/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 'z3 -smt2 -in SMTLIB2_COMPLIANT=true' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-70.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-02 21:40:08,751 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-02 21:40:08,828 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-02 21:40:08,835 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-02 21:40:08,836 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-02 21:40:08,867 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-02 21:40:08,868 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-02 21:40:08,868 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-02 21:40:08,869 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-02 21:40:08,870 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-02 21:40:08,870 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-02 21:40:08,871 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-02 21:40:08,871 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-02 21:40:08,871 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-02 21:40:08,872 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-02 21:40:08,872 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-02 21:40:08,872 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-02 21:40:08,873 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-02 21:40:08,874 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-02 21:40:08,874 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-02 21:40:08,875 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-02 21:40:08,875 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-02 21:40:08,875 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-02 21:40:08,875 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-02 21:40:08,876 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-02 21:40:08,876 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-02 21:40:08,876 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-02 21:40:08,876 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-02 21:40:08,876 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-02 21:40:08,876 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-02 21:40:08,877 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-02 21:40:08,877 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-02 21:40:08,877 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-02 21:40:08,877 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-02 21:40:08,877 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 21:40:08,878 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-02 21:40:08,878 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-02 21:40:08,880 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-02 21:40:08,880 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-02 21:40:08,880 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-02 21:40:08,880 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-02 21:40:08,880 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-02 21:40:08,880 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-02 21:40:08,881 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-02 21:40:08,881 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:40:09,079 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-02 21:40:09,103 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-02 21:40:09,105 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-02 21:40:09,105 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-02 21:40:09,106 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-02 21:40:09,107 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-70.i
[2024-11-02 21:40:10,539 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-02 21:40:10,742 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-02 21:40:10,743 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-70.i
[2024-11-02 21:40:10,751 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7b9f5a79/d52187a464174da58fe5a335da40911e/FLAG2df03101c
[2024-11-02 21:40:10,764 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7b9f5a79/d52187a464174da58fe5a335da40911e
[2024-11-02 21:40:10,769 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-02 21:40:10,770 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-02 21:40:10,773 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-02 21:40:10,773 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-02 21:40:10,778 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-02 21:40:10,778 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:40:10" (1/1) ...
[2024-11-02 21:40:10,779 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f67beb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:10, skipping insertion in model container
[2024-11-02 21:40:10,779 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:40:10" (1/1) ...
[2024-11-02 21:40:10,809 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-02 21:40:10,958 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_amount100_file-70.i[916,929]
[2024-11-02 21:40:11,035 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 21:40:11,049 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-02 21:40:11,060 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_amount100_file-70.i[916,929]
[2024-11-02 21:40:11,135 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 21:40:11,158 INFO  L204         MainTranslator]: Completed translation
[2024-11-02 21:40:11,160 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:11 WrapperNode
[2024-11-02 21:40:11,160 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-02 21:40:11,161 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-02 21:40:11,161 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-02 21:40:11,161 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-02 21:40:11,172 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:11" (1/1) ...
[2024-11-02 21:40:11,188 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:11" (1/1) ...
[2024-11-02 21:40:11,228 INFO  L138                Inliner]: procedures = 27, calls = 46, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 216
[2024-11-02 21:40:11,228 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-02 21:40:11,229 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-02 21:40:11,229 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-02 21:40:11,229 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-02 21:40:11,243 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:11" (1/1) ...
[2024-11-02 21:40:11,243 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:11" (1/1) ...
[2024-11-02 21:40:11,257 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:11" (1/1) ...
[2024-11-02 21:40:11,279 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].
[2024-11-02 21:40:11,280 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:11" (1/1) ...
[2024-11-02 21:40:11,280 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:11" (1/1) ...
[2024-11-02 21:40:11,311 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:11" (1/1) ...
[2024-11-02 21:40:11,317 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:11" (1/1) ...
[2024-11-02 21:40:11,320 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:11" (1/1) ...
[2024-11-02 21:40:11,322 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:11" (1/1) ...
[2024-11-02 21:40:11,326 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-02 21:40:11,327 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-02 21:40:11,327 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-02 21:40:11,327 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-02 21:40:11,328 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:11" (1/1) ...
[2024-11-02 21:40:11,335 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 21:40:11,352 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:40:11,371 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)
[2024-11-02 21:40:11,377 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
[2024-11-02 21:40:11,403 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-02 21:40:11,403 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-02 21:40:11,403 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-02 21:40:11,403 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-02 21:40:11,403 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-02 21:40:11,403 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-02 21:40:11,524 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-02 21:40:11,527 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-02 21:40:16,085 INFO  L?                        ?]: Removed 18 outVars from TransFormulas that were not future-live.
[2024-11-02 21:40:16,085 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-02 21:40:16,099 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-02 21:40:16,100 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-02 21:40:16,100 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:40:16 BoogieIcfgContainer
[2024-11-02 21:40:16,100 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-02 21:40:16,107 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-02 21:40:16,107 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-02 21:40:16,111 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-02 21:40:16,111 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:40:10" (1/3) ...
[2024-11-02 21:40:16,112 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38c62d28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:40:16, skipping insertion in model container
[2024-11-02 21:40:16,112 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:11" (2/3) ...
[2024-11-02 21:40:16,112 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38c62d28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:40:16, skipping insertion in model container
[2024-11-02 21:40:16,112 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:40:16" (3/3) ...
[2024-11-02 21:40:16,114 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-70.i
[2024-11-02 21:40:16,131 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-02 21:40:16,131 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-02 21:40:16,194 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-02 21:40:16,200 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;@4c1ba598, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-02 21:40:16,201 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-02 21:40:16,206 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 95 states, 59 states have (on average 1.4067796610169492) internal successors, (83), 60 states have internal predecessors, (83), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33)
[2024-11-02 21:40:16,226 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 211
[2024-11-02 21:40:16,226 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:40:16,227 INFO  L215           NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:40:16,228 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:40:16,232 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:40:16,232 INFO  L85        PathProgramCache]: Analyzing trace with hash -1956773144, now seen corresponding path program 1 times
[2024-11-02 21:40:16,238 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:40:16,239 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1677498876]
[2024-11-02 21:40:16,239 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:40:16,241 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:40:16,241 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:40:16,243 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:40:16,244 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-02 21:40:16,594 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:40:16,628 INFO  L255         TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-02 21:40:16,651 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:40:16,720 INFO  L134       CoverageAnalysis]: Checked inductivity of 2112 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 2048 trivial. 0 not checked.
[2024-11-02 21:40:16,721 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:40:17,264 INFO  L134       CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 2048 trivial. 0 not checked.
[2024-11-02 21:40:17,265 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:40:17,266 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1677498876]
[2024-11-02 21:40:17,266 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1677498876] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 21:40:17,266 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 21:40:17,267 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-02 21:40:17,270 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805812833]
[2024-11-02 21:40:17,271 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 21:40:17,276 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-02 21:40:17,276 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:40:17,304 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-02 21:40:17,305 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-02 21:40:17,307 INFO  L87              Difference]: Start difference. First operand  has 95 states, 59 states have (on average 1.4067796610169492) internal successors, (83), 60 states have internal predecessors, (83), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Second operand  has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 2 states have call successors, (33)
[2024-11-02 21:40:17,336 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:40:17,336 INFO  L93              Difference]: Finished difference Result 183 states and 325 transitions.
[2024-11-02 21:40:17,337 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-02 21:40:17,339 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 2 states have call successors, (33) Word has length 210
[2024-11-02 21:40:17,339 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:40:17,346 INFO  L225             Difference]: With dead ends: 183
[2024-11-02 21:40:17,347 INFO  L226             Difference]: Without dead ends: 91
[2024-11-02 21:40:17,350 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 418 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-02 21:40:17,353 INFO  L432           NwaCegarLoop]: 142 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, 142 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
[2024-11-02 21:40:17,354 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-02 21:40:17,369 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 91 states.
[2024-11-02 21:40:17,399 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91.
[2024-11-02 21:40:17,401 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 91 states, 56 states have (on average 1.3571428571428572) internal successors, (76), 56 states have internal predecessors, (76), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33)
[2024-11-02 21:40:17,405 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 142 transitions.
[2024-11-02 21:40:17,408 INFO  L78                 Accepts]: Start accepts. Automaton has 91 states and 142 transitions. Word has length 210
[2024-11-02 21:40:17,408 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:40:17,408 INFO  L471      AbstractCegarLoop]: Abstraction has 91 states and 142 transitions.
[2024-11-02 21:40:17,409 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 2 states have call successors, (33)
[2024-11-02 21:40:17,409 INFO  L276                IsEmpty]: Start isEmpty. Operand 91 states and 142 transitions.
[2024-11-02 21:40:17,413 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 211
[2024-11-02 21:40:17,413 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:40:17,413 INFO  L215           NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:40:17,440 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-02 21:40:17,614 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:40:17,615 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:40:17,616 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:40:17,616 INFO  L85        PathProgramCache]: Analyzing trace with hash 1072816226, now seen corresponding path program 1 times
[2024-11-02 21:40:17,616 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:40:17,616 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1288788077]
[2024-11-02 21:40:17,616 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:40:17,617 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:40:17,617 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:40:17,619 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:40:17,622 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-02 21:40:17,912 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:40:17,942 INFO  L255         TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-02 21:40:17,950 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:40:19,380 INFO  L134       CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked.
[2024-11-02 21:40:19,380 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:40:20,553 INFO  L134       CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked.
[2024-11-02 21:40:20,554 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:40:20,554 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1288788077]
[2024-11-02 21:40:20,554 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1288788077] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 21:40:20,554 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 21:40:20,554 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8
[2024-11-02 21:40:20,555 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320102457]
[2024-11-02 21:40:20,555 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 21:40:20,558 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-02 21:40:20,558 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:40:20,559 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-02 21:40:20,559 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2024-11-02 21:40:20,559 INFO  L87              Difference]: Start difference. First operand 91 states and 142 transitions. Second operand  has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 2 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66)
[2024-11-02 21:40:24,243 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.32s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:40:28,126 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.83s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:40:32,793 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-02 21:40:34,281 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:40:34,282 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:40:34,282 INFO  L93              Difference]: Finished difference Result 365 states and 571 transitions.
[2024-11-02 21:40:34,324 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-02 21:40:34,324 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 2 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) Word has length 210
[2024-11-02 21:40:34,326 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:40:34,330 INFO  L225             Difference]: With dead ends: 365
[2024-11-02 21:40:34,330 INFO  L226             Difference]: Without dead ends: 277
[2024-11-02 21:40:34,332 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 414 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90
[2024-11-02 21:40:34,334 INFO  L432           NwaCegarLoop]: 232 mSDtfsCounter, 340 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 134 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time
[2024-11-02 21:40:34,335 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 922 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 48 Invalid, 1 Unknown, 0 Unchecked, 13.6s Time]
[2024-11-02 21:40:34,336 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 277 states.
[2024-11-02 21:40:34,395 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 192.
[2024-11-02 21:40:34,396 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 192 states, 123 states have (on average 1.4146341463414633) internal successors, (174), 123 states have internal predecessors, (174), 66 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66)
[2024-11-02 21:40:34,401 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 306 transitions.
[2024-11-02 21:40:34,402 INFO  L78                 Accepts]: Start accepts. Automaton has 192 states and 306 transitions. Word has length 210
[2024-11-02 21:40:34,403 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:40:34,403 INFO  L471      AbstractCegarLoop]: Abstraction has 192 states and 306 transitions.
[2024-11-02 21:40:34,404 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 2 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66)
[2024-11-02 21:40:34,404 INFO  L276                IsEmpty]: Start isEmpty. Operand 192 states and 306 transitions.
[2024-11-02 21:40:34,409 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 211
[2024-11-02 21:40:34,409 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:40:34,413 INFO  L215           NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:40:34,449 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-02 21:40:34,614 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:40:34,614 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:40:34,615 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:40:34,615 INFO  L85        PathProgramCache]: Analyzing trace with hash 263469600, now seen corresponding path program 1 times
[2024-11-02 21:40:34,615 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:40:34,615 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1407734226]
[2024-11-02 21:40:34,616 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:40:34,616 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:40:34,616 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:40:34,618 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:40:34,619 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-02 21:40:34,855 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:40:34,880 INFO  L255         TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-02 21:40:34,885 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:40:36,117 INFO  L134       CoverageAnalysis]: Checked inductivity of 2112 backedges. 746 proven. 75 refuted. 0 times theorem prover too weak. 1291 trivial. 0 not checked.
[2024-11-02 21:40:36,118 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:40:37,531 INFO  L134       CoverageAnalysis]: Checked inductivity of 2112 backedges. 21 proven. 75 refuted. 0 times theorem prover too weak. 2016 trivial. 0 not checked.
[2024-11-02 21:40:37,532 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:40:37,532 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1407734226]
[2024-11-02 21:40:37,532 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1407734226] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-02 21:40:37,533 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-02 21:40:37,533 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10
[2024-11-02 21:40:37,533 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977188484]
[2024-11-02 21:40:37,533 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-02 21:40:37,535 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-02 21:40:37,535 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:40:37,536 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-02 21:40:37,537 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90
[2024-11-02 21:40:37,537 INFO  L87              Difference]: Start difference. First operand 192 states and 306 transitions. Second operand  has 10 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 3 states have call successors, (58), 2 states have call predecessors, (58), 4 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59)
[2024-11-02 21:40:42,670 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.24s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-02 21:40:44,341 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:40:44,342 INFO  L93              Difference]: Finished difference Result 594 states and 932 transitions.
[2024-11-02 21:40:44,342 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. 
[2024-11-02 21:40:44,343 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 3 states have call successors, (58), 2 states have call predecessors, (58), 4 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) Word has length 210
[2024-11-02 21:40:44,343 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:40:44,347 INFO  L225             Difference]: With dead ends: 594
[2024-11-02 21:40:44,347 INFO  L226             Difference]: Without dead ends: 405
[2024-11-02 21:40:44,349 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 412 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=152, Invalid=310, Unknown=0, NotChecked=0, Total=462
[2024-11-02 21:40:44,350 INFO  L432           NwaCegarLoop]: 182 mSDtfsCounter, 287 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time
[2024-11-02 21:40:44,351 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 476 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time]
[2024-11-02 21:40:44,352 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 405 states.
[2024-11-02 21:40:44,404 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 200.
[2024-11-02 21:40:44,405 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 200 states, 129 states have (on average 1.372093023255814) internal successors, (177), 129 states have internal predecessors, (177), 66 states have call successors, (66), 4 states have call predecessors, (66), 4 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66)
[2024-11-02 21:40:44,406 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 309 transitions.
[2024-11-02 21:40:44,407 INFO  L78                 Accepts]: Start accepts. Automaton has 200 states and 309 transitions. Word has length 210
[2024-11-02 21:40:44,407 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:40:44,408 INFO  L471      AbstractCegarLoop]: Abstraction has 200 states and 309 transitions.
[2024-11-02 21:40:44,408 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 3 states have call successors, (58), 2 states have call predecessors, (58), 4 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59)
[2024-11-02 21:40:44,408 INFO  L276                IsEmpty]: Start isEmpty. Operand 200 states and 309 transitions.
[2024-11-02 21:40:44,410 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 212
[2024-11-02 21:40:44,410 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:40:44,410 INFO  L215           NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:40:44,444 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-02 21:40:44,611 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:40:44,612 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:40:44,612 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:40:44,612 INFO  L85        PathProgramCache]: Analyzing trace with hash 966381857, now seen corresponding path program 1 times
[2024-11-02 21:40:44,612 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:40:44,613 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [32024148]
[2024-11-02 21:40:44,613 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:40:44,613 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:40:44,613 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:40:44,615 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:40:44,616 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-02 21:40:44,861 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:40:44,888 INFO  L255         TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-02 21:40:44,894 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:40:49,137 INFO  L134       CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked.
[2024-11-02 21:40:49,137 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:40:51,069 INFO  L134       CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked.
[2024-11-02 21:40:51,069 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:40:51,069 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [32024148]
[2024-11-02 21:40:51,070 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [32024148] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 21:40:51,070 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 21:40:51,070 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8
[2024-11-02 21:40:51,070 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22393558]
[2024-11-02 21:40:51,070 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 21:40:51,071 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-02 21:40:51,071 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:40:51,072 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-02 21:40:51,072 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2024-11-02 21:40:51,072 INFO  L87              Difference]: Start difference. First operand 200 states and 309 transitions. Second operand  has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 2 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66)
[2024-11-02 21:40:54,781 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.76s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:41:00,143 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:41:00,196 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:41:00,197 INFO  L93              Difference]: Finished difference Result 537 states and 832 transitions.
[2024-11-02 21:41:00,238 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-02 21:41:00,239 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 2 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) Word has length 211
[2024-11-02 21:41:00,239 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:41:00,242 INFO  L225             Difference]: With dead ends: 537
[2024-11-02 21:41:00,242 INFO  L226             Difference]: Without dead ends: 340
[2024-11-02 21:41:00,243 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 415 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90
[2024-11-02 21:41:00,244 INFO  L432           NwaCegarLoop]: 141 mSDtfsCounter, 164 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 133 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time
[2024-11-02 21:41:00,244 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 797 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 102 Invalid, 1 Unknown, 0 Unchecked, 8.9s Time]
[2024-11-02 21:41:00,245 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 340 states.
[2024-11-02 21:41:00,303 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 272.
[2024-11-02 21:41:00,304 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 272 states, 166 states have (on average 1.319277108433735) internal successors, (219), 166 states have internal predecessors, (219), 99 states have call successors, (99), 6 states have call predecessors, (99), 6 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99)
[2024-11-02 21:41:00,306 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 417 transitions.
[2024-11-02 21:41:00,307 INFO  L78                 Accepts]: Start accepts. Automaton has 272 states and 417 transitions. Word has length 211
[2024-11-02 21:41:00,307 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:41:00,307 INFO  L471      AbstractCegarLoop]: Abstraction has 272 states and 417 transitions.
[2024-11-02 21:41:00,308 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 2 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66)
[2024-11-02 21:41:00,308 INFO  L276                IsEmpty]: Start isEmpty. Operand 272 states and 417 transitions.
[2024-11-02 21:41:00,310 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 213
[2024-11-02 21:41:00,310 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:41:00,311 INFO  L215           NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:41:00,345 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2024-11-02 21:41:00,511 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:41:00,512 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:41:00,512 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:41:00,512 INFO  L85        PathProgramCache]: Analyzing trace with hash -744540726, now seen corresponding path program 1 times
[2024-11-02 21:41:00,512 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:41:00,512 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1460748682]
[2024-11-02 21:41:00,512 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:41:00,513 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:41:00,513 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:41:00,514 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:41:00,515 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-02 21:41:01,044 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:41:01,074 INFO  L255         TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-02 21:41:01,077 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:41:01,171 INFO  L134       CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked.
[2024-11-02 21:41:01,172 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:41:01,773 INFO  L134       CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked.
[2024-11-02 21:41:01,773 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:41:01,773 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1460748682]
[2024-11-02 21:41:01,773 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1460748682] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 21:41:01,773 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 21:41:01,774 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6
[2024-11-02 21:41:01,774 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892430875]
[2024-11-02 21:41:01,774 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 21:41:01,774 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-02 21:41:01,774 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:41:01,775 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-02 21:41:01,775 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-02 21:41:01,775 INFO  L87              Difference]: Start difference. First operand 272 states and 417 transitions. Second operand  has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33)
[2024-11-02 21:41:06,232 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:41:07,389 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:41:08,032 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:41:08,032 INFO  L93              Difference]: Finished difference Result 666 states and 1029 transitions.
[2024-11-02 21:41:08,036 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-02 21:41:08,037 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 212
[2024-11-02 21:41:08,037 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:41:08,040 INFO  L225             Difference]: With dead ends: 666
[2024-11-02 21:41:08,040 INFO  L226             Difference]: Without dead ends: 469
[2024-11-02 21:41:08,041 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 418 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-02 21:41:08,042 INFO  L432           NwaCegarLoop]: 250 mSDtfsCounter, 129 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time
[2024-11-02 21:41:08,042 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 677 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time]
[2024-11-02 21:41:08,043 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 469 states.
[2024-11-02 21:41:08,111 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 464.
[2024-11-02 21:41:08,112 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 464 states, 288 states have (on average 1.3333333333333333) internal successors, (384), 288 states have internal predecessors, (384), 165 states have call successors, (165), 10 states have call predecessors, (165), 10 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165)
[2024-11-02 21:41:08,115 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 714 transitions.
[2024-11-02 21:41:08,116 INFO  L78                 Accepts]: Start accepts. Automaton has 464 states and 714 transitions. Word has length 212
[2024-11-02 21:41:08,116 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:41:08,116 INFO  L471      AbstractCegarLoop]: Abstraction has 464 states and 714 transitions.
[2024-11-02 21:41:08,117 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33)
[2024-11-02 21:41:08,117 INFO  L276                IsEmpty]: Start isEmpty. Operand 464 states and 714 transitions.
[2024-11-02 21:41:08,119 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 213
[2024-11-02 21:41:08,119 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:41:08,119 INFO  L215           NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:41:08,157 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-11-02 21:41:08,319 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:41:08,320 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:41:08,320 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:41:08,320 INFO  L85        PathProgramCache]: Analyzing trace with hash -742693684, now seen corresponding path program 1 times
[2024-11-02 21:41:08,320 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:41:08,320 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1665348151]
[2024-11-02 21:41:08,321 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:41:08,321 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:41:08,321 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:41:08,322 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:41:08,323 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-02 21:41:09,967 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:41:09,997 INFO  L255         TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 33 conjuncts are in the unsatisfiable core
[2024-11-02 21:41:10,003 INFO  L278         TraceCheckSpWp]: Computing forward predicates...