/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_amount50_file-17.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 13:24:41,677 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 13:24:41,755 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 13:24:41,759 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 13:24:41,759 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 13:24:41,782 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 13:24:41,783 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 13:24:41,783 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 13:24:41,784 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 13:24:41,784 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 13:24:41,784 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 13:24:41,785 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 13:24:41,785 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 13:24:41,789 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 13:24:41,789 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 13:24:41,789 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 13:24:41,789 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 13:24:41,790 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 13:24:41,790 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 13:24:41,790 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 13:24:41,790 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 13:24:41,792 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 13:24:41,793 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 13:24:41,793 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 13:24:41,793 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 13:24:41,793 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 13:24:41,793 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 13:24:41,794 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 13:24:41,794 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 13:24:41,794 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 13:24:41,794 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 13:24:41,794 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 13:24:41,795 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 13:24:41,795 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 13:24:41,795 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 13:24:41,795 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 13:24:41,795 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 13:24:41,796 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 13:24:41,796 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 13:24:41,797 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 13:24:41,797 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 13:24:41,797 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 13:24:41,797 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 13:24:41,797 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 13:24:41,797 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla
[2024-11-03 13:24:42,021 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 13:24:42,046 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 13:24:42,048 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 13:24:42,049 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 13:24:42,049 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 13:24:42,051 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-17.i
[2024-11-03 13:24:43,403 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 13:24:43,658 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 13:24:43,659 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-17.i
[2024-11-03 13:24:43,670 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e445de81f/f2868300efb6415b87ccebba4c55ee6f/FLAG89f7128f6
[2024-11-03 13:24:43,984 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e445de81f/f2868300efb6415b87ccebba4c55ee6f
[2024-11-03 13:24:43,986 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 13:24:43,988 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 13:24:43,989 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 13:24:43,989 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 13:24:43,993 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 13:24:43,994 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:24:43" (1/1) ...
[2024-11-03 13:24:43,995 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f7f36d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:24:43, skipping insertion in model container
[2024-11-03 13:24:43,995 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:24:43" (1/1) ...
[2024-11-03 13:24:44,018 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 13:24:44,186 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-17.i[915,928]
[2024-11-03 13:24:44,230 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 13:24:44,242 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 13:24:44,254 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-17.i[915,928]
[2024-11-03 13:24:44,290 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 13:24:44,310 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 13:24:44,310 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:24:44 WrapperNode
[2024-11-03 13:24:44,310 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 13:24:44,311 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 13:24:44,311 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 13:24:44,311 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 13:24:44,317 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:24:44" (1/1) ...
[2024-11-03 13:24:44,326 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:24:44" (1/1) ...
[2024-11-03 13:24:44,357 INFO  L138                Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 129
[2024-11-03 13:24:44,357 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 13:24:44,363 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 13:24:44,363 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 13:24:44,363 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 13:24:44,374 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:24:44" (1/1) ...
[2024-11-03 13:24:44,374 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:24:44" (1/1) ...
[2024-11-03 13:24:44,380 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:24:44" (1/1) ...
[2024-11-03 13:24:44,392 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 13:24:44,392 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:24:44" (1/1) ...
[2024-11-03 13:24:44,392 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:24:44" (1/1) ...
[2024-11-03 13:24:44,401 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:24:44" (1/1) ...
[2024-11-03 13:24:44,404 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:24:44" (1/1) ...
[2024-11-03 13:24:44,406 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:24:44" (1/1) ...
[2024-11-03 13:24:44,407 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:24:44" (1/1) ...
[2024-11-03 13:24:44,410 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 13:24:44,411 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 13:24:44,411 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 13:24:44,411 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 13:24:44,416 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:24:44" (1/1) ...
[2024-11-03 13:24:44,422 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 13:24:44,435 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 13:24:44,446 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 13:24:44,448 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 13:24:44,466 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 13:24:44,467 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 13:24:44,467 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 13:24:44,467 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 13:24:44,467 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 13:24:44,467 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 13:24:44,530 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 13:24:44,532 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 13:24:45,057 INFO  L?                        ?]: Removed 16 outVars from TransFormulas that were not future-live.
[2024-11-03 13:24:45,057 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 13:24:45,070 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 13:24:45,070 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 13:24:45,071 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:24:45 BoogieIcfgContainer
[2024-11-03 13:24:45,071 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 13:24:45,073 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 13:24:45,073 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 13:24:45,076 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 13:24:45,077 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:24:43" (1/3) ...
[2024-11-03 13:24:45,078 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30f08242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:24:45, skipping insertion in model container
[2024-11-03 13:24:45,078 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:24:44" (2/3) ...
[2024-11-03 13:24:45,078 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30f08242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:24:45, skipping insertion in model container
[2024-11-03 13:24:45,079 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:24:45" (3/3) ...
[2024-11-03 13:24:45,080 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-17.i
[2024-11-03 13:24:45,095 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 13:24:45,095 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 13:24:45,154 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 13:24:45,158 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;@673ff1da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 13:24:45,159 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 13:24:45,162 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 61 states, 40 states have (on average 1.375) internal successors, (55), 41 states have internal predecessors, (55), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-03 13:24:45,170 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 120
[2024-11-03 13:24:45,170 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:24:45,171 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:24:45,171 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:24:45,175 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:24:45,175 INFO  L85        PathProgramCache]: Analyzing trace with hash 558496771, now seen corresponding path program 1 times
[2024-11-03 13:24:45,182 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:24:45,183 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [443337701]
[2024-11-03 13:24:45,183 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:24:45,184 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:24:45,185 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:24:45,186 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 13:24:45,187 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process
[2024-11-03 13:24:45,305 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:24:45,307 INFO  L255         TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 13:24:45,320 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 13:24:45,364 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked.
[2024-11-03 13:24:45,365 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 13:24:45,565 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked.
[2024-11-03 13:24:45,566 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 13:24:45,566 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [443337701]
[2024-11-03 13:24:45,568 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [443337701] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 13:24:45,569 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 13:24:45,569 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 13:24:45,571 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962346401]
[2024-11-03 13:24:45,571 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 13:24:45,576 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 13:24:45,577 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 13:24:45,594 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 13:24:45,594 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 13:24:45,596 INFO  L87              Difference]: Start difference. First operand  has 61 states, 40 states have (on average 1.375) internal successors, (55), 41 states have internal predecessors, (55), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand  has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 1 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18)
[2024-11-03 13:24:45,619 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 13:24:45,619 INFO  L93              Difference]: Finished difference Result 115 states and 194 transitions.
[2024-11-03 13:24:45,620 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 13:24:45,621 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 1 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) Word has length 119
[2024-11-03 13:24:45,621 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 13:24:45,627 INFO  L225             Difference]: With dead ends: 115
[2024-11-03 13:24:45,627 INFO  L226             Difference]: Without dead ends: 57
[2024-11-03 13:24:45,630 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 236 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 13:24:45,632 INFO  L432           NwaCegarLoop]: 84 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, 84 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 13:24:45,633 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 13:24:45,645 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 57 states.
[2024-11-03 13:24:45,666 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57.
[2024-11-03 13:24:45,668 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 57 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 37 states have internal predecessors, (48), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-03 13:24:45,670 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 84 transitions.
[2024-11-03 13:24:45,673 INFO  L78                 Accepts]: Start accepts. Automaton has 57 states and 84 transitions. Word has length 119
[2024-11-03 13:24:45,673 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 13:24:45,674 INFO  L471      AbstractCegarLoop]: Abstraction has 57 states and 84 transitions.
[2024-11-03 13:24:45,674 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 1 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18)
[2024-11-03 13:24:45,674 INFO  L276                IsEmpty]: Start isEmpty. Operand 57 states and 84 transitions.
[2024-11-03 13:24:45,677 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 120
[2024-11-03 13:24:45,677 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:24:45,677 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:24:45,679 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0
[2024-11-03 13:24:45,878 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:24:45,878 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:24:45,879 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:24:45,879 INFO  L85        PathProgramCache]: Analyzing trace with hash 640030975, now seen corresponding path program 1 times
[2024-11-03 13:24:45,880 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:24:45,880 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1741480168]
[2024-11-03 13:24:45,880 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:24:45,880 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:24:45,880 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:24:45,882 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 13:24:45,883 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process
[2024-11-03 13:24:45,996 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:24:45,998 INFO  L255         TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-03 13:24:46,009 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 13:24:46,364 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked.
[2024-11-03 13:24:46,365 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 13:24:46,577 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked.
[2024-11-03 13:24:46,578 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 13:24:46,578 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1741480168]
[2024-11-03 13:24:46,578 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1741480168] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 13:24:46,578 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 13:24:46,578 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8
[2024-11-03 13:24:46,579 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52742601]
[2024-11-03 13:24:46,579 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 13:24:46,581 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-03 13:24:46,581 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 13:24:46,582 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-03 13:24:46,582 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-11-03 13:24:46,582 INFO  L87              Difference]: Start difference. First operand 57 states and 84 transitions. Second operand  has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36)
[2024-11-03 13:24:47,403 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 13:24:47,403 INFO  L93              Difference]: Finished difference Result 185 states and 274 transitions.
[2024-11-03 13:24:47,411 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-03 13:24:47,412 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 119
[2024-11-03 13:24:47,413 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 13:24:47,415 INFO  L225             Difference]: With dead ends: 185
[2024-11-03 13:24:47,415 INFO  L226             Difference]: Without dead ends: 131
[2024-11-03 13:24:47,416 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90
[2024-11-03 13:24:47,417 INFO  L432           NwaCegarLoop]: 77 mSDtfsCounter, 121 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-03 13:24:47,418 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 324 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-03 13:24:47,419 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 131 states.
[2024-11-03 13:24:47,440 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 92.
[2024-11-03 13:24:47,440 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 92 states, 53 states have (on average 1.1886792452830188) internal successors, (63), 53 states have internal predecessors, (63), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36)
[2024-11-03 13:24:47,442 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 135 transitions.
[2024-11-03 13:24:47,443 INFO  L78                 Accepts]: Start accepts. Automaton has 92 states and 135 transitions. Word has length 119
[2024-11-03 13:24:47,443 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 13:24:47,444 INFO  L471      AbstractCegarLoop]: Abstraction has 92 states and 135 transitions.
[2024-11-03 13:24:47,444 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36)
[2024-11-03 13:24:47,444 INFO  L276                IsEmpty]: Start isEmpty. Operand 92 states and 135 transitions.
[2024-11-03 13:24:47,446 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 121
[2024-11-03 13:24:47,446 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:24:47,446 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:24:47,449 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0
[2024-11-03 13:24:47,647 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:24:47,647 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:24:47,648 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:24:47,648 INFO  L85        PathProgramCache]: Analyzing trace with hash -1847668821, now seen corresponding path program 1 times
[2024-11-03 13:24:47,648 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:24:47,649 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [233098542]
[2024-11-03 13:24:47,649 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:24:47,649 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:24:47,649 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:24:47,651 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 13:24:47,652 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process
[2024-11-03 13:24:47,722 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:24:47,723 INFO  L255         TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-03 13:24:47,729 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 13:24:48,207 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 317 proven. 21 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked.
[2024-11-03 13:24:48,207 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 13:24:48,630 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 30 proven. 21 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked.
[2024-11-03 13:24:48,630 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 13:24:48,630 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [233098542]
[2024-11-03 13:24:48,631 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [233098542] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 13:24:48,631 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 13:24:48,631 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14
[2024-11-03 13:24:48,631 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321181611]
[2024-11-03 13:24:48,631 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 13:24:48,632 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2024-11-03 13:24:48,632 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 13:24:48,633 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2024-11-03 13:24:48,633 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182
[2024-11-03 13:24:48,633 INFO  L87              Difference]: Start difference. First operand 92 states and 135 transitions. Second operand  has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 4 states have call successors, (36), 3 states have call predecessors, (36), 5 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36)
[2024-11-03 13:24:50,268 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 13:24:50,268 INFO  L93              Difference]: Finished difference Result 272 states and 388 transitions.
[2024-11-03 13:24:50,268 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2024-11-03 13:24:50,269 INFO  L78                 Accepts]: Start accepts. Automaton has  has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 4 states have call successors, (36), 3 states have call predecessors, (36), 5 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) Word has length 120
[2024-11-03 13:24:50,269 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 13:24:50,271 INFO  L225             Difference]: With dead ends: 272
[2024-11-03 13:24:50,271 INFO  L226             Difference]: Without dead ends: 218
[2024-11-03 13:24:50,275 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=169, Invalid=337, Unknown=0, NotChecked=0, Total=506
[2024-11-03 13:24:50,276 INFO  L432           NwaCegarLoop]: 70 mSDtfsCounter, 266 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2024-11-03 13:24:50,276 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 329 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2024-11-03 13:24:50,279 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 218 states.
[2024-11-03 13:24:50,319 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 161.
[2024-11-03 13:24:50,320 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 161 states, 101 states have (on average 1.2178217821782178) internal successors, (123), 101 states have internal predecessors, (123), 54 states have call successors, (54), 5 states have call predecessors, (54), 5 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54)
[2024-11-03 13:24:50,322 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 231 transitions.
[2024-11-03 13:24:50,323 INFO  L78                 Accepts]: Start accepts. Automaton has 161 states and 231 transitions. Word has length 120
[2024-11-03 13:24:50,323 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 13:24:50,324 INFO  L471      AbstractCegarLoop]: Abstraction has 161 states and 231 transitions.
[2024-11-03 13:24:50,324 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 4 states have call successors, (36), 3 states have call predecessors, (36), 5 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36)
[2024-11-03 13:24:50,324 INFO  L276                IsEmpty]: Start isEmpty. Operand 161 states and 231 transitions.
[2024-11-03 13:24:50,326 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 121
[2024-11-03 13:24:50,326 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:24:50,326 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:24:50,330 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Forceful destruction successful, exit code 0
[2024-11-03 13:24:50,528 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:24:50,529 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:24:50,529 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:24:50,529 INFO  L85        PathProgramCache]: Analyzing trace with hash 1767240105, now seen corresponding path program 1 times
[2024-11-03 13:24:50,530 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:24:50,530 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [707126291]
[2024-11-03 13:24:50,530 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:24:50,530 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:24:50,530 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:24:50,532 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 13:24:50,533 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process
[2024-11-03 13:24:50,616 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:24:50,623 INFO  L255         TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 30 conjuncts are in the unsatisfiable core
[2024-11-03 13:24:50,633 INFO  L278         TraceCheckSpWp]: Computing forward predicates...