/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_amount500_file-61.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 01:43:38,334 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 01:43:38,408 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 01:43:38,412 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 01:43:38,412 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 01:43:38,446 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 01:43:38,449 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 01:43:38,449 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 01:43:38,450 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 01:43:38,452 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 01:43:38,452 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 01:43:38,452 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 01:43:38,453 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 01:43:38,453 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 01:43:38,457 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 01:43:38,458 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 01:43:38,458 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 01:43:38,458 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 01:43:38,458 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 01:43:38,459 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 01:43:38,459 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 01:43:38,459 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 01:43:38,459 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 01:43:38,460 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 01:43:38,460 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 01:43:38,460 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 01:43:38,460 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 01:43:38,460 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 01:43:38,461 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 01:43:38,461 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 01:43:38,461 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 01:43:38,461 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 01:43:38,461 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 01:43:38,462 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 01:43:38,462 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:43:38,462 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 01:43:38,462 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 01:43:38,463 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 01:43:38,463 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 01:43:38,463 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 01:43:38,465 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 01:43:38,466 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 01:43:38,466 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 01:43:38,466 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 01:43:38,466 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt
[2024-11-03 01:43:38,682 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 01:43:38,708 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 01:43:38,711 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 01:43:38,712 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 01:43:38,712 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 01:43:38,713 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-61.i
[2024-11-03 01:43:40,184 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 01:43:40,449 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 01:43:40,450 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-61.i
[2024-11-03 01:43:40,470 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cdbaf29d/55be6748745a4422bf5b38c2a53d1615/FLAG80fe62cb0
[2024-11-03 01:43:40,487 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cdbaf29d/55be6748745a4422bf5b38c2a53d1615
[2024-11-03 01:43:40,490 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 01:43:40,491 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 01:43:40,492 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 01:43:40,492 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 01:43:40,498 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 01:43:40,499 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:43:40" (1/1) ...
[2024-11-03 01:43:40,500 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f9c2d14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:43:40, skipping insertion in model container
[2024-11-03 01:43:40,500 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:43:40" (1/1) ...
[2024-11-03 01:43:40,565 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 01:43:40,745 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_amount500_file-61.i[916,929]
[2024-11-03 01:43:40,943 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:43:40,972 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 01:43:40,985 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_amount500_file-61.i[916,929]
[2024-11-03 01:43:41,141 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:43:41,165 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 01:43:41,166 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:43:41 WrapperNode
[2024-11-03 01:43:41,166 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 01:43:41,167 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 01:43:41,167 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 01:43:41,167 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 01:43:41,172 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:43:41" (1/1) ...
[2024-11-03 01:43:41,200 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:43:41" (1/1) ...
[2024-11-03 01:43:41,284 INFO  L138                Inliner]: procedures = 27, calls = 79, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 576
[2024-11-03 01:43:41,285 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 01:43:41,285 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 01:43:41,285 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 01:43:41,285 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 01:43:41,296 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:43:41" (1/1) ...
[2024-11-03 01:43:41,297 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:43:41" (1/1) ...
[2024-11-03 01:43:41,313 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:43:41" (1/1) ...
[2024-11-03 01:43:41,367 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 01:43:41,367 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:43:41" (1/1) ...
[2024-11-03 01:43:41,368 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:43:41" (1/1) ...
[2024-11-03 01:43:41,403 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:43:41" (1/1) ...
[2024-11-03 01:43:41,409 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:43:41" (1/1) ...
[2024-11-03 01:43:41,418 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:43:41" (1/1) ...
[2024-11-03 01:43:41,429 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:43:41" (1/1) ...
[2024-11-03 01:43:41,446 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 01:43:41,448 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 01:43:41,448 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 01:43:41,448 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 01:43:41,449 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:43:41" (1/1) ...
[2024-11-03 01:43:41,454 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:43:41,466 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 01:43:41,482 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 01:43:41,489 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 01:43:41,515 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 01:43:41,515 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 01:43:41,516 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 01:43:41,516 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 01:43:41,516 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 01:43:41,516 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 01:43:41,661 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 01:43:41,662 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 01:44:12,093 INFO  L?                        ?]: Removed 60 outVars from TransFormulas that were not future-live.
[2024-11-03 01:44:12,094 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 01:44:12,120 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 01:44:12,120 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 01:44:12,120 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:44:12 BoogieIcfgContainer
[2024-11-03 01:44:12,121 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 01:44:12,125 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 01:44:12,126 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 01:44:12,129 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 01:44:12,129 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:43:40" (1/3) ...
[2024-11-03 01:44:12,130 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ebdcd6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:44:12, skipping insertion in model container
[2024-11-03 01:44:12,130 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:43:41" (2/3) ...
[2024-11-03 01:44:12,131 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ebdcd6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:44:12, skipping insertion in model container
[2024-11-03 01:44:12,131 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:44:12" (3/3) ...
[2024-11-03 01:44:12,132 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-61.i
[2024-11-03 01:44:12,146 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 01:44:12,147 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 01:44:12,225 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 01:44:12,232 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;@29128894, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 01:44:12,232 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 01:44:12,239 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 236 states, 167 states have (on average 1.5808383233532934) internal successors, (264), 168 states have internal predecessors, (264), 66 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66)
[2024-11-03 01:44:12,275 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 450
[2024-11-03 01:44:12,275 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:44:12,276 INFO  L215           NwaCegarLoop]: trace histogram [66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:44:12,277 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:44:12,281 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:44:12,282 INFO  L85        PathProgramCache]: Analyzing trace with hash -1462827840, now seen corresponding path program 1 times
[2024-11-03 01:44:12,288 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:44:12,288 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [888942551]
[2024-11-03 01:44:12,288 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:44:12,290 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:44:12,291 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:44:12,293 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 01:44:12,295 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 01:44:14,064 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:44:14,200 INFO  L255         TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 01:44:14,222 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:44:32,375 INFO  L134       CoverageAnalysis]: Checked inductivity of 8580 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked.
[2024-11-03 01:44:32,375 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:44:44,685 INFO  L134       CoverageAnalysis]: Checked inductivity of 8580 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked.
[2024-11-03 01:44:44,686 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:44:44,686 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [888942551]
[2024-11-03 01:44:44,686 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [888942551] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:44:44,686 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:44:44,687 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3
[2024-11-03 01:44:44,688 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275596538]
[2024-11-03 01:44:44,688 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:44:44,694 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 01:44:44,695 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:44:44,718 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 01:44:44,719 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:44:44,724 INFO  L87              Difference]: Start difference. First operand  has 236 states, 167 states have (on average 1.5808383233532934) internal successors, (264), 168 states have internal predecessors, (264), 66 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) Second operand  has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (132), 2 states have call predecessors, (132), 2 states have return successors, (132), 1 states have call predecessors, (132), 1 states have call successors, (132)
[2024-11-03 01:44:51,308 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.95s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:44:55,318 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 01:44:55,690 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:44:55,690 INFO  L93              Difference]: Finished difference Result 694 states and 1308 transitions.
[2024-11-03 01:44:55,696 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 01:44:55,698 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (132), 2 states have call predecessors, (132), 2 states have return successors, (132), 1 states have call predecessors, (132), 1 states have call successors, (132) Word has length 449
[2024-11-03 01:44:55,700 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:44:55,719 INFO  L225             Difference]: With dead ends: 694
[2024-11-03 01:44:55,719 INFO  L226             Difference]: Without dead ends: 461
[2024-11-03 01:44:55,725 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 896 GetRequests, 895 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:44:55,728 INFO  L432           NwaCegarLoop]: 383 mSDtfsCounter, 196 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 758 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time
[2024-11-03 01:44:55,729 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 758 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 2 Unknown, 0 Unchecked, 10.9s Time]
[2024-11-03 01:44:55,747 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 461 states.
[2024-11-03 01:44:55,832 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 459.
[2024-11-03 01:44:55,835 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 459 states, 324 states have (on average 1.558641975308642) internal successors, (505), 324 states have internal predecessors, (505), 132 states have call successors, (132), 2 states have call predecessors, (132), 2 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132)
[2024-11-03 01:44:55,839 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 769 transitions.
[2024-11-03 01:44:55,844 INFO  L78                 Accepts]: Start accepts. Automaton has 459 states and 769 transitions. Word has length 449
[2024-11-03 01:44:55,849 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:44:55,850 INFO  L471      AbstractCegarLoop]: Abstraction has 459 states and 769 transitions.
[2024-11-03 01:44:55,850 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (132), 2 states have call predecessors, (132), 2 states have return successors, (132), 1 states have call predecessors, (132), 1 states have call successors, (132)
[2024-11-03 01:44:55,851 INFO  L276                IsEmpty]: Start isEmpty. Operand 459 states and 769 transitions.
[2024-11-03 01:44:55,862 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 450
[2024-11-03 01:44:55,863 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:44:55,863 INFO  L215           NwaCegarLoop]: trace histogram [66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:44:55,885 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0
[2024-11-03 01:44:56,064 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 01:44:56,065 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:44:56,065 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:44:56,066 INFO  L85        PathProgramCache]: Analyzing trace with hash 2100172030, now seen corresponding path program 1 times
[2024-11-03 01:44:56,066 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:44:56,066 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1813461982]
[2024-11-03 01:44:56,066 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:44:56,067 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:44:56,067 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:44:56,069 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 01:44:56,071 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 01:44:57,733 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:44:57,876 INFO  L255         TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 01:44:57,886 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:44:58,253 INFO  L134       CoverageAnalysis]: Checked inductivity of 8580 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked.
[2024-11-03 01:44:58,254 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:45:06,048 INFO  L134       CoverageAnalysis]: Checked inductivity of 8580 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked.
[2024-11-03 01:45:06,048 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:45:06,048 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1813461982]
[2024-11-03 01:45:06,048 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1813461982] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:45:06,049 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:45:06,049 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-03 01:45:06,049 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026464972]
[2024-11-03 01:45:06,049 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:45:06,051 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 01:45:06,051 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:45:06,053 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 01:45:06,054 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:45:06,054 INFO  L87              Difference]: Start difference. First operand 459 states and 769 transitions. Second operand  has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66)
[2024-11-03 01:45:11,228 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.57s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:45:15,237 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 01:45:15,580 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:45:15,580 INFO  L93              Difference]: Finished difference Result 1365 states and 2289 transitions.
[2024-11-03 01:45:15,581 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 01:45:15,581 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) Word has length 449
[2024-11-03 01:45:15,585 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:45:15,592 INFO  L225             Difference]: With dead ends: 1365
[2024-11-03 01:45:15,592 INFO  L226             Difference]: Without dead ends: 909
[2024-11-03 01:45:15,594 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 896 GetRequests, 895 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:45:15,595 INFO  L432           NwaCegarLoop]: 383 mSDtfsCounter, 380 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time
[2024-11-03 01:45:15,596 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 753 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 2 Unknown, 0 Unchecked, 9.5s Time]
[2024-11-03 01:45:15,598 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 909 states.
[2024-11-03 01:45:15,672 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 607.
[2024-11-03 01:45:15,674 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 607 states, 472 states have (on average 1.6228813559322033) internal successors, (766), 472 states have internal predecessors, (766), 132 states have call successors, (132), 2 states have call predecessors, (132), 2 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132)
[2024-11-03 01:45:15,678 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 1030 transitions.
[2024-11-03 01:45:15,679 INFO  L78                 Accepts]: Start accepts. Automaton has 607 states and 1030 transitions. Word has length 449
[2024-11-03 01:45:15,682 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:45:15,682 INFO  L471      AbstractCegarLoop]: Abstraction has 607 states and 1030 transitions.
[2024-11-03 01:45:15,683 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66)
[2024-11-03 01:45:15,683 INFO  L276                IsEmpty]: Start isEmpty. Operand 607 states and 1030 transitions.
[2024-11-03 01:45:15,693 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 450
[2024-11-03 01:45:15,693 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:45:15,693 INFO  L215           NwaCegarLoop]: trace histogram [66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:45:15,711 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0
[2024-11-03 01:45:15,894 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 01:45:15,895 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:45:15,895 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:45:15,896 INFO  L85        PathProgramCache]: Analyzing trace with hash -808009856, now seen corresponding path program 1 times
[2024-11-03 01:45:15,896 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:45:15,896 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [580683438]
[2024-11-03 01:45:15,896 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:45:15,896 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:45:15,897 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:45:15,899 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 01:45:15,900 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 01:45:17,421 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:45:17,532 INFO  L255         TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 01:45:17,538 INFO  L278         TraceCheckSpWp]: Computing forward predicates...