/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'z3 -smt2 -in SMTLIB2_COMPLIANT=true' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-34.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-02 22:29:57,400 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-02 22:29:57,456 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-02 22:29:57,461 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-02 22:29:57,462 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-02 22:29:57,487 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-02 22:29:57,488 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-02 22:29:57,489 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-02 22:29:57,489 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-02 22:29:57,491 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-02 22:29:57,491 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-02 22:29:57,491 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-02 22:29:57,491 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-02 22:29:57,492 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-02 22:29:57,492 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-02 22:29:57,494 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-02 22:29:57,495 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-02 22:29:57,495 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-02 22:29:57,495 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-02 22:29:57,495 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-02 22:29:57,495 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-02 22:29:57,497 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-02 22:29:57,497 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-02 22:29:57,497 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-02 22:29:57,497 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-02 22:29:57,497 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-02 22:29:57,497 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-02 22:29:57,497 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-02 22:29:57,498 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-02 22:29:57,498 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-02 22:29:57,498 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-02 22:29:57,498 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-02 22:29:57,498 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-02 22:29:57,498 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-02 22:29:57,498 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 22:29:57,499 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-02 22:29:57,499 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-02 22:29:57,499 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-02 22:29:57,499 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-02 22:29:57,499 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-02 22:29:57,499 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-02 22:29:57,500 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-02 22:29:57,500 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-02 22:29:57,500 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-02 22:29:57,501 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:29:57,719 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-02 22:29:57,746 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-02 22:29:57,750 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-02 22:29:57,750 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-02 22:29:57,751 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-02 22:29:57,752 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-34.i
[2024-11-02 22:29:59,137 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-02 22:29:59,316 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-02 22:29:59,316 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-34.i
[2024-11-02 22:29:59,329 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ecbd7c0b/4fb52c4b8cc34ed199b277551bf1ccc3/FLAG4ecde8c4c
[2024-11-02 22:29:59,345 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ecbd7c0b/4fb52c4b8cc34ed199b277551bf1ccc3
[2024-11-02 22:29:59,347 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-02 22:29:59,348 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-02 22:29:59,350 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-02 22:29:59,350 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-02 22:29:59,357 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-02 22:29:59,358 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:29:59" (1/1) ...
[2024-11-02 22:29:59,358 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d5aa269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:29:59, skipping insertion in model container
[2024-11-02 22:29:59,359 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:29:59" (1/1) ...
[2024-11-02 22:29:59,383 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-02 22:29:59,524 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-34.i[915,928]
[2024-11-02 22:29:59,557 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 22:29:59,570 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-02 22:29:59,580 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-34.i[915,928]
[2024-11-02 22:29:59,598 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 22:29:59,616 INFO  L204         MainTranslator]: Completed translation
[2024-11-02 22:29:59,616 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:29:59 WrapperNode
[2024-11-02 22:29:59,617 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-02 22:29:59,617 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-02 22:29:59,618 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-02 22:29:59,618 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-02 22:29:59,623 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:29:59" (1/1) ...
[2024-11-02 22:29:59,631 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:29:59" (1/1) ...
[2024-11-02 22:29:59,647 INFO  L138                Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 124
[2024-11-02 22:29:59,648 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-02 22:29:59,648 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-02 22:29:59,649 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-02 22:29:59,649 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-02 22:29:59,658 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:29:59" (1/1) ...
[2024-11-02 22:29:59,658 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:29:59" (1/1) ...
[2024-11-02 22:29:59,661 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:29:59" (1/1) ...
[2024-11-02 22:29:59,671 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-02 22:29:59,672 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:29:59" (1/1) ...
[2024-11-02 22:29:59,672 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:29:59" (1/1) ...
[2024-11-02 22:29:59,677 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:29:59" (1/1) ...
[2024-11-02 22:29:59,680 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:29:59" (1/1) ...
[2024-11-02 22:29:59,682 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:29:59" (1/1) ...
[2024-11-02 22:29:59,683 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:29:59" (1/1) ...
[2024-11-02 22:29:59,685 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-02 22:29:59,686 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-02 22:29:59,686 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-02 22:29:59,686 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-02 22:29:59,687 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:29:59" (1/1) ...
[2024-11-02 22:29:59,690 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 22:29:59,703 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:29:59,715 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-02 22:29:59,718 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-02 22:29:59,737 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-02 22:29:59,737 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-02 22:29:59,738 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-02 22:29:59,738 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-02 22:29:59,738 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-02 22:29:59,738 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-02 22:29:59,799 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-02 22:29:59,800 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-02 22:30:00,082 INFO  L?                        ?]: Removed 22 outVars from TransFormulas that were not future-live.
[2024-11-02 22:30:00,082 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-02 22:30:00,096 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-02 22:30:00,096 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-02 22:30:00,097 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:30:00 BoogieIcfgContainer
[2024-11-02 22:30:00,097 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-02 22:30:00,098 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-02 22:30:00,099 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-02 22:30:00,101 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-02 22:30:00,101 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 10:29:59" (1/3) ...
[2024-11-02 22:30:00,102 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b639ddf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:30:00, skipping insertion in model container
[2024-11-02 22:30:00,102 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:29:59" (2/3) ...
[2024-11-02 22:30:00,102 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b639ddf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:30:00, skipping insertion in model container
[2024-11-02 22:30:00,102 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:30:00" (3/3) ...
[2024-11-02 22:30:00,103 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-34.i
[2024-11-02 22:30:00,117 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-02 22:30:00,117 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-02 22:30:00,164 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-02 22:30:00,169 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;@1e59c5a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-02 22:30:00,169 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-02 22:30:00,172 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 52 states, 36 states have (on average 1.4444444444444444) internal successors, (52), 37 states have internal predecessors, (52), 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)
[2024-11-02 22:30:00,180 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 91
[2024-11-02 22:30:00,180 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:30:00,181 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, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 22:30:00,181 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:30:00,185 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:30:00,185 INFO  L85        PathProgramCache]: Analyzing trace with hash 945974761, now seen corresponding path program 1 times
[2024-11-02 22:30:00,192 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:30:00,192 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1438267069]
[2024-11-02 22:30:00,193 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:30:00,194 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:30:00,194 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:30:00,197 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 22:30:00,198 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-02 22:30:00,327 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:30:00,333 INFO  L255         TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-02 22:30:00,341 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:30:00,370 INFO  L134       CoverageAnalysis]: Checked inductivity of 312 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked.
[2024-11-02 22:30:00,371 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:30:00,463 INFO  L134       CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked.
[2024-11-02 22:30:00,463 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:30:00,464 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1438267069]
[2024-11-02 22:30:00,464 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1438267069] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 22:30:00,464 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 22:30:00,464 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-02 22:30:00,465 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281848106]
[2024-11-02 22:30:00,466 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 22:30:00,469 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-02 22:30:00,469 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:30:00,483 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-02 22:30:00,483 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-02 22:30:00,485 INFO  L87              Difference]: Start difference. First operand  has 52 states, 36 states have (on average 1.4444444444444444) internal successors, (52), 37 states have internal predecessors, (52), 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 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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)
[2024-11-02 22:30:00,505 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:30:00,505 INFO  L93              Difference]: Finished difference Result 97 states and 163 transitions.
[2024-11-02 22:30:00,506 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-02 22:30:00,507 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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 90
[2024-11-02 22:30:00,507 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:30:00,512 INFO  L225             Difference]: With dead ends: 97
[2024-11-02 22:30:00,512 INFO  L226             Difference]: Without dead ends: 48
[2024-11-02 22:30:00,515 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-02 22:30:00,517 INFO  L432           NwaCegarLoop]: 71 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, 71 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-02 22:30:00,518 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-02 22:30:00,528 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 48 states.
[2024-11-02 22:30:00,541 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48.
[2024-11-02 22:30:00,542 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 48 states, 33 states have (on average 1.3636363636363635) internal successors, (45), 33 states have internal predecessors, (45), 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)
[2024-11-02 22:30:00,543 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 71 transitions.
[2024-11-02 22:30:00,544 INFO  L78                 Accepts]: Start accepts. Automaton has 48 states and 71 transitions. Word has length 90
[2024-11-02 22:30:00,544 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:30:00,545 INFO  L471      AbstractCegarLoop]: Abstraction has 48 states and 71 transitions.
[2024-11-02 22:30:00,545 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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)
[2024-11-02 22:30:00,545 INFO  L276                IsEmpty]: Start isEmpty. Operand 48 states and 71 transitions.
[2024-11-02 22:30:00,547 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 91
[2024-11-02 22:30:00,547 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:30:00,547 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, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 22:30:00,562 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-02 22:30:00,751 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:30:00,752 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:30:00,752 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:30:00,752 INFO  L85        PathProgramCache]: Analyzing trace with hash 2128279915, now seen corresponding path program 1 times
[2024-11-02 22:30:00,753 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:30:00,753 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2100046969]
[2024-11-02 22:30:00,753 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:30:00,753 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:30:00,753 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:30:00,756 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 22:30:00,757 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-02 22:30:00,849 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:30:00,855 INFO  L255         TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-02 22:30:00,860 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:30:01,097 INFO  L134       CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked.
[2024-11-02 22:30:01,098 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:30:01,197 INFO  L134       CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked.
[2024-11-02 22:30:01,197 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:30:01,197 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2100046969]
[2024-11-02 22:30:01,197 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [2100046969] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 22:30:01,197 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 22:30:01,197 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6
[2024-11-02 22:30:01,198 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292548094]
[2024-11-02 22:30:01,198 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 22:30:01,199 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-02 22:30:01,199 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:30:01,199 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-02 22:30:01,200 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-02 22:30:01,200 INFO  L87              Difference]: Start difference. First operand 48 states and 71 transitions. Second operand  has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26)
[2024-11-02 22:30:01,488 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:30:01,488 INFO  L93              Difference]: Finished difference Result 255 states and 379 transitions.
[2024-11-02 22:30:01,492 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-02 22:30:01,492 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 90
[2024-11-02 22:30:01,493 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:30:01,495 INFO  L225             Difference]: With dead ends: 255
[2024-11-02 22:30:01,495 INFO  L226             Difference]: Without dead ends: 210
[2024-11-02 22:30:01,495 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72
[2024-11-02 22:30:01,496 INFO  L432           NwaCegarLoop]: 90 mSDtfsCounter, 233 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-02 22:30:01,497 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 288 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-02 22:30:01,498 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 210 states.
[2024-11-02 22:30:01,516 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 94.
[2024-11-02 22:30:01,517 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 94 states, 65 states have (on average 1.3692307692307693) internal successors, (89), 65 states have internal predecessors, (89), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26)
[2024-11-02 22:30:01,518 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 141 transitions.
[2024-11-02 22:30:01,518 INFO  L78                 Accepts]: Start accepts. Automaton has 94 states and 141 transitions. Word has length 90
[2024-11-02 22:30:01,519 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:30:01,519 INFO  L471      AbstractCegarLoop]: Abstraction has 94 states and 141 transitions.
[2024-11-02 22:30:01,519 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26)
[2024-11-02 22:30:01,519 INFO  L276                IsEmpty]: Start isEmpty. Operand 94 states and 141 transitions.
[2024-11-02 22:30:01,520 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 92
[2024-11-02 22:30:01,520 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:30:01,520 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, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 22:30:01,535 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-02 22:30:01,721 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:30:01,721 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:30:01,722 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:30:01,722 INFO  L85        PathProgramCache]: Analyzing trace with hash -981760802, now seen corresponding path program 1 times
[2024-11-02 22:30:01,722 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:30:01,722 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [857284912]
[2024-11-02 22:30:01,723 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:30:01,723 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:30:01,723 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:30:01,728 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 22:30:01,730 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-02 22:30:01,810 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:30:01,814 INFO  L255         TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-02 22:30:01,817 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:30:02,264 INFO  L134       CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked.
[2024-11-02 22:30:02,265 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:30:02,412 INFO  L134       CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked.
[2024-11-02 22:30:02,412 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:30:02,412 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [857284912]
[2024-11-02 22:30:02,412 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [857284912] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 22:30:02,412 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 22:30:02,412 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9
[2024-11-02 22:30:02,413 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414049816]
[2024-11-02 22:30:02,413 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 22:30:02,413 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-02 22:30:02,413 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:30:02,414 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-02 22:30:02,416 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72
[2024-11-02 22:30:02,416 INFO  L87              Difference]: Start difference. First operand 94 states and 141 transitions. Second operand  has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26)
[2024-11-02 22:30:03,016 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:30:03,016 INFO  L93              Difference]: Finished difference Result 396 states and 595 transitions.
[2024-11-02 22:30:03,017 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-02 22:30:03,017 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 91
[2024-11-02 22:30:03,017 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:30:03,019 INFO  L225             Difference]: With dead ends: 396
[2024-11-02 22:30:03,019 INFO  L226             Difference]: Without dead ends: 305
[2024-11-02 22:30:03,020 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156
[2024-11-02 22:30:03,021 INFO  L432           NwaCegarLoop]: 107 mSDtfsCounter, 194 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-02 22:30:03,021 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 448 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-02 22:30:03,022 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 305 states.
[2024-11-02 22:30:03,047 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 98.
[2024-11-02 22:30:03,048 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 98 states, 69 states have (on average 1.3478260869565217) internal successors, (93), 69 states have internal predecessors, (93), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26)
[2024-11-02 22:30:03,049 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 145 transitions.
[2024-11-02 22:30:03,049 INFO  L78                 Accepts]: Start accepts. Automaton has 98 states and 145 transitions. Word has length 91
[2024-11-02 22:30:03,050 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:30:03,050 INFO  L471      AbstractCegarLoop]: Abstraction has 98 states and 145 transitions.
[2024-11-02 22:30:03,050 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26)
[2024-11-02 22:30:03,050 INFO  L276                IsEmpty]: Start isEmpty. Operand 98 states and 145 transitions.
[2024-11-02 22:30:03,051 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 93
[2024-11-02 22:30:03,051 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:30:03,051 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, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 22:30:03,067 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-02 22:30:03,252 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:30:03,252 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:30:03,253 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:30:03,253 INFO  L85        PathProgramCache]: Analyzing trace with hash 860370291, now seen corresponding path program 1 times
[2024-11-02 22:30:03,253 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:30:03,253 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1872978876]
[2024-11-02 22:30:03,253 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:30:03,253 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:30:03,254 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:30:03,255 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 22:30:03,256 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-02 22:30:03,369 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:30:03,374 INFO  L255         TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-02 22:30:03,377 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:30:03,497 INFO  L134       CoverageAnalysis]: Checked inductivity of 312 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked.
[2024-11-02 22:30:03,497 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:30:03,625 INFO  L134       CoverageAnalysis]: Checked inductivity of 312 backedges. 33 proven. 3 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked.
[2024-11-02 22:30:03,626 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:30:03,626 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1872978876]
[2024-11-02 22:30:03,626 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1872978876] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 22:30:03,626 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 22:30:03,626 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 11
[2024-11-02 22:30:03,626 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840864314]
[2024-11-02 22:30:03,626 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 22:30:03,627 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-02 22:30:03,627 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:30:03,627 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-02 22:30:03,628 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110
[2024-11-02 22:30:03,628 INFO  L87              Difference]: Start difference. First operand 98 states and 145 transitions. Second operand  has 9 states, 9 states have (on average 4.0) internal successors, (36), 8 states have internal predecessors, (36), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13)
[2024-11-02 22:30:04,100 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:30:04,100 INFO  L93              Difference]: Finished difference Result 214 states and 302 transitions.
[2024-11-02 22:30:04,100 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. 
[2024-11-02 22:30:04,101 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 4.0) internal successors, (36), 8 states have internal predecessors, (36), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 92
[2024-11-02 22:30:04,101 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:30:04,102 INFO  L225             Difference]: With dead ends: 214
[2024-11-02 22:30:04,102 INFO  L226             Difference]: Without dead ends: 119
[2024-11-02 22:30:04,103 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 173 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506
[2024-11-02 22:30:04,104 INFO  L432           NwaCegarLoop]: 77 mSDtfsCounter, 187 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-02 22:30:04,108 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 329 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-02 22:30:04,109 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 119 states.
[2024-11-02 22:30:04,153 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 113.
[2024-11-02 22:30:04,154 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 113 states, 80 states have (on average 1.2625) internal successors, (101), 80 states have internal predecessors, (101), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26)
[2024-11-02 22:30:04,155 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 153 transitions.
[2024-11-02 22:30:04,155 INFO  L78                 Accepts]: Start accepts. Automaton has 113 states and 153 transitions. Word has length 92
[2024-11-02 22:30:04,155 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:30:04,156 INFO  L471      AbstractCegarLoop]: Abstraction has 113 states and 153 transitions.
[2024-11-02 22:30:04,156 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 4.0) internal successors, (36), 8 states have internal predecessors, (36), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13)
[2024-11-02 22:30:04,156 INFO  L276                IsEmpty]: Start isEmpty. Operand 113 states and 153 transitions.
[2024-11-02 22:30:04,157 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 93
[2024-11-02 22:30:04,157 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:30:04,157 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, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 22:30:04,174 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-11-02 22:30:04,357 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:30:04,358 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:30:04,358 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:30:04,358 INFO  L85        PathProgramCache]: Analyzing trace with hash -150746959, now seen corresponding path program 1 times
[2024-11-02 22:30:04,359 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:30:04,359 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1684995430]
[2024-11-02 22:30:04,359 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:30:04,359 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:30:04,359 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:30:04,361 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 22:30:04,363 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-02 22:30:04,441 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:30:04,452 INFO  L255         TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 34 conjuncts are in the unsatisfiable core
[2024-11-02 22:30:04,458 INFO  L278         TraceCheckSpWp]: Computing forward predicates...