/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 'cvc4 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-96.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 02:00:40,508 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 02:00:40,595 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 02:00:40,601 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 02:00:40,601 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 02:00:40,621 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 02:00:40,621 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 02:00:40,622 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 02:00:40,622 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 02:00:40,623 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 02:00:40,623 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 02:00:40,624 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 02:00:40,624 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 02:00:40,628 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 02:00:40,628 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 02:00:40,629 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 02:00:40,629 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 02:00:40,629 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 02:00:40,629 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 02:00:40,629 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 02:00:40,630 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 02:00:40,632 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 02:00:40,632 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 02:00:40,633 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 02:00:40,633 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 02:00:40,633 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 02:00:40,633 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 02:00:40,633 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 02:00:40,633 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 02:00:40,634 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 02:00:40,634 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 02:00:40,634 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 02:00:40,634 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 02:00:40,635 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 02:00:40,635 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 02:00:40,635 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 02:00:40,635 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 02:00:40,635 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 02:00:40,636 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 02:00:40,636 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 02:00:40,636 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 02:00:40,637 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 02:00:40,637 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 02:00:40,637 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 02:00:40,637 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt
[2024-11-03 02:00:40,873 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 02:00:40,891 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 02:00:40,894 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 02:00:40,895 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 02:00:40,895 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 02:00:40,896 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-96.i
[2024-11-03 02:00:42,268 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 02:00:42,486 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 02:00:42,487 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-96.i
[2024-11-03 02:00:42,503 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edc81cd97/474799bfa64e4191ba4178f7ce4bb0dc/FLAG51db99ee2
[2024-11-03 02:00:42,522 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edc81cd97/474799bfa64e4191ba4178f7ce4bb0dc
[2024-11-03 02:00:42,525 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 02:00:42,527 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 02:00:42,529 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 02:00:42,530 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 02:00:42,535 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 02:00:42,535 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:00:42" (1/1) ...
[2024-11-03 02:00:42,537 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ad92819 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:42, skipping insertion in model container
[2024-11-03 02:00:42,537 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:00:42" (1/1) ...
[2024-11-03 02:00:42,569 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 02:00:42,747 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-96.i[915,928]
[2024-11-03 02:00:42,817 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 02:00:42,836 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 02:00:42,848 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-96.i[915,928]
[2024-11-03 02:00:42,889 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 02:00:42,906 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 02:00:42,906 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:42 WrapperNode
[2024-11-03 02:00:42,907 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 02:00:42,908 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 02:00:42,908 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 02:00:42,908 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 02:00:42,915 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:42" (1/1) ...
[2024-11-03 02:00:42,936 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:42" (1/1) ...
[2024-11-03 02:00:42,963 INFO  L138                Inliner]: procedures = 27, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 153
[2024-11-03 02:00:42,964 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 02:00:42,964 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 02:00:42,965 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 02:00:42,965 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 02:00:42,977 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:42" (1/1) ...
[2024-11-03 02:00:42,977 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:42" (1/1) ...
[2024-11-03 02:00:42,985 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:42" (1/1) ...
[2024-11-03 02:00:43,002 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 02:00:43,002 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:42" (1/1) ...
[2024-11-03 02:00:43,003 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:42" (1/1) ...
[2024-11-03 02:00:43,015 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:42" (1/1) ...
[2024-11-03 02:00:43,018 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:42" (1/1) ...
[2024-11-03 02:00:43,021 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:42" (1/1) ...
[2024-11-03 02:00:43,023 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:42" (1/1) ...
[2024-11-03 02:00:43,026 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 02:00:43,027 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 02:00:43,027 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 02:00:43,027 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 02:00:43,028 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:42" (1/1) ...
[2024-11-03 02:00:43,037 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 02:00:43,046 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 02:00:43,058 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 02:00:43,060 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 02:00:43,079 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 02:00:43,080 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 02:00:43,080 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 02:00:43,080 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 02:00:43,080 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 02:00:43,080 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 02:00:43,172 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 02:00:43,175 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 02:00:46,025 INFO  L?                        ?]: Removed 10 outVars from TransFormulas that were not future-live.
[2024-11-03 02:00:46,026 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 02:00:46,041 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 02:00:46,042 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 02:00:46,042 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:00:46 BoogieIcfgContainer
[2024-11-03 02:00:46,042 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 02:00:46,045 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 02:00:46,045 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 02:00:46,047 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 02:00:46,048 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:00:42" (1/3) ...
[2024-11-03 02:00:46,048 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b888843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:00:46, skipping insertion in model container
[2024-11-03 02:00:46,048 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:42" (2/3) ...
[2024-11-03 02:00:46,049 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b888843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:00:46, skipping insertion in model container
[2024-11-03 02:00:46,049 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:00:46" (3/3) ...
[2024-11-03 02:00:46,050 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-96.i
[2024-11-03 02:00:46,069 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 02:00:46,069 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 02:00:46,137 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 02:00:46,143 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;@580d06fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 02:00:46,144 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 02:00:46,147 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 73 states, 43 states have (on average 1.3255813953488371) internal successors, (57), 44 states have internal predecessors, (57), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27)
[2024-11-03 02:00:46,159 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 168
[2024-11-03 02:00:46,159 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 02:00:46,160 INFO  L215           NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:00:46,160 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 02:00:46,164 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 02:00:46,165 INFO  L85        PathProgramCache]: Analyzing trace with hash 2110557727, now seen corresponding path program 1 times
[2024-11-03 02:00:46,171 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 02:00:46,171 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [434564942]
[2024-11-03 02:00:46,172 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 02:00:46,173 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 02:00:46,174 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 02:00:46,175 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 02:00:46,177 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process
[2024-11-03 02:00:46,561 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 02:00:46,570 INFO  L255         TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 02:00:46,581 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 02:00:46,629 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 1352 trivial. 0 not checked.
[2024-11-03 02:00:46,630 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 02:00:46,958 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 1352 trivial. 0 not checked.
[2024-11-03 02:00:46,959 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 02:00:46,960 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [434564942]
[2024-11-03 02:00:46,961 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [434564942] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 02:00:46,961 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 02:00:46,961 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 02:00:46,963 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441837602]
[2024-11-03 02:00:46,963 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 02:00:46,968 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 02:00:46,968 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 02:00:46,989 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 02:00:46,990 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 02:00:46,992 INFO  L87              Difference]: Start difference. First operand  has 73 states, 43 states have (on average 1.3255813953488371) internal successors, (57), 44 states have internal predecessors, (57), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand  has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 1 states have call successors, (27), 1 states have call predecessors, (27), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27)
[2024-11-03 02:00:47,033 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 02:00:47,033 INFO  L93              Difference]: Finished difference Result 136 states and 237 transitions.
[2024-11-03 02:00:47,035 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 02:00:47,037 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 1 states have call successors, (27), 1 states have call predecessors, (27), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) Word has length 167
[2024-11-03 02:00:47,037 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 02:00:47,044 INFO  L225             Difference]: With dead ends: 136
[2024-11-03 02:00:47,045 INFO  L226             Difference]: Without dead ends: 66
[2024-11-03 02:00:47,049 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 332 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 02:00:47,056 INFO  L432           NwaCegarLoop]: 97 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, 97 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 02:00:47,057 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 02:00:47,075 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 66 states.
[2024-11-03 02:00:47,098 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66.
[2024-11-03 02:00:47,100 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 66 states, 37 states have (on average 1.162162162162162) internal successors, (43), 37 states have internal predecessors, (43), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27)
[2024-11-03 02:00:47,102 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 97 transitions.
[2024-11-03 02:00:47,104 INFO  L78                 Accepts]: Start accepts. Automaton has 66 states and 97 transitions. Word has length 167
[2024-11-03 02:00:47,105 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 02:00:47,105 INFO  L471      AbstractCegarLoop]: Abstraction has 66 states and 97 transitions.
[2024-11-03 02:00:47,105 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 1 states have call successors, (27), 1 states have call predecessors, (27), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27)
[2024-11-03 02:00:47,106 INFO  L276                IsEmpty]: Start isEmpty. Operand 66 states and 97 transitions.
[2024-11-03 02:00:47,109 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 168
[2024-11-03 02:00:47,109 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 02:00:47,109 INFO  L215           NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:00:47,115 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0
[2024-11-03 02:00:47,310 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 02:00:47,311 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 02:00:47,312 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 02:00:47,312 INFO  L85        PathProgramCache]: Analyzing trace with hash 296320473, now seen corresponding path program 1 times
[2024-11-03 02:00:47,312 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 02:00:47,312 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [858879669]
[2024-11-03 02:00:47,312 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 02:00:47,313 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 02:00:47,313 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 02:00:47,314 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 02:00:47,315 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process
[2024-11-03 02:00:47,855 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 02:00:47,862 INFO  L255         TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-03 02:00:47,869 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 02:00:48,677 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked.
[2024-11-03 02:00:48,678 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 02:00:49,201 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked.
[2024-11-03 02:00:49,201 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 02:00:49,202 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [858879669]
[2024-11-03 02:00:49,202 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [858879669] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 02:00:49,202 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 02:00:49,202 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6
[2024-11-03 02:00:49,202 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376495764]
[2024-11-03 02:00:49,202 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 02:00:49,204 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-03 02:00:49,204 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 02:00:49,205 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-03 02:00:49,205 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-03 02:00:49,206 INFO  L87              Difference]: Start difference. First operand 66 states and 97 transitions. Second operand  has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54)
[2024-11-03 02:00:50,523 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 02:00:51,686 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 02:00:53,259 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 02:00:53,292 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 02:00:53,292 INFO  L93              Difference]: Finished difference Result 208 states and 305 transitions.
[2024-11-03 02:00:53,311 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-03 02:00:53,312 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 167
[2024-11-03 02:00:53,313 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 02:00:53,315 INFO  L225             Difference]: With dead ends: 208
[2024-11-03 02:00:53,315 INFO  L226             Difference]: Without dead ends: 145
[2024-11-03 02:00:53,317 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-03 02:00:53,318 INFO  L432           NwaCegarLoop]: 94 mSDtfsCounter, 116 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time
[2024-11-03 02:00:53,318 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 295 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time]
[2024-11-03 02:00:53,319 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 145 states.
[2024-11-03 02:00:53,358 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 115.
[2024-11-03 02:00:53,359 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 115 states, 58 states have (on average 1.103448275862069) internal successors, (64), 58 states have internal predecessors, (64), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54)
[2024-11-03 02:00:53,361 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 172 transitions.
[2024-11-03 02:00:53,363 INFO  L78                 Accepts]: Start accepts. Automaton has 115 states and 172 transitions. Word has length 167
[2024-11-03 02:00:53,364 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 02:00:53,364 INFO  L471      AbstractCegarLoop]: Abstraction has 115 states and 172 transitions.
[2024-11-03 02:00:53,365 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54)
[2024-11-03 02:00:53,365 INFO  L276                IsEmpty]: Start isEmpty. Operand 115 states and 172 transitions.
[2024-11-03 02:00:53,370 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 168
[2024-11-03 02:00:53,370 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 02:00:53,370 INFO  L215           NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:00:53,381 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0
[2024-11-03 02:00:53,571 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 02:00:53,571 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 02:00:53,572 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 02:00:53,572 INFO  L85        PathProgramCache]: Analyzing trace with hash 554485911, now seen corresponding path program 1 times
[2024-11-03 02:00:53,572 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 02:00:53,572 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1234609060]
[2024-11-03 02:00:53,572 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 02:00:53,573 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 02:00:53,573 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 02:00:53,575 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 02:00:53,576 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process
[2024-11-03 02:00:54,118 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 02:00:54,127 INFO  L255         TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-03 02:00:54,133 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 02:00:54,613 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 686 proven. 48 refuted. 0 times theorem prover too weak. 670 trivial. 0 not checked.
[2024-11-03 02:00:54,614 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 02:00:55,537 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 30 proven. 48 refuted. 0 times theorem prover too weak. 1326 trivial. 0 not checked.
[2024-11-03 02:00:55,538 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 02:00:55,538 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1234609060]
[2024-11-03 02:00:55,538 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1234609060] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 02:00:55,538 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 02:00:55,539 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10
[2024-11-03 02:00:55,539 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144918491]
[2024-11-03 02:00:55,539 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 02:00:55,540 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-03 02:00:55,540 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 02:00:55,541 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-03 02:00:55,541 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90
[2024-11-03 02:00:55,541 INFO  L87              Difference]: Start difference. First operand 115 states and 172 transitions. Second operand  has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 3 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44)
[2024-11-03 02:00:59,445 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 02:01:00,636 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 02:01:00,637 INFO  L93              Difference]: Finished difference Result 259 states and 375 transitions.
[2024-11-03 02:01:00,637 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2024-11-03 02:01:00,638 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 3 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 167
[2024-11-03 02:01:00,638 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 02:01:00,641 INFO  L225             Difference]: With dead ends: 259
[2024-11-03 02:01:00,641 INFO  L226             Difference]: Without dead ends: 196
[2024-11-03 02:01:00,642 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342
[2024-11-03 02:01:00,643 INFO  L432           NwaCegarLoop]: 117 mSDtfsCounter, 184 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time
[2024-11-03 02:01:00,644 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 298 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time]
[2024-11-03 02:01:00,645 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 196 states.
[2024-11-03 02:01:00,668 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 124.
[2024-11-03 02:01:00,669 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 124 states, 65 states have (on average 1.0923076923076922) internal successors, (71), 65 states have internal predecessors, (71), 54 states have call successors, (54), 4 states have call predecessors, (54), 4 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54)
[2024-11-03 02:01:00,670 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 179 transitions.
[2024-11-03 02:01:00,671 INFO  L78                 Accepts]: Start accepts. Automaton has 124 states and 179 transitions. Word has length 167
[2024-11-03 02:01:00,671 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 02:01:00,672 INFO  L471      AbstractCegarLoop]: Abstraction has 124 states and 179 transitions.
[2024-11-03 02:01:00,672 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 3 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44)
[2024-11-03 02:01:00,672 INFO  L276                IsEmpty]: Start isEmpty. Operand 124 states and 179 transitions.
[2024-11-03 02:01:00,674 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 168
[2024-11-03 02:01:00,674 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 02:01:00,674 INFO  L215           NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:01:00,684 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0
[2024-11-03 02:01:00,875 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 02:01:00,876 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 02:01:00,876 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 02:01:00,876 INFO  L85        PathProgramCache]: Analyzing trace with hash 556332953, now seen corresponding path program 1 times
[2024-11-03 02:01:00,876 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 02:01:00,877 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1084872498]
[2024-11-03 02:01:00,877 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 02:01:00,877 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 02:01:00,877 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 02:01:00,878 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 02:01:00,880 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process
[2024-11-03 02:01:01,691 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 02:01:01,702 INFO  L255         TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 64 conjuncts are in the unsatisfiable core
[2024-11-03 02:01:01,714 INFO  L278         TraceCheckSpWp]: Computing forward predicates...