/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_amount100_file-27.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 00:55:50,424 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 00:55:50,486 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 00:55:50,490 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 00:55:50,490 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 00:55:50,520 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 00:55:50,521 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 00:55:50,522 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 00:55:50,522 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 00:55:50,524 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 00:55:50,524 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 00:55:50,524 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 00:55:50,525 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 00:55:50,525 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 00:55:50,527 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 00:55:50,527 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 00:55:50,527 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 00:55:50,528 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 00:55:50,528 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 00:55:50,528 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 00:55:50,528 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 00:55:50,532 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 00:55:50,532 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 00:55:50,532 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 00:55:50,532 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 00:55:50,533 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 00:55:50,533 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 00:55:50,533 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 00:55:50,533 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 00:55:50,533 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 00:55:50,534 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 00:55:50,534 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 00:55:50,534 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 00:55:50,534 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 00:55:50,534 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 00:55:50,535 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 00:55:50,535 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 00:55:50,535 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 00:55:50,536 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 00:55:50,536 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 00:55:50,536 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 00:55:50,536 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 00:55:50,537 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 00:55:50,537 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 00:55:50,537 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt
[2024-11-03 00:55:50,763 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 00:55:50,784 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 00:55:50,787 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 00:55:50,788 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 00:55:50,788 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 00:55:50,789 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-27.i
[2024-11-03 00:55:52,177 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 00:55:52,412 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 00:55:52,413 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-27.i
[2024-11-03 00:55:52,425 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25845f524/730949e964ea4ee4a93d72577381ef10/FLAGc0a5faf4d
[2024-11-03 00:55:52,758 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25845f524/730949e964ea4ee4a93d72577381ef10
[2024-11-03 00:55:52,760 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 00:55:52,761 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 00:55:52,762 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 00:55:52,762 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 00:55:52,768 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 00:55:52,768 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:55:52" (1/1) ...
[2024-11-03 00:55:52,769 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61f1a18a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:52, skipping insertion in model container
[2024-11-03 00:55:52,769 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:55:52" (1/1) ...
[2024-11-03 00:55:52,808 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 00:55:52,974 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_amount100_file-27.i[916,929]
[2024-11-03 00:55:53,056 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 00:55:53,071 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 00:55:53,083 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_amount100_file-27.i[916,929]
[2024-11-03 00:55:53,128 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 00:55:53,146 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 00:55:53,147 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:53 WrapperNode
[2024-11-03 00:55:53,147 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 00:55:53,148 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 00:55:53,148 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 00:55:53,148 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 00:55:53,155 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:53" (1/1) ...
[2024-11-03 00:55:53,176 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:53" (1/1) ...
[2024-11-03 00:55:53,211 INFO  L138                Inliner]: procedures = 27, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 186
[2024-11-03 00:55:53,211 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 00:55:53,212 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 00:55:53,212 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 00:55:53,212 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 00:55:53,225 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:53" (1/1) ...
[2024-11-03 00:55:53,226 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:53" (1/1) ...
[2024-11-03 00:55:53,230 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:53" (1/1) ...
[2024-11-03 00:55:53,246 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 00:55:53,246 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:53" (1/1) ...
[2024-11-03 00:55:53,246 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:53" (1/1) ...
[2024-11-03 00:55:53,260 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:53" (1/1) ...
[2024-11-03 00:55:53,265 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:53" (1/1) ...
[2024-11-03 00:55:53,274 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:53" (1/1) ...
[2024-11-03 00:55:53,276 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:53" (1/1) ...
[2024-11-03 00:55:53,285 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 00:55:53,286 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 00:55:53,286 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 00:55:53,286 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 00:55:53,288 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:53" (1/1) ...
[2024-11-03 00:55:53,294 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 00:55:53,306 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 00:55:53,321 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 00:55:53,325 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 00:55:53,352 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 00:55:53,352 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 00:55:53,352 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 00:55:53,352 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 00:55:53,352 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 00:55:53,352 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 00:55:53,447 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 00:55:53,450 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 00:55:56,114 INFO  L?                        ?]: Removed 20 outVars from TransFormulas that were not future-live.
[2024-11-03 00:55:56,115 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 00:55:56,129 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 00:55:56,129 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 00:55:56,130 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:55:56 BoogieIcfgContainer
[2024-11-03 00:55:56,130 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 00:55:56,152 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 00:55:56,152 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 00:55:56,155 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 00:55:56,156 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:55:52" (1/3) ...
[2024-11-03 00:55:56,156 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@146a80ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:55:56, skipping insertion in model container
[2024-11-03 00:55:56,156 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:53" (2/3) ...
[2024-11-03 00:55:56,157 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@146a80ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:55:56, skipping insertion in model container
[2024-11-03 00:55:56,157 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:55:56" (3/3) ...
[2024-11-03 00:55:56,158 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-27.i
[2024-11-03 00:55:56,170 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 00:55:56,171 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 00:55:56,229 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 00:55:56,233 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;@31d52a8f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 00:55:56,233 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 00:55:56,237 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 86 states, 56 states have (on average 1.4107142857142858) internal successors, (79), 57 states have internal predecessors, (79), 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 00:55:56,248 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 178
[2024-11-03 00:55:56,248 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 00:55:56,249 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 00:55:56,249 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 00:55:56,253 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 00:55:56,254 INFO  L85        PathProgramCache]: Analyzing trace with hash 51728933, now seen corresponding path program 1 times
[2024-11-03 00:55:56,262 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 00:55:56,263 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1990197090]
[2024-11-03 00:55:56,263 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 00:55:56,266 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 00:55:56,266 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 00:55:56,269 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 00:55:56,271 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 00:55:56,733 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 00:55:56,757 INFO  L255         TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 00:55:56,775 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 00:55:56,829 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 00:55:56,829 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 00:55:57,148 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 00:55:57,149 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 00:55:57,149 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1990197090]
[2024-11-03 00:55:57,151 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1990197090] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 00:55:57,151 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 00:55:57,151 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 00:55:57,153 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722441373]
[2024-11-03 00:55:57,153 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 00:55:57,159 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 00:55:57,160 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 00:55:57,185 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 00:55:57,185 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 00:55:57,188 INFO  L87              Difference]: Start difference. First operand  has 86 states, 56 states have (on average 1.4107142857142858) internal successors, (79), 57 states have internal predecessors, (79), 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 22.5) internal successors, (45), 2 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27)
[2024-11-03 00:55:57,214 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 00:55:57,215 INFO  L93              Difference]: Finished difference Result 165 states and 287 transitions.
[2024-11-03 00:55:57,216 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 00:55:57,217 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 177
[2024-11-03 00:55:57,217 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 00:55:57,223 INFO  L225             Difference]: With dead ends: 165
[2024-11-03 00:55:57,223 INFO  L226             Difference]: Without dead ends: 82
[2024-11-03 00:55:57,226 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 352 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 00:55:57,229 INFO  L432           NwaCegarLoop]: 125 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, 125 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 00:55:57,230 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 00:55:57,242 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 82 states.
[2024-11-03 00:55:57,262 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82.
[2024-11-03 00:55:57,263 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 82 states, 53 states have (on average 1.3396226415094339) internal successors, (71), 53 states have internal predecessors, (71), 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 00:55:57,265 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 125 transitions.
[2024-11-03 00:55:57,266 INFO  L78                 Accepts]: Start accepts. Automaton has 82 states and 125 transitions. Word has length 177
[2024-11-03 00:55:57,267 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 00:55:57,267 INFO  L471      AbstractCegarLoop]: Abstraction has 82 states and 125 transitions.
[2024-11-03 00:55:57,267 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27)
[2024-11-03 00:55:57,267 INFO  L276                IsEmpty]: Start isEmpty. Operand 82 states and 125 transitions.
[2024-11-03 00:55:57,271 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 179
[2024-11-03 00:55:57,271 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 00:55:57,271 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 00:55:57,277 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 00:55:57,472 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 00:55:57,473 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 00:55:57,473 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 00:55:57,474 INFO  L85        PathProgramCache]: Analyzing trace with hash -1119708623, now seen corresponding path program 1 times
[2024-11-03 00:55:57,474 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 00:55:57,474 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [654606240]
[2024-11-03 00:55:57,474 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 00:55:57,474 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 00:55:57,475 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 00:55:57,476 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 00:55:57,478 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 00:55:57,931 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 00:55:57,953 INFO  L255         TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 00:55:57,958 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 00:55:57,999 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 00:55:57,999 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 00:55:58,287 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 00:55:58,289 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 00:55:58,289 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [654606240]
[2024-11-03 00:55:58,289 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [654606240] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 00:55:58,289 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 00:55:58,289 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-03 00:55:58,290 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606759605]
[2024-11-03 00:55:58,290 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 00:55:58,292 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 00:55:58,293 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 00:55:58,294 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 00:55:58,294 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 00:55:58,294 INFO  L87              Difference]: Start difference. First operand 82 states and 125 transitions. Second operand  has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27)
[2024-11-03 00:56:00,101 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 00:56:00,148 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 00:56:00,149 INFO  L93              Difference]: Finished difference Result 236 states and 361 transitions.
[2024-11-03 00:56:00,175 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 00:56:00,175 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 178
[2024-11-03 00:56:00,176 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 00:56:00,178 INFO  L225             Difference]: With dead ends: 236
[2024-11-03 00:56:00,179 INFO  L226             Difference]: Without dead ends: 157
[2024-11-03 00:56:00,180 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 00:56:00,181 INFO  L432           NwaCegarLoop]: 135 mSDtfsCounter, 115 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time
[2024-11-03 00:56:00,181 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 241 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time]
[2024-11-03 00:56:00,182 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 157 states.
[2024-11-03 00:56:00,196 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 93.
[2024-11-03 00:56:00,197 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 93 states, 64 states have (on average 1.328125) internal successors, (85), 64 states have internal predecessors, (85), 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 00:56:00,198 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 139 transitions.
[2024-11-03 00:56:00,199 INFO  L78                 Accepts]: Start accepts. Automaton has 93 states and 139 transitions. Word has length 178
[2024-11-03 00:56:00,201 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 00:56:00,201 INFO  L471      AbstractCegarLoop]: Abstraction has 93 states and 139 transitions.
[2024-11-03 00:56:00,201 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27)
[2024-11-03 00:56:00,201 INFO  L276                IsEmpty]: Start isEmpty. Operand 93 states and 139 transitions.
[2024-11-03 00:56:00,206 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 180
[2024-11-03 00:56:00,207 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 00:56:00,207 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 00:56:00,213 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0
[2024-11-03 00:56:00,407 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 00:56:00,408 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 00:56:00,409 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 00:56:00,409 INFO  L85        PathProgramCache]: Analyzing trace with hash -1776204910, now seen corresponding path program 1 times
[2024-11-03 00:56:00,409 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 00:56:00,409 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1071542473]
[2024-11-03 00:56:00,410 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 00:56:00,410 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 00:56:00,410 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 00:56:00,411 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 00:56:00,412 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 00:56:01,676 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 00:56:01,697 INFO  L255         TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-11-03 00:56:01,704 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 00:56:04,557 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 84 proven. 216 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked.
[2024-11-03 00:56:04,558 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 00:56:08,254 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 3 proven. 150 refuted. 0 times theorem prover too weak. 1251 trivial. 0 not checked.
[2024-11-03 00:56:08,254 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 00:56:08,255 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1071542473]
[2024-11-03 00:56:08,255 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1071542473] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 00:56:08,255 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 00:56:08,257 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 19
[2024-11-03 00:56:08,257 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120963593]
[2024-11-03 00:56:08,257 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 00:56:08,258 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 19 states
[2024-11-03 00:56:08,258 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 00:56:08,259 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2024-11-03 00:56:08,259 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342
[2024-11-03 00:56:08,260 INFO  L87              Difference]: Start difference. First operand 93 states and 139 transitions. Second operand  has 19 states, 19 states have (on average 4.2631578947368425) internal successors, (81), 18 states have internal predecessors, (81), 6 states have call successors, (53), 4 states have call predecessors, (53), 7 states have return successors, (54), 5 states have call predecessors, (54), 6 states have call successors, (54)
[2024-11-03 00:56:13,511 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.66s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 00:56:13,781 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 00:56:13,781 INFO  L93              Difference]: Finished difference Result 197 states and 286 transitions.
[2024-11-03 00:56:13,782 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. 
[2024-11-03 00:56:13,783 INFO  L78                 Accepts]: Start accepts. Automaton has  has 19 states, 19 states have (on average 4.2631578947368425) internal successors, (81), 18 states have internal predecessors, (81), 6 states have call successors, (53), 4 states have call predecessors, (53), 7 states have return successors, (54), 5 states have call predecessors, (54), 6 states have call successors, (54) Word has length 179
[2024-11-03 00:56:13,783 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 00:56:13,785 INFO  L225             Difference]: With dead ends: 197
[2024-11-03 00:56:13,785 INFO  L226             Difference]: Without dead ends: 107
[2024-11-03 00:56:13,786 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 337 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=188, Invalid=412, Unknown=0, NotChecked=0, Total=600
[2024-11-03 00:56:13,787 INFO  L432           NwaCegarLoop]: 83 mSDtfsCounter, 102 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time
[2024-11-03 00:56:13,788 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 395 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time]
[2024-11-03 00:56:13,789 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 107 states.
[2024-11-03 00:56:13,803 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105.
[2024-11-03 00:56:13,804 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 105 states, 73 states have (on average 1.273972602739726) internal successors, (93), 73 states have internal predecessors, (93), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27)
[2024-11-03 00:56:13,805 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 147 transitions.
[2024-11-03 00:56:13,805 INFO  L78                 Accepts]: Start accepts. Automaton has 105 states and 147 transitions. Word has length 179
[2024-11-03 00:56:13,806 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 00:56:13,806 INFO  L471      AbstractCegarLoop]: Abstraction has 105 states and 147 transitions.
[2024-11-03 00:56:13,806 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 19 states, 19 states have (on average 4.2631578947368425) internal successors, (81), 18 states have internal predecessors, (81), 6 states have call successors, (53), 4 states have call predecessors, (53), 7 states have return successors, (54), 5 states have call predecessors, (54), 6 states have call successors, (54)
[2024-11-03 00:56:13,806 INFO  L276                IsEmpty]: Start isEmpty. Operand 105 states and 147 transitions.
[2024-11-03 00:56:13,810 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 180
[2024-11-03 00:56:13,810 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 00:56:13,810 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 00:56:13,830 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0
[2024-11-03 00:56:14,010 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 00:56:14,012 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 00:56:14,012 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 00:56:14,012 INFO  L85        PathProgramCache]: Analyzing trace with hash -1910218416, now seen corresponding path program 1 times
[2024-11-03 00:56:14,013 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 00:56:14,013 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1146876847]
[2024-11-03 00:56:14,013 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 00:56:14,013 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 00:56:14,013 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 00:56:14,016 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 00:56:14,017 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 00:56:15,215 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 00:56:15,231 INFO  L255         TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-03 00:56:15,235 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 00:56:15,561 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 728 proven. 39 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked.
[2024-11-03 00:56:15,562 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 00:56:16,246 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 39 proven. 39 refuted. 0 times theorem prover too weak. 1326 trivial. 0 not checked.
[2024-11-03 00:56:16,247 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 00:56:16,247 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1146876847]
[2024-11-03 00:56:16,247 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1146876847] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 00:56:16,247 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 00:56:16,247 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12
[2024-11-03 00:56:16,247 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545155515]
[2024-11-03 00:56:16,248 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 00:56:16,248 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-03 00:56:16,248 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 00:56:16,249 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-03 00:56:16,250 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132
[2024-11-03 00:56:16,251 INFO  L87              Difference]: Start difference. First operand 105 states and 147 transitions. Second operand  has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 12 states have internal predecessors, (79), 3 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41)
[2024-11-03 00:56:20,325 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 00:56:21,218 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 00:56:21,218 INFO  L93              Difference]: Finished difference Result 269 states and 368 transitions.
[2024-11-03 00:56:21,220 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2024-11-03 00:56:21,221 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 12 states have internal predecessors, (79), 3 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 179
[2024-11-03 00:56:21,221 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 00:56:21,223 INFO  L225             Difference]: With dead ends: 269
[2024-11-03 00:56:21,223 INFO  L226             Difference]: Without dead ends: 167
[2024-11-03 00:56:21,224 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342
[2024-11-03 00:56:21,225 INFO  L432           NwaCegarLoop]: 119 mSDtfsCounter, 221 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time
[2024-11-03 00:56:21,225 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 521 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time]
[2024-11-03 00:56:21,226 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 167 states.
[2024-11-03 00:56:21,243 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 160.
[2024-11-03 00:56:21,244 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 160 states, 110 states have (on average 1.2363636363636363) internal successors, (136), 111 states have internal predecessors, (136), 40 states have call successors, (40), 9 states have call predecessors, (40), 9 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40)
[2024-11-03 00:56:21,245 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 216 transitions.
[2024-11-03 00:56:21,245 INFO  L78                 Accepts]: Start accepts. Automaton has 160 states and 216 transitions. Word has length 179
[2024-11-03 00:56:21,246 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 00:56:21,249 INFO  L471      AbstractCegarLoop]: Abstraction has 160 states and 216 transitions.
[2024-11-03 00:56:21,250 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 12 states have internal predecessors, (79), 3 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41)
[2024-11-03 00:56:21,250 INFO  L276                IsEmpty]: Start isEmpty. Operand 160 states and 216 transitions.
[2024-11-03 00:56:21,252 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 180
[2024-11-03 00:56:21,252 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 00:56:21,252 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 00:56:21,274 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0
[2024-11-03 00:56:21,458 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 00:56:21,459 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 00:56:21,459 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 00:56:21,460 INFO  L85        PathProgramCache]: Analyzing trace with hash -1209153838, now seen corresponding path program 1 times
[2024-11-03 00:56:21,460 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 00:56:21,460 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1692853128]
[2024-11-03 00:56:21,460 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 00:56:21,460 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 00:56:21,461 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 00:56:21,462 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 00:56:21,463 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process
[2024-11-03 00:56:23,976 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 00:56:23,995 INFO  L255         TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 71 conjuncts are in the unsatisfiable core
[2024-11-03 00:56:24,004 INFO  L278         TraceCheckSpWp]: Computing forward predicates...