/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-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n4_w16_d128_e0.c


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


This is Ultimate 0.2.5-dev-356b6ba-m
[2024-11-01 03:55:58,035 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-01 03:55:58,102 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf
[2024-11-01 03:55:58,110 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-01 03:55:58,110 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-01 03:55:58,135 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-01 03:55:58,138 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-01 03:55:58,139 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-01 03:55:58,139 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-01 03:55:58,140 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-01 03:55:58,141 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-01 03:55:58,141 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-01 03:55:58,143 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-01 03:55:58,143 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-01 03:55:58,143 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-01 03:55:58,144 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-01 03:55:58,144 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-01 03:55:58,145 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-01 03:55:58,145 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-01 03:55:58,145 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-01 03:55:58,145 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-01 03:55:58,146 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-01 03:55:58,146 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-01 03:55:58,146 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-01 03:55:58,147 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-01 03:55:58,147 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-01 03:55:58,147 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-01 03:55:58,147 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-01 03:55:58,147 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-01 03:55:58,147 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-01 03:55:58,148 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-01 03:55:58,148 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-01 03:55:58,148 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-01 03:55:58,148 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-01 03:55:58,148 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-01 03:55:58,148 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-01 03:55:58,149 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt 
[2024-11-01 03:55:58,149 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-01 03:55:58,149 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-01 03:55:58,150 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-01 03:55:58,150 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-01 03:55:58,150 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2024-11-01 03:55:58,150 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-01 03:55:58,401 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-01 03:55:58,417 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-01 03:55:58,419 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-01 03:55:58,420 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-01 03:55:58,420 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-01 03:55:58,421 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n4_w16_d128_e0.c
[2024-11-01 03:55:59,667 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-01 03:56:00,176 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-01 03:56:00,177 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n4_w16_d128_e0.c
[2024-11-01 03:56:00,236 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d5eb3623/0407cc423ad74633af874e3a3f85dab5/FLAG62d083522
[2024-11-01 03:56:00,251 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d5eb3623/0407cc423ad74633af874e3a3f85dab5
[2024-11-01 03:56:00,253 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-01 03:56:00,254 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-01 03:56:00,255 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-01 03:56:00,255 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-01 03:56:00,259 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-01 03:56:00,260 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 03:56:00" (1/1) ...
[2024-11-01 03:56:00,261 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fa1f030 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:56:00, skipping insertion in model container
[2024-11-01 03:56:00,261 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 03:56:00" (1/1) ...
[2024-11-01 03:56:00,404 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-01 03:56:00,693 WARN  L251   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n4_w16_d128_e0.c[1272,1285]
[2024-11-01 03:56:01,459 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-01 03:56:01,469 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-01 03:56:01,479 WARN  L251   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n4_w16_d128_e0.c[1272,1285]
[2024-11-01 03:56:02,048 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-01 03:56:02,064 INFO  L204         MainTranslator]: Completed translation
[2024-11-01 03:56:02,066 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:56:02 WrapperNode
[2024-11-01 03:56:02,066 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-01 03:56:02,067 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-01 03:56:02,067 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-01 03:56:02,067 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-01 03:56:02,072 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:56:02" (1/1) ...
[2024-11-01 03:56:02,208 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:56:02" (1/1) ...
[2024-11-01 03:56:02,696 INFO  L138                Inliner]: procedures = 17, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 16684
[2024-11-01 03:56:02,697 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-01 03:56:02,698 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-01 03:56:02,698 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-01 03:56:02,698 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-01 03:56:02,706 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:56:02" (1/1) ...
[2024-11-01 03:56:02,707 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:56:02" (1/1) ...
[2024-11-01 03:56:02,792 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:56:02" (1/1) ...
[2024-11-01 03:56:02,895 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].
[2024-11-01 03:56:02,896 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:56:02" (1/1) ...
[2024-11-01 03:56:02,896 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:56:02" (1/1) ...
[2024-11-01 03:56:03,091 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:56:02" (1/1) ...
[2024-11-01 03:56:03,111 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:56:02" (1/1) ...
[2024-11-01 03:56:03,145 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:56:02" (1/1) ...
[2024-11-01 03:56:03,179 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:56:02" (1/1) ...
[2024-11-01 03:56:03,244 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-01 03:56:03,246 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-01 03:56:03,246 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-01 03:56:03,246 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-01 03:56:03,247 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:56:02" (1/1) ...
[2024-11-01 03:56:03,251 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-01 03:56:03,259 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-01 03:56:03,274 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)
[2024-11-01 03:56:03,277 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
[2024-11-01 03:56:03,297 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-01 03:56:03,297 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-01 03:56:03,297 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-01 03:56:03,297 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-01 03:56:03,297 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-01 03:56:03,297 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-01 03:56:04,691 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-01 03:56:04,693 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-01 03:56:29,622 INFO  L?                        ?]: Removed 4610 outVars from TransFormulas that were not future-live.
[2024-11-01 03:56:29,623 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-01 03:56:29,630 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-01 03:56:29,630 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-01 03:56:29,631 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 03:56:29 BoogieIcfgContainer
[2024-11-01 03:56:29,631 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-01 03:56:29,632 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-01 03:56:29,633 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-01 03:56:29,635 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-01 03:56:29,635 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.11 03:56:00" (1/3) ...
[2024-11-01 03:56:29,636 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60251eca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 03:56:29, skipping insertion in model container
[2024-11-01 03:56:29,636 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:56:02" (2/3) ...
[2024-11-01 03:56:29,636 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60251eca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 03:56:29, skipping insertion in model container
[2024-11-01 03:56:29,636 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 03:56:29" (3/3) ...
[2024-11-01 03:56:29,637 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.arbitrated_top_n4_w16_d128_e0.c
[2024-11-01 03:56:29,649 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-01 03:56:29,649 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-01 03:56:29,703 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-01 03:56:29,709 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;@7ed54386, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-01 03:56:29,709 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-01 03:56:29,712 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 40 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 25 states have internal predecessors, (28), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13)
[2024-11-01 03:56:29,721 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 84
[2024-11-01 03:56:29,721 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-01 03:56:29,722 INFO  L215           NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-01 03:56:29,723 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-01 03:56:29,727 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-01 03:56:29,728 INFO  L85        PathProgramCache]: Analyzing trace with hash 1644883339, now seen corresponding path program 1 times
[2024-11-01 03:56:29,735 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-01 03:56:29,735 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1817446260]
[2024-11-01 03:56:29,736 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-01 03:56:29,738 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-01 03:56:29,738 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-01 03:56:29,743 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)
[2024-11-01 03:56:29,747 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-01 03:56:33,043 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-01 03:56:33,123 INFO  L255         TraceCheckSpWp]: Trace formula consists of 5405 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-01 03:56:33,163 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-01 03:56:33,200 INFO  L134       CoverageAnalysis]: Checked inductivity of 312 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked.
[2024-11-01 03:56:33,200 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-01 03:56:33,321 INFO  L134       CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked.
[2024-11-01 03:56:33,322 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-01 03:56:33,322 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1817446260]
[2024-11-01 03:56:33,322 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1817446260] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-01 03:56:33,322 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-01 03:56:33,322 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-01 03:56:33,325 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640416992]
[2024-11-01 03:56:33,325 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-01 03:56:33,328 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-01 03:56:33,328 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-01 03:56:33,345 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-01 03:56:33,345 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-01 03:56:33,347 INFO  L87              Difference]: Start difference. First operand  has 40 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 25 states have internal predecessors, (28), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand  has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13)
[2024-11-01 03:56:33,361 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-01 03:56:33,361 INFO  L93              Difference]: Finished difference Result 75 states and 117 transitions.
[2024-11-01 03:56:33,362 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-01 03:56:33,363 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 83
[2024-11-01 03:56:33,363 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-01 03:56:33,368 INFO  L225             Difference]: With dead ends: 75
[2024-11-01 03:56:33,368 INFO  L226             Difference]: Without dead ends: 37
[2024-11-01 03:56:33,371 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-01 03:56:33,375 INFO  L432           NwaCegarLoop]: 49 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, 49 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
[2024-11-01 03:56:33,375 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-01 03:56:33,386 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 37 states.
[2024-11-01 03:56:33,402 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37.
[2024-11-01 03:56:33,403 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 37 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 22 states have internal predecessors, (23), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13)
[2024-11-01 03:56:33,405 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 49 transitions.
[2024-11-01 03:56:33,406 INFO  L78                 Accepts]: Start accepts. Automaton has 37 states and 49 transitions. Word has length 83
[2024-11-01 03:56:33,406 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-01 03:56:33,406 INFO  L471      AbstractCegarLoop]: Abstraction has 37 states and 49 transitions.
[2024-11-01 03:56:33,407 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13)
[2024-11-01 03:56:33,407 INFO  L276                IsEmpty]: Start isEmpty. Operand 37 states and 49 transitions.
[2024-11-01 03:56:33,410 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 84
[2024-11-01 03:56:33,411 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-01 03:56:33,411 INFO  L215           NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-01 03:56:33,453 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-01 03:56:33,611 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
[2024-11-01 03:56:33,612 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-01 03:56:33,613 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-01 03:56:33,613 INFO  L85        PathProgramCache]: Analyzing trace with hash -1385434447, now seen corresponding path program 1 times
[2024-11-01 03:56:33,613 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-01 03:56:33,613 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1348391849]
[2024-11-01 03:56:33,613 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-01 03:56:33,613 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-01 03:56:33,613 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-01 03:56:33,615 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)
[2024-11-01 03:56:33,616 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-01 03:56:36,800 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-01 03:56:36,871 INFO  L255         TraceCheckSpWp]: Trace formula consists of 5405 conjuncts, 19 conjuncts are in the unsatisfiable core
[2024-11-01 03:56:36,903 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-01 03:56:37,448 INFO  L134       CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked.
[2024-11-01 03:56:37,448 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-01 03:56:38,400 INFO  L134       CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked.
[2024-11-01 03:56:38,401 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-01 03:56:38,401 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1348391849]
[2024-11-01 03:56:38,401 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1348391849] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-01 03:56:38,401 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-01 03:56:38,401 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11
[2024-11-01 03:56:38,401 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037933497]
[2024-11-01 03:56:38,402 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-01 03:56:38,403 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-11-01 03:56:38,403 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-01 03:56:38,405 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-11-01 03:56:38,405 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110
[2024-11-01 03:56:38,405 INFO  L87              Difference]: Start difference. First operand 37 states and 49 transitions. Second operand  has 11 states, 9 states have (on average 4.666666666666667) internal successors, (42), 11 states have internal predecessors, (42), 4 states have call successors, (26), 1 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 4 states have call successors, (26)
[2024-11-01 03:56:42,524 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.60s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-01 03:56:43,806 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-01 03:56:43,807 INFO  L93              Difference]: Finished difference Result 67 states and 92 transitions.
[2024-11-01 03:56:43,807 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-01 03:56:43,807 INFO  L78                 Accepts]: Start accepts. Automaton has  has 11 states, 9 states have (on average 4.666666666666667) internal successors, (42), 11 states have internal predecessors, (42), 4 states have call successors, (26), 1 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 4 states have call successors, (26) Word has length 83
[2024-11-01 03:56:43,808 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-01 03:56:43,809 INFO  L225             Difference]: With dead ends: 67
[2024-11-01 03:56:43,809 INFO  L226             Difference]: Without dead ends: 65
[2024-11-01 03:56:43,809 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 154 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110
[2024-11-01 03:56:43,810 INFO  L432           NwaCegarLoop]: 20 mSDtfsCounter, 12 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time
[2024-11-01 03:56:43,810 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 80 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time]
[2024-11-01 03:56:43,811 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 65 states.
[2024-11-01 03:56:43,819 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65.
[2024-11-01 03:56:43,819 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 65 states, 37 states have (on average 1.027027027027027) internal successors, (38), 37 states have internal predecessors, (38), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26)
[2024-11-01 03:56:43,820 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 90 transitions.
[2024-11-01 03:56:43,821 INFO  L78                 Accepts]: Start accepts. Automaton has 65 states and 90 transitions. Word has length 83
[2024-11-01 03:56:43,822 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-01 03:56:43,822 INFO  L471      AbstractCegarLoop]: Abstraction has 65 states and 90 transitions.
[2024-11-01 03:56:43,822 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 11 states, 9 states have (on average 4.666666666666667) internal successors, (42), 11 states have internal predecessors, (42), 4 states have call successors, (26), 1 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 4 states have call successors, (26)
[2024-11-01 03:56:43,822 INFO  L276                IsEmpty]: Start isEmpty. Operand 65 states and 90 transitions.
[2024-11-01 03:56:43,824 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 165
[2024-11-01 03:56:43,824 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-01 03:56:43,824 INFO  L215           NwaCegarLoop]: trace histogram [26, 26, 26, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1]
[2024-11-01 03:56:43,865 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-01 03:56:44,025 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
[2024-11-01 03:56:44,025 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-01 03:56:44,026 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-01 03:56:44,026 INFO  L85        PathProgramCache]: Analyzing trace with hash -2082684701, now seen corresponding path program 1 times
[2024-11-01 03:56:44,026 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-01 03:56:44,027 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [628044526]
[2024-11-01 03:56:44,027 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-01 03:56:44,027 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-01 03:56:44,027 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-01 03:56:44,028 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)
[2024-11-01 03:56:44,029 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-01 03:56:49,265 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-01 03:56:49,427 INFO  L255         TraceCheckSpWp]: Trace formula consists of 10625 conjuncts, 43 conjuncts are in the unsatisfiable core
[2024-11-01 03:56:49,501 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-01 03:56:50,763 INFO  L134       CoverageAnalysis]: Checked inductivity of 1328 backedges. 24 proven. 79 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked.
[2024-11-01 03:56:50,763 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-01 03:56:58,337 INFO  L134       CoverageAnalysis]: Checked inductivity of 1328 backedges. 24 proven. 79 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked.
[2024-11-01 03:56:58,337 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-01 03:56:58,337 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [628044526]
[2024-11-01 03:56:58,337 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [628044526] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-01 03:56:58,337 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-01 03:56:58,338 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17
[2024-11-01 03:56:58,338 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079005481]
[2024-11-01 03:56:58,338 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-01 03:56:58,338 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2024-11-01 03:56:58,339 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-01 03:56:58,339 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2024-11-01 03:56:58,340 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272
[2024-11-01 03:56:58,340 INFO  L87              Difference]: Start difference. First operand 65 states and 90 transitions. Second operand  has 17 states, 15 states have (on average 4.933333333333334) internal successors, (74), 17 states have internal predecessors, (74), 8 states have call successors, (52), 1 states have call predecessors, (52), 2 states have return successors, (52), 6 states have call predecessors, (52), 8 states have call successors, (52)
[2024-11-01 03:57:00,736 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-01 03:57:03,848 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.49s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-01 03:57:06,160 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-01 03:57:09,928 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.90s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-01 03:57:11,190 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-01 03:57:11,365 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-01 03:57:11,366 INFO  L93              Difference]: Finished difference Result 96 states and 134 transitions.
[2024-11-01 03:57:11,366 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2024-11-01 03:57:11,367 INFO  L78                 Accepts]: Start accepts. Automaton has  has 17 states, 15 states have (on average 4.933333333333334) internal successors, (74), 17 states have internal predecessors, (74), 8 states have call successors, (52), 1 states have call predecessors, (52), 2 states have return successors, (52), 6 states have call predecessors, (52), 8 states have call successors, (52) Word has length 164
[2024-11-01 03:57:11,367 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-01 03:57:11,368 INFO  L225             Difference]: With dead ends: 96
[2024-11-01 03:57:11,369 INFO  L226             Difference]: Without dead ends: 94
[2024-11-01 03:57:11,369 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420
[2024-11-01 03:57:11,370 INFO  L432           NwaCegarLoop]: 32 mSDtfsCounter, 11 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time
[2024-11-01 03:57:11,370 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 253 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 12.7s Time]
[2024-11-01 03:57:11,371 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 94 states.
[2024-11-01 03:57:11,379 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94.
[2024-11-01 03:57:11,380 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 94 states, 53 states have (on average 1.0188679245283019) internal successors, (54), 53 states have internal predecessors, (54), 39 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39)
[2024-11-01 03:57:11,381 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 132 transitions.
[2024-11-01 03:57:11,381 INFO  L78                 Accepts]: Start accepts. Automaton has 94 states and 132 transitions. Word has length 164
[2024-11-01 03:57:11,382 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-01 03:57:11,382 INFO  L471      AbstractCegarLoop]: Abstraction has 94 states and 132 transitions.
[2024-11-01 03:57:11,383 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 17 states, 15 states have (on average 4.933333333333334) internal successors, (74), 17 states have internal predecessors, (74), 8 states have call successors, (52), 1 states have call predecessors, (52), 2 states have return successors, (52), 6 states have call predecessors, (52), 8 states have call successors, (52)
[2024-11-01 03:57:11,383 INFO  L276                IsEmpty]: Start isEmpty. Operand 94 states and 132 transitions.
[2024-11-01 03:57:11,386 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 246
[2024-11-01 03:57:11,386 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-01 03:57:11,386 INFO  L215           NwaCegarLoop]: trace histogram [39, 39, 39, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1]
[2024-11-01 03:57:11,448 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-01 03:57:11,587 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
[2024-11-01 03:57:11,587 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-01 03:57:11,588 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-01 03:57:11,588 INFO  L85        PathProgramCache]: Analyzing trace with hash -1116181263, now seen corresponding path program 2 times
[2024-11-01 03:57:11,588 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-01 03:57:11,588 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1325873535]
[2024-11-01 03:57:11,588 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-01 03:57:11,588 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-01 03:57:11,589 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-01 03:57:11,590 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)
[2024-11-01 03:57:11,591 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-01 03:57:21,277 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-01 03:57:21,513 INFO  L255         TraceCheckSpWp]: Trace formula consists of 15845 conjuncts, 144 conjuncts are in the unsatisfiable core
[2024-11-01 03:57:21,604 INFO  L278         TraceCheckSpWp]: Computing forward predicates...