/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 bitwuzla -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-37.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 12:19:45,010 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 12:19:45,069 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-03 12:19:45,073 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 12:19:45,075 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 12:19:45,102 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 12:19:45,103 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 12:19:45,103 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 12:19:45,104 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 12:19:45,104 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 12:19:45,105 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 12:19:45,105 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 12:19:45,106 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 12:19:45,109 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 12:19:45,109 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 12:19:45,109 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 12:19:45,109 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 12:19:45,110 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 12:19:45,110 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 12:19:45,110 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 12:19:45,110 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 12:19:45,112 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 12:19:45,112 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 12:19:45,112 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 12:19:45,113 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 12:19:45,113 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 12:19:45,113 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 12:19:45,113 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 12:19:45,113 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 12:19:45,114 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 12:19:45,114 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 12:19:45,114 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 12:19:45,114 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 12:19:45,114 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 12:19:45,115 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 12:19:45,115 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 12:19:45,115 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 12:19:45,115 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 12:19:45,116 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 12:19:45,116 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 12:19:45,116 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 12:19:45,117 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 12:19:45,117 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 12:19:45,117 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 12:19:45,117 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla
[2024-11-03 12:19:45,339 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 12:19:45,367 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 12:19:45,370 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 12:19:45,371 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 12:19:45,372 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 12:19:45,373 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-37.i
[2024-11-03 12:19:46,761 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 12:19:46,931 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 12:19:46,932 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-37.i
[2024-11-03 12:19:46,941 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/353da8309/abf7d9e8811447599ecd53ff74f51801/FLAGa0b6eb6cd
[2024-11-03 12:19:47,331 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/353da8309/abf7d9e8811447599ecd53ff74f51801
[2024-11-03 12:19:47,334 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 12:19:47,336 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 12:19:47,339 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 12:19:47,339 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 12:19:47,344 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 12:19:47,344 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:19:47" (1/1) ...
[2024-11-03 12:19:47,345 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d2b2d5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:19:47, skipping insertion in model container
[2024-11-03 12:19:47,345 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:19:47" (1/1) ...
[2024-11-03 12:19:47,369 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 12:19:47,502 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_floatingpointinfluence_no-floats_file-37.i[916,929]
[2024-11-03 12:19:47,556 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 12:19:47,574 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 12:19:47,584 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_floatingpointinfluence_no-floats_file-37.i[916,929]
[2024-11-03 12:19:47,611 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 12:19:47,634 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 12:19:47,636 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:19:47 WrapperNode
[2024-11-03 12:19:47,636 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 12:19:47,637 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 12:19:47,638 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 12:19:47,638 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 12:19:47,643 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:19:47" (1/1) ...
[2024-11-03 12:19:47,654 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:19:47" (1/1) ...
[2024-11-03 12:19:47,683 INFO  L138                Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 103
[2024-11-03 12:19:47,683 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 12:19:47,684 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 12:19:47,684 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 12:19:47,684 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 12:19:47,693 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:19:47" (1/1) ...
[2024-11-03 12:19:47,694 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:19:47" (1/1) ...
[2024-11-03 12:19:47,697 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:19:47" (1/1) ...
[2024-11-03 12:19:47,715 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].
[2024-11-03 12:19:47,717 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:19:47" (1/1) ...
[2024-11-03 12:19:47,717 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:19:47" (1/1) ...
[2024-11-03 12:19:47,729 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:19:47" (1/1) ...
[2024-11-03 12:19:47,732 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:19:47" (1/1) ...
[2024-11-03 12:19:47,736 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:19:47" (1/1) ...
[2024-11-03 12:19:47,738 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:19:47" (1/1) ...
[2024-11-03 12:19:47,745 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 12:19:47,746 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 12:19:47,746 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 12:19:47,746 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 12:19:47,746 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:19:47" (1/1) ...
[2024-11-03 12:19:47,756 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 12:19:47,772 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 12:19:47,786 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)
[2024-11-03 12:19:47,790 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
[2024-11-03 12:19:47,811 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 12:19:47,812 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 12:19:47,812 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 12:19:47,813 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 12:19:47,813 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 12:19:47,813 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 12:19:47,875 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 12:19:47,877 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 12:19:48,564 INFO  L?                        ?]: Removed 12 outVars from TransFormulas that were not future-live.
[2024-11-03 12:19:48,564 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 12:19:48,578 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 12:19:48,578 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 12:19:48,579 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:19:48 BoogieIcfgContainer
[2024-11-03 12:19:48,579 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 12:19:48,581 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 12:19:48,581 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 12:19:48,585 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 12:19:48,585 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:19:47" (1/3) ...
[2024-11-03 12:19:48,585 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fe4f984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:19:48, skipping insertion in model container
[2024-11-03 12:19:48,586 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:19:47" (2/3) ...
[2024-11-03 12:19:48,586 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fe4f984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:19:48, skipping insertion in model container
[2024-11-03 12:19:48,586 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:19:48" (3/3) ...
[2024-11-03 12:19:48,587 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-37.i
[2024-11-03 12:19:48,604 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 12:19:48,604 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 12:19:48,670 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 12:19:48,676 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;@e683daf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 12:19:48,677 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 12:19:48,683 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 49 states, 30 states have (on average 1.3) internal successors, (39), 31 states have internal predecessors, (39), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2024-11-03 12:19:48,696 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 103
[2024-11-03 12:19:48,696 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:19:48,697 INFO  L215           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 12:19:48,698 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:19:48,703 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:19:48,703 INFO  L85        PathProgramCache]: Analyzing trace with hash -1413997915, now seen corresponding path program 1 times
[2024-11-03 12:19:48,711 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:19:48,711 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [592186683]
[2024-11-03 12:19:48,712 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:19:48,714 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:19:48,714 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:19:48,721 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 12:19:48,733 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process
[2024-11-03 12:19:48,825 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:19:48,829 INFO  L255         TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 12:19:48,839 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:19:48,876 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked.
[2024-11-03 12:19:48,876 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:19:48,961 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked.
[2024-11-03 12:19:48,963 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:19:48,963 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [592186683]
[2024-11-03 12:19:48,963 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [592186683] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 12:19:48,964 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 12:19:48,964 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 12:19:48,965 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501016269]
[2024-11-03 12:19:48,966 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 12:19:48,971 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 12:19:48,971 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:19:48,995 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 12:19:48,996 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 12:19:48,998 INFO  L87              Difference]: Start difference. First operand  has 49 states, 30 states have (on average 1.3) internal successors, (39), 31 states have internal predecessors, (39), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand  has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-03 12:19:49,028 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:19:49,029 INFO  L93              Difference]: Finished difference Result 91 states and 152 transitions.
[2024-11-03 12:19:49,030 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 12:19:49,031 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 102
[2024-11-03 12:19:49,031 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:19:49,038 INFO  L225             Difference]: With dead ends: 91
[2024-11-03 12:19:49,039 INFO  L226             Difference]: Without dead ends: 45
[2024-11-03 12:19:49,043 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 12:19:49,050 INFO  L432           NwaCegarLoop]: 64 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, 64 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
[2024-11-03 12:19:49,051 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 12:19:49,067 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 45 states.
[2024-11-03 12:19:49,097 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45.
[2024-11-03 12:19:49,098 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 45 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2024-11-03 12:19:49,100 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions.
[2024-11-03 12:19:49,102 INFO  L78                 Accepts]: Start accepts. Automaton has 45 states and 64 transitions. Word has length 102
[2024-11-03 12:19:49,103 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:19:49,103 INFO  L471      AbstractCegarLoop]: Abstraction has 45 states and 64 transitions.
[2024-11-03 12:19:49,103 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-03 12:19:49,103 INFO  L276                IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions.
[2024-11-03 12:19:49,107 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 103
[2024-11-03 12:19:49,108 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:19:49,108 INFO  L215           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 12:19:49,111 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0
[2024-11-03 12:19:49,309 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:19:49,310 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:19:49,311 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:19:49,311 INFO  L85        PathProgramCache]: Analyzing trace with hash 1808726693, now seen corresponding path program 1 times
[2024-11-03 12:19:49,311 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:19:49,311 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [218334164]
[2024-11-03 12:19:49,311 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:19:49,312 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:19:49,312 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:19:49,315 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 12:19:49,317 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process
[2024-11-03 12:19:49,490 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:19:49,495 INFO  L255         TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-03 12:19:49,506 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:19:50,164 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 222 proven. 69 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked.
[2024-11-03 12:19:50,164 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:19:51,096 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 15 proven. 72 refuted. 0 times theorem prover too weak. 393 trivial. 0 not checked.
[2024-11-03 12:19:51,097 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:19:51,097 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [218334164]
[2024-11-03 12:19:51,097 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [218334164] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 12:19:51,098 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 12:19:51,098 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16
[2024-11-03 12:19:51,098 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322582387]
[2024-11-03 12:19:51,098 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 12:19:51,100 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2024-11-03 12:19:51,102 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:19:51,104 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2024-11-03 12:19:51,105 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240
[2024-11-03 12:19:51,105 INFO  L87              Difference]: Start difference. First operand 45 states and 64 transitions. Second operand  has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 5 states have call successors, (31), 3 states have call predecessors, (31), 7 states have return successors, (32), 4 states have call predecessors, (32), 5 states have call successors, (32)
[2024-11-03 12:19:51,905 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:19:51,906 INFO  L93              Difference]: Finished difference Result 99 states and 135 transitions.
[2024-11-03 12:19:51,907 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2024-11-03 12:19:51,907 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 5 states have call successors, (31), 3 states have call predecessors, (31), 7 states have return successors, (32), 4 states have call predecessors, (32), 5 states have call successors, (32) Word has length 102
[2024-11-03 12:19:51,908 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:19:51,909 INFO  L225             Difference]: With dead ends: 99
[2024-11-03 12:19:51,909 INFO  L226             Difference]: Without dead ends: 57
[2024-11-03 12:19:51,910 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 187 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=144, Invalid=276, Unknown=0, NotChecked=0, Total=420
[2024-11-03 12:19:51,910 INFO  L432           NwaCegarLoop]: 41 mSDtfsCounter, 56 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-03 12:19:51,911 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 153 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-03 12:19:51,912 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 57 states.
[2024-11-03 12:19:51,920 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 53.
[2024-11-03 12:19:51,921 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 53 states, 33 states have (on average 1.121212121212121) internal successors, (37), 33 states have internal predecessors, (37), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2024-11-03 12:19:51,922 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 69 transitions.
[2024-11-03 12:19:51,922 INFO  L78                 Accepts]: Start accepts. Automaton has 53 states and 69 transitions. Word has length 102
[2024-11-03 12:19:51,922 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:19:51,923 INFO  L471      AbstractCegarLoop]: Abstraction has 53 states and 69 transitions.
[2024-11-03 12:19:51,923 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 5 states have call successors, (31), 3 states have call predecessors, (31), 7 states have return successors, (32), 4 states have call predecessors, (32), 5 states have call successors, (32)
[2024-11-03 12:19:51,923 INFO  L276                IsEmpty]: Start isEmpty. Operand 53 states and 69 transitions.
[2024-11-03 12:19:51,924 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 103
[2024-11-03 12:19:51,924 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:19:51,925 INFO  L215           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 12:19:51,934 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Forceful destruction successful, exit code 0
[2024-11-03 12:19:52,128 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:19:52,129 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:19:52,130 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:19:52,130 INFO  L85        PathProgramCache]: Analyzing trace with hash -1806182233, now seen corresponding path program 1 times
[2024-11-03 12:19:52,130 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:19:52,130 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1394247790]
[2024-11-03 12:19:52,130 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:19:52,131 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:19:52,131 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:19:52,132 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 12:19:52,133 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process
[2024-11-03 12:19:52,223 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:19:52,228 INFO  L255         TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-11-03 12:19:52,237 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:19:53,135 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 242 proven. 114 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked.
[2024-11-03 12:19:53,136 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:20:01,539 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 21 proven. 105 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked.
[2024-11-03 12:20:01,540 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:20:01,543 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1394247790]
[2024-11-03 12:20:01,543 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1394247790] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 12:20:01,544 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 12:20:01,544 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14] total 27
[2024-11-03 12:20:01,544 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656878022]
[2024-11-03 12:20:01,549 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 12:20:01,550 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 27 states
[2024-11-03 12:20:01,550 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:20:01,577 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants.
[2024-11-03 12:20:01,577 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=491, Unknown=0, NotChecked=0, Total=702
[2024-11-03 12:20:01,578 INFO  L87              Difference]: Start difference. First operand 53 states and 69 transitions. Second operand  has 27 states, 26 states have (on average 2.5) internal successors, (65), 25 states have internal predecessors, (65), 8 states have call successors, (31), 5 states have call predecessors, (31), 11 states have return successors, (32), 7 states have call predecessors, (32), 8 states have call successors, (32)
[2024-11-03 12:20:04,278 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:20:04,279 INFO  L93              Difference]: Finished difference Result 119 states and 149 transitions.
[2024-11-03 12:20:04,280 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. 
[2024-11-03 12:20:04,280 INFO  L78                 Accepts]: Start accepts. Automaton has  has 27 states, 26 states have (on average 2.5) internal successors, (65), 25 states have internal predecessors, (65), 8 states have call successors, (31), 5 states have call predecessors, (31), 11 states have return successors, (32), 7 states have call predecessors, (32), 8 states have call successors, (32) Word has length 102
[2024-11-03 12:20:04,281 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:20:04,282 INFO  L225             Difference]: With dead ends: 119
[2024-11-03 12:20:04,282 INFO  L226             Difference]: Without dead ends: 69
[2024-11-03 12:20:04,286 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 176 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 400 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=415, Invalid=917, Unknown=0, NotChecked=0, Total=1332
[2024-11-03 12:20:04,289 INFO  L432           NwaCegarLoop]: 44 mSDtfsCounter, 50 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time
[2024-11-03 12:20:04,290 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 199 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time]
[2024-11-03 12:20:04,291 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 69 states.
[2024-11-03 12:20:04,317 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 61.
[2024-11-03 12:20:04,318 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 61 states, 39 states have (on average 1.0769230769230769) internal successors, (42), 39 states have internal predecessors, (42), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2024-11-03 12:20:04,319 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 74 transitions.
[2024-11-03 12:20:04,319 INFO  L78                 Accepts]: Start accepts. Automaton has 61 states and 74 transitions. Word has length 102
[2024-11-03 12:20:04,320 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:20:04,320 INFO  L471      AbstractCegarLoop]: Abstraction has 61 states and 74 transitions.
[2024-11-03 12:20:04,326 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 27 states, 26 states have (on average 2.5) internal successors, (65), 25 states have internal predecessors, (65), 8 states have call successors, (31), 5 states have call predecessors, (31), 11 states have return successors, (32), 7 states have call predecessors, (32), 8 states have call successors, (32)
[2024-11-03 12:20:04,327 INFO  L276                IsEmpty]: Start isEmpty. Operand 61 states and 74 transitions.
[2024-11-03 12:20:04,328 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 103
[2024-11-03 12:20:04,328 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:20:04,329 INFO  L215           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 12:20:04,336 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Ended with exit code 0
[2024-11-03 12:20:04,529 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:20:04,530 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:20:04,533 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:20:04,533 INFO  L85        PathProgramCache]: Analyzing trace with hash -31174871, now seen corresponding path program 1 times
[2024-11-03 12:20:04,533 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:20:04,533 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1562184475]
[2024-11-03 12:20:04,533 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:20:04,534 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:20:04,534 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:20:04,535 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 12:20:04,536 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process
[2024-11-03 12:20:04,597 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:20:04,600 INFO  L255         TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-11-03 12:20:04,604 INFO  L278         TraceCheckSpWp]: Computing forward predicates...