/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_operatoramount_amount250_file-13.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 12:45:55,035 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 12:45:55,110 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 12:45:55,114 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 12:45:55,115 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 12:45:55,145 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 12:45:55,146 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 12:45:55,146 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 12:45:55,148 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 12:45:55,151 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 12:45:55,152 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 12:45:55,152 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 12:45:55,153 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 12:45:55,153 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 12:45:55,153 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 12:45:55,153 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 12:45:55,154 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 12:45:55,154 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 12:45:55,155 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 12:45:55,156 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 12:45:55,156 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 12:45:55,156 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 12:45:55,156 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 12:45:55,157 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 12:45:55,157 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 12:45:55,157 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 12:45:55,157 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 12:45:55,157 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 12:45:55,158 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 12:45:55,158 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 12:45:55,158 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 12:45:55,158 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 12:45:55,159 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 12:45:55,159 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 12:45:55,160 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 12:45:55,160 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 12:45:55,160 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 12:45:55,160 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 12:45:55,160 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 12:45:55,161 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 12:45:55,161 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 12:45:55,161 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 12:45:55,161 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 12:45:55,161 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 12:45:55,162 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla
[2024-11-03 12:45:55,394 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 12:45:55,418 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 12:45:55,420 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 12:45:55,421 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 12:45:55,421 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 12:45:55,422 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-13.i
[2024-11-03 12:45:56,764 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 12:45:57,021 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 12:45:57,022 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-13.i
[2024-11-03 12:45:57,039 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de1c82026/9a632ec3d76f4074b72ccfda47f45464/FLAG40dfc3964
[2024-11-03 12:45:57,055 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de1c82026/9a632ec3d76f4074b72ccfda47f45464
[2024-11-03 12:45:57,058 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 12:45:57,059 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 12:45:57,062 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 12:45:57,062 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 12:45:57,068 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 12:45:57,069 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:45:57" (1/1) ...
[2024-11-03 12:45:57,070 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44273ee6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:57, skipping insertion in model container
[2024-11-03 12:45:57,070 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:45:57" (1/1) ...
[2024-11-03 12:45:57,118 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 12:45:57,277 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-13.i[916,929]
[2024-11-03 12:45:57,414 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 12:45:57,433 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 12:45:57,445 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-13.i[916,929]
[2024-11-03 12:45:57,545 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 12:45:57,572 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 12:45:57,574 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:57 WrapperNode
[2024-11-03 12:45:57,575 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 12:45:57,576 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 12:45:57,576 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 12:45:57,576 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 12:45:57,582 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:57" (1/1) ...
[2024-11-03 12:45:57,600 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:57" (1/1) ...
[2024-11-03 12:45:57,638 INFO  L138                Inliner]: procedures = 27, calls = 65, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 361
[2024-11-03 12:45:57,639 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 12:45:57,640 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 12:45:57,640 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 12:45:57,640 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 12:45:57,653 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:57" (1/1) ...
[2024-11-03 12:45:57,654 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:57" (1/1) ...
[2024-11-03 12:45:57,671 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:57" (1/1) ...
[2024-11-03 12:45:57,703 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 12:45:57,703 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:57" (1/1) ...
[2024-11-03 12:45:57,704 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:57" (1/1) ...
[2024-11-03 12:45:57,737 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:57" (1/1) ...
[2024-11-03 12:45:57,745 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:57" (1/1) ...
[2024-11-03 12:45:57,752 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:57" (1/1) ...
[2024-11-03 12:45:57,756 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:57" (1/1) ...
[2024-11-03 12:45:57,762 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 12:45:57,763 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 12:45:57,764 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 12:45:57,764 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 12:45:57,764 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:57" (1/1) ...
[2024-11-03 12:45:57,773 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 12:45:57,786 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 12:45:57,803 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 12:45:57,810 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 12:45:57,836 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 12:45:57,836 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 12:45:57,836 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 12:45:57,836 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 12:45:57,837 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 12:45:57,837 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 12:45:57,952 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 12:45:57,954 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 12:46:25,436 INFO  L?                        ?]: Removed 52 outVars from TransFormulas that were not future-live.
[2024-11-03 12:46:25,436 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 12:46:25,454 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 12:46:25,456 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 12:46:25,456 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:46:25 BoogieIcfgContainer
[2024-11-03 12:46:25,456 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 12:46:25,458 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 12:46:25,459 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 12:46:25,461 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 12:46:25,462 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:45:57" (1/3) ...
[2024-11-03 12:46:25,462 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@380332c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:46:25, skipping insertion in model container
[2024-11-03 12:46:25,463 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:57" (2/3) ...
[2024-11-03 12:46:25,463 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@380332c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:46:25, skipping insertion in model container
[2024-11-03 12:46:25,463 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:46:25" (3/3) ...
[2024-11-03 12:46:25,465 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-13.i
[2024-11-03 12:46:25,480 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 12:46:25,480 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 12:46:25,554 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 12:46:25,559 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;@1add1593, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 12:46:25,560 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 12:46:25,565 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 158 states, 103 states have (on average 1.4757281553398058) internal successors, (152), 104 states have internal predecessors, (152), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52)
[2024-11-03 12:46:25,581 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 339
[2024-11-03 12:46:25,581 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:46:25,582 INFO  L215           NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:46:25,583 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:46:25,588 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:46:25,588 INFO  L85        PathProgramCache]: Analyzing trace with hash 581401097, now seen corresponding path program 1 times
[2024-11-03 12:46:25,595 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:46:25,595 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [596342106]
[2024-11-03 12:46:25,596 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:46:25,597 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:46:25,597 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:46:25,600 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 12:46:25,601 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process
[2024-11-03 12:46:25,841 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:46:25,844 INFO  L255         TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 12:46:25,861 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:46:25,938 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 5202 trivial. 0 not checked.
[2024-11-03 12:46:25,938 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:46:30,530 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 5202 trivial. 0 not checked.
[2024-11-03 12:46:30,531 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:46:30,531 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [596342106]
[2024-11-03 12:46:30,532 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [596342106] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 12:46:30,532 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 12:46:30,532 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 12:46:30,534 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314399352]
[2024-11-03 12:46:30,534 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 12:46:30,539 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 12:46:30,539 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:46:30,562 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 12:46:30,563 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 12:46:30,565 INFO  L87              Difference]: Start difference. First operand  has 158 states, 103 states have (on average 1.4757281553398058) internal successors, (152), 104 states have internal predecessors, (152), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Second operand  has 2 states, 2 states have (on average 41.5) internal successors, (83), 2 states have internal predecessors, (83), 1 states have call successors, (52), 1 states have call predecessors, (52), 2 states have return successors, (52), 2 states have call predecessors, (52), 1 states have call successors, (52)
[2024-11-03 12:46:30,613 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:46:30,614 INFO  L93              Difference]: Finished difference Result 309 states and 558 transitions.
[2024-11-03 12:46:30,615 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 12:46:30,616 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 41.5) internal successors, (83), 2 states have internal predecessors, (83), 1 states have call successors, (52), 1 states have call predecessors, (52), 2 states have return successors, (52), 2 states have call predecessors, (52), 1 states have call successors, (52) Word has length 338
[2024-11-03 12:46:30,617 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:46:30,625 INFO  L225             Difference]: With dead ends: 309
[2024-11-03 12:46:30,625 INFO  L226             Difference]: Without dead ends: 154
[2024-11-03 12:46:30,630 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 674 GetRequests, 674 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 12:46:30,633 INFO  L432           NwaCegarLoop]: 248 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, 248 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 12:46:30,634 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 12:46:30,649 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 154 states.
[2024-11-03 12:46:30,694 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154.
[2024-11-03 12:46:30,695 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 154 states, 100 states have (on average 1.44) internal successors, (144), 100 states have internal predecessors, (144), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52)
[2024-11-03 12:46:30,698 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 248 transitions.
[2024-11-03 12:46:30,701 INFO  L78                 Accepts]: Start accepts. Automaton has 154 states and 248 transitions. Word has length 338
[2024-11-03 12:46:30,701 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:46:30,702 INFO  L471      AbstractCegarLoop]: Abstraction has 154 states and 248 transitions.
[2024-11-03 12:46:30,702 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 41.5) internal successors, (83), 2 states have internal predecessors, (83), 1 states have call successors, (52), 1 states have call predecessors, (52), 2 states have return successors, (52), 2 states have call predecessors, (52), 1 states have call successors, (52)
[2024-11-03 12:46:30,702 INFO  L276                IsEmpty]: Start isEmpty. Operand 154 states and 248 transitions.
[2024-11-03 12:46:30,714 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 339
[2024-11-03 12:46:30,714 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:46:30,715 INFO  L215           NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:46:30,720 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Forceful destruction successful, exit code 0
[2024-11-03 12:46:30,915 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:46:30,916 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:46:30,917 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:46:30,917 INFO  L85        PathProgramCache]: Analyzing trace with hash 1666545921, now seen corresponding path program 1 times
[2024-11-03 12:46:30,918 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:46:30,918 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [976194730]
[2024-11-03 12:46:30,918 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:46:30,918 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:46:30,919 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:46:30,921 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 12:46:30,922 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process
[2024-11-03 12:46:31,121 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:46:31,124 INFO  L255         TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 12:46:31,137 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:46:31,567 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked.
[2024-11-03 12:46:31,567 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:46:36,443 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked.
[2024-11-03 12:46:36,444 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:46:36,444 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [976194730]
[2024-11-03 12:46:36,444 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [976194730] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 12:46:36,444 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 12:46:36,444 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-03 12:46:36,445 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675802937]
[2024-11-03 12:46:36,445 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 12:46:36,447 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 12:46:36,447 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:46:36,448 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 12:46:36,448 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 12:46:36,448 INFO  L87              Difference]: Start difference. First operand 154 states and 248 transitions. Second operand  has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52)
[2024-11-03 12:46:41,749 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.67s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:46:45,762 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:46:45,782 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:46:45,782 INFO  L93              Difference]: Finished difference Result 454 states and 734 transitions.
[2024-11-03 12:46:46,105 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 12:46:46,106 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) Word has length 338
[2024-11-03 12:46:46,107 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:46:46,111 INFO  L225             Difference]: With dead ends: 454
[2024-11-03 12:46:46,111 INFO  L226             Difference]: Without dead ends: 303
[2024-11-03 12:46:46,112 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 674 GetRequests, 673 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 12:46:46,113 INFO  L432           NwaCegarLoop]: 386 mSDtfsCounter, 236 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time
[2024-11-03 12:46:46,114 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 621 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 2 Unknown, 0 Unchecked, 9.3s Time]
[2024-11-03 12:46:46,115 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 303 states.
[2024-11-03 12:46:46,151 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 301.
[2024-11-03 12:46:46,153 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 301 states, 194 states have (on average 1.4329896907216495) internal successors, (278), 194 states have internal predecessors, (278), 104 states have call successors, (104), 2 states have call predecessors, (104), 2 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104)
[2024-11-03 12:46:46,156 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 486 transitions.
[2024-11-03 12:46:46,157 INFO  L78                 Accepts]: Start accepts. Automaton has 301 states and 486 transitions. Word has length 338
[2024-11-03 12:46:46,158 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:46:46,158 INFO  L471      AbstractCegarLoop]: Abstraction has 301 states and 486 transitions.
[2024-11-03 12:46:46,158 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52)
[2024-11-03 12:46:46,159 INFO  L276                IsEmpty]: Start isEmpty. Operand 301 states and 486 transitions.
[2024-11-03 12:46:46,163 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 339
[2024-11-03 12:46:46,163 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:46:46,164 INFO  L215           NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:46:46,168 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0
[2024-11-03 12:46:46,366 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:46:46,367 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:46:46,368 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:46:46,368 INFO  L85        PathProgramCache]: Analyzing trace with hash 1272179135, now seen corresponding path program 1 times
[2024-11-03 12:46:46,368 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:46:46,368 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [920244204]
[2024-11-03 12:46:46,368 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:46:46,369 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:46:46,369 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:46:46,374 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 12:46:46,376 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process
[2024-11-03 12:46:46,560 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:46:46,563 INFO  L255         TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-03 12:46:46,569 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:46:57,411 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 2521 proven. 96 refuted. 0 times theorem prover too weak. 2687 trivial. 0 not checked.
[2024-11-03 12:46:57,412 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:47:08,311 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 57 proven. 96 refuted. 0 times theorem prover too weak. 5151 trivial. 0 not checked.
[2024-11-03 12:47:08,312 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:47:08,312 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [920244204]
[2024-11-03 12:47:08,312 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [920244204] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 12:47:08,312 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 12:47:08,313 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2024-11-03 12:47:08,313 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769439369]
[2024-11-03 12:47:08,313 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 12:47:08,314 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-03 12:47:08,314 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:47:08,315 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-03 12:47:08,315 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-03 12:47:08,316 INFO  L87              Difference]: Start difference. First operand 301 states and 486 transitions. Second operand  has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 2 states have call successors, (84), 2 states have call predecessors, (84), 4 states have return successors, (85), 2 states have call predecessors, (85), 2 states have call successors, (85)
[2024-11-03 12:47:21,985 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.61s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:47:25,995 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:47:30,003 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:47:30,015 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:47:30,015 INFO  L93              Difference]: Finished difference Result 615 states and 983 transitions.
[2024-11-03 12:47:30,294 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-03 12:47:30,294 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 2 states have call successors, (84), 2 states have call predecessors, (84), 4 states have return successors, (85), 2 states have call predecessors, (85), 2 states have call successors, (85) Word has length 338
[2024-11-03 12:47:30,297 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:47:30,300 INFO  L225             Difference]: With dead ends: 615
[2024-11-03 12:47:30,302 INFO  L226             Difference]: Without dead ends: 317
[2024-11-03 12:47:30,304 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 678 GetRequests, 668 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110
[2024-11-03 12:47:30,306 INFO  L432           NwaCegarLoop]: 189 mSDtfsCounter, 124 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 11 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.8s IncrementalHoareTripleChecker+Time
[2024-11-03 12:47:30,310 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 461 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 278 Invalid, 3 Unknown, 0 Unchecked, 20.8s Time]
[2024-11-03 12:47:30,311 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 317 states.
[2024-11-03 12:47:30,360 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 309.
[2024-11-03 12:47:30,364 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 309 states, 200 states have (on average 1.41) internal successors, (282), 200 states have internal predecessors, (282), 104 states have call successors, (104), 4 states have call predecessors, (104), 4 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104)
[2024-11-03 12:47:30,366 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 490 transitions.
[2024-11-03 12:47:30,367 INFO  L78                 Accepts]: Start accepts. Automaton has 309 states and 490 transitions. Word has length 338
[2024-11-03 12:47:30,368 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:47:30,369 INFO  L471      AbstractCegarLoop]: Abstraction has 309 states and 490 transitions.
[2024-11-03 12:47:30,369 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 2 states have call successors, (84), 2 states have call predecessors, (84), 4 states have return successors, (85), 2 states have call predecessors, (85), 2 states have call successors, (85)
[2024-11-03 12:47:30,370 INFO  L276                IsEmpty]: Start isEmpty. Operand 309 states and 490 transitions.
[2024-11-03 12:47:30,372 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 340
[2024-11-03 12:47:30,372 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:47:30,374 INFO  L215           NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:47:30,383 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Ended with exit code 0
[2024-11-03 12:47:30,578 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:47:30,579 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:47:30,579 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:47:30,580 INFO  L85        PathProgramCache]: Analyzing trace with hash 1569862280, now seen corresponding path program 1 times
[2024-11-03 12:47:30,580 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:47:30,580 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2016816127]
[2024-11-03 12:47:30,580 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:47:30,580 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:47:30,580 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:47:30,581 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 12:47:30,582 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process
[2024-11-03 12:47:30,781 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:47:30,787 INFO  L255         TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-03 12:47:30,793 INFO  L278         TraceCheckSpWp]: Computing forward predicates...