.
[2024-11-02 21:40:54,291 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-02 21:40:54,309 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-02 21:40:54,309 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-02 21:40:54,309 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:40:54 BoogieIcfgContainer
[2024-11-02 21:40:54,310 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-02 21:40:54,314 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-02 21:40:54,314 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-02 21:40:54,317 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-02 21:40:54,318 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:40:38" (1/3) ...
[2024-11-02 21:40:54,319 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13d5ad93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:40:54, skipping insertion in model container
[2024-11-02 21:40:54,319 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:38" (2/3) ...
[2024-11-02 21:40:54,320 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13d5ad93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:40:54, skipping insertion in model container
[2024-11-02 21:40:54,320 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:40:54" (3/3) ...
[2024-11-02 21:40:54,322 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-74.i
[2024-11-02 21:40:54,337 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-02 21:40:54,338 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-02 21:40:54,392 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-02 21:40:54,399 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;@420107bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-02 21:40:54,399 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-02 21:40:54,406 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 94 states, 60 states have (on average 1.45) internal successors, (87), 61 states have internal predecessors, (87), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31)
[2024-11-02 21:40:54,426 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 196
[2024-11-02 21:40:54,426 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:40:54,427 INFO  L215           NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:40:54,428 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:40:54,434 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:40:54,434 INFO  L85        PathProgramCache]: Analyzing trace with hash 511175944, now seen corresponding path program 1 times
[2024-11-02 21:40:54,442 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:40:54,443 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [968692369]
[2024-11-02 21:40:54,443 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:40:54,448 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:40:54,448 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:40:54,450 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:40:54,452 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-02 21:40:55,019 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:40:55,097 INFO  L255         TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-02 21:40:55,113 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:40:55,183 INFO  L134       CoverageAnalysis]: Checked inductivity of 1860 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 1800 trivial. 0 not checked.
[2024-11-02 21:40:55,183 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:40:56,500 INFO  L134       CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 1800 trivial. 0 not checked.
[2024-11-02 21:40:56,502 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:40:56,502 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [968692369]
[2024-11-02 21:40:56,502 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [968692369] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 21:40:56,503 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 21:40:56,503 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-02 21:40:56,504 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300353924]
[2024-11-02 21:40:56,505 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 21:40:56,509 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-02 21:40:56,510 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:40:56,530 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-02 21:40:56,531 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-02 21:40:56,533 INFO  L87              Difference]: Start difference. First operand  has 94 states, 60 states have (on average 1.45) internal successors, (87), 61 states have internal predecessors, (87), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand  has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31)
[2024-11-02 21:40:56,561 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:40:56,561 INFO  L93              Difference]: Finished difference Result 181 states and 323 transitions.
[2024-11-02 21:40:56,562 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-02 21:40:56,563 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) Word has length 195
[2024-11-02 21:40:56,563 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:40:56,570 INFO  L225             Difference]: With dead ends: 181
[2024-11-02 21:40:56,570 INFO  L226             Difference]: Without dead ends: 90
[2024-11-02 21:40:56,574 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 388 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-02 21:40:56,578 INFO  L432           NwaCegarLoop]: 142 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-02 21:40:56,579 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-02 21:40:56,595 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 90 states.
[2024-11-02 21:40:56,627 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90.
[2024-11-02 21:40:56,628 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 90 states, 57 states have (on average 1.4035087719298245) internal successors, (80), 57 states have internal predecessors, (80), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31)
[2024-11-02 21:40:56,630 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 142 transitions.
[2024-11-02 21:40:56,636 INFO  L78                 Accepts]: Start accepts. Automaton has 90 states and 142 transitions. Word has length 195
[2024-11-02 21:40:56,637 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:40:56,637 INFO  L471      AbstractCegarLoop]: Abstraction has 90 states and 142 transitions.
[2024-11-02 21:40:56,638 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31)
[2024-11-02 21:40:56,638 INFO  L276                IsEmpty]: Start isEmpty. Operand 90 states and 142 transitions.
[2024-11-02 21:40:56,644 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 196
[2024-11-02 21:40:56,645 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:40:56,645 INFO  L215           NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:40:56,724 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-02 21:40:56,846 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:40:56,846 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:40:56,847 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:40:56,847 INFO  L85        PathProgramCache]: Analyzing trace with hash -1161362878, now seen corresponding path program 1 times
[2024-11-02 21:40:56,848 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:40:56,848 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1959878743]
[2024-11-02 21:40:56,848 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:40:56,848 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:40:56,849 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:40:56,850 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:40:56,851 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-02 21:40:57,356 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:40:57,426 INFO  L255         TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-02 21:40:57,434 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:41:01,577 INFO  L134       CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked.
[2024-11-02 21:41:01,578 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:41:04,167 INFO  L134       CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked.
[2024-11-02 21:41:04,168 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:41:04,168 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1959878743]
[2024-11-02 21:41:04,168 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1959878743] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 21:41:04,168 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 21:41:04,168 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4
[2024-11-02 21:41:04,169 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74837618]
[2024-11-02 21:41:04,169 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 21:41:04,174 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-02 21:41:04,174 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:41:04,175 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-02 21:41:04,182 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-02 21:41:04,183 INFO  L87              Difference]: Start difference. First operand 90 states and 142 transitions. Second operand  has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62)
[2024-11-02 21:41:09,002 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:41:13,007 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-02 21:41:17,015 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:41:17,134 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:41:17,135 INFO  L93              Difference]: Finished difference Result 264 states and 420 transitions.
[2024-11-02 21:41:17,136 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-02 21:41:17,136 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) Word has length 195
[2024-11-02 21:41:17,137 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:41:17,140 INFO  L225             Difference]: With dead ends: 264
[2024-11-02 21:41:17,140 INFO  L226             Difference]: Without dead ends: 177
[2024-11-02 21:41:17,141 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 386 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-02 21:41:17,142 INFO  L432           NwaCegarLoop]: 157 mSDtfsCounter, 44 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time
[2024-11-02 21:41:17,143 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 419 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 3 Unknown, 0 Unchecked, 12.9s Time]
[2024-11-02 21:41:17,143 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 177 states.
[2024-11-02 21:41:17,189 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 175.
[2024-11-02 21:41:17,190 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 175 states, 110 states have (on average 1.4090909090909092) internal successors, (155), 110 states have internal predecessors, (155), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62)
[2024-11-02 21:41:17,192 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 279 transitions.
[2024-11-02 21:41:17,196 INFO  L78                 Accepts]: Start accepts. Automaton has 175 states and 279 transitions. Word has length 195
[2024-11-02 21:41:17,197 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:41:17,198 INFO  L471      AbstractCegarLoop]: Abstraction has 175 states and 279 transitions.
[2024-11-02 21:41:17,198 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62)
[2024-11-02 21:41:17,198 INFO  L276                IsEmpty]: Start isEmpty. Operand 175 states and 279 transitions.
[2024-11-02 21:41:17,203 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 197
[2024-11-02 21:41:17,204 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:41:17,204 INFO  L215           NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:41:17,278 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-02 21:41:17,404 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:41:17,405 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:41:17,406 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:41:17,406 INFO  L85        PathProgramCache]: Analyzing trace with hash 581742365, now seen corresponding path program 1 times
[2024-11-02 21:41:17,406 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:41:17,406 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1757290670]
[2024-11-02 21:41:17,406 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:41:17,406 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:41:17,407 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:41:17,411 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)
[2024-11-02 21:41:17,413 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-02 21:41:17,916 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:41:17,984 INFO  L255         TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-02 21:41:17,987 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:41:18,191 INFO  L134       CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked.
[2024-11-02 21:41:18,191 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:41:19,784 INFO  L134       CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked.
[2024-11-02 21:41:19,784 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:41:19,784 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1757290670]
[2024-11-02 21:41:19,785 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1757290670] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 21:41:19,785 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 21:41:19,785 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5
[2024-11-02 21:41:19,785 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001103162]
[2024-11-02 21:41:19,785 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 21:41:19,786 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-02 21:41:19,786 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:41:19,787 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-02 21:41:19,787 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-02 21:41:19,787 INFO  L87              Difference]: Start difference. First operand 175 states and 279 transitions. Second operand  has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31)
[2024-11-02 21:41:24,659 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:41:30,046 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:41:34,402 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:41:38,414 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:41:42,421 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:41:46,429 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:41:50,436 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:41:54,445 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:41:58,451 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:42:02,460 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:42:06,924 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:42:10,951 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:42:11,974 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:42:11,975 INFO  L93              Difference]: Finished difference Result 829 states and 1297 transitions.
[2024-11-02 21:42:11,975 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-02 21:42:11,976 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 196
[2024-11-02 21:42:11,977 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:42:11,987 INFO  L225             Difference]: With dead ends: 829
[2024-11-02 21:42:11,987 INFO  L226             Difference]: Without dead ends: 657
[2024-11-02 21:42:11,990 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 388 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2024-11-02 21:42:11,991 INFO  L432           NwaCegarLoop]: 198 mSDtfsCounter, 351 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 59 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.0s IncrementalHoareTripleChecker+Time
[2024-11-02 21:42:11,995 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 521 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 152 Invalid, 12 Unknown, 0 Unchecked, 52.0s Time]
[2024-11-02 21:42:11,997 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 657 states.
[2024-11-02 21:42:12,073 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 329.
[2024-11-02 21:42:12,074 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 329 states, 220 states have (on average 1.4318181818181819) internal successors, (315), 222 states have internal predecessors, (315), 104 states have call successors, (104), 4 states have call predecessors, (104), 4 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104)
[2024-11-02 21:42:12,079 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 523 transitions.
[2024-11-02 21:42:12,082 INFO  L78                 Accepts]: Start accepts. Automaton has 329 states and 523 transitions. Word has length 196
[2024-11-02 21:42:12,083 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:42:12,083 INFO  L471      AbstractCegarLoop]: Abstraction has 329 states and 523 transitions.
[2024-11-02 21:42:12,083 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31)
[2024-11-02 21:42:12,083 INFO  L276                IsEmpty]: Start isEmpty. Operand 329 states and 523 transitions.
[2024-11-02 21:42:12,090 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 197
[2024-11-02 21:42:12,090 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:42:12,090 INFO  L215           NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:42:12,153 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-02 21:42:12,291 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:42:12,291 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:42:12,292 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:42:12,292 INFO  L85        PathProgramCache]: Analyzing trace with hash -1836465226, now seen corresponding path program 1 times
[2024-11-02 21:42:12,292 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:42:12,292 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1219335132]
[2024-11-02 21:42:12,292 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:42:12,293 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:42:12,293 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:42:12,295 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:42:12,296 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-02 21:42:12,737 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:42:12,808 INFO  L255         TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-02 21:42:12,811 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:42:14,943 INFO  L134       CoverageAnalysis]: Checked inductivity of 1860 backedges. 948 proven. 39 refuted. 0 times theorem prover too weak. 873 trivial. 0 not checked.
[2024-11-02 21:42:14,943 INFO  L311         TraceCheckSpWp]: Computing backward predicates...