/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 'cvc4 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-38.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 01:14:54,653 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 01:14:54,707 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-03 01:14:54,711 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 01:14:54,711 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 01:14:54,727 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 01:14:54,727 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 01:14:54,728 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 01:14:54,728 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 01:14:54,728 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 01:14:54,729 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 01:14:54,729 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 01:14:54,729 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 01:14:54,730 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 01:14:54,730 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 01:14:54,730 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 01:14:54,730 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 01:14:54,731 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 01:14:54,731 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 01:14:54,731 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 01:14:54,732 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 01:14:54,732 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 01:14:54,732 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 01:14:54,733 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 01:14:54,733 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 01:14:54,733 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 01:14:54,733 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 01:14:54,733 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 01:14:54,734 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 01:14:54,734 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 01:14:54,734 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 01:14:54,734 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 01:14:54,735 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 01:14:54,735 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 01:14:54,735 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:14:54,735 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 01:14:54,735 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 01:14:54,736 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 01:14:54,736 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 01:14:54,736 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 01:14:54,736 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 01:14:54,737 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 01:14:54,737 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 01:14:54,737 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 01:14:54,737 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt
[2024-11-03 01:14:54,926 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 01:14:54,947 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 01:14:54,949 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 01:14:54,950 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 01:14:54,951 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 01:14:54,952 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-38.i
[2024-11-03 01:14:56,199 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 01:14:56,395 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 01:14:56,396 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-38.i
[2024-11-03 01:14:56,406 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46f27ef72/ac8a5baedb934247b05c3c384e6a0268/FLAG4569eb071
[2024-11-03 01:14:56,421 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46f27ef72/ac8a5baedb934247b05c3c384e6a0268
[2024-11-03 01:14:56,424 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 01:14:56,425 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 01:14:56,427 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 01:14:56,427 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 01:14:56,432 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 01:14:56,433 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:14:56" (1/1) ...
[2024-11-03 01:14:56,434 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9752b07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:14:56, skipping insertion in model container
[2024-11-03 01:14:56,434 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:14:56" (1/1) ...
[2024-11-03 01:14:56,469 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 01:14:56,600 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_amount250_file-38.i[916,929]
[2024-11-03 01:14:56,727 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:14:56,745 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 01:14:56,754 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_amount250_file-38.i[916,929]
[2024-11-03 01:14:56,799 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:14:56,822 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 01:14:56,824 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:14:56 WrapperNode
[2024-11-03 01:14:56,824 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 01:14:56,825 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 01:14:56,825 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 01:14:56,825 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 01:14:56,830 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:14:56" (1/1) ...
[2024-11-03 01:14:56,842 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:14:56" (1/1) ...
[2024-11-03 01:14:56,871 INFO  L138                Inliner]: procedures = 27, calls = 51, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 306
[2024-11-03 01:14:56,871 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 01:14:56,872 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 01:14:56,872 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 01:14:56,872 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 01:14:56,884 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:14:56" (1/1) ...
[2024-11-03 01:14:56,884 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:14:56" (1/1) ...
[2024-11-03 01:14:56,889 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:14:56" (1/1) ...
[2024-11-03 01:14:56,904 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].
[2024-11-03 01:14:56,905 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:14:56" (1/1) ...
[2024-11-03 01:14:56,905 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:14:56" (1/1) ...
[2024-11-03 01:14:56,919 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:14:56" (1/1) ...
[2024-11-03 01:14:56,926 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:14:56" (1/1) ...
[2024-11-03 01:14:56,929 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:14:56" (1/1) ...
[2024-11-03 01:14:56,931 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:14:56" (1/1) ...
[2024-11-03 01:14:56,936 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 01:14:56,937 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 01:14:56,937 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 01:14:56,937 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 01:14:56,937 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:14:56" (1/1) ...
[2024-11-03 01:14:56,941 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:14:56,952 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 01:14:56,964 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)
[2024-11-03 01:14:56,967 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
[2024-11-03 01:14:56,986 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 01:14:56,987 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 01:14:56,987 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 01:14:56,987 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 01:14:56,987 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 01:14:56,988 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 01:14:57,069 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 01:14:57,071 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 01:15:35,115 INFO  L?                        ?]: Removed 34 outVars from TransFormulas that were not future-live.
[2024-11-03 01:15:35,116 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 01:15:35,137 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 01:15:35,138 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 01:15:35,139 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:15:35 BoogieIcfgContainer
[2024-11-03 01:15:35,139 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 01:15:35,142 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 01:15:35,142 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 01:15:35,146 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 01:15:35,146 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:14:56" (1/3) ...
[2024-11-03 01:15:35,147 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@621119ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:15:35, skipping insertion in model container
[2024-11-03 01:15:35,147 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:14:56" (2/3) ...
[2024-11-03 01:15:35,147 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@621119ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:15:35, skipping insertion in model container
[2024-11-03 01:15:35,147 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:15:35" (3/3) ...
[2024-11-03 01:15:35,148 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-38.i
[2024-11-03 01:15:35,163 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 01:15:35,164 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 01:15:35,239 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 01:15:35,244 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;@71109092, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 01:15:35,245 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 01:15:35,250 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 132 states, 91 states have (on average 1.5274725274725274) internal successors, (139), 92 states have internal predecessors, (139), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38)
[2024-11-03 01:15:35,263 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 253
[2024-11-03 01:15:35,263 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:15:35,264 INFO  L215           NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 01:15:35,265 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:15:35,269 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:15:35,269 INFO  L85        PathProgramCache]: Analyzing trace with hash -645998291, now seen corresponding path program 1 times
[2024-11-03 01:15:35,276 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:15:35,276 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [183692948]
[2024-11-03 01:15:35,276 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:15:35,278 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:15:35,278 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:15:35,281 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 01:15:35,282 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process
[2024-11-03 01:15:36,030 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:15:36,089 INFO  L255         TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 01:15:36,109 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:15:36,167 INFO  L134       CoverageAnalysis]: Checked inductivity of 2812 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 2738 trivial. 0 not checked.
[2024-11-03 01:15:36,167 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:15:42,915 INFO  L134       CoverageAnalysis]: Checked inductivity of 2812 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 2738 trivial. 0 not checked.
[2024-11-03 01:15:42,916 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:15:42,916 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [183692948]
[2024-11-03 01:15:42,917 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [183692948] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:15:42,917 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:15:42,917 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 01:15:42,918 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949328637]
[2024-11-03 01:15:42,919 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:15:42,924 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 01:15:42,925 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:15:42,943 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 01:15:42,943 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 01:15:42,945 INFO  L87              Difference]: Start difference. First operand  has 132 states, 91 states have (on average 1.5274725274725274) internal successors, (139), 92 states have internal predecessors, (139), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Second operand  has 2 states, 2 states have (on average 33.5) internal successors, (67), 2 states have internal predecessors, (67), 1 states have call successors, (38), 1 states have call predecessors, (38), 2 states have return successors, (38), 2 states have call predecessors, (38), 1 states have call successors, (38)
[2024-11-03 01:15:42,973 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:15:42,974 INFO  L93              Difference]: Finished difference Result 257 states and 462 transitions.
[2024-11-03 01:15:42,974 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 01:15:42,976 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 33.5) internal successors, (67), 2 states have internal predecessors, (67), 1 states have call successors, (38), 1 states have call predecessors, (38), 2 states have return successors, (38), 2 states have call predecessors, (38), 1 states have call successors, (38) Word has length 252
[2024-11-03 01:15:42,976 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:15:42,982 INFO  L225             Difference]: With dead ends: 257
[2024-11-03 01:15:42,983 INFO  L226             Difference]: Without dead ends: 128
[2024-11-03 01:15:42,986 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 502 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 01:15:42,990 INFO  L432           NwaCegarLoop]: 207 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, 207 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
[2024-11-03 01:15:42,991 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 01:15:43,005 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 128 states.
[2024-11-03 01:15:43,031 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128.
[2024-11-03 01:15:43,032 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 128 states, 88 states have (on average 1.4886363636363635) internal successors, (131), 88 states have internal predecessors, (131), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38)
[2024-11-03 01:15:43,034 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 207 transitions.
[2024-11-03 01:15:43,036 INFO  L78                 Accepts]: Start accepts. Automaton has 128 states and 207 transitions. Word has length 252
[2024-11-03 01:15:43,036 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:15:43,036 INFO  L471      AbstractCegarLoop]: Abstraction has 128 states and 207 transitions.
[2024-11-03 01:15:43,036 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 33.5) internal successors, (67), 2 states have internal predecessors, (67), 1 states have call successors, (38), 1 states have call predecessors, (38), 2 states have return successors, (38), 2 states have call predecessors, (38), 1 states have call successors, (38)
[2024-11-03 01:15:43,037 INFO  L276                IsEmpty]: Start isEmpty. Operand 128 states and 207 transitions.
[2024-11-03 01:15:43,040 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 253
[2024-11-03 01:15:43,040 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:15:43,040 INFO  L215           NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 01:15:43,050 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0
[2024-11-03 01:15:43,241 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 01:15:43,241 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:15:43,242 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:15:43,242 INFO  L85        PathProgramCache]: Analyzing trace with hash 176949937, now seen corresponding path program 1 times
[2024-11-03 01:15:43,242 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:15:43,242 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1879101071]
[2024-11-03 01:15:43,243 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:15:43,243 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:15:43,243 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:15:43,245 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 01:15:43,246 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process
[2024-11-03 01:15:43,912 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:15:43,952 INFO  L255         TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 01:15:43,957 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:15:45,000 INFO  L134       CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked.
[2024-11-03 01:15:45,001 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:15:52,519 INFO  L134       CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked.
[2024-11-03 01:15:52,519 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:15:52,519 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1879101071]
[2024-11-03 01:15:52,519 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1879101071] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:15:52,519 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:15:52,519 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-03 01:15:52,520 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464814498]
[2024-11-03 01:15:52,520 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:15:52,521 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 01:15:52,521 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:15:52,522 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 01:15:52,522 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:15:52,522 INFO  L87              Difference]: Start difference. First operand 128 states and 207 transitions. Second operand  has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38)
[2024-11-03 01:15:58,308 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:16:02,324 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 []
[2024-11-03 01:16:02,334 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:16:02,335 INFO  L93              Difference]: Finished difference Result 373 states and 605 transitions.
[2024-11-03 01:16:02,825 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 01:16:02,825 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) Word has length 252
[2024-11-03 01:16:02,826 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:16:02,830 INFO  L225             Difference]: With dead ends: 373
[2024-11-03 01:16:02,830 INFO  L226             Difference]: Without dead ends: 248
[2024-11-03 01:16:02,831 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 501 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:16:02,836 INFO  L432           NwaCegarLoop]: 219 mSDtfsCounter, 181 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time
[2024-11-03 01:16:02,837 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 404 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 13 Invalid, 2 Unknown, 0 Unchecked, 9.8s Time]
[2024-11-03 01:16:02,838 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 248 states.
[2024-11-03 01:16:02,855 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 160.
[2024-11-03 01:16:02,856 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 160 states, 120 states have (on average 1.5) internal successors, (180), 120 states have internal predecessors, (180), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38)
[2024-11-03 01:16:02,857 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 256 transitions.
[2024-11-03 01:16:02,862 INFO  L78                 Accepts]: Start accepts. Automaton has 160 states and 256 transitions. Word has length 252
[2024-11-03 01:16:02,863 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:16:02,864 INFO  L471      AbstractCegarLoop]: Abstraction has 160 states and 256 transitions.
[2024-11-03 01:16:02,864 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38)
[2024-11-03 01:16:02,864 INFO  L276                IsEmpty]: Start isEmpty. Operand 160 states and 256 transitions.
[2024-11-03 01:16:02,870 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 254
[2024-11-03 01:16:02,870 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:16:02,870 INFO  L215           NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 01:16:02,882 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0
[2024-11-03 01:16:03,071 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 01:16:03,072 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:16:03,072 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:16:03,072 INFO  L85        PathProgramCache]: Analyzing trace with hash -277721105, now seen corresponding path program 1 times
[2024-11-03 01:16:03,072 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:16:03,073 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [530545620]
[2024-11-03 01:16:03,073 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:16:03,073 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:16:03,073 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:16:03,075 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 01:16:03,076 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process
[2024-11-03 01:16:03,837 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:16:03,903 INFO  L255         TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 01:16:03,908 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:16:05,713 INFO  L134       CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked.
[2024-11-03 01:16:05,714 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:16:14,728 INFO  L134       CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked.
[2024-11-03 01:16:14,728 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:16:14,728 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [530545620]
[2024-11-03 01:16:14,728 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [530545620] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:16:14,728 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:16:14,728 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-03 01:16:14,729 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281250019]
[2024-11-03 01:16:14,730 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:16:14,730 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 01:16:14,730 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:16:14,731 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 01:16:14,731 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:16:14,732 INFO  L87              Difference]: Start difference. First operand 160 states and 256 transitions. Second operand  has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38)
[2024-11-03 01:16:21,336 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:16:25,366 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 []
[2024-11-03 01:16:26,059 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:16:26,059 INFO  L93              Difference]: Finished difference Result 405 states and 649 transitions.
[2024-11-03 01:16:26,064 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 01:16:26,065 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) Word has length 253
[2024-11-03 01:16:26,066 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:16:26,068 INFO  L225             Difference]: With dead ends: 405
[2024-11-03 01:16:26,068 INFO  L226             Difference]: Without dead ends: 248
[2024-11-03 01:16:26,068 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 504 GetRequests, 503 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:16:26,069 INFO  L432           NwaCegarLoop]: 315 mSDtfsCounter, 174 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time
[2024-11-03 01:16:26,069 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 504 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 2 Unknown, 0 Unchecked, 11.3s Time]
[2024-11-03 01:16:26,070 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 248 states.
[2024-11-03 01:16:26,080 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 160.
[2024-11-03 01:16:26,080 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 160 states, 120 states have (on average 1.4583333333333333) internal successors, (175), 120 states have internal predecessors, (175), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38)
[2024-11-03 01:16:26,081 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 251 transitions.
[2024-11-03 01:16:26,082 INFO  L78                 Accepts]: Start accepts. Automaton has 160 states and 251 transitions. Word has length 253
[2024-11-03 01:16:26,082 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:16:26,082 INFO  L471      AbstractCegarLoop]: Abstraction has 160 states and 251 transitions.
[2024-11-03 01:16:26,082 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38)
[2024-11-03 01:16:26,083 INFO  L276                IsEmpty]: Start isEmpty. Operand 160 states and 251 transitions.
[2024-11-03 01:16:26,084 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 254
[2024-11-03 01:16:26,084 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:16:26,085 INFO  L215           NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 01:16:26,099 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0
[2024-11-03 01:16:26,285 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 01:16:26,286 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:16:26,286 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:16:26,286 INFO  L85        PathProgramCache]: Analyzing trace with hash -1970747448, now seen corresponding path program 1 times
[2024-11-03 01:16:26,287 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:16:26,287 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1048994912]
[2024-11-03 01:16:26,287 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:16:26,287 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:16:26,287 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:16:26,289 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 01:16:26,290 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process
[2024-11-03 01:16:32,348 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:16:32,427 INFO  L255         TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-03 01:16:32,434 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:16:37,839 INFO  L134       CoverageAnalysis]: Checked inductivity of 2812 backedges. 937 proven. 21 refuted. 0 times theorem prover too weak. 1854 trivial. 0 not checked.
[2024-11-03 01:16:37,839 INFO  L311         TraceCheckSpWp]: Computing backward predicates...