/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-96.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-02 22:37:57,249 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-02 22:37:57,319 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 22:37:57,325 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-02 22:37:57,326 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-02 22:37:57,351 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-02 22:37:57,351 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-02 22:37:57,352 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-02 22:37:57,354 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-02 22:37:57,356 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-02 22:37:57,356 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-02 22:37:57,356 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-02 22:37:57,357 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-02 22:37:57,357 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-02 22:37:57,357 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-02 22:37:57,358 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-02 22:37:57,358 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-02 22:37:57,360 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-02 22:37:57,360 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-02 22:37:57,361 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-02 22:37:57,361 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-02 22:37:57,361 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-02 22:37:57,362 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-02 22:37:57,362 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-02 22:37:57,362 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-02 22:37:57,362 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-02 22:37:57,363 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-02 22:37:57,363 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-02 22:37:57,363 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-02 22:37:57,363 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-02 22:37:57,364 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-02 22:37:57,364 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-02 22:37:57,364 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-02 22:37:57,364 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-02 22:37:57,365 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 22:37:57,365 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-02 22:37:57,365 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-02 22:37:57,365 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-02 22:37:57,366 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-02 22:37:57,366 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-02 22:37:57,366 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-02 22:37:57,366 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-02 22:37:57,367 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-02 22:37:57,367 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-02 22:37:57,367 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:37:57,606 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-02 22:37:57,630 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-02 22:37:57,635 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-02 22:37:57,636 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-02 22:37:57,636 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-02 22:37:57,638 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-96.i
[2024-11-02 22:37:59,058 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-02 22:37:59,252 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-02 22:37:59,253 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-96.i
[2024-11-02 22:37:59,264 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28a0b32e6/7fc6e8a00a6145c5a86745f52b2c8b71/FLAG26df20113
[2024-11-02 22:37:59,277 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28a0b32e6/7fc6e8a00a6145c5a86745f52b2c8b71
[2024-11-02 22:37:59,280 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-02 22:37:59,281 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-02 22:37:59,282 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-02 22:37:59,282 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-02 22:37:59,287 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-02 22:37:59,288 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:37:59" (1/1) ...
[2024-11-02 22:37:59,289 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a90a0a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:59, skipping insertion in model container
[2024-11-02 22:37:59,289 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:37:59" (1/1) ...
[2024-11-02 22:37:59,315 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-02 22:37:59,490 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-96.i[915,928]
[2024-11-02 22:37:59,542 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 22:37:59,562 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-02 22:37:59,573 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-96.i[915,928]
[2024-11-02 22:37:59,597 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 22:37:59,615 INFO  L204         MainTranslator]: Completed translation
[2024-11-02 22:37:59,615 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:59 WrapperNode
[2024-11-02 22:37:59,616 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-02 22:37:59,617 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-02 22:37:59,617 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-02 22:37:59,617 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-02 22:37:59,624 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:59" (1/1) ...
[2024-11-02 22:37:59,646 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:59" (1/1) ...
[2024-11-02 22:37:59,676 INFO  L138                Inliner]: procedures = 27, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 153
[2024-11-02 22:37:59,676 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-02 22:37:59,677 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-02 22:37:59,677 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-02 22:37:59,677 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-02 22:37:59,687 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:59" (1/1) ...
[2024-11-02 22:37:59,687 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:59" (1/1) ...
[2024-11-02 22:37:59,692 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:59" (1/1) ...
[2024-11-02 22:37:59,705 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 22:37:59,706 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:59" (1/1) ...
[2024-11-02 22:37:59,706 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:59" (1/1) ...
[2024-11-02 22:37:59,715 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:59" (1/1) ...
[2024-11-02 22:37:59,718 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:59" (1/1) ...
[2024-11-02 22:37:59,721 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:59" (1/1) ...
[2024-11-02 22:37:59,727 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:59" (1/1) ...
[2024-11-02 22:37:59,735 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-02 22:37:59,736 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-02 22:37:59,736 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-02 22:37:59,736 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-02 22:37:59,737 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:59" (1/1) ...
[2024-11-02 22:37:59,744 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 22:37:59,757 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:37:59,774 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 22:37:59,778 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 22:37:59,806 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-02 22:37:59,807 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-02 22:37:59,807 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-02 22:37:59,807 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-02 22:37:59,807 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-02 22:37:59,807 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-02 22:37:59,896 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-02 22:37:59,900 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-02 22:38:02,836 INFO  L?                        ?]: Removed 10 outVars from TransFormulas that were not future-live.
[2024-11-02 22:38:02,837 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-02 22:38:02,859 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-02 22:38:02,859 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-02 22:38:02,860 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:38:02 BoogieIcfgContainer
[2024-11-02 22:38:02,860 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-02 22:38:02,862 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-02 22:38:02,863 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-02 22:38:02,868 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-02 22:38:02,869 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 10:37:59" (1/3) ...
[2024-11-02 22:38:02,870 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76abf9c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:38:02, skipping insertion in model container
[2024-11-02 22:38:02,870 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:59" (2/3) ...
[2024-11-02 22:38:02,870 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76abf9c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:38:02, skipping insertion in model container
[2024-11-02 22:38:02,871 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:38:02" (3/3) ...
[2024-11-02 22:38:02,872 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-96.i
[2024-11-02 22:38:02,891 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-02 22:38:02,891 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-02 22:38:03,001 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-02 22:38:03,007 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;@3cf2740e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-02 22:38:03,007 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-02 22:38:03,011 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 73 states, 43 states have (on average 1.3255813953488371) internal successors, (57), 44 states have internal predecessors, (57), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27)
[2024-11-02 22:38:03,023 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 168
[2024-11-02 22:38:03,023 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:38:03,024 INFO  L215           NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:38:03,025 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:38:03,029 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:38:03,029 INFO  L85        PathProgramCache]: Analyzing trace with hash 2110557727, now seen corresponding path program 1 times
[2024-11-02 22:38:03,035 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:38:03,036 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1566295530]
[2024-11-02 22:38:03,036 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:38:03,038 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:38:03,038 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:38:03,041 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 22:38:03,043 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 22:38:03,321 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:38:03,341 INFO  L255         TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-02 22:38:03,355 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:38:03,414 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 1352 trivial. 0 not checked.
[2024-11-02 22:38:03,415 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:38:03,709 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 1352 trivial. 0 not checked.
[2024-11-02 22:38:03,710 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:38:03,711 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1566295530]
[2024-11-02 22:38:03,711 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1566295530] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 22:38:03,711 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 22:38:03,712 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-02 22:38:03,714 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600049483]
[2024-11-02 22:38:03,715 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 22:38:03,719 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-02 22:38:03,719 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:38:03,745 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-02 22:38:03,746 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-02 22:38:03,748 INFO  L87              Difference]: Start difference. First operand  has 73 states, 43 states have (on average 1.3255813953488371) internal successors, (57), 44 states have internal predecessors, (57), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand  has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27)
[2024-11-02 22:38:03,780 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:38:03,780 INFO  L93              Difference]: Finished difference Result 136 states and 237 transitions.
[2024-11-02 22:38:03,781 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-02 22:38:03,782 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) Word has length 167
[2024-11-02 22:38:03,783 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:38:03,789 INFO  L225             Difference]: With dead ends: 136
[2024-11-02 22:38:03,790 INFO  L226             Difference]: Without dead ends: 66
[2024-11-02 22:38:03,793 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 332 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 22:38:03,797 INFO  L432           NwaCegarLoop]: 97 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, 97 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 22:38:03,798 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-02 22:38:03,816 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 66 states.
[2024-11-02 22:38:03,845 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66.
[2024-11-02 22:38:03,846 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 66 states, 37 states have (on average 1.162162162162162) internal successors, (43), 37 states have internal predecessors, (43), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27)
[2024-11-02 22:38:03,848 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 97 transitions.
[2024-11-02 22:38:03,850 INFO  L78                 Accepts]: Start accepts. Automaton has 66 states and 97 transitions. Word has length 167
[2024-11-02 22:38:03,851 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:38:03,851 INFO  L471      AbstractCegarLoop]: Abstraction has 66 states and 97 transitions.
[2024-11-02 22:38:03,851 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27)
[2024-11-02 22:38:03,851 INFO  L276                IsEmpty]: Start isEmpty. Operand 66 states and 97 transitions.
[2024-11-02 22:38:03,855 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 168
[2024-11-02 22:38:03,855 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:38:03,855 INFO  L215           NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:38:03,886 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-02 22:38:04,056 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 22:38:04,057 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:38:04,057 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:38:04,058 INFO  L85        PathProgramCache]: Analyzing trace with hash 296320473, now seen corresponding path program 1 times
[2024-11-02 22:38:04,058 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:38:04,058 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [458805940]
[2024-11-02 22:38:04,058 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:38:04,059 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:38:04,059 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:38:04,060 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 22:38:04,061 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 22:38:04,303 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:38:04,324 INFO  L255         TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-02 22:38:04,332 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:38:05,061 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked.
[2024-11-02 22:38:05,061 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:38:05,624 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked.
[2024-11-02 22:38:05,624 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:38:05,624 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [458805940]
[2024-11-02 22:38:05,625 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [458805940] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 22:38:05,625 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 22:38:05,625 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6
[2024-11-02 22:38:05,625 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987616592]
[2024-11-02 22:38:05,625 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 22:38:05,628 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-02 22:38:05,628 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:38:05,629 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-02 22:38:05,630 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-02 22:38:05,630 INFO  L87              Difference]: Start difference. First operand 66 states and 97 transitions. Second operand  has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54)
[2024-11-02 22:38:07,245 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 22:38:08,408 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 22:38:09,881 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 22:38:09,918 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:38:09,919 INFO  L93              Difference]: Finished difference Result 208 states and 305 transitions.
[2024-11-02 22:38:09,940 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-02 22:38:09,941 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 167
[2024-11-02 22:38:09,942 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:38:09,946 INFO  L225             Difference]: With dead ends: 208
[2024-11-02 22:38:09,946 INFO  L226             Difference]: Without dead ends: 145
[2024-11-02 22:38:09,947 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-02 22:38:09,948 INFO  L432           NwaCegarLoop]: 94 mSDtfsCounter, 116 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time
[2024-11-02 22:38:09,949 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 295 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time]
[2024-11-02 22:38:09,950 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 145 states.
[2024-11-02 22:38:09,995 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 115.
[2024-11-02 22:38:09,996 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 115 states, 58 states have (on average 1.103448275862069) internal successors, (64), 58 states have internal predecessors, (64), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54)
[2024-11-02 22:38:09,998 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 172 transitions.
[2024-11-02 22:38:09,999 INFO  L78                 Accepts]: Start accepts. Automaton has 115 states and 172 transitions. Word has length 167
[2024-11-02 22:38:10,000 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:38:10,000 INFO  L471      AbstractCegarLoop]: Abstraction has 115 states and 172 transitions.
[2024-11-02 22:38:10,000 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54)
[2024-11-02 22:38:10,000 INFO  L276                IsEmpty]: Start isEmpty. Operand 115 states and 172 transitions.
[2024-11-02 22:38:10,003 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 168
[2024-11-02 22:38:10,003 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:38:10,003 INFO  L215           NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:38:10,031 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 22:38:10,204 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 22:38:10,204 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:38:10,205 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:38:10,205 INFO  L85        PathProgramCache]: Analyzing trace with hash 554485911, now seen corresponding path program 1 times
[2024-11-02 22:38:10,205 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:38:10,206 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2055125478]
[2024-11-02 22:38:10,206 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:38:10,206 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:38:10,206 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:38:10,208 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 22:38:10,210 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 22:38:10,384 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:38:10,404 INFO  L255         TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-11-02 22:38:10,409 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:38:11,720 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 928 proven. 108 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked.
[2024-11-02 22:38:11,721 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:38:13,032 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 30 proven. 48 refuted. 0 times theorem prover too weak. 1326 trivial. 0 not checked.
[2024-11-02 22:38:13,033 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:38:13,033 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2055125478]
[2024-11-02 22:38:13,033 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [2055125478] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-02 22:38:13,033 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-02 22:38:13,033 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7] total 17
[2024-11-02 22:38:13,034 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582162608]
[2024-11-02 22:38:13,034 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-02 22:38:13,035 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2024-11-02 22:38:13,035 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:38:13,036 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2024-11-02 22:38:13,036 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272
[2024-11-02 22:38:13,037 INFO  L87              Difference]: Start difference. First operand 115 states and 172 transitions. Second operand  has 17 states, 17 states have (on average 4.176470588235294) internal successors, (71), 16 states have internal predecessors, (71), 6 states have call successors, (43), 4 states have call predecessors, (43), 7 states have return successors, (44), 6 states have call predecessors, (44), 6 states have call successors, (44)
[2024-11-02 22:38:16,432 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 22:38:18,176 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:38:18,176 INFO  L93              Difference]: Finished difference Result 289 states and 398 transitions.
[2024-11-02 22:38:18,178 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. 
[2024-11-02 22:38:18,178 INFO  L78                 Accepts]: Start accepts. Automaton has  has 17 states, 17 states have (on average 4.176470588235294) internal successors, (71), 16 states have internal predecessors, (71), 6 states have call successors, (43), 4 states have call predecessors, (43), 7 states have return successors, (44), 6 states have call predecessors, (44), 6 states have call successors, (44) Word has length 167
[2024-11-02 22:38:18,179 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:38:18,185 INFO  L225             Difference]: With dead ends: 289
[2024-11-02 22:38:18,186 INFO  L226             Difference]: Without dead ends: 226
[2024-11-02 22:38:18,187 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 319 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=371, Invalid=889, Unknown=0, NotChecked=0, Total=1260
[2024-11-02 22:38:18,188 INFO  L432           NwaCegarLoop]: 114 mSDtfsCounter, 178 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time
[2024-11-02 22:38:18,192 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 458 Invalid, 860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time]
[2024-11-02 22:38:18,194 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 226 states.
[2024-11-02 22:38:18,240 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 207.
[2024-11-02 22:38:18,241 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 207 states, 112 states have (on average 1.0625) internal successors, (119), 113 states have internal predecessors, (119), 81 states have call successors, (81), 13 states have call predecessors, (81), 13 states have return successors, (81), 80 states have call predecessors, (81), 81 states have call successors, (81)
[2024-11-02 22:38:18,245 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 281 transitions.
[2024-11-02 22:38:18,246 INFO  L78                 Accepts]: Start accepts. Automaton has 207 states and 281 transitions. Word has length 167
[2024-11-02 22:38:18,247 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:38:18,247 INFO  L471      AbstractCegarLoop]: Abstraction has 207 states and 281 transitions.
[2024-11-02 22:38:18,247 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 17 states, 17 states have (on average 4.176470588235294) internal successors, (71), 16 states have internal predecessors, (71), 6 states have call successors, (43), 4 states have call predecessors, (43), 7 states have return successors, (44), 6 states have call predecessors, (44), 6 states have call successors, (44)
[2024-11-02 22:38:18,247 INFO  L276                IsEmpty]: Start isEmpty. Operand 207 states and 281 transitions.
[2024-11-02 22:38:18,250 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 168
[2024-11-02 22:38:18,251 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:38:18,251 INFO  L215           NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:38:18,284 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 22:38:18,451 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 22:38:18,453 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:38:18,453 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:38:18,453 INFO  L85        PathProgramCache]: Analyzing trace with hash 556332953, now seen corresponding path program 1 times
[2024-11-02 22:38:18,454 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:38:18,454 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1806021862]
[2024-11-02 22:38:18,454 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:38:18,454 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:38:18,454 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:38:18,456 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 22:38:18,458 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 22:38:19,316 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:38:19,335 INFO  L255         TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 29 conjuncts are in the unsatisfiable core
[2024-11-02 22:38:19,344 INFO  L278         TraceCheckSpWp]: Computing forward predicates...