/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-88.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 13:33:40,936 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 13:33:40,981 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 13:33:40,984 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 13:33:40,984 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 13:33:41,004 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 13:33:41,006 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 13:33:41,006 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 13:33:41,007 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 13:33:41,009 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 13:33:41,010 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 13:33:41,010 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 13:33:41,010 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 13:33:41,010 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 13:33:41,011 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 13:33:41,011 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 13:33:41,011 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 13:33:41,011 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 13:33:41,011 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 13:33:41,011 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 13:33:41,012 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 13:33:41,013 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 13:33:41,013 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 13:33:41,014 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 13:33:41,014 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 13:33:41,014 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 13:33:41,014 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 13:33:41,014 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 13:33:41,014 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 13:33:41,014 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 13:33:41,015 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 13:33:41,015 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 13:33:41,015 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 13:33:41,015 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 13:33:41,015 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 13:33:41,015 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 13:33:41,015 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 13:33:41,016 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 13:33:41,016 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 13:33:41,016 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 13:33:41,016 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 13:33:41,017 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 13:33:41,017 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 13:33:41,017 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 13:33:41,018 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla
[2024-11-03 13:33:41,210 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 13:33:41,236 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 13:33:41,238 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 13:33:41,238 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 13:33:41,239 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 13:33:41,240 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-88.i
[2024-11-03 13:33:42,517 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 13:33:42,683 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 13:33:42,683 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-88.i
[2024-11-03 13:33:42,692 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3db82b6fe/fccda38d222642c5bec695a520617f42/FLAGb890f0699
[2024-11-03 13:33:43,078 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3db82b6fe/fccda38d222642c5bec695a520617f42
[2024-11-03 13:33:43,080 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 13:33:43,082 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 13:33:43,082 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 13:33:43,083 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 13:33:43,086 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 13:33:43,087 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:33:43" (1/1) ...
[2024-11-03 13:33:43,087 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15fd3f6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:33:43, skipping insertion in model container
[2024-11-03 13:33:43,088 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:33:43" (1/1) ...
[2024-11-03 13:33:43,108 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 13:33:43,226 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-88.i[915,928]
[2024-11-03 13:33:43,282 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 13:33:43,297 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 13:33:43,306 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-88.i[915,928]
[2024-11-03 13:33:43,335 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 13:33:43,356 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 13:33:43,357 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:33:43 WrapperNode
[2024-11-03 13:33:43,357 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 13:33:43,358 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 13:33:43,358 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 13:33:43,358 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 13:33:43,363 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:33:43" (1/1) ...
[2024-11-03 13:33:43,382 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:33:43" (1/1) ...
[2024-11-03 13:33:43,406 INFO  L138                Inliner]: procedures = 27, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 155
[2024-11-03 13:33:43,407 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 13:33:43,407 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 13:33:43,407 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 13:33:43,407 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 13:33:43,416 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:33:43" (1/1) ...
[2024-11-03 13:33:43,416 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:33:43" (1/1) ...
[2024-11-03 13:33:43,420 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:33:43" (1/1) ...
[2024-11-03 13:33:43,431 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 13:33:43,435 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:33:43" (1/1) ...
[2024-11-03 13:33:43,436 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:33:43" (1/1) ...
[2024-11-03 13:33:43,448 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:33:43" (1/1) ...
[2024-11-03 13:33:43,451 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:33:43" (1/1) ...
[2024-11-03 13:33:43,463 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:33:43" (1/1) ...
[2024-11-03 13:33:43,464 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:33:43" (1/1) ...
[2024-11-03 13:33:43,467 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 13:33:43,468 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 13:33:43,468 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 13:33:43,468 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 13:33:43,473 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:33:43" (1/1) ...
[2024-11-03 13:33:43,481 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 13:33:43,491 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 13:33:43,507 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 13:33:43,510 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 13:33:43,527 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 13:33:43,527 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 13:33:43,527 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 13:33:43,527 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 13:33:43,527 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 13:33:43,527 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 13:33:43,620 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 13:33:43,621 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 13:33:53,015 INFO  L?                        ?]: Removed 16 outVars from TransFormulas that were not future-live.
[2024-11-03 13:33:53,015 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 13:33:53,027 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 13:33:53,027 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 13:33:53,027 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:33:53 BoogieIcfgContainer
[2024-11-03 13:33:53,028 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 13:33:53,029 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 13:33:53,029 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 13:33:53,031 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 13:33:53,032 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:33:43" (1/3) ...
[2024-11-03 13:33:53,032 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d188acd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:33:53, skipping insertion in model container
[2024-11-03 13:33:53,033 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:33:43" (2/3) ...
[2024-11-03 13:33:53,033 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d188acd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:33:53, skipping insertion in model container
[2024-11-03 13:33:53,034 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:33:53" (3/3) ...
[2024-11-03 13:33:53,036 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-88.i
[2024-11-03 13:33:53,047 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 13:33:53,047 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 13:33:53,093 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 13:33:53,098 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;@6129fb4a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 13:33:53,098 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 13:33:53,101 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 70 states, 43 states have (on average 1.372093023255814) internal successors, (59), 44 states have internal predecessors, (59), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24)
[2024-11-03 13:33:53,111 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 152
[2024-11-03 13:33:53,112 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:33:53,112 INFO  L215           NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:33:53,113 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:33:53,117 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:33:53,117 INFO  L85        PathProgramCache]: Analyzing trace with hash 535919197, now seen corresponding path program 1 times
[2024-11-03 13:33:53,123 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:33:53,123 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [903396096]
[2024-11-03 13:33:53,124 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:33:53,125 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:33:53,125 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:33:53,131 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 13:33:53,132 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process
[2024-11-03 13:33:53,273 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:33:53,277 INFO  L255         TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 13:33:53,287 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 13:33:53,324 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 1058 trivial. 0 not checked.
[2024-11-03 13:33:53,324 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 13:33:54,245 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 1058 trivial. 0 not checked.
[2024-11-03 13:33:54,245 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 13:33:54,246 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [903396096]
[2024-11-03 13:33:54,246 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [903396096] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 13:33:54,246 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 13:33:54,246 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 13:33:54,248 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295210202]
[2024-11-03 13:33:54,248 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 13:33:54,251 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 13:33:54,251 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 13:33:54,268 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 13:33:54,268 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 13:33:54,270 INFO  L87              Difference]: Start difference. First operand  has 70 states, 43 states have (on average 1.372093023255814) internal successors, (59), 44 states have internal predecessors, (59), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand  has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 1 states have call successors, (24)
[2024-11-03 13:33:54,290 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 13:33:54,291 INFO  L93              Difference]: Finished difference Result 133 states and 232 transitions.
[2024-11-03 13:33:54,292 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 13:33:54,293 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 1 states have call successors, (24) Word has length 151
[2024-11-03 13:33:54,293 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 13:33:54,298 INFO  L225             Difference]: With dead ends: 133
[2024-11-03 13:33:54,298 INFO  L226             Difference]: Without dead ends: 66
[2024-11-03 13:33:54,301 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 300 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 13:33:54,304 INFO  L432           NwaCegarLoop]: 100 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, 100 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 13:33:54,305 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 13:33:54,316 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 66 states.
[2024-11-03 13:33:54,341 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66.
[2024-11-03 13:33:54,342 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 66 states, 40 states have (on average 1.3) internal successors, (52), 40 states have internal predecessors, (52), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24)
[2024-11-03 13:33:54,343 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 100 transitions.
[2024-11-03 13:33:54,346 INFO  L78                 Accepts]: Start accepts. Automaton has 66 states and 100 transitions. Word has length 151
[2024-11-03 13:33:54,346 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 13:33:54,346 INFO  L471      AbstractCegarLoop]: Abstraction has 66 states and 100 transitions.
[2024-11-03 13:33:54,347 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 1 states have call successors, (24)
[2024-11-03 13:33:54,347 INFO  L276                IsEmpty]: Start isEmpty. Operand 66 states and 100 transitions.
[2024-11-03 13:33:54,353 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 152
[2024-11-03 13:33:54,353 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:33:54,353 INFO  L215           NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:33:54,357 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0
[2024-11-03 13:33:54,553 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:33:54,554 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:33:54,554 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:33:54,555 INFO  L85        PathProgramCache]: Analyzing trace with hash 325807633, now seen corresponding path program 1 times
[2024-11-03 13:33:54,555 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:33:54,555 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [600338090]
[2024-11-03 13:33:54,555 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:33:54,555 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:33:54,555 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:33:54,558 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 13:33:54,559 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process
[2024-11-03 13:33:54,645 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:33:54,647 INFO  L255         TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-03 13:33:54,653 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 13:34:00,264 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked.
[2024-11-03 13:34:00,264 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 13:34:06,028 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked.
[2024-11-03 13:34:06,028 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 13:34:06,028 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [600338090]
[2024-11-03 13:34:06,029 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [600338090] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 13:34:06,029 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 13:34:06,029 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8
[2024-11-03 13:34:06,029 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138709119]
[2024-11-03 13:34:06,029 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 13:34:06,030 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-03 13:34:06,030 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 13:34:06,031 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-03 13:34:06,031 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2024-11-03 13:34:06,031 INFO  L87              Difference]: Start difference. First operand 66 states and 100 transitions. Second operand  has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48)
[2024-11-03 13:34:12,934 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 13:34:16,945 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 13:34:20,952 WARN  L539   Checker$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 [0]
[2024-11-03 13:34:24,957 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 13:34:28,970 WARN  L539   Checker$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 [1]
[2024-11-03 13:34:33,596 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-03 13:34:37,608 WARN  L539   Checker$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 13:34:41,615 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 13:34:45,621 WARN  L539   Checker$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 [0]
[2024-11-03 13:34:49,629 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 13:34:53,638 WARN  L539   Checker$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 [1]
[2024-11-03 13:34:53,639 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 13:34:53,639 INFO  L93              Difference]: Finished difference Result 193 states and 295 transitions.
[2024-11-03 13:34:53,730 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-03 13:34:53,731 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 151
[2024-11-03 13:34:53,731 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 13:34:53,734 INFO  L225             Difference]: With dead ends: 193
[2024-11-03 13:34:53,735 INFO  L226             Difference]: Without dead ends: 130
[2024-11-03 13:34:53,735 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90
[2024-11-03 13:34:53,736 INFO  L432           NwaCegarLoop]: 95 mSDtfsCounter, 86 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 50 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.2s IncrementalHoareTripleChecker+Time
[2024-11-03 13:34:53,736 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 455 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 131 Invalid, 11 Unknown, 0 Unchecked, 47.2s Time]
[2024-11-03 13:34:53,737 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 130 states.
[2024-11-03 13:34:53,766 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 111.
[2024-11-03 13:34:53,767 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 111 states, 60 states have (on average 1.2) internal successors, (72), 60 states have internal predecessors, (72), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48)
[2024-11-03 13:34:53,771 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 168 transitions.
[2024-11-03 13:34:53,772 INFO  L78                 Accepts]: Start accepts. Automaton has 111 states and 168 transitions. Word has length 151
[2024-11-03 13:34:53,772 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 13:34:53,772 INFO  L471      AbstractCegarLoop]: Abstraction has 111 states and 168 transitions.
[2024-11-03 13:34:53,773 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48)
[2024-11-03 13:34:53,773 INFO  L276                IsEmpty]: Start isEmpty. Operand 111 states and 168 transitions.
[2024-11-03 13:34:53,774 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 152
[2024-11-03 13:34:53,775 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:34:53,776 INFO  L215           NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:34:53,783 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0
[2024-11-03 13:34:53,979 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:34:53,980 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:34:53,981 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:34:53,981 INFO  L85        PathProgramCache]: Analyzing trace with hash 583973071, now seen corresponding path program 1 times
[2024-11-03 13:34:53,981 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:34:53,981 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1435830578]
[2024-11-03 13:34:53,981 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:34:53,981 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:34:53,981 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:34:53,983 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 13:34:53,984 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process
[2024-11-03 13:34:54,057 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:34:54,058 INFO  L255         TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-03 13:34:54,061 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 13:34:56,403 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 519 proven. 45 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked.
[2024-11-03 13:34:56,403 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 13:34:58,794 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 24 proven. 45 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked.
[2024-11-03 13:34:58,794 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 13:34:58,794 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1435830578]
[2024-11-03 13:34:58,794 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1435830578] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 13:34:58,794 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 13:34:58,794 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8
[2024-11-03 13:34:58,795 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999510416]
[2024-11-03 13:34:58,795 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 13:34:58,795 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-03 13:34:58,795 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 13:34:58,796 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-03 13:34:58,796 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-11-03 13:34:58,796 INFO  L87              Difference]: Start difference. First operand 111 states and 168 transitions. Second operand  has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 2 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40)
[2024-11-03 13:35:05,497 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 13:35:09,507 WARN  L539   Checker$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 13:35:13,514 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 13:35:17,523 WARN  L539   Checker$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 13:35:17,530 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 13:35:17,531 INFO  L93              Difference]: Finished difference Result 190 states and 279 transitions.
[2024-11-03 13:35:17,615 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2024-11-03 13:35:17,616 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 2 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 151
[2024-11-03 13:35:17,617 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 13:35:17,618 INFO  L225             Difference]: With dead ends: 190
[2024-11-03 13:35:17,618 INFO  L226             Difference]: Without dead ends: 127
[2024-11-03 13:35:17,619 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 293 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156
[2024-11-03 13:35:17,619 INFO  L432           NwaCegarLoop]: 70 mSDtfsCounter, 73 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 25 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time
[2024-11-03 13:35:17,620 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 228 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 170 Invalid, 4 Unknown, 0 Unchecked, 18.2s Time]
[2024-11-03 13:35:17,621 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 127 states.
[2024-11-03 13:35:17,657 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 119.
[2024-11-03 13:35:17,657 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 119 states, 66 states have (on average 1.1666666666666667) internal successors, (77), 66 states have internal predecessors, (77), 48 states have call successors, (48), 4 states have call predecessors, (48), 4 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48)
[2024-11-03 13:35:17,664 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 173 transitions.
[2024-11-03 13:35:17,665 INFO  L78                 Accepts]: Start accepts. Automaton has 119 states and 173 transitions. Word has length 151
[2024-11-03 13:35:17,665 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 13:35:17,665 INFO  L471      AbstractCegarLoop]: Abstraction has 119 states and 173 transitions.
[2024-11-03 13:35:17,666 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 2 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40)
[2024-11-03 13:35:17,666 INFO  L276                IsEmpty]: Start isEmpty. Operand 119 states and 173 transitions.
[2024-11-03 13:35:17,667 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 152
[2024-11-03 13:35:17,667 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:35:17,667 INFO  L215           NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:35:17,673 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Ended with exit code 0
[2024-11-03 13:35:17,872 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:35:17,873 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:35:17,873 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:35:17,873 INFO  L85        PathProgramCache]: Analyzing trace with hash 585820113, now seen corresponding path program 1 times
[2024-11-03 13:35:17,873 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:35:17,873 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1737387795]
[2024-11-03 13:35:17,874 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:35:17,874 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:35:17,874 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:35:17,878 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 13:35:17,880 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process
[2024-11-03 13:35:17,938 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:35:17,939 INFO  L255         TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 26 conjuncts are in the unsatisfiable core
[2024-11-03 13:35:17,945 INFO  L278         TraceCheckSpWp]: Computing forward predicates...