/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-21.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 12:17:31,933 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 12:17:31,986 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 12:17:31,990 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 12:17:31,990 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 12:17:32,008 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 12:17:32,009 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 12:17:32,009 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 12:17:32,010 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 12:17:32,010 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 12:17:32,010 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 12:17:32,011 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 12:17:32,012 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 12:17:32,013 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 12:17:32,013 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 12:17:32,014 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 12:17:32,014 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 12:17:32,014 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 12:17:32,014 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 12:17:32,015 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 12:17:32,015 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 12:17:32,018 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 12:17:32,018 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 12:17:32,019 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 12:17:32,019 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 12:17:32,019 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 12:17:32,019 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 12:17:32,019 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 12:17:32,019 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 12:17:32,020 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 12:17:32,020 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 12:17:32,020 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 12:17:32,020 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 12:17:32,020 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 12:17:32,021 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 12:17:32,021 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 12:17:32,021 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 12:17:32,021 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 12:17:32,021 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 12:17:32,022 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 12:17:32,022 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 12:17:32,023 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 12:17:32,023 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 12:17:32,023 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 12:17:32,023 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla
[2024-11-03 12:17:32,226 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 12:17:32,252 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 12:17:32,254 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 12:17:32,254 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 12:17:32,255 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 12:17:32,255 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-21.i
[2024-11-03 12:17:33,512 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 12:17:33,713 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 12:17:33,713 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-21.i
[2024-11-03 12:17:33,719 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c75db93ea/36ebdf47eebb463781014910931961c5/FLAGe97ac0dc6
[2024-11-03 12:17:33,730 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c75db93ea/36ebdf47eebb463781014910931961c5
[2024-11-03 12:17:33,732 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 12:17:33,734 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 12:17:33,735 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 12:17:33,735 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 12:17:33,740 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 12:17:33,741 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:17:33" (1/1) ...
[2024-11-03 12:17:33,742 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14a7a660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:17:33, skipping insertion in model container
[2024-11-03 12:17:33,742 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:17:33" (1/1) ...
[2024-11-03 12:17:33,772 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 12:17:33,900 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-21.i[916,929]
[2024-11-03 12:17:33,932 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 12:17:33,943 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 12:17:33,953 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-21.i[916,929]
[2024-11-03 12:17:33,974 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 12:17:33,995 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 12:17:33,995 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:17:33 WrapperNode
[2024-11-03 12:17:33,996 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 12:17:33,997 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 12:17:33,997 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 12:17:33,997 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 12:17:34,002 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:17:33" (1/1) ...
[2024-11-03 12:17:34,009 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:17:33" (1/1) ...
[2024-11-03 12:17:34,026 INFO  L138                Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 90
[2024-11-03 12:17:34,027 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 12:17:34,028 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 12:17:34,028 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 12:17:34,028 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 12:17:34,036 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:17:33" (1/1) ...
[2024-11-03 12:17:34,036 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:17:33" (1/1) ...
[2024-11-03 12:17:34,039 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:17:33" (1/1) ...
[2024-11-03 12:17:34,048 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 12:17:34,048 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:17:33" (1/1) ...
[2024-11-03 12:17:34,049 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:17:33" (1/1) ...
[2024-11-03 12:17:34,054 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:17:33" (1/1) ...
[2024-11-03 12:17:34,056 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:17:33" (1/1) ...
[2024-11-03 12:17:34,057 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:17:33" (1/1) ...
[2024-11-03 12:17:34,058 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:17:33" (1/1) ...
[2024-11-03 12:17:34,062 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 12:17:34,062 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 12:17:34,063 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 12:17:34,063 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 12:17:34,063 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:17:33" (1/1) ...
[2024-11-03 12:17:34,067 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 12:17:34,075 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 12:17:34,086 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 12:17:34,097 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 12:17:34,129 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 12:17:34,129 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 12:17:34,130 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 12:17:34,130 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 12:17:34,130 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 12:17:34,130 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 12:17:34,216 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 12:17:34,219 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 12:17:34,542 INFO  L?                        ?]: Removed 8 outVars from TransFormulas that were not future-live.
[2024-11-03 12:17:34,543 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 12:17:34,554 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 12:17:34,554 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 12:17:34,554 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:17:34 BoogieIcfgContainer
[2024-11-03 12:17:34,554 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 12:17:34,556 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 12:17:34,556 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 12:17:34,559 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 12:17:34,559 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:17:33" (1/3) ...
[2024-11-03 12:17:34,560 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37e3e96f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:17:34, skipping insertion in model container
[2024-11-03 12:17:34,560 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:17:33" (2/3) ...
[2024-11-03 12:17:34,560 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37e3e96f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:17:34, skipping insertion in model container
[2024-11-03 12:17:34,560 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:17:34" (3/3) ...
[2024-11-03 12:17:34,561 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-21.i
[2024-11-03 12:17:34,574 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 12:17:34,574 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 12:17:34,617 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 12:17:34,622 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;@39682ad3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 12:17:34,623 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 12:17:34,626 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 44 states, 29 states have (on average 1.4137931034482758) internal successors, (41), 30 states have internal predecessors, (41), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12)
[2024-11-03 12:17:34,632 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2024-11-03 12:17:34,632 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:17:34,633 INFO  L215           NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:17:34,633 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:17:34,637 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:17:34,637 INFO  L85        PathProgramCache]: Analyzing trace with hash -1187149162, now seen corresponding path program 1 times
[2024-11-03 12:17:34,644 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:17:34,644 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1969830328]
[2024-11-03 12:17:34,644 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:17:34,646 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:17:34,646 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:17:34,648 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 12:17:34,648 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process
[2024-11-03 12:17:34,741 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:17:34,743 INFO  L255         TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 12:17:34,748 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:17:34,780 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked.
[2024-11-03 12:17:34,782 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:17:34,840 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked.
[2024-11-03 12:17:34,841 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:17:34,842 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1969830328]
[2024-11-03 12:17:34,842 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1969830328] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 12:17:34,842 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 12:17:34,846 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 12:17:34,848 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992945799]
[2024-11-03 12:17:34,848 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 12:17:34,853 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 12:17:34,853 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:17:34,873 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 12:17:34,874 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 12:17:34,876 INFO  L87              Difference]: Start difference. First operand  has 44 states, 29 states have (on average 1.4137931034482758) internal successors, (41), 30 states have internal predecessors, (41), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand  has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12)
[2024-11-03 12:17:34,893 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:17:34,893 INFO  L93              Difference]: Finished difference Result 81 states and 136 transitions.
[2024-11-03 12:17:34,894 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 12:17:34,895 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) Word has length 78
[2024-11-03 12:17:34,896 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:17:34,901 INFO  L225             Difference]: With dead ends: 81
[2024-11-03 12:17:34,901 INFO  L226             Difference]: Without dead ends: 40
[2024-11-03 12:17:34,903 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 154 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 12:17:34,906 INFO  L432           NwaCegarLoop]: 58 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, 58 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 12:17:34,906 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 12:17:34,919 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 40 states.
[2024-11-03 12:17:34,935 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40.
[2024-11-03 12:17:34,936 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 40 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12)
[2024-11-03 12:17:34,939 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 58 transitions.
[2024-11-03 12:17:34,941 INFO  L78                 Accepts]: Start accepts. Automaton has 40 states and 58 transitions. Word has length 78
[2024-11-03 12:17:34,941 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:17:34,941 INFO  L471      AbstractCegarLoop]: Abstraction has 40 states and 58 transitions.
[2024-11-03 12:17:34,942 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12)
[2024-11-03 12:17:34,942 INFO  L276                IsEmpty]: Start isEmpty. Operand 40 states and 58 transitions.
[2024-11-03 12:17:34,946 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2024-11-03 12:17:34,946 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:17:34,946 INFO  L215           NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:17:34,951 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0
[2024-11-03 12:17:35,149 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:17:35,150 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:17:35,150 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:17:35,151 INFO  L85        PathProgramCache]: Analyzing trace with hash 1652535958, now seen corresponding path program 1 times
[2024-11-03 12:17:35,151 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:17:35,151 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [13103500]
[2024-11-03 12:17:35,151 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:17:35,151 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:17:35,152 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:17:35,154 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 12:17:35,155 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process
[2024-11-03 12:17:35,197 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:17:35,198 INFO  L255         TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-03 12:17:35,201 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:17:35,297 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 143 proven. 15 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked.
[2024-11-03 12:17:35,297 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:17:35,496 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 18 proven. 15 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked.
[2024-11-03 12:17:35,496 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:17:35,496 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [13103500]
[2024-11-03 12:17:35,496 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [13103500] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 12:17:35,497 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 12:17:35,497 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2024-11-03 12:17:35,497 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425136398]
[2024-11-03 12:17:35,497 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 12:17:35,501 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-03 12:17:35,501 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:17:35,502 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-03 12:17:35,502 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-03 12:17:35,503 INFO  L87              Difference]: Start difference. First operand 40 states and 58 transitions. Second operand  has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18)
[2024-11-03 12:17:35,648 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:17:35,648 INFO  L93              Difference]: Finished difference Result 83 states and 118 transitions.
[2024-11-03 12:17:35,653 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-03 12:17:35,654 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 78
[2024-11-03 12:17:35,654 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:17:35,655 INFO  L225             Difference]: With dead ends: 83
[2024-11-03 12:17:35,655 INFO  L226             Difference]: Without dead ends: 46
[2024-11-03 12:17:35,656 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 148 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90
[2024-11-03 12:17:35,657 INFO  L432           NwaCegarLoop]: 40 mSDtfsCounter, 55 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-03 12:17:35,657 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 95 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-03 12:17:35,660 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 46 states.
[2024-11-03 12:17:35,669 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44.
[2024-11-03 12:17:35,669 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 44 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 29 states have internal predecessors, (36), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12)
[2024-11-03 12:17:35,670 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 60 transitions.
[2024-11-03 12:17:35,671 INFO  L78                 Accepts]: Start accepts. Automaton has 44 states and 60 transitions. Word has length 78
[2024-11-03 12:17:35,671 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:17:35,671 INFO  L471      AbstractCegarLoop]: Abstraction has 44 states and 60 transitions.
[2024-11-03 12:17:35,671 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18)
[2024-11-03 12:17:35,671 INFO  L276                IsEmpty]: Start isEmpty. Operand 44 states and 60 transitions.
[2024-11-03 12:17:35,672 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 80
[2024-11-03 12:17:35,672 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:17:35,672 INFO  L215           NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:17:35,676 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0
[2024-11-03 12:17:35,876 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:17:35,876 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:17:35,877 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:17:35,877 INFO  L85        PathProgramCache]: Analyzing trace with hash 690307238, now seen corresponding path program 1 times
[2024-11-03 12:17:35,877 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:17:35,877 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [710737684]
[2024-11-03 12:17:35,878 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:17:35,878 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:17:35,878 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:17:35,880 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 12:17:35,881 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process
[2024-11-03 12:17:35,923 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:17:35,924 INFO  L255         TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-03 12:17:35,926 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:17:36,029 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked.
[2024-11-03 12:17:36,029 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:17:37,467 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked.
[2024-11-03 12:17:37,468 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:17:37,468 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [710737684]
[2024-11-03 12:17:37,468 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [710737684] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 12:17:37,468 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 12:17:37,468 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6
[2024-11-03 12:17:37,468 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245974402]
[2024-11-03 12:17:37,468 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 12:17:37,473 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-03 12:17:37,474 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:17:37,474 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-03 12:17:37,475 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-03 12:17:37,475 INFO  L87              Difference]: Start difference. First operand 44 states and 60 transitions. Second operand  has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24)
[2024-11-03 12:17:38,098 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:17:38,099 INFO  L93              Difference]: Finished difference Result 137 states and 187 transitions.
[2024-11-03 12:17:38,101 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-03 12:17:38,101 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 79
[2024-11-03 12:17:38,102 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:17:38,103 INFO  L225             Difference]: With dead ends: 137
[2024-11-03 12:17:38,103 INFO  L226             Difference]: Without dead ends: 96
[2024-11-03 12:17:38,103 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-03 12:17:38,104 INFO  L432           NwaCegarLoop]: 50 mSDtfsCounter, 48 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-03 12:17:38,104 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 248 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-03 12:17:38,105 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 96 states.
[2024-11-03 12:17:38,114 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 74.
[2024-11-03 12:17:38,115 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 74 states, 45 states have (on average 1.1555555555555554) internal successors, (52), 45 states have internal predecessors, (52), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24)
[2024-11-03 12:17:38,116 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 100 transitions.
[2024-11-03 12:17:38,116 INFO  L78                 Accepts]: Start accepts. Automaton has 74 states and 100 transitions. Word has length 79
[2024-11-03 12:17:38,116 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:17:38,116 INFO  L471      AbstractCegarLoop]: Abstraction has 74 states and 100 transitions.
[2024-11-03 12:17:38,117 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24)
[2024-11-03 12:17:38,117 INFO  L276                IsEmpty]: Start isEmpty. Operand 74 states and 100 transitions.
[2024-11-03 12:17:38,117 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 81
[2024-11-03 12:17:38,118 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:17:38,118 INFO  L215           NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:17:38,124 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Forceful destruction successful, exit code 0
[2024-11-03 12:17:38,318 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:17:38,319 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:17:38,319 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:17:38,319 INFO  L85        PathProgramCache]: Analyzing trace with hash 1288327348, now seen corresponding path program 1 times
[2024-11-03 12:17:38,320 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:17:38,320 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1361712288]
[2024-11-03 12:17:38,320 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:17:38,320 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:17:38,320 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:17:38,322 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 12:17:38,323 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process
[2024-11-03 12:17:38,354 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:17:38,355 INFO  L255         TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-11-03 12:17:38,359 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:18:04,109 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked.
[2024-11-03 12:18:04,109 INFO  L311         TraceCheckSpWp]: Computing backward predicates...