/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 'cvc5 --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_amount25_file-91.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 05:15:32,972 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 05:15:33,063 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 05:15:33,068 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 05:15:33,070 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 05:15:33,099 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 05:15:33,100 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 05:15:33,100 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 05:15:33,101 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 05:15:33,105 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 05:15:33,105 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 05:15:33,106 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 05:15:33,106 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 05:15:33,107 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 05:15:33,107 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 05:15:33,107 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 05:15:33,107 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 05:15:33,108 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 05:15:33,108 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 05:15:33,112 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 05:15:33,115 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 05:15:33,115 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 05:15:33,115 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 05:15:33,116 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 05:15:33,116 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 05:15:33,116 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 05:15:33,116 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 05:15:33,116 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 05:15:33,117 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 05:15:33,117 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 05:15:33,117 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 05:15:33,117 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 05:15:33,118 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 05:15:33,118 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 05:15:33,118 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 05:15:33,119 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 05:15:33,120 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 05:15:33,120 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 05:15:33,120 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 05:15:33,120 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 05:15:33,120 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 05:15:33,121 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 05:15:33,121 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 05:15:33,121 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 05:15:33,121 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc5 --incremental --print-success --lang smt
[2024-11-03 05:15:33,352 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 05:15:33,381 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 05:15:33,383 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 05:15:33,384 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 05:15:33,384 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 05:15:33,386 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-91.i
[2024-11-03 05:15:34,897 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 05:15:35,089 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 05:15:35,089 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-91.i
[2024-11-03 05:15:35,096 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa75b5efc/177dffc46fef46128600b34531e2ad90/FLAGf9957f099
[2024-11-03 05:15:35,114 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa75b5efc/177dffc46fef46128600b34531e2ad90
[2024-11-03 05:15:35,117 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 05:15:35,118 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 05:15:35,119 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 05:15:35,120 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 05:15:35,125 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 05:15:35,126 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:15:35" (1/1) ...
[2024-11-03 05:15:35,127 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49146ac1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:15:35, skipping insertion in model container
[2024-11-03 05:15:35,127 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:15:35" (1/1) ...
[2024-11-03 05:15:35,158 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 05:15:35,320 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-91.i[915,928]
[2024-11-03 05:15:35,352 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 05:15:35,368 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 05:15:35,378 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-91.i[915,928]
[2024-11-03 05:15:35,397 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 05:15:35,416 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 05:15:35,417 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:15:35 WrapperNode
[2024-11-03 05:15:35,417 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 05:15:35,418 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 05:15:35,418 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 05:15:35,418 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 05:15:35,424 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:15:35" (1/1) ...
[2024-11-03 05:15:35,432 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:15:35" (1/1) ...
[2024-11-03 05:15:35,453 INFO  L138                Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 90
[2024-11-03 05:15:35,453 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 05:15:35,454 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 05:15:35,454 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 05:15:35,454 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 05:15:35,465 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:15:35" (1/1) ...
[2024-11-03 05:15:35,465 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:15:35" (1/1) ...
[2024-11-03 05:15:35,469 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:15:35" (1/1) ...
[2024-11-03 05:15:35,480 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 05:15:35,481 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:15:35" (1/1) ...
[2024-11-03 05:15:35,481 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:15:35" (1/1) ...
[2024-11-03 05:15:35,488 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:15:35" (1/1) ...
[2024-11-03 05:15:35,491 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:15:35" (1/1) ...
[2024-11-03 05:15:35,493 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:15:35" (1/1) ...
[2024-11-03 05:15:35,494 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:15:35" (1/1) ...
[2024-11-03 05:15:35,497 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 05:15:35,502 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 05:15:35,502 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 05:15:35,503 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 05:15:35,504 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:15:35" (1/1) ...
[2024-11-03 05:15:35,509 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 05:15:35,519 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 05:15:35,541 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 05:15:35,549 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 05:15:35,576 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 05:15:35,576 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 05:15:35,577 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 05:15:35,577 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 05:15:35,577 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 05:15:35,579 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 05:15:35,665 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 05:15:35,668 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 05:15:36,044 INFO  L?                        ?]: Removed 8 outVars from TransFormulas that were not future-live.
[2024-11-03 05:15:36,044 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 05:15:36,063 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 05:15:36,063 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 05:15:36,064 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:15:36 BoogieIcfgContainer
[2024-11-03 05:15:36,064 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 05:15:36,067 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 05:15:36,067 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 05:15:36,070 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 05:15:36,070 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:15:35" (1/3) ...
[2024-11-03 05:15:36,071 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a8276a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:15:36, skipping insertion in model container
[2024-11-03 05:15:36,071 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:15:35" (2/3) ...
[2024-11-03 05:15:36,072 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a8276a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:15:36, skipping insertion in model container
[2024-11-03 05:15:36,073 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:15:36" (3/3) ...
[2024-11-03 05:15:36,074 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-91.i
[2024-11-03 05:15:36,091 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 05:15:36,091 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 05:15:36,164 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 05:15:36,172 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;@1d689f89, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 05:15:36,173 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 05:15:36,178 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 42 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 29 states have internal predecessors, (39), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11)
[2024-11-03 05:15:36,188 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 74
[2024-11-03 05:15:36,188 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 05:15:36,190 INFO  L215           NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:36,191 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 05:15:36,197 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 05:15:36,197 INFO  L85        PathProgramCache]: Analyzing trace with hash 1820528867, now seen corresponding path program 1 times
[2024-11-03 05:15:36,207 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 05:15:36,208 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1061233340]
[2024-11-03 05:15:36,208 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 05:15:36,211 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt
[2024-11-03 05:15:36,211 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5
[2024-11-03 05:15:36,215 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 05:15:36,217 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process
[2024-11-03 05:15:36,405 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 05:15:36,413 INFO  L255         TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 49 conjuncts are in the unsatisfiable core
[2024-11-03 05:15:36,441 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 05:15:40,885 INFO  L134       CoverageAnalysis]: Checked inductivity of 220 backedges. 10 proven. 30 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked.
[2024-11-03 05:15:40,885 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 05:15:50,469 INFO  L134       CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked.
[2024-11-03 05:15:50,470 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 05:15:50,470 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1061233340]
[2024-11-03 05:15:50,471 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1061233340] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-03 05:15:50,471 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-03 05:15:50,471 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 18
[2024-11-03 05:15:50,473 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170388241]
[2024-11-03 05:15:50,474 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-03 05:15:50,478 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-03 05:15:50,478 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 05:15:50,500 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-03 05:15:50,501 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306
[2024-11-03 05:15:50,504 INFO  L87              Difference]: Start difference. First operand  has 42 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 29 states have internal predecessors, (39), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand  has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11)
[2024-11-03 05:15:55,488 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 05:15:55,488 INFO  L93              Difference]: Finished difference Result 144 states and 240 transitions.
[2024-11-03 05:15:55,491 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-03 05:15:55,493 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 73
[2024-11-03 05:15:55,493 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 05:15:55,500 INFO  L225             Difference]: With dead ends: 144
[2024-11-03 05:15:55,500 INFO  L226             Difference]: Without dead ends: 105
[2024-11-03 05:15:55,503 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420
[2024-11-03 05:15:55,505 INFO  L432           NwaCegarLoop]: 69 mSDtfsCounter, 126 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time
[2024-11-03 05:15:55,506 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 278 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time]
[2024-11-03 05:15:55,519 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 105 states.
[2024-11-03 05:15:55,547 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 96.
[2024-11-03 05:15:55,549 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 96 states, 62 states have (on average 1.1935483870967742) internal successors, (74), 64 states have internal predecessors, (74), 28 states have call successors, (28), 5 states have call predecessors, (28), 5 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28)
[2024-11-03 05:15:55,551 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 130 transitions.
[2024-11-03 05:15:55,552 INFO  L78                 Accepts]: Start accepts. Automaton has 96 states and 130 transitions. Word has length 73
[2024-11-03 05:15:55,553 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 05:15:55,553 INFO  L471      AbstractCegarLoop]: Abstraction has 96 states and 130 transitions.
[2024-11-03 05:15:55,553 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11)
[2024-11-03 05:15:55,553 INFO  L276                IsEmpty]: Start isEmpty. Operand 96 states and 130 transitions.
[2024-11-03 05:15:55,555 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 74
[2024-11-03 05:15:55,556 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 05:15:55,556 INFO  L215           NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:55,563 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (2)] Ended with exit code 0
[2024-11-03 05:15:55,759 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt
[2024-11-03 05:15:55,759 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 05:15:55,760 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 05:15:55,760 INFO  L85        PathProgramCache]: Analyzing trace with hash 1877787169, now seen corresponding path program 1 times
[2024-11-03 05:15:55,760 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 05:15:55,760 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [595645138]
[2024-11-03 05:15:55,761 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 05:15:55,761 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt
[2024-11-03 05:15:55,761 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5
[2024-11-03 05:15:55,762 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 05:15:55,764 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process
[2024-11-03 05:15:55,867 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 05:15:55,871 INFO  L255         TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 49 conjuncts are in the unsatisfiable core
[2024-11-03 05:15:55,877 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 05:16:02,113 INFO  L134       CoverageAnalysis]: Checked inductivity of 220 backedges. 92 proven. 33 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked.
[2024-11-03 05:16:02,114 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 05:16:11,378 INFO  L134       CoverageAnalysis]: Checked inductivity of 220 backedges. 24 proven. 6 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked.
[2024-11-03 05:16:11,379 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 05:16:11,379 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [595645138]
[2024-11-03 05:16:11,379 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [595645138] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 05:16:11,379 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 05:16:11,379 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 25
[2024-11-03 05:16:11,380 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868304979]
[2024-11-03 05:16:11,380 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 05:16:11,383 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 25 states
[2024-11-03 05:16:11,383 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 05:16:11,384 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants.
[2024-11-03 05:16:11,384 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=473, Unknown=0, NotChecked=0, Total=600
[2024-11-03 05:16:11,385 INFO  L87              Difference]: Start difference. First operand 96 states and 130 transitions. Second operand  has 25 states, 25 states have (on average 2.12) internal successors, (53), 24 states have internal predecessors, (53), 6 states have call successors, (22), 4 states have call predecessors, (22), 6 states have return successors, (22), 5 states have call predecessors, (22), 6 states have call successors, (22)
[2024-11-03 05:16:28,801 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 05:16:28,802 INFO  L93              Difference]: Finished difference Result 438 states and 548 transitions.
[2024-11-03 05:16:28,806 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. 
[2024-11-03 05:16:28,806 INFO  L78                 Accepts]: Start accepts. Automaton has  has 25 states, 25 states have (on average 2.12) internal successors, (53), 24 states have internal predecessors, (53), 6 states have call successors, (22), 4 states have call predecessors, (22), 6 states have return successors, (22), 5 states have call predecessors, (22), 6 states have call successors, (22) Word has length 73
[2024-11-03 05:16:28,807 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 05:16:28,812 INFO  L225             Difference]: With dead ends: 438
[2024-11-03 05:16:28,813 INFO  L226             Difference]: Without dead ends: 345
[2024-11-03 05:16:28,816 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1170 ImplicationChecksByTransitivity, 15.4s TimeCoverageRelationStatistics Valid=840, Invalid=3066, Unknown=0, NotChecked=0, Total=3906
[2024-11-03 05:16:28,817 INFO  L432           NwaCegarLoop]: 61 mSDtfsCounter, 332 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time
[2024-11-03 05:16:28,817 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 452 Invalid, 878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 712 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time]
[2024-11-03 05:16:28,819 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 345 states.
[2024-11-03 05:16:28,870 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 107.
[2024-11-03 05:16:28,871 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 107 states, 75 states have (on average 1.2) internal successors, (90), 75 states have internal predecessors, (90), 22 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22)
[2024-11-03 05:16:28,872 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 134 transitions.
[2024-11-03 05:16:28,872 INFO  L78                 Accepts]: Start accepts. Automaton has 107 states and 134 transitions. Word has length 73
[2024-11-03 05:16:28,873 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 05:16:28,873 INFO  L471      AbstractCegarLoop]: Abstraction has 107 states and 134 transitions.
[2024-11-03 05:16:28,873 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 25 states, 25 states have (on average 2.12) internal successors, (53), 24 states have internal predecessors, (53), 6 states have call successors, (22), 4 states have call predecessors, (22), 6 states have return successors, (22), 5 states have call predecessors, (22), 6 states have call successors, (22)
[2024-11-03 05:16:28,874 INFO  L276                IsEmpty]: Start isEmpty. Operand 107 states and 134 transitions.
[2024-11-03 05:16:28,875 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 75
[2024-11-03 05:16:28,876 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 05:16:28,876 INFO  L215           NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:16:28,882 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0
[2024-11-03 05:16:29,079 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt
[2024-11-03 05:16:29,080 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 05:16:29,080 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 05:16:29,080 INFO  L85        PathProgramCache]: Analyzing trace with hash 368106766, now seen corresponding path program 1 times
[2024-11-03 05:16:29,081 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 05:16:29,081 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [245223105]
[2024-11-03 05:16:29,081 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 05:16:29,081 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt
[2024-11-03 05:16:29,081 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5
[2024-11-03 05:16:29,084 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 05:16:29,085 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process
[2024-11-03 05:16:29,182 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 05:16:29,185 INFO  L255         TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 50 conjuncts are in the unsatisfiable core
[2024-11-03 05:16:29,190 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 05:16:31,782 INFO  L134       CoverageAnalysis]: Checked inductivity of 220 backedges. 10 proven. 30 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked.
[2024-11-03 05:16:31,782 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 05:16:45,085 INFO  L134       CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked.
[2024-11-03 05:16:45,085 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 05:16:45,085 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [245223105]
[2024-11-03 05:16:45,085 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [245223105] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-03 05:16:45,086 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-03 05:16:45,086 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [12] total 20
[2024-11-03 05:16:45,086 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429689686]
[2024-11-03 05:16:45,086 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-03 05:16:45,087 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-03 05:16:45,087 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 05:16:45,087 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-03 05:16:45,088 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380
[2024-11-03 05:16:45,088 INFO  L87              Difference]: Start difference. First operand 107 states and 134 transitions. Second operand  has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11)
[2024-11-03 05:17:01,991 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 05:17:01,992 INFO  L93              Difference]: Finished difference Result 262 states and 323 transitions.
[2024-11-03 05:17:01,997 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2024-11-03 05:17:01,997 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 74
[2024-11-03 05:17:01,998 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 05:17:02,000 INFO  L225             Difference]: With dead ends: 262
[2024-11-03 05:17:02,000 INFO  L226             Difference]: Without dead ends: 260
[2024-11-03 05:17:02,000 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=138, Invalid=462, Unknown=0, NotChecked=0, Total=600
[2024-11-03 05:17:02,001 INFO  L432           NwaCegarLoop]: 68 mSDtfsCounter, 177 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time
[2024-11-03 05:17:02,002 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 282 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 10.2s Time]
[2024-11-03 05:17:02,003 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 260 states.
[2024-11-03 05:17:02,027 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 110.
[2024-11-03 05:17:02,027 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 110 states, 78 states have (on average 1.2307692307692308) internal successors, (96), 78 states have internal predecessors, (96), 22 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22)
[2024-11-03 05:17:02,028 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 140 transitions.
[2024-11-03 05:17:02,029 INFO  L78                 Accepts]: Start accepts. Automaton has 110 states and 140 transitions. Word has length 74
[2024-11-03 05:17:02,032 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 05:17:02,032 INFO  L471      AbstractCegarLoop]: Abstraction has 110 states and 140 transitions.
[2024-11-03 05:17:02,032 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11)
[2024-11-03 05:17:02,032 INFO  L276                IsEmpty]: Start isEmpty. Operand 110 states and 140 transitions.
[2024-11-03 05:17:02,034 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 75
[2024-11-03 05:17:02,034 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 05:17:02,034 INFO  L215           NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:17:02,041 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (4)] Ended with exit code 0
[2024-11-03 05:17:02,234 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt
[2024-11-03 05:17:02,235 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 05:17:02,235 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 05:17:02,236 INFO  L85        PathProgramCache]: Analyzing trace with hash 366259724, now seen corresponding path program 1 times
[2024-11-03 05:17:02,236 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 05:17:02,236 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [174737978]
[2024-11-03 05:17:02,236 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 05:17:02,236 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt
[2024-11-03 05:17:02,236 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5
[2024-11-03 05:17:02,239 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 05:17:02,240 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process
[2024-11-03 05:17:02,336 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 05:17:02,341 INFO  L255         TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 50 conjuncts are in the unsatisfiable core
[2024-11-03 05:17:02,345 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 05:17:05,257 INFO  L134       CoverageAnalysis]: Checked inductivity of 220 backedges. 10 proven. 30 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked.
[2024-11-03 05:17:05,258 INFO  L311         TraceCheckSpWp]: Computing backward predicates...