/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-96.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-02 21:43:47,251 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-02 21:43:47,326 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 21:43:47,333 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-02 21:43:47,336 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-02 21:43:47,372 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-02 21:43:47,373 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-02 21:43:47,374 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-02 21:43:47,374 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-02 21:43:47,374 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-02 21:43:47,375 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-02 21:43:47,376 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-02 21:43:47,377 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-02 21:43:47,377 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-02 21:43:47,378 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-02 21:43:47,378 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-02 21:43:47,378 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-02 21:43:47,379 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-02 21:43:47,379 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-02 21:43:47,379 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-02 21:43:47,380 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-02 21:43:47,384 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-02 21:43:47,384 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-02 21:43:47,384 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-02 21:43:47,385 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-02 21:43:47,385 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-02 21:43:47,385 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-02 21:43:47,385 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-02 21:43:47,385 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-02 21:43:47,386 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-02 21:43:47,386 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-02 21:43:47,386 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-02 21:43:47,386 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-02 21:43:47,387 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-02 21:43:47,387 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 21:43:47,387 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-02 21:43:47,387 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-02 21:43:47,388 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-02 21:43:47,388 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-02 21:43:47,388 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-02 21:43:47,388 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-02 21:43:47,389 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-02 21:43:47,389 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-02 21:43:47,389 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-02 21:43:47,389 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:43:47,632 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-02 21:43:47,663 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-02 21:43:47,666 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-02 21:43:47,667 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-02 21:43:47,668 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-02 21:43:47,669 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-96.i
[2024-11-02 21:43:49,169 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-02 21:43:49,378 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-02 21:43:49,378 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-96.i
[2024-11-02 21:43:49,391 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca4f51b20/7d63b69833874fac813a24149c453e54/FLAG7f434a341
[2024-11-02 21:43:49,747 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca4f51b20/7d63b69833874fac813a24149c453e54
[2024-11-02 21:43:49,749 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-02 21:43:49,750 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-02 21:43:49,751 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-02 21:43:49,751 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-02 21:43:49,756 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-02 21:43:49,757 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:43:49" (1/1) ...
[2024-11-02 21:43:49,758 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6eecb890 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:43:49, skipping insertion in model container
[2024-11-02 21:43:49,758 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:43:49" (1/1) ...
[2024-11-02 21:43:49,792 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-02 21:43:49,961 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-96.i[916,929]
[2024-11-02 21:43:50,050 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 21:43:50,063 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-02 21:43:50,072 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-96.i[916,929]
[2024-11-02 21:43:50,109 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 21:43:50,127 INFO  L204         MainTranslator]: Completed translation
[2024-11-02 21:43:50,128 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:43:50 WrapperNode
[2024-11-02 21:43:50,128 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-02 21:43:50,129 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-02 21:43:50,129 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-02 21:43:50,129 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-02 21:43:50,136 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:43:50" (1/1) ...
[2024-11-02 21:43:50,153 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:43:50" (1/1) ...
[2024-11-02 21:43:50,186 INFO  L138                Inliner]: procedures = 27, calls = 41, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 213
[2024-11-02 21:43:50,186 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-02 21:43:50,187 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-02 21:43:50,187 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-02 21:43:50,187 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-02 21:43:50,198 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:43:50" (1/1) ...
[2024-11-02 21:43:50,199 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:43:50" (1/1) ...
[2024-11-02 21:43:50,205 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:43:50" (1/1) ...
[2024-11-02 21:43:50,225 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 21:43:50,226 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:43:50" (1/1) ...
[2024-11-02 21:43:50,226 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:43:50" (1/1) ...
[2024-11-02 21:43:50,246 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:43:50" (1/1) ...
[2024-11-02 21:43:50,253 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:43:50" (1/1) ...
[2024-11-02 21:43:50,258 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:43:50" (1/1) ...
[2024-11-02 21:43:50,261 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:43:50" (1/1) ...
[2024-11-02 21:43:50,270 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-02 21:43:50,271 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-02 21:43:50,273 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-02 21:43:50,273 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-02 21:43:50,274 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:43:50" (1/1) ...
[2024-11-02 21:43:50,280 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 21:43:50,290 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:43:50,305 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 21:43:50,308 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 21:43:50,334 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-02 21:43:50,334 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-02 21:43:50,335 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-02 21:43:50,335 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-02 21:43:50,335 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-02 21:43:50,335 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-02 21:43:50,458 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-02 21:43:50,460 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-02 21:43:51,693 INFO  L?                        ?]: Removed 24 outVars from TransFormulas that were not future-live.
[2024-11-02 21:43:51,693 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-02 21:43:51,707 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-02 21:43:51,708 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-02 21:43:51,708 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:43:51 BoogieIcfgContainer
[2024-11-02 21:43:51,708 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-02 21:43:51,710 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-02 21:43:51,710 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-02 21:43:51,713 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-02 21:43:51,713 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:43:49" (1/3) ...
[2024-11-02 21:43:51,714 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@520c502b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:43:51, skipping insertion in model container
[2024-11-02 21:43:51,714 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:43:50" (2/3) ...
[2024-11-02 21:43:51,714 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@520c502b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:43:51, skipping insertion in model container
[2024-11-02 21:43:51,714 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:43:51" (3/3) ...
[2024-11-02 21:43:51,715 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-96.i
[2024-11-02 21:43:51,732 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-02 21:43:51,732 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-02 21:43:51,781 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-02 21:43:51,787 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;@84e0268, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-02 21:43:51,787 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-02 21:43:51,791 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 91 states, 60 states have (on average 1.4333333333333333) internal successors, (86), 61 states have internal predecessors, (86), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28)
[2024-11-02 21:43:51,809 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 184
[2024-11-02 21:43:51,810 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:43:51,811 INFO  L215           NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:43:51,811 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:43:51,816 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:43:51,816 INFO  L85        PathProgramCache]: Analyzing trace with hash -1235426740, now seen corresponding path program 1 times
[2024-11-02 21:43:51,824 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:43:51,825 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1331707710]
[2024-11-02 21:43:51,825 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:43:51,827 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:43:51,827 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:43:51,831 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 21:43:51,834 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 21:43:52,094 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:43:52,110 INFO  L255         TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-02 21:43:52,123 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:43:52,175 INFO  L134       CoverageAnalysis]: Checked inductivity of 1512 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 1458 trivial. 0 not checked.
[2024-11-02 21:43:52,175 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:43:52,344 INFO  L134       CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 1458 trivial. 0 not checked.
[2024-11-02 21:43:52,345 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:43:52,346 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1331707710]
[2024-11-02 21:43:52,347 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1331707710] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 21:43:52,348 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 21:43:52,348 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-02 21:43:52,349 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902411954]
[2024-11-02 21:43:52,350 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 21:43:52,354 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-02 21:43:52,354 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:43:52,377 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-02 21:43:52,378 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-02 21:43:52,380 INFO  L87              Difference]: Start difference. First operand  has 91 states, 60 states have (on average 1.4333333333333333) internal successors, (86), 61 states have internal predecessors, (86), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand  has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 2 states have call successors, (28)
[2024-11-02 21:43:52,408 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:43:52,408 INFO  L93              Difference]: Finished difference Result 175 states and 306 transitions.
[2024-11-02 21:43:52,409 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-02 21:43:52,410 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 2 states have call successors, (28) Word has length 183
[2024-11-02 21:43:52,410 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:43:52,417 INFO  L225             Difference]: With dead ends: 175
[2024-11-02 21:43:52,417 INFO  L226             Difference]: Without dead ends: 87
[2024-11-02 21:43:52,420 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 364 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 21:43:52,423 INFO  L432           NwaCegarLoop]: 135 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, 135 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 21:43:52,424 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-02 21:43:52,440 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 87 states.
[2024-11-02 21:43:52,461 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87.
[2024-11-02 21:43:52,462 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 87 states, 57 states have (on average 1.3859649122807018) internal successors, (79), 57 states have internal predecessors, (79), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28)
[2024-11-02 21:43:52,465 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 135 transitions.
[2024-11-02 21:43:52,468 INFO  L78                 Accepts]: Start accepts. Automaton has 87 states and 135 transitions. Word has length 183
[2024-11-02 21:43:52,468 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:43:52,468 INFO  L471      AbstractCegarLoop]: Abstraction has 87 states and 135 transitions.
[2024-11-02 21:43:52,469 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 2 states have call successors, (28)
[2024-11-02 21:43:52,469 INFO  L276                IsEmpty]: Start isEmpty. Operand 87 states and 135 transitions.
[2024-11-02 21:43:52,474 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 184
[2024-11-02 21:43:52,474 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:43:52,475 INFO  L215           NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:43:52,501 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-02 21:43:52,679 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 21:43:52,680 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:43:52,681 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:43:52,681 INFO  L85        PathProgramCache]: Analyzing trace with hash -1302927532, now seen corresponding path program 1 times
[2024-11-02 21:43:52,681 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:43:52,681 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [357084887]
[2024-11-02 21:43:52,682 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:43:52,682 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:43:52,682 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:43:52,683 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 21:43:52,684 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 21:43:52,881 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:43:52,891 INFO  L255         TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-02 21:43:52,898 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:43:52,973 INFO  L134       CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked.
[2024-11-02 21:43:52,973 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:43:53,148 INFO  L134       CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked.
[2024-11-02 21:43:53,148 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:43:53,148 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [357084887]
[2024-11-02 21:43:53,148 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [357084887] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 21:43:53,149 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 21:43:53,149 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-02 21:43:53,149 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716303017]
[2024-11-02 21:43:53,149 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 21:43:53,153 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-02 21:43:53,153 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:43:53,155 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-02 21:43:53,155 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-02 21:43:53,156 INFO  L87              Difference]: Start difference. First operand 87 states and 135 transitions. Second operand  has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28)
[2024-11-02 21:43:53,738 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:43:53,738 INFO  L93              Difference]: Finished difference Result 203 states and 317 transitions.
[2024-11-02 21:43:53,752 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-02 21:43:53,753 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 183
[2024-11-02 21:43:53,754 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:43:53,756 INFO  L225             Difference]: With dead ends: 203
[2024-11-02 21:43:53,756 INFO  L226             Difference]: Without dead ends: 119
[2024-11-02 21:43:53,757 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 363 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-02 21:43:53,758 INFO  L432           NwaCegarLoop]: 131 mSDtfsCounter, 46 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-02 21:43:53,758 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 249 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-02 21:43:53,759 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 119 states.
[2024-11-02 21:43:53,774 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 98.
[2024-11-02 21:43:53,774 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 98 states, 68 states have (on average 1.3970588235294117) internal successors, (95), 68 states have internal predecessors, (95), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28)
[2024-11-02 21:43:53,776 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 151 transitions.
[2024-11-02 21:43:53,776 INFO  L78                 Accepts]: Start accepts. Automaton has 98 states and 151 transitions. Word has length 183
[2024-11-02 21:43:53,781 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:43:53,781 INFO  L471      AbstractCegarLoop]: Abstraction has 98 states and 151 transitions.
[2024-11-02 21:43:53,781 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28)
[2024-11-02 21:43:53,781 INFO  L276                IsEmpty]: Start isEmpty. Operand 98 states and 151 transitions.
[2024-11-02 21:43:53,786 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 184
[2024-11-02 21:43:53,787 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:43:53,787 INFO  L215           NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:43:53,811 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-02 21:43:53,987 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 21:43:53,988 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:43:53,989 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:43:53,989 INFO  L85        PathProgramCache]: Analyzing trace with hash -23063854, now seen corresponding path program 1 times
[2024-11-02 21:43:53,989 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:43:53,989 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [483005755]
[2024-11-02 21:43:53,989 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:43:53,989 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:43:53,990 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:43:53,991 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 21:43:53,993 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 21:43:54,178 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:43:54,190 INFO  L255         TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-02 21:43:54,195 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:43:55,823 INFO  L134       CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked.
[2024-11-02 21:43:55,823 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:43:56,254 INFO  L134       CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked.
[2024-11-02 21:43:56,254 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:43:56,255 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [483005755]
[2024-11-02 21:43:56,255 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [483005755] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 21:43:56,255 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 21:43:56,255 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8
[2024-11-02 21:43:56,255 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735891846]
[2024-11-02 21:43:56,255 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 21:43:56,256 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-02 21:43:56,256 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:43:56,259 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-02 21:43:56,259 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2024-11-02 21:43:56,260 INFO  L87              Difference]: Start difference. First operand 98 states and 151 transitions. Second operand  has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56)
[2024-11-02 21:43:59,511 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:43:59,512 INFO  L93              Difference]: Finished difference Result 408 states and 628 transitions.
[2024-11-02 21:43:59,535 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-02 21:43:59,536 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 183
[2024-11-02 21:43:59,537 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:43:59,542 INFO  L225             Difference]: With dead ends: 408
[2024-11-02 21:43:59,542 INFO  L226             Difference]: Without dead ends: 313
[2024-11-02 21:43:59,557 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 360 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156
[2024-11-02 21:43:59,559 INFO  L432           NwaCegarLoop]: 140 mSDtfsCounter, 307 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time
[2024-11-02 21:43:59,559 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 738 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time]
[2024-11-02 21:43:59,563 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 313 states.
[2024-11-02 21:43:59,625 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 276.
[2024-11-02 21:43:59,627 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 276 states, 188 states have (on average 1.3829787234042554) internal successors, (260), 188 states have internal predecessors, (260), 84 states have call successors, (84), 3 states have call predecessors, (84), 3 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84)
[2024-11-02 21:43:59,632 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 428 transitions.
[2024-11-02 21:43:59,632 INFO  L78                 Accepts]: Start accepts. Automaton has 276 states and 428 transitions. Word has length 183
[2024-11-02 21:43:59,635 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:43:59,636 INFO  L471      AbstractCegarLoop]: Abstraction has 276 states and 428 transitions.
[2024-11-02 21:43:59,636 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56)
[2024-11-02 21:43:59,636 INFO  L276                IsEmpty]: Start isEmpty. Operand 276 states and 428 transitions.
[2024-11-02 21:43:59,639 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 185
[2024-11-02 21:43:59,643 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:43:59,643 INFO  L215           NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:43:59,673 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 21:43:59,844 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 21:43:59,844 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:43:59,845 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:43:59,845 INFO  L85        PathProgramCache]: Analyzing trace with hash -1590603799, now seen corresponding path program 1 times
[2024-11-02 21:43:59,845 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:43:59,845 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [323447189]
[2024-11-02 21:43:59,846 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:43:59,846 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:43:59,846 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:43:59,848 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 21:43:59,849 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 21:44:00,413 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:44:00,431 INFO  L255         TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 51 conjuncts are in the unsatisfiable core
[2024-11-02 21:44:00,444 INFO  L278         TraceCheckSpWp]: Computing forward predicates...