/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_n2_w64_d128_e0.c


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


This is Ultimate 0.2.5-dev-356b6ba-m
[2024-11-01 03:53:51,071 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-01 03:53:51,170 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 03:53:51,175 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-01 03:53:51,175 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-01 03:53:51,205 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-01 03:53:51,206 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-01 03:53:51,206 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-01 03:53:51,207 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-01 03:53:51,207 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-01 03:53:51,207 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-01 03:53:51,208 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-01 03:53:51,209 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-01 03:53:51,212 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-01 03:53:51,212 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-01 03:53:51,213 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-01 03:53:51,213 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-01 03:53:51,213 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-01 03:53:51,213 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-01 03:53:51,214 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-01 03:53:51,214 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-01 03:53:51,215 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-01 03:53:51,216 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-01 03:53:51,216 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-01 03:53:51,216 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-01 03:53:51,216 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-01 03:53:51,217 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-01 03:53:51,217 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-01 03:53:51,217 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-01 03:53:51,217 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-01 03:53:51,217 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-01 03:53:51,218 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-01 03:53:51,218 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-01 03:53:51,218 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-01 03:53:51,218 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-01 03:53:51,219 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-01 03:53:51,219 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt 
[2024-11-01 03:53:51,220 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-01 03:53:51,220 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-01 03:53:51,220 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-01 03:53:51,221 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-01 03:53:51,221 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2024-11-01 03:53:51,221 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-01 03:53:51,519 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-01 03:53:51,539 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-01 03:53:51,543 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-01 03:53:51,544 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-01 03:53:51,544 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-01 03:53:51,545 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w64_d128_e0.c
[2024-11-01 03:53:53,009 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-01 03:53:53,512 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-01 03:53:53,513 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w64_d128_e0.c
[2024-11-01 03:53:53,562 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b91ba2d1/95c28edd17eb4bb196f0eba4cd117b23/FLAG98e37ccc2
[2024-11-01 03:53:53,579 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b91ba2d1/95c28edd17eb4bb196f0eba4cd117b23
[2024-11-01 03:53:53,582 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-01 03:53:53,583 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-01 03:53:53,585 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-01 03:53:53,585 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-01 03:53:53,591 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-01 03:53:53,591 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 03:53:53" (1/1) ...
[2024-11-01 03:53:53,592 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a6479e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:53:53, skipping insertion in model container
[2024-11-01 03:53:53,593 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 03:53:53" (1/1) ...
[2024-11-01 03:53:53,713 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-01 03:53:54,007 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_n2_w64_d128_e0.c[1326,1339]
[2024-11-01 03:53:54,814 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-01 03:53:54,823 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-01 03:53:54,833 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_n2_w64_d128_e0.c[1326,1339]
[2024-11-01 03:53:55,302 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-01 03:53:55,319 INFO  L204         MainTranslator]: Completed translation
[2024-11-01 03:53:55,319 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:53:55 WrapperNode
[2024-11-01 03:53:55,320 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-01 03:53:55,321 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-01 03:53:55,321 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-01 03:53:55,321 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-01 03:53:55,331 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:53:55" (1/1) ...
[2024-11-01 03:53:55,462 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:53:55" (1/1) ...
[2024-11-01 03:53:55,796 INFO  L138                Inliner]: procedures = 18, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 9007
[2024-11-01 03:53:55,797 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-01 03:53:55,798 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-01 03:53:55,798 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-01 03:53:55,798 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-01 03:53:55,808 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:53:55" (1/1) ...
[2024-11-01 03:53:55,809 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:53:55" (1/1) ...
[2024-11-01 03:53:55,866 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:53:55" (1/1) ...
[2024-11-01 03:53:56,023 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 03:53:56,024 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:53:55" (1/1) ...
[2024-11-01 03:53:56,024 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:53:55" (1/1) ...
[2024-11-01 03:53:56,142 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:53:55" (1/1) ...
[2024-11-01 03:53:56,165 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:53:55" (1/1) ...
[2024-11-01 03:53:56,190 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:53:55" (1/1) ...
[2024-11-01 03:53:56,219 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:53:55" (1/1) ...
[2024-11-01 03:53:56,269 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-01 03:53:56,271 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-01 03:53:56,271 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-01 03:53:56,271 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-01 03:53:56,272 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:53:55" (1/1) ...
[2024-11-01 03:53:56,277 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-01 03:53:56,287 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-01 03:53:56,302 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 03:53:56,306 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 03:53:56,327 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-01 03:53:56,328 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-01 03:53:56,328 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-01 03:53:56,328 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-01 03:53:56,328 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-01 03:53:56,328 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-01 03:53:57,369 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-01 03:53:57,371 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-01 03:54:07,012 INFO  L?                        ?]: Removed 2681 outVars from TransFormulas that were not future-live.
[2024-11-01 03:54:07,013 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-01 03:54:07,023 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-01 03:54:07,023 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-01 03:54:07,024 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 03:54:07 BoogieIcfgContainer
[2024-11-01 03:54:07,024 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-01 03:54:07,026 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-01 03:54:07,026 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-01 03:54:07,029 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-01 03:54:07,029 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.11 03:53:53" (1/3) ...
[2024-11-01 03:54:07,030 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35663300 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 03:54:07, skipping insertion in model container
[2024-11-01 03:54:07,030 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:53:55" (2/3) ...
[2024-11-01 03:54:07,030 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35663300 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 03:54:07, skipping insertion in model container
[2024-11-01 03:54:07,030 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 03:54:07" (3/3) ...
[2024-11-01 03:54:07,032 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.arbitrated_top_n2_w64_d128_e0.c
[2024-11-01 03:54:07,047 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-01 03:54:07,047 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-01 03:54:07,102 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-01 03:54:07,107 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;@1202f0ca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-01 03:54:07,108 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-01 03:54:07,112 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 28 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 states have internal predecessors, (22), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7)
[2024-11-01 03:54:07,119 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 48
[2024-11-01 03:54:07,119 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-01 03:54:07,120 INFO  L215           NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 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 03:54:07,121 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-01 03:54:07,125 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-01 03:54:07,125 INFO  L85        PathProgramCache]: Analyzing trace with hash -1387212075, now seen corresponding path program 1 times
[2024-11-01 03:54:07,134 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-01 03:54:07,135 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1797817149]
[2024-11-01 03:54:07,135 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-01 03:54:07,137 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-01 03:54:07,137 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-01 03:54:07,140 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 03:54:07,147 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 03:54:09,812 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-01 03:54:09,875 INFO  L255         TraceCheckSpWp]: Trace formula consists of 3209 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-01 03:54:09,902 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-01 03:54:09,930 INFO  L134       CoverageAnalysis]: Checked inductivity of 84 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked.
[2024-11-01 03:54:09,930 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-01 03:54:10,020 INFO  L134       CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked.
[2024-11-01 03:54:10,021 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-01 03:54:10,022 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1797817149]
[2024-11-01 03:54:10,022 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1797817149] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-01 03:54:10,022 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-01 03:54:10,023 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-01 03:54:10,026 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017180668]
[2024-11-01 03:54:10,026 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-01 03:54:10,030 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-01 03:54:10,030 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-01 03:54:10,052 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-01 03:54:10,052 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-01 03:54:10,054 INFO  L87              Difference]: Start difference. First operand  has 28 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 states have internal predecessors, (22), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand  has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7)
[2024-11-01 03:54:10,071 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-01 03:54:10,071 INFO  L93              Difference]: Finished difference Result 51 states and 75 transitions.
[2024-11-01 03:54:10,072 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-01 03:54:10,073 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 47
[2024-11-01 03:54:10,074 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-01 03:54:10,079 INFO  L225             Difference]: With dead ends: 51
[2024-11-01 03:54:10,080 INFO  L226             Difference]: Without dead ends: 25
[2024-11-01 03:54:10,082 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 92 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 03:54:10,085 INFO  L432           NwaCegarLoop]: 31 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, 31 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 03:54:10,086 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-01 03:54:10,102 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25 states.
[2024-11-01 03:54:10,121 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25.
[2024-11-01 03:54:10,122 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 25 states, 16 states have (on average 1.0625) internal successors, (17), 16 states have internal predecessors, (17), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7)
[2024-11-01 03:54:10,123 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions.
[2024-11-01 03:54:10,125 INFO  L78                 Accepts]: Start accepts. Automaton has 25 states and 31 transitions. Word has length 47
[2024-11-01 03:54:10,126 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-01 03:54:10,126 INFO  L471      AbstractCegarLoop]: Abstraction has 25 states and 31 transitions.
[2024-11-01 03:54:10,126 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7)
[2024-11-01 03:54:10,126 INFO  L276                IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions.
[2024-11-01 03:54:10,129 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 48
[2024-11-01 03:54:10,130 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-01 03:54:10,130 INFO  L215           NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 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 03:54:10,175 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 03:54:10,330 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 03:54:10,331 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-01 03:54:10,332 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-01 03:54:10,332 INFO  L85        PathProgramCache]: Analyzing trace with hash 971432711, now seen corresponding path program 1 times
[2024-11-01 03:54:10,332 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-01 03:54:10,333 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [222760356]
[2024-11-01 03:54:10,333 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-01 03:54:10,333 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-01 03:54:10,333 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-01 03:54:10,335 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 03:54:10,336 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 03:54:12,643 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-01 03:54:12,712 INFO  L255         TraceCheckSpWp]: Trace formula consists of 3209 conjuncts, 20 conjuncts are in the unsatisfiable core
[2024-11-01 03:54:12,733 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-01 03:54:13,358 INFO  L134       CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked.
[2024-11-01 03:54:13,359 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-01 03:54:14,526 INFO  L134       CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked.
[2024-11-01 03:54:14,527 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-01 03:54:14,527 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [222760356]
[2024-11-01 03:54:14,527 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [222760356] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-01 03:54:14,527 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-01 03:54:14,528 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11
[2024-11-01 03:54:14,528 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051120864]
[2024-11-01 03:54:14,528 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-01 03:54:14,529 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-11-01 03:54:14,529 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-01 03:54:14,530 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-11-01 03:54:14,531 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110
[2024-11-01 03:54:14,531 INFO  L87              Difference]: Start difference. First operand 25 states and 31 transitions. Second operand  has 11 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 11 states have internal predecessors, (30), 4 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 4 states have call successors, (14)
[2024-11-01 03:54:18,752 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-01 03:54:19,771 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-01 03:54:19,772 INFO  L93              Difference]: Finished difference Result 43 states and 56 transitions.
[2024-11-01 03:54:19,773 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-01 03:54:19,773 INFO  L78                 Accepts]: Start accepts. Automaton has  has 11 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 11 states have internal predecessors, (30), 4 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 4 states have call successors, (14) Word has length 47
[2024-11-01 03:54:19,775 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-01 03:54:19,776 INFO  L225             Difference]: With dead ends: 43
[2024-11-01 03:54:19,776 INFO  L226             Difference]: Without dead ends: 41
[2024-11-01 03:54:19,776 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 82 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110
[2024-11-01 03:54:19,780 INFO  L432           NwaCegarLoop]: 14 mSDtfsCounter, 6 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time
[2024-11-01 03:54:19,781 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 78 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time]
[2024-11-01 03:54:19,782 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 41 states.
[2024-11-01 03:54:19,790 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41.
[2024-11-01 03:54:19,790 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 41 states, 25 states have (on average 1.04) internal successors, (26), 25 states have internal predecessors, (26), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14)
[2024-11-01 03:54:19,792 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 54 transitions.
[2024-11-01 03:54:19,792 INFO  L78                 Accepts]: Start accepts. Automaton has 41 states and 54 transitions. Word has length 47
[2024-11-01 03:54:19,793 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-01 03:54:19,794 INFO  L471      AbstractCegarLoop]: Abstraction has 41 states and 54 transitions.
[2024-11-01 03:54:19,794 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 11 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 11 states have internal predecessors, (30), 4 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 4 states have call successors, (14)
[2024-11-01 03:54:19,794 INFO  L276                IsEmpty]: Start isEmpty. Operand 41 states and 54 transitions.
[2024-11-01 03:54:19,798 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 93
[2024-11-01 03:54:19,798 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-01 03:54:19,798 INFO  L215           NwaCegarLoop]: trace histogram [14, 14, 14, 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 03:54:19,850 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 03:54:19,999 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 03:54:19,999 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-01 03:54:20,000 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-01 03:54:20,000 INFO  L85        PathProgramCache]: Analyzing trace with hash 815302051, now seen corresponding path program 1 times
[2024-11-01 03:54:20,000 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-01 03:54:20,000 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1534607755]
[2024-11-01 03:54:20,001 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-01 03:54:20,001 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-01 03:54:20,001 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-01 03:54:20,003 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 03:54:20,005 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 03:54:24,065 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-01 03:54:24,194 INFO  L255         TraceCheckSpWp]: Trace formula consists of 6141 conjuncts, 43 conjuncts are in the unsatisfiable core
[2024-11-01 03:54:24,257 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-01 03:54:26,133 INFO  L134       CoverageAnalysis]: Checked inductivity of 380 backedges. 12 proven. 43 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked.
[2024-11-01 03:54:26,134 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-01 03:54:34,912 INFO  L134       CoverageAnalysis]: Checked inductivity of 380 backedges. 12 proven. 43 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked.
[2024-11-01 03:54:34,912 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-01 03:54:34,912 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1534607755]
[2024-11-01 03:54:34,913 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1534607755] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-01 03:54:34,913 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-01 03:54:34,913 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17
[2024-11-01 03:54:34,913 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844112308]
[2024-11-01 03:54:34,913 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-01 03:54:34,914 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2024-11-01 03:54:34,914 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-01 03:54:34,915 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2024-11-01 03:54:34,916 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272
[2024-11-01 03:54:34,916 INFO  L87              Difference]: Start difference. First operand 41 states and 54 transitions. Second operand  has 17 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 17 states have internal predecessors, (50), 8 states have call successors, (28), 1 states have call predecessors, (28), 2 states have return successors, (28), 6 states have call predecessors, (28), 8 states have call successors, (28)
[2024-11-01 03:54:42,058 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.36s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-01 03:54:49,742 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.22s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-01 03:54:50,813 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-01 03:54:50,813 INFO  L93              Difference]: Finished difference Result 60 states and 80 transitions.
[2024-11-01 03:54:50,814 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2024-11-01 03:54:50,814 INFO  L78                 Accepts]: Start accepts. Automaton has  has 17 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 17 states have internal predecessors, (50), 8 states have call successors, (28), 1 states have call predecessors, (28), 2 states have return successors, (28), 6 states have call predecessors, (28), 8 states have call successors, (28) Word has length 92
[2024-11-01 03:54:50,815 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-01 03:54:50,816 INFO  L225             Difference]: With dead ends: 60
[2024-11-01 03:54:50,816 INFO  L226             Difference]: Without dead ends: 58
[2024-11-01 03:54:50,816 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420
[2024-11-01 03:54:50,817 INFO  L432           NwaCegarLoop]: 20 mSDtfsCounter, 7 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time
[2024-11-01 03:54:50,818 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 203 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 15.3s Time]
[2024-11-01 03:54:50,818 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 58 states.
[2024-11-01 03:54:50,830 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58.
[2024-11-01 03:54:50,830 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 58 states, 35 states have (on average 1.0285714285714285) internal successors, (36), 35 states have internal predecessors, (36), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21)
[2024-11-01 03:54:50,834 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 78 transitions.
[2024-11-01 03:54:50,834 INFO  L78                 Accepts]: Start accepts. Automaton has 58 states and 78 transitions. Word has length 92
[2024-11-01 03:54:50,835 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-01 03:54:50,835 INFO  L471      AbstractCegarLoop]: Abstraction has 58 states and 78 transitions.
[2024-11-01 03:54:50,835 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 17 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 17 states have internal predecessors, (50), 8 states have call successors, (28), 1 states have call predecessors, (28), 2 states have return successors, (28), 6 states have call predecessors, (28), 8 states have call successors, (28)
[2024-11-01 03:54:50,835 INFO  L276                IsEmpty]: Start isEmpty. Operand 58 states and 78 transitions.
[2024-11-01 03:54:50,837 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 138
[2024-11-01 03:54:50,839 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-01 03:54:50,840 INFO  L215           NwaCegarLoop]: trace histogram [21, 21, 21, 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 03:54:50,915 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-01 03:54:51,040 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 03:54:51,041 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-01 03:54:51,042 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-01 03:54:51,042 INFO  L85        PathProgramCache]: Analyzing trace with hash -1845464953, now seen corresponding path program 2 times
[2024-11-01 03:54:51,042 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-01 03:54:51,042 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [124575193]
[2024-11-01 03:54:51,042 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-01 03:54:51,042 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-01 03:54:51,043 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-01 03:54:51,044 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 03:54:51,044 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 03:54:59,855 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-01 03:55:00,068 INFO  L255         TraceCheckSpWp]: Trace formula consists of 9073 conjuncts, 120 conjuncts are in the unsatisfiable core
[2024-11-01 03:55:00,137 INFO  L278         TraceCheckSpWp]: Computing forward predicates...