/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_amount10_file-22.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 04:48:25,522 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 04:48:25,595 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 04:48:25,600 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 04:48:25,600 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 04:48:25,627 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 04:48:25,628 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 04:48:25,628 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 04:48:25,629 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 04:48:25,629 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 04:48:25,629 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 04:48:25,630 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 04:48:25,631 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 04:48:25,632 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 04:48:25,632 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 04:48:25,633 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 04:48:25,633 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 04:48:25,633 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 04:48:25,633 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 04:48:25,634 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 04:48:25,635 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 04:48:25,637 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 04:48:25,637 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 04:48:25,637 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 04:48:25,637 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 04:48:25,637 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 04:48:25,638 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 04:48:25,638 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 04:48:25,638 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 04:48:25,638 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 04:48:25,638 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 04:48:25,639 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 04:48:25,639 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 04:48:25,639 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 04:48:25,639 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 04:48:25,639 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 04:48:25,640 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 04:48:25,640 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 04:48:25,641 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 04:48:25,641 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 04:48:25,641 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 04:48:25,642 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 04:48:25,642 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 04:48:25,642 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 04:48:25,642 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc5 --incremental --print-success --lang smt
[2024-11-03 04:48:25,883 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 04:48:25,907 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 04:48:25,910 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 04:48:25,911 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 04:48:25,912 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 04:48:25,914 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-22.i
[2024-11-03 04:48:27,369 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 04:48:27,554 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 04:48:27,555 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-22.i
[2024-11-03 04:48:27,563 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3eb940e98/badc94f2474749ca9a82a28a791f9515/FLAGdff6ec1cc
[2024-11-03 04:48:27,581 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3eb940e98/badc94f2474749ca9a82a28a791f9515
[2024-11-03 04:48:27,583 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 04:48:27,585 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 04:48:27,586 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 04:48:27,586 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 04:48:27,592 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 04:48:27,593 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:48:27" (1/1) ...
[2024-11-03 04:48:27,594 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@698574a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:48:27, skipping insertion in model container
[2024-11-03 04:48:27,594 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:48:27" (1/1) ...
[2024-11-03 04:48:27,615 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 04:48:27,786 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_amount10_file-22.i[915,928]
[2024-11-03 04:48:27,811 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 04:48:27,824 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 04:48:27,834 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_amount10_file-22.i[915,928]
[2024-11-03 04:48:27,843 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 04:48:27,863 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 04:48:27,863 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:48:27 WrapperNode
[2024-11-03 04:48:27,863 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 04:48:27,865 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 04:48:27,865 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 04:48:27,865 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 04:48:27,875 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:48:27" (1/1) ...
[2024-11-03 04:48:27,886 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:48:27" (1/1) ...
[2024-11-03 04:48:27,910 INFO  L138                Inliner]: procedures = 27, calls = 18, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 62
[2024-11-03 04:48:27,911 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 04:48:27,911 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 04:48:27,911 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 04:48:27,912 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 04:48:27,923 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:48:27" (1/1) ...
[2024-11-03 04:48:27,924 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:48:27" (1/1) ...
[2024-11-03 04:48:27,930 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:48:27" (1/1) ...
[2024-11-03 04:48:27,940 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 04:48:27,941 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:48:27" (1/1) ...
[2024-11-03 04:48:27,941 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:48:27" (1/1) ...
[2024-11-03 04:48:27,948 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:48:27" (1/1) ...
[2024-11-03 04:48:27,951 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:48:27" (1/1) ...
[2024-11-03 04:48:27,953 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:48:27" (1/1) ...
[2024-11-03 04:48:27,954 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:48:27" (1/1) ...
[2024-11-03 04:48:27,957 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 04:48:27,958 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 04:48:27,958 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 04:48:27,958 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 04:48:27,959 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:48:27" (1/1) ...
[2024-11-03 04:48:27,964 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 04:48:27,978 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 04:48:27,995 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 04:48:27,999 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 04:48:28,028 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 04:48:28,029 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 04:48:28,029 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 04:48:28,029 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 04:48:28,029 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 04:48:28,029 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 04:48:28,108 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 04:48:28,113 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 04:48:28,509 INFO  L?                        ?]: Removed 8 outVars from TransFormulas that were not future-live.
[2024-11-03 04:48:28,510 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 04:48:28,521 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 04:48:28,522 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 04:48:28,522 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:48:28 BoogieIcfgContainer
[2024-11-03 04:48:28,522 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 04:48:28,524 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 04:48:28,524 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 04:48:28,528 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 04:48:28,528 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:48:27" (1/3) ...
[2024-11-03 04:48:28,529 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a008736 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:48:28, skipping insertion in model container
[2024-11-03 04:48:28,529 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:48:27" (2/3) ...
[2024-11-03 04:48:28,529 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a008736 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:48:28, skipping insertion in model container
[2024-11-03 04:48:28,529 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:48:28" (3/3) ...
[2024-11-03 04:48:28,530 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-22.i
[2024-11-03 04:48:28,545 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 04:48:28,545 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 04:48:28,605 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 04:48:28,610 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;@1cb9379b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 04:48:28,610 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 04:48:28,613 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 31 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 24 states have internal predecessors, (31), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2024-11-03 04:48:28,619 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2024-11-03 04:48:28,620 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 04:48:28,620 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 1, 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 04:48:28,621 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 04:48:28,625 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 04:48:28,625 INFO  L85        PathProgramCache]: Analyzing trace with hash -706627639, now seen corresponding path program 1 times
[2024-11-03 04:48:28,632 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 04:48:28,632 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [846652380]
[2024-11-03 04:48:28,633 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 04:48:28,634 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt
[2024-11-03 04:48:28,635 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5
[2024-11-03 04:48:28,636 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 04:48:28,638 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 04:48:28,736 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 04:48:28,740 INFO  L255         TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 04:48:28,746 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 04:48:28,776 INFO  L134       CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked.
[2024-11-03 04:48:28,776 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 04:48:28,819 INFO  L134       CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked.
[2024-11-03 04:48:28,820 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 04:48:28,820 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [846652380]
[2024-11-03 04:48:28,821 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [846652380] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-03 04:48:28,824 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-03 04:48:28,824 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-03 04:48:28,826 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529635372]
[2024-11-03 04:48:28,826 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-03 04:48:28,829 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 04:48:28,829 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 04:48:28,850 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 04:48:28,851 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 04:48:28,853 INFO  L87              Difference]: Start difference. First operand  has 31 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 24 states have internal predecessors, (31), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand  has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5)
[2024-11-03 04:48:28,875 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 04:48:28,875 INFO  L93              Difference]: Finished difference Result 55 states and 81 transitions.
[2024-11-03 04:48:28,877 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 04:48:28,879 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 40
[2024-11-03 04:48:28,879 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 04:48:28,887 INFO  L225             Difference]: With dead ends: 55
[2024-11-03 04:48:28,887 INFO  L226             Difference]: Without dead ends: 27
[2024-11-03 04:48:28,891 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 04:48:28,896 INFO  L432           NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-03 04:48:28,897 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 04:48:28,913 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 27 states.
[2024-11-03 04:48:28,934 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27.
[2024-11-03 04:48:28,935 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 27 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2024-11-03 04:48:28,936 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions.
[2024-11-03 04:48:28,939 INFO  L78                 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 40
[2024-11-03 04:48:28,940 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 04:48:28,940 INFO  L471      AbstractCegarLoop]: Abstraction has 27 states and 34 transitions.
[2024-11-03 04:48:28,940 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5)
[2024-11-03 04:48:28,940 INFO  L276                IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions.
[2024-11-03 04:48:28,942 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2024-11-03 04:48:28,942 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 04:48:28,944 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 1, 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 04:48:28,947 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0
[2024-11-03 04:48:29,145 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 04:48:29,146 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 04:48:29,147 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 04:48:29,147 INFO  L85        PathProgramCache]: Analyzing trace with hash -51026809, now seen corresponding path program 1 times
[2024-11-03 04:48:29,147 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 04:48:29,147 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1530342884]
[2024-11-03 04:48:29,148 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 04:48:29,148 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt
[2024-11-03 04:48:29,148 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5
[2024-11-03 04:48:29,149 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 04:48:29,151 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 04:48:29,235 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 04:48:29,242 INFO  L255         TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 20 conjuncts are in the unsatisfiable core
[2024-11-03 04:48:29,251 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 04:48:29,729 INFO  L134       CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked.
[2024-11-03 04:48:29,729 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 04:48:34,803 INFO  L134       CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked.
[2024-11-03 04:48:34,803 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 04:48:34,804 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1530342884]
[2024-11-03 04:48:34,804 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1530342884] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 04:48:34,804 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 04:48:34,804 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4
[2024-11-03 04:48:34,804 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482137544]
[2024-11-03 04:48:34,805 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 04:48:34,806 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-03 04:48:34,806 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 04:48:34,807 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-03 04:48:34,807 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-03 04:48:34,808 INFO  L87              Difference]: Start difference. First operand 27 states and 34 transitions. Second operand  has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10)
[2024-11-03 04:48:35,901 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 04:48:35,901 INFO  L93              Difference]: Finished difference Result 99 states and 127 transitions.
[2024-11-03 04:48:35,905 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-03 04:48:35,905 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 40
[2024-11-03 04:48:35,905 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 04:48:35,907 INFO  L225             Difference]: With dead ends: 99
[2024-11-03 04:48:35,907 INFO  L226             Difference]: Without dead ends: 75
[2024-11-03 04:48:35,908 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 73 SyntacticMatches, 3 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-03 04:48:35,909 INFO  L432           NwaCegarLoop]: 29 mSDtfsCounter, 34 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2024-11-03 04:48:35,909 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 70 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2024-11-03 04:48:35,910 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 75 states.
[2024-11-03 04:48:35,922 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 49.
[2024-11-03 04:48:35,922 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 49 states, 36 states have (on average 1.1944444444444444) internal successors, (43), 36 states have internal predecessors, (43), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10)
[2024-11-03 04:48:35,924 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 63 transitions.
[2024-11-03 04:48:35,924 INFO  L78                 Accepts]: Start accepts. Automaton has 49 states and 63 transitions. Word has length 40
[2024-11-03 04:48:35,924 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 04:48:35,924 INFO  L471      AbstractCegarLoop]: Abstraction has 49 states and 63 transitions.
[2024-11-03 04:48:35,925 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10)
[2024-11-03 04:48:35,925 INFO  L276                IsEmpty]: Start isEmpty. Operand 49 states and 63 transitions.
[2024-11-03 04:48:35,926 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2024-11-03 04:48:35,926 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 04:48:35,926 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 1, 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 04:48:35,930 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (3)] Ended with exit code 0
[2024-11-03 04:48:36,127 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 04:48:36,128 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 04:48:36,129 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 04:48:36,129 INFO  L85        PathProgramCache]: Analyzing trace with hash -49179767, now seen corresponding path program 1 times
[2024-11-03 04:48:36,129 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 04:48:36,129 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1886857319]
[2024-11-03 04:48:36,129 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 04:48:36,130 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt
[2024-11-03 04:48:36,130 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5
[2024-11-03 04:48:36,131 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 04:48:36,132 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 04:48:36,213 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 04:48:36,217 INFO  L255         TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 25 conjuncts are in the unsatisfiable core
[2024-11-03 04:48:36,221 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 04:48:36,946 INFO  L134       CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked.
[2024-11-03 04:48:36,948 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 04:49:24,323 INFO  L134       CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked.
[2024-11-03 04:49:24,324 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 04:49:24,324 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1886857319]
[2024-11-03 04:49:24,324 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1886857319] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 04:49:24,324 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 04:49:24,324 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 8] imperfect sequences [] total 12
[2024-11-03 04:49:24,324 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534518670]
[2024-11-03 04:49:24,325 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 04:49:24,326 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-03 04:49:24,326 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 04:49:24,327 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-03 04:49:24,327 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132
[2024-11-03 04:49:24,328 INFO  L87              Difference]: Start difference. First operand 49 states and 63 transitions. Second operand  has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10)
[2024-11-03 04:49:36,175 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 04:49:36,176 INFO  L93              Difference]: Finished difference Result 94 states and 116 transitions.
[2024-11-03 04:49:36,181 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2024-11-03 04:49:36,181 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 40
[2024-11-03 04:49:36,182 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 04:49:36,183 INFO  L225             Difference]: With dead ends: 94
[2024-11-03 04:49:36,183 INFO  L226             Difference]: Without dead ends: 92
[2024-11-03 04:49:36,183 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 61 SyntacticMatches, 7 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 23.4s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380
[2024-11-03 04:49:36,184 INFO  L432           NwaCegarLoop]: 28 mSDtfsCounter, 93 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time
[2024-11-03 04:49:36,185 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 162 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time]
[2024-11-03 04:49:36,185 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 92 states.
[2024-11-03 04:49:36,195 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 56.
[2024-11-03 04:49:36,196 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 56 states, 42 states have (on average 1.1666666666666667) internal successors, (49), 42 states have internal predecessors, (49), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10)
[2024-11-03 04:49:36,197 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 69 transitions.
[2024-11-03 04:49:36,197 INFO  L78                 Accepts]: Start accepts. Automaton has 56 states and 69 transitions. Word has length 40
[2024-11-03 04:49:36,197 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 04:49:36,197 INFO  L471      AbstractCegarLoop]: Abstraction has 56 states and 69 transitions.
[2024-11-03 04:49:36,198 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10)
[2024-11-03 04:49:36,198 INFO  L276                IsEmpty]: Start isEmpty. Operand 56 states and 69 transitions.
[2024-11-03 04:49:36,199 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2024-11-03 04:49:36,199 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 04:49:36,199 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 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 04:49:36,205 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0
[2024-11-03 04:49:36,403 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 04:49:36,404 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 04:49:36,405 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 04:49:36,405 INFO  L85        PathProgramCache]: Analyzing trace with hash -353344854, now seen corresponding path program 1 times
[2024-11-03 04:49:36,405 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 04:49:36,405 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [913225918]
[2024-11-03 04:49:36,405 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 04:49:36,405 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt
[2024-11-03 04:49:36,405 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5
[2024-11-03 04:49:36,408 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 04:49:36,409 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 04:49:36,496 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 04:49:36,499 INFO  L255         TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 29 conjuncts are in the unsatisfiable core
[2024-11-03 04:49:36,501 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 04:49:38,391 INFO  L134       CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked.
[2024-11-03 04:49:38,391 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 04:49:42,539 INFO  L134       CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked.
[2024-11-03 04:49:42,539 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 04:49:42,539 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [913225918]
[2024-11-03 04:49:42,539 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [913225918] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 04:49:42,540 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 04:49:42,540 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 12
[2024-11-03 04:49:42,540 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752819326]
[2024-11-03 04:49:42,540 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 04:49:42,540 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-03 04:49:42,541 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 04:49:42,541 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-03 04:49:42,543 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132
[2024-11-03 04:49:42,543 INFO  L87              Difference]: Start difference. First operand 56 states and 69 transitions. Second operand  has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10)
[2024-11-03 04:49:55,889 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 04:49:55,890 INFO  L93              Difference]: Finished difference Result 106 states and 122 transitions.
[2024-11-03 04:49:55,894 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. 
[2024-11-03 04:49:55,894 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 41
[2024-11-03 04:49:55,894 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 04:49:55,895 INFO  L225             Difference]: With dead ends: 106
[2024-11-03 04:49:55,896 INFO  L226             Difference]: Without dead ends: 104
[2024-11-03 04:49:55,896 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=140, Invalid=322, Unknown=0, NotChecked=0, Total=462
[2024-11-03 04:49:55,897 INFO  L432           NwaCegarLoop]: 46 mSDtfsCounter, 63 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time
[2024-11-03 04:49:55,897 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 199 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time]
[2024-11-03 04:49:55,898 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 104 states.
[2024-11-03 04:49:55,912 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 72.
[2024-11-03 04:49:55,912 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 72 states, 56 states have (on average 1.1428571428571428) internal successors, (64), 57 states have internal predecessors, (64), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11)
[2024-11-03 04:49:55,913 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 86 transitions.
[2024-11-03 04:49:55,914 INFO  L78                 Accepts]: Start accepts. Automaton has 72 states and 86 transitions. Word has length 41
[2024-11-03 04:49:55,914 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 04:49:55,914 INFO  L471      AbstractCegarLoop]: Abstraction has 72 states and 86 transitions.
[2024-11-03 04:49:55,914 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10)
[2024-11-03 04:49:55,914 INFO  L276                IsEmpty]: Start isEmpty. Operand 72 states and 86 transitions.
[2024-11-03 04:49:55,915 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2024-11-03 04:49:55,915 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 04:49:55,915 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 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 04:49:55,919 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0
[2024-11-03 04:49:56,116 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt
[2024-11-03 04:49:56,116 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 04:49:56,117 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 04:49:56,117 INFO  L85        PathProgramCache]: Analyzing trace with hash -351497812, now seen corresponding path program 1 times
[2024-11-03 04:49:56,117 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 04:49:56,117 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [404681589]
[2024-11-03 04:49:56,117 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 04:49:56,117 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt
[2024-11-03 04:49:56,117 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5
[2024-11-03 04:49:56,118 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 04:49:56,119 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process
[2024-11-03 04:49:56,196 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 04:49:56,199 INFO  L255         TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 28 conjuncts are in the unsatisfiable core
[2024-11-03 04:49:56,202 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 04:49:57,232 INFO  L134       CoverageAnalysis]: Checked inductivity of 40 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked.
[2024-11-03 04:49:57,232 INFO  L311         TraceCheckSpWp]: Computing backward predicates...