/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_amount25_file-21.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-02 22:03:15,043 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-02 22:03:15,096 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 22:03:15,099 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-02 22:03:15,100 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-02 22:03:15,113 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-02 22:03:15,113 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-02 22:03:15,114 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-02 22:03:15,114 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-02 22:03:15,114 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-02 22:03:15,115 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-02 22:03:15,115 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-02 22:03:15,115 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-02 22:03:15,115 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-02 22:03:15,116 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-02 22:03:15,116 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-02 22:03:15,116 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-02 22:03:15,116 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-02 22:03:15,117 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-02 22:03:15,117 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-02 22:03:15,117 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-02 22:03:15,119 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-02 22:03:15,120 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-02 22:03:15,120 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-02 22:03:15,120 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-02 22:03:15,120 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-02 22:03:15,120 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-02 22:03:15,121 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-02 22:03:15,121 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-02 22:03:15,121 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-02 22:03:15,121 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-02 22:03:15,121 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-02 22:03:15,122 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-02 22:03:15,122 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-02 22:03:15,122 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 22:03:15,122 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-02 22:03:15,122 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-02 22:03:15,123 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-02 22:03:15,123 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-02 22:03:15,123 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-02 22:03:15,127 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-02 22:03:15,127 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-02 22:03:15,127 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-02 22:03:15,127 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-02 22:03:15,128 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:03:15,309 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-02 22:03:15,325 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-02 22:03:15,327 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-02 22:03:15,328 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-02 22:03:15,328 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-02 22:03:15,329 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-21.i
[2024-11-02 22:03:16,684 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-02 22:03:16,842 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-02 22:03:16,842 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-21.i
[2024-11-02 22:03:16,850 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e98145e12/fbe0f7fabf2247079421c04947bb9e32/FLAG5ef3d918e
[2024-11-02 22:03:16,863 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e98145e12/fbe0f7fabf2247079421c04947bb9e32
[2024-11-02 22:03:16,866 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-02 22:03:16,867 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-02 22:03:16,870 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-02 22:03:16,870 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-02 22:03:16,874 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-02 22:03:16,875 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:03:16" (1/1) ...
[2024-11-02 22:03:16,875 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7169a3f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:03:16, skipping insertion in model container
[2024-11-02 22:03:16,875 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:03:16" (1/1) ...
[2024-11-02 22:03:16,898 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-02 22:03:17,024 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-21.i[915,928]
[2024-11-02 22:03:17,054 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 22:03:17,067 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-02 22:03:17,078 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-21.i[915,928]
[2024-11-02 22:03:17,090 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 22:03:17,106 INFO  L204         MainTranslator]: Completed translation
[2024-11-02 22:03:17,107 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:03:17 WrapperNode
[2024-11-02 22:03:17,107 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-02 22:03:17,108 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-02 22:03:17,108 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-02 22:03:17,108 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-02 22:03:17,114 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:03:17" (1/1) ...
[2024-11-02 22:03:17,123 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:03:17" (1/1) ...
[2024-11-02 22:03:17,139 INFO  L138                Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 91
[2024-11-02 22:03:17,139 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-02 22:03:17,140 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-02 22:03:17,140 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-02 22:03:17,140 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-02 22:03:17,148 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:03:17" (1/1) ...
[2024-11-02 22:03:17,149 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:03:17" (1/1) ...
[2024-11-02 22:03:17,151 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:03:17" (1/1) ...
[2024-11-02 22:03:17,165 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 22:03:17,166 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:03:17" (1/1) ...
[2024-11-02 22:03:17,166 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:03:17" (1/1) ...
[2024-11-02 22:03:17,172 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:03:17" (1/1) ...
[2024-11-02 22:03:17,174 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:03:17" (1/1) ...
[2024-11-02 22:03:17,175 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:03:17" (1/1) ...
[2024-11-02 22:03:17,176 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:03:17" (1/1) ...
[2024-11-02 22:03:17,179 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-02 22:03:17,180 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-02 22:03:17,180 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-02 22:03:17,180 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-02 22:03:17,181 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:03:17" (1/1) ...
[2024-11-02 22:03:17,186 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 22:03:17,196 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:03:17,215 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 22:03:17,217 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 22:03:17,239 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-02 22:03:17,239 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-02 22:03:17,239 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-02 22:03:17,239 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-02 22:03:17,240 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-02 22:03:17,241 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-02 22:03:17,306 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-02 22:03:17,308 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-02 22:03:17,596 INFO  L?                        ?]: Removed 14 outVars from TransFormulas that were not future-live.
[2024-11-02 22:03:17,596 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-02 22:03:17,609 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-02 22:03:17,609 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-02 22:03:17,610 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:03:17 BoogieIcfgContainer
[2024-11-02 22:03:17,610 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-02 22:03:17,614 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-02 22:03:17,614 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-02 22:03:17,617 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-02 22:03:17,617 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 10:03:16" (1/3) ...
[2024-11-02 22:03:17,618 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b4ec02e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:03:17, skipping insertion in model container
[2024-11-02 22:03:17,618 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:03:17" (2/3) ...
[2024-11-02 22:03:17,618 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b4ec02e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:03:17, skipping insertion in model container
[2024-11-02 22:03:17,618 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:03:17" (3/3) ...
[2024-11-02 22:03:17,620 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-21.i
[2024-11-02 22:03:17,634 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-02 22:03:17,635 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-02 22:03:17,689 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-02 22:03:17,694 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;@2c50443e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-02 22:03:17,695 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-02 22:03:17,699 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 41 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 30 states have internal predecessors, (40), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9)
[2024-11-02 22:03:17,705 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2024-11-02 22:03:17,705 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:03:17,706 INFO  L215           NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:03:17,706 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:03:17,710 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:03:17,710 INFO  L85        PathProgramCache]: Analyzing trace with hash 1174544175, now seen corresponding path program 1 times
[2024-11-02 22:03:17,716 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:03:17,716 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1877462513]
[2024-11-02 22:03:17,717 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:03:17,718 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:03:17,718 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:03:17,720 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 22:03:17,721 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 22:03:17,828 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:03:17,832 INFO  L255         TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-02 22:03:17,839 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:03:17,862 INFO  L134       CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked.
[2024-11-02 22:03:17,862 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:03:17,916 INFO  L134       CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked.
[2024-11-02 22:03:17,917 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:03:17,918 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1877462513]
[2024-11-02 22:03:17,918 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1877462513] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 22:03:17,918 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 22:03:17,918 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-02 22:03:17,924 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259934420]
[2024-11-02 22:03:17,925 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 22:03:17,933 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-02 22:03:17,934 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:03:17,954 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-02 22:03:17,954 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-02 22:03:17,956 INFO  L87              Difference]: Start difference. First operand  has 41 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 30 states have internal predecessors, (40), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand  has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9)
[2024-11-02 22:03:17,976 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:03:17,976 INFO  L93              Difference]: Finished difference Result 75 states and 119 transitions.
[2024-11-02 22:03:17,977 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-02 22:03:17,978 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 64
[2024-11-02 22:03:17,978 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:03:17,983 INFO  L225             Difference]: With dead ends: 75
[2024-11-02 22:03:17,984 INFO  L226             Difference]: Without dead ends: 37
[2024-11-02 22:03:17,986 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 126 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 22:03:17,988 INFO  L432           NwaCegarLoop]: 51 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, 51 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 22:03:17,989 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-02 22:03:18,001 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 37 states.
[2024-11-02 22:03:18,015 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37.
[2024-11-02 22:03:18,016 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 37 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 26 states have internal predecessors, (33), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9)
[2024-11-02 22:03:18,017 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions.
[2024-11-02 22:03:18,019 INFO  L78                 Accepts]: Start accepts. Automaton has 37 states and 51 transitions. Word has length 64
[2024-11-02 22:03:18,019 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:03:18,019 INFO  L471      AbstractCegarLoop]: Abstraction has 37 states and 51 transitions.
[2024-11-02 22:03:18,019 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9)
[2024-11-02 22:03:18,019 INFO  L276                IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions.
[2024-11-02 22:03:18,021 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2024-11-02 22:03:18,021 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:03:18,021 INFO  L215           NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:03:18,036 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 22:03:18,222 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 22:03:18,222 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:03:18,223 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:03:18,223 INFO  L85        PathProgramCache]: Analyzing trace with hash -562669323, now seen corresponding path program 1 times
[2024-11-02 22:03:18,223 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:03:18,223 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [512325225]
[2024-11-02 22:03:18,224 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:03:18,224 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:03:18,224 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:03:18,225 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 22:03:18,226 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 22:03:18,307 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:03:18,311 INFO  L255         TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-02 22:03:18,314 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:03:18,500 INFO  L134       CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked.
[2024-11-02 22:03:18,500 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:03:18,586 INFO  L134       CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked.
[2024-11-02 22:03:18,586 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:03:18,587 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [512325225]
[2024-11-02 22:03:18,587 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [512325225] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 22:03:18,587 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 22:03:18,587 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 3] imperfect sequences [] total 6
[2024-11-02 22:03:18,587 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29654270]
[2024-11-02 22:03:18,587 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 22:03:18,588 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-02 22:03:18,588 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:03:18,590 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-02 22:03:18,590 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-02 22:03:18,591 INFO  L87              Difference]: Start difference. First operand 37 states and 51 transitions. Second operand  has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18)
[2024-11-02 22:03:18,809 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:03:18,810 INFO  L93              Difference]: Finished difference Result 116 states and 161 transitions.
[2024-11-02 22:03:18,812 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-02 22:03:18,813 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 64
[2024-11-02 22:03:18,813 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:03:18,814 INFO  L225             Difference]: With dead ends: 116
[2024-11-02 22:03:18,814 INFO  L226             Difference]: Without dead ends: 82
[2024-11-02 22:03:18,815 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2024-11-02 22:03:18,816 INFO  L432           NwaCegarLoop]: 52 mSDtfsCounter, 45 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-02 22:03:18,817 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 165 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-02 22:03:18,820 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 82 states.
[2024-11-02 22:03:18,827 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 37.
[2024-11-02 22:03:18,827 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 37 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9)
[2024-11-02 22:03:18,828 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 50 transitions.
[2024-11-02 22:03:18,830 INFO  L78                 Accepts]: Start accepts. Automaton has 37 states and 50 transitions. Word has length 64
[2024-11-02 22:03:18,832 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:03:18,832 INFO  L471      AbstractCegarLoop]: Abstraction has 37 states and 50 transitions.
[2024-11-02 22:03:18,832 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18)
[2024-11-02 22:03:18,832 INFO  L276                IsEmpty]: Start isEmpty. Operand 37 states and 50 transitions.
[2024-11-02 22:03:18,833 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2024-11-02 22:03:18,833 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:03:18,834 INFO  L215           NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:03:18,849 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 22:03:19,034 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 22:03:19,035 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:03:19,035 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:03:19,035 INFO  L85        PathProgramCache]: Analyzing trace with hash -505411021, now seen corresponding path program 1 times
[2024-11-02 22:03:19,035 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:03:19,036 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [731113670]
[2024-11-02 22:03:19,036 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:03:19,036 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:03:19,036 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:03:19,046 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 22:03:19,100 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 22:03:19,178 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:03:19,184 INFO  L255         TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-11-02 22:03:19,192 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:03:46,900 INFO  L134       CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked.
[2024-11-02 22:03:46,901 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:04:44,682 INFO  L134       CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked.
[2024-11-02 22:04:44,682 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:04:44,682 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [731113670]
[2024-11-02 22:04:44,683 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [731113670] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 22:04:44,683 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 22:04:44,683 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 16
[2024-11-02 22:04:44,683 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74107104]
[2024-11-02 22:04:44,683 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 22:04:44,683 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-02 22:04:44,683 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:04:44,684 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-02 22:04:44,684 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240
[2024-11-02 22:04:44,684 INFO  L87              Difference]: Start difference. First operand 37 states and 50 transitions. Second operand  has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-02 22:04:45,501 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:04:45,502 INFO  L93              Difference]: Finished difference Result 92 states and 113 transitions.
[2024-11-02 22:04:45,502 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-02 22:04:45,502 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 64
[2024-11-02 22:04:45,503 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:04:45,504 INFO  L225             Difference]: With dead ends: 92
[2024-11-02 22:04:45,504 INFO  L226             Difference]: Without dead ends: 90
[2024-11-02 22:04:45,504 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342
[2024-11-02 22:04:45,506 INFO  L432           NwaCegarLoop]: 67 mSDtfsCounter, 70 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-02 22:04:45,506 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 320 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-02 22:04:45,507 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 90 states.
[2024-11-02 22:04:45,516 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 81.
[2024-11-02 22:04:45,516 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 81 states, 58 states have (on average 1.1724137931034482) internal successors, (68), 60 states have internal predecessors, (68), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 16 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-02 22:04:45,517 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 104 transitions.
[2024-11-02 22:04:45,517 INFO  L78                 Accepts]: Start accepts. Automaton has 81 states and 104 transitions. Word has length 64
[2024-11-02 22:04:45,518 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:04:45,518 INFO  L471      AbstractCegarLoop]: Abstraction has 81 states and 104 transitions.
[2024-11-02 22:04:45,518 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-02 22:04:45,518 INFO  L276                IsEmpty]: Start isEmpty. Operand 81 states and 104 transitions.
[2024-11-02 22:04:45,519 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 66
[2024-11-02 22:04:45,519 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:04:45,519 INFO  L215           NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:04:45,533 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-02 22:04:45,719 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 22:04:45,720 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:04:45,721 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:04:45,721 INFO  L85        PathProgramCache]: Analyzing trace with hash 1278414269, now seen corresponding path program 1 times
[2024-11-02 22:04:45,721 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:04:45,742 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [19607823]
[2024-11-02 22:04:45,743 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:04:45,743 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:04:45,743 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:04:45,744 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 22:04:45,745 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 22:04:45,803 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:04:45,805 INFO  L255         TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-11-02 22:04:45,809 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:04:57,569 INFO  L134       CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked.
[2024-11-02 22:04:57,570 INFO  L311         TraceCheckSpWp]: Computing backward predicates...