/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'cvc4 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-59.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 01:18:03,564 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 01:18:03,647 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-03 01:18:03,653 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 01:18:03,654 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 01:18:03,684 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 01:18:03,686 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 01:18:03,686 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 01:18:03,687 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 01:18:03,688 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 01:18:03,688 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 01:18:03,689 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 01:18:03,689 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 01:18:03,690 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 01:18:03,690 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 01:18:03,690 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 01:18:03,691 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 01:18:03,691 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 01:18:03,691 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 01:18:03,691 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 01:18:03,692 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 01:18:03,692 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 01:18:03,693 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 01:18:03,693 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 01:18:03,693 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 01:18:03,693 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 01:18:03,694 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 01:18:03,694 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 01:18:03,694 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 01:18:03,697 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 01:18:03,698 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 01:18:03,698 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 01:18:03,698 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 01:18:03,698 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 01:18:03,699 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:18:03,699 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 01:18:03,699 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 01:18:03,699 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 01:18:03,700 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 01:18:03,700 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 01:18:03,700 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 01:18:03,704 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 01:18:03,704 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 01:18:03,704 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 01:18:03,704 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt
[2024-11-03 01:18:03,938 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 01:18:03,966 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 01:18:03,970 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 01:18:03,971 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 01:18:03,971 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 01:18:03,972 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-59.i
[2024-11-03 01:18:05,425 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 01:18:05,651 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 01:18:05,652 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-59.i
[2024-11-03 01:18:05,663 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f608c4071/88676b3437d2478db3508ca6f1ce5d58/FLAGd2280c7a0
[2024-11-03 01:18:06,005 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f608c4071/88676b3437d2478db3508ca6f1ce5d58
[2024-11-03 01:18:06,008 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 01:18:06,009 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 01:18:06,010 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 01:18:06,010 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 01:18:06,016 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 01:18:06,016 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:18:06" (1/1) ...
[2024-11-03 01:18:06,017 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59ed83f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:18:06, skipping insertion in model container
[2024-11-03 01:18:06,018 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:18:06" (1/1) ...
[2024-11-03 01:18:06,067 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 01:18:06,260 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-59.i[916,929]
[2024-11-03 01:18:06,436 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:18:06,453 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 01:18:06,466 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-59.i[916,929]
[2024-11-03 01:18:06,550 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:18:06,572 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 01:18:06,572 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:18:06 WrapperNode
[2024-11-03 01:18:06,572 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 01:18:06,573 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 01:18:06,574 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 01:18:06,574 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 01:18:06,580 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:18:06" (1/1) ...
[2024-11-03 01:18:06,605 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:18:06" (1/1) ...
[2024-11-03 01:18:06,645 INFO  L138                Inliner]: procedures = 27, calls = 60, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 342
[2024-11-03 01:18:06,646 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 01:18:06,646 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 01:18:06,647 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 01:18:06,647 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 01:18:06,657 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:18:06" (1/1) ...
[2024-11-03 01:18:06,658 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:18:06" (1/1) ...
[2024-11-03 01:18:06,665 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:18:06" (1/1) ...
[2024-11-03 01:18:06,691 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-03 01:18:06,691 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:18:06" (1/1) ...
[2024-11-03 01:18:06,692 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:18:06" (1/1) ...
[2024-11-03 01:18:06,709 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:18:06" (1/1) ...
[2024-11-03 01:18:06,714 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:18:06" (1/1) ...
[2024-11-03 01:18:06,718 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:18:06" (1/1) ...
[2024-11-03 01:18:06,721 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:18:06" (1/1) ...
[2024-11-03 01:18:06,728 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 01:18:06,729 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 01:18:06,729 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 01:18:06,729 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 01:18:06,732 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:18:06" (1/1) ...
[2024-11-03 01:18:06,742 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:18:06,755 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 01:18:06,773 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-03 01:18:06,778 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-03 01:18:06,804 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 01:18:06,805 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 01:18:06,805 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 01:18:06,805 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 01:18:06,806 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 01:18:06,806 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 01:18:06,929 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 01:18:06,930 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 01:18:25,787 INFO  L?                        ?]: Removed 47 outVars from TransFormulas that were not future-live.
[2024-11-03 01:18:25,787 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 01:18:25,809 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 01:18:25,810 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 01:18:25,810 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:18:25 BoogieIcfgContainer
[2024-11-03 01:18:25,810 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 01:18:25,815 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 01:18:25,815 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 01:18:25,818 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 01:18:25,818 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:18:06" (1/3) ...
[2024-11-03 01:18:25,819 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@212c9a7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:18:25, skipping insertion in model container
[2024-11-03 01:18:25,819 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:18:06" (2/3) ...
[2024-11-03 01:18:25,820 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@212c9a7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:18:25, skipping insertion in model container
[2024-11-03 01:18:25,820 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:18:25" (3/3) ...
[2024-11-03 01:18:25,821 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-59.i
[2024-11-03 01:18:25,838 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 01:18:25,839 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 01:18:25,912 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 01:18:25,917 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;@606c6ae3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 01:18:25,918 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 01:18:25,923 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 147 states, 97 states have (on average 1.5051546391752577) internal successors, (146), 98 states have internal predecessors, (146), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47)
[2024-11-03 01:18:25,947 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 304
[2024-11-03 01:18:25,948 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:18:25,949 INFO  L215           NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 01:18:25,949 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:18:25,953 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:18:25,954 INFO  L85        PathProgramCache]: Analyzing trace with hash 1638959962, now seen corresponding path program 1 times
[2024-11-03 01:18:25,962 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:18:25,963 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1118027739]
[2024-11-03 01:18:25,963 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:18:25,965 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:18:25,966 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:18:25,968 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 01:18:25,970 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process
[2024-11-03 01:18:27,006 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:18:27,083 INFO  L255         TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 01:18:27,100 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:18:27,194 INFO  L134       CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked.
[2024-11-03 01:18:27,195 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:18:32,282 INFO  L134       CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked.
[2024-11-03 01:18:32,283 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:18:32,284 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1118027739]
[2024-11-03 01:18:32,284 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1118027739] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:18:32,284 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:18:32,285 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 01:18:32,287 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769705730]
[2024-11-03 01:18:32,287 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:18:32,298 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 01:18:32,298 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:18:32,324 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 01:18:32,325 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 01:18:32,328 INFO  L87              Difference]: Start difference. First operand  has 147 states, 97 states have (on average 1.5051546391752577) internal successors, (146), 98 states have internal predecessors, (146), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) Second operand  has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47)
[2024-11-03 01:18:32,388 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:18:32,389 INFO  L93              Difference]: Finished difference Result 287 states and 521 transitions.
[2024-11-03 01:18:32,390 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 01:18:32,391 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) Word has length 303
[2024-11-03 01:18:32,391 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:18:32,399 INFO  L225             Difference]: With dead ends: 287
[2024-11-03 01:18:32,400 INFO  L226             Difference]: Without dead ends: 143
[2024-11-03 01:18:32,404 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 604 GetRequests, 604 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 01:18:32,408 INFO  L432           NwaCegarLoop]: 232 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, 232 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-03 01:18:32,409 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 01:18:32,423 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 143 states.
[2024-11-03 01:18:32,460 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143.
[2024-11-03 01:18:32,464 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 143 states, 94 states have (on average 1.4680851063829787) internal successors, (138), 94 states have internal predecessors, (138), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47)
[2024-11-03 01:18:32,471 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 232 transitions.
[2024-11-03 01:18:32,477 INFO  L78                 Accepts]: Start accepts. Automaton has 143 states and 232 transitions. Word has length 303
[2024-11-03 01:18:32,477 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:18:32,478 INFO  L471      AbstractCegarLoop]: Abstraction has 143 states and 232 transitions.
[2024-11-03 01:18:32,478 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47)
[2024-11-03 01:18:32,478 INFO  L276                IsEmpty]: Start isEmpty. Operand 143 states and 232 transitions.
[2024-11-03 01:18:32,486 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 305
[2024-11-03 01:18:32,487 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:18:32,487 INFO  L215           NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 01:18:32,502 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0
[2024-11-03 01:18:32,688 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 01:18:32,689 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:18:32,689 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:18:32,690 INFO  L85        PathProgramCache]: Analyzing trace with hash -307017930, now seen corresponding path program 1 times
[2024-11-03 01:18:32,690 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:18:32,690 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [689019070]
[2024-11-03 01:18:32,690 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:18:32,691 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:18:32,691 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:18:32,694 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 01:18:32,695 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process
[2024-11-03 01:18:33,604 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:18:33,680 INFO  L255         TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 01:18:33,690 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:18:33,962 INFO  L134       CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked.
[2024-11-03 01:18:33,963 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:18:38,696 INFO  L134       CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked.
[2024-11-03 01:18:38,696 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:18:38,696 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [689019070]
[2024-11-03 01:18:38,696 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [689019070] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:18:38,696 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:18:38,697 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-03 01:18:38,697 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442386972]
[2024-11-03 01:18:38,697 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:18:38,700 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 01:18:38,700 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:18:38,701 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 01:18:38,701 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:18:38,702 INFO  L87              Difference]: Start difference. First operand 143 states and 232 transitions. Second operand  has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47)
[2024-11-03 01:18:44,452 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.58s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:18:48,487 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:18:48,789 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:18:48,790 INFO  L93              Difference]: Finished difference Result 416 states and 676 transitions.
[2024-11-03 01:18:48,791 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 01:18:48,791 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) Word has length 304
[2024-11-03 01:18:48,792 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:18:48,797 INFO  L225             Difference]: With dead ends: 416
[2024-11-03 01:18:48,797 INFO  L226             Difference]: Without dead ends: 276
[2024-11-03 01:18:48,799 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 606 GetRequests, 605 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:18:48,800 INFO  L432           NwaCegarLoop]: 376 mSDtfsCounter, 201 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 21 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time
[2024-11-03 01:18:48,800 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 571 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 34 Invalid, 2 Unknown, 0 Unchecked, 10.0s Time]
[2024-11-03 01:18:48,802 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 276 states.
[2024-11-03 01:18:48,840 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 183.
[2024-11-03 01:18:48,841 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 183 states, 134 states have (on average 1.4701492537313432) internal successors, (197), 134 states have internal predecessors, (197), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47)
[2024-11-03 01:18:48,845 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 291 transitions.
[2024-11-03 01:18:48,847 INFO  L78                 Accepts]: Start accepts. Automaton has 183 states and 291 transitions. Word has length 304
[2024-11-03 01:18:48,850 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:18:48,851 INFO  L471      AbstractCegarLoop]: Abstraction has 183 states and 291 transitions.
[2024-11-03 01:18:48,851 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47)
[2024-11-03 01:18:48,851 INFO  L276                IsEmpty]: Start isEmpty. Operand 183 states and 291 transitions.
[2024-11-03 01:18:48,858 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 305
[2024-11-03 01:18:48,859 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:18:48,859 INFO  L215           NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 01:18:48,871 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0
[2024-11-03 01:18:49,060 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 01:18:49,061 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:18:49,061 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:18:49,062 INFO  L85        PathProgramCache]: Analyzing trace with hash -1586881608, now seen corresponding path program 1 times
[2024-11-03 01:18:49,062 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:18:49,062 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [475028903]
[2024-11-03 01:18:49,062 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:18:49,062 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:18:49,063 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:18:49,064 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 01:18:49,065 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process
[2024-11-03 01:18:49,873 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:18:49,940 INFO  L255         TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 01:18:49,947 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:18:50,500 INFO  L134       CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked.
[2024-11-03 01:18:50,501 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:18:55,515 INFO  L134       CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked.
[2024-11-03 01:18:55,515 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:18:55,515 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [475028903]
[2024-11-03 01:18:55,516 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [475028903] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:18:55,516 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:18:55,516 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-03 01:18:55,516 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146487972]
[2024-11-03 01:18:55,516 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:18:55,517 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 01:18:55,517 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:18:55,518 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 01:18:55,518 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:18:55,519 INFO  L87              Difference]: Start difference. First operand 183 states and 291 transitions. Second operand  has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47)
[2024-11-03 01:19:01,369 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.52s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:19:06,098 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.51s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:19:06,116 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:19:06,117 INFO  L93              Difference]: Finished difference Result 459 states and 729 transitions.
[2024-11-03 01:19:06,324 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 01:19:06,324 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) Word has length 304
[2024-11-03 01:19:06,326 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:19:06,329 INFO  L225             Difference]: With dead ends: 459
[2024-11-03 01:19:06,329 INFO  L226             Difference]: Without dead ends: 279
[2024-11-03 01:19:06,349 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 606 GetRequests, 605 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:19:06,350 INFO  L432           NwaCegarLoop]: 220 mSDtfsCounter, 197 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time
[2024-11-03 01:19:06,350 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 415 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 31 Invalid, 2 Unknown, 0 Unchecked, 10.6s Time]
[2024-11-03 01:19:06,352 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 279 states.
[2024-11-03 01:19:06,384 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 186.
[2024-11-03 01:19:06,385 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 186 states, 137 states have (on average 1.3941605839416058) internal successors, (191), 137 states have internal predecessors, (191), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47)
[2024-11-03 01:19:06,386 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 285 transitions.
[2024-11-03 01:19:06,387 INFO  L78                 Accepts]: Start accepts. Automaton has 186 states and 285 transitions. Word has length 304
[2024-11-03 01:19:06,388 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:19:06,391 INFO  L471      AbstractCegarLoop]: Abstraction has 186 states and 285 transitions.
[2024-11-03 01:19:06,391 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47)
[2024-11-03 01:19:06,391 INFO  L276                IsEmpty]: Start isEmpty. Operand 186 states and 285 transitions.
[2024-11-03 01:19:06,393 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 305
[2024-11-03 01:19:06,393 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:19:06,394 INFO  L215           NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 01:19:06,407 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0
[2024-11-03 01:19:06,594 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 01:19:06,595 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:19:06,595 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:19:06,596 INFO  L85        PathProgramCache]: Analyzing trace with hash 1687126776, now seen corresponding path program 1 times
[2024-11-03 01:19:06,596 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:19:06,596 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [894899084]
[2024-11-03 01:19:06,596 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:19:06,596 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:19:06,597 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:19:06,599 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 01:19:06,600 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process
[2024-11-03 01:19:09,569 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:19:09,610 INFO  L255         TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-03 01:19:09,616 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:19:27,392 INFO  L134       CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked.
[2024-11-03 01:19:27,392 INFO  L311         TraceCheckSpWp]: Computing backward predicates...