/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_amount250_file-54.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 01:17:28,605 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 01:17:28,688 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 01:17:28,695 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 01:17:28,696 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 01:17:28,724 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 01:17:28,724 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 01:17:28,725 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 01:17:28,725 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 01:17:28,725 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 01:17:28,726 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 01:17:28,726 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 01:17:28,727 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 01:17:28,727 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 01:17:28,728 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 01:17:28,729 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 01:17:28,730 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 01:17:28,730 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 01:17:28,731 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 01:17:28,731 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 01:17:28,731 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 01:17:28,735 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 01:17:28,736 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 01:17:28,736 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 01:17:28,736 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 01:17:28,736 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 01:17:28,737 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 01:17:28,737 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 01:17:28,737 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 01:17:28,737 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 01:17:28,737 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 01:17:28,738 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 01:17:28,738 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 01:17:28,738 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 01:17:28,738 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:17:28,739 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 01:17:28,740 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 01:17:28,740 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 01:17:28,741 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 01:17:28,741 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 01:17:28,741 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 01:17:28,741 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 01:17:28,741 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 01:17:28,742 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 01:17:28,742 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt
[2024-11-03 01:17:28,981 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 01:17:29,008 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 01:17:29,011 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 01:17:29,012 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 01:17:29,013 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 01:17:29,014 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-54.i
[2024-11-03 01:17:30,493 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 01:17:30,777 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 01:17:30,778 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-54.i
[2024-11-03 01:17:30,792 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/544076f0f/35cf730028fb4b0b9afef6feb83868cb/FLAGbeb5ef619
[2024-11-03 01:17:31,086 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/544076f0f/35cf730028fb4b0b9afef6feb83868cb
[2024-11-03 01:17:31,088 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 01:17:31,089 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 01:17:31,092 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 01:17:31,092 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 01:17:31,097 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 01:17:31,098 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:17:31" (1/1) ...
[2024-11-03 01:17:31,100 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25f78add and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:17:31, skipping insertion in model container
[2024-11-03 01:17:31,100 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:17:31" (1/1) ...
[2024-11-03 01:17:31,157 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 01:17:31,349 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-54.i[916,929]
[2024-11-03 01:17:31,504 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:17:31,521 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 01:17:31,535 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-54.i[916,929]
[2024-11-03 01:17:31,658 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:17:31,681 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 01:17:31,682 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:17:31 WrapperNode
[2024-11-03 01:17:31,682 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 01:17:31,683 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 01:17:31,684 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 01:17:31,684 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 01:17:31,691 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:17:31" (1/1) ...
[2024-11-03 01:17:31,721 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:17:31" (1/1) ...
[2024-11-03 01:17:31,768 INFO  L138                Inliner]: procedures = 27, calls = 79, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 384
[2024-11-03 01:17:31,768 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 01:17:31,769 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 01:17:31,769 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 01:17:31,769 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 01:17:31,788 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:17:31" (1/1) ...
[2024-11-03 01:17:31,788 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:17:31" (1/1) ...
[2024-11-03 01:17:31,802 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:17:31" (1/1) ...
[2024-11-03 01:17:31,834 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 01:17:31,834 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:17:31" (1/1) ...
[2024-11-03 01:17:31,835 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:17:31" (1/1) ...
[2024-11-03 01:17:31,872 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:17:31" (1/1) ...
[2024-11-03 01:17:31,886 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:17:31" (1/1) ...
[2024-11-03 01:17:31,893 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:17:31" (1/1) ...
[2024-11-03 01:17:31,897 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:17:31" (1/1) ...
[2024-11-03 01:17:31,906 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 01:17:31,911 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 01:17:31,911 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 01:17:31,911 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 01:17:31,912 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:17:31" (1/1) ...
[2024-11-03 01:17:31,923 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:17:31,938 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 01:17:31,953 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 01:17:31,955 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 01:17:31,976 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 01:17:31,976 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 01:17:31,976 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 01:17:31,976 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 01:17:31,976 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 01:17:31,976 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 01:17:32,079 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 01:17:32,081 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 01:17:59,750 INFO  L?                        ?]: Removed 36 outVars from TransFormulas that were not future-live.
[2024-11-03 01:17:59,750 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 01:17:59,771 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 01:17:59,772 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 01:17:59,772 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:17:59 BoogieIcfgContainer
[2024-11-03 01:17:59,772 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 01:17:59,775 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 01:17:59,775 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 01:17:59,778 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 01:17:59,779 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:17:31" (1/3) ...
[2024-11-03 01:17:59,779 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b20cafa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:17:59, skipping insertion in model container
[2024-11-03 01:17:59,780 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:17:31" (2/3) ...
[2024-11-03 01:17:59,780 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b20cafa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:17:59, skipping insertion in model container
[2024-11-03 01:17:59,780 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:17:59" (3/3) ...
[2024-11-03 01:17:59,783 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-54.i
[2024-11-03 01:17:59,800 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 01:17:59,800 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 01:17:59,891 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 01:17:59,898 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;@32068281, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 01:17:59,899 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 01:17:59,906 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 171 states, 102 states have (on average 1.4803921568627452) internal successors, (151), 103 states have internal predecessors, (151), 66 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66)
[2024-11-03 01:17:59,940 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 401
[2024-11-03 01:17:59,940 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:17:59,941 INFO  L215           NwaCegarLoop]: trace histogram [66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:59,942 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:17:59,948 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:17:59,948 INFO  L85        PathProgramCache]: Analyzing trace with hash -847748928, now seen corresponding path program 1 times
[2024-11-03 01:17:59,957 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:17:59,957 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [527608094]
[2024-11-03 01:17:59,957 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:17:59,961 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:17:59,961 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:17:59,964 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 01:17:59,966 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 01:18:01,036 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:18:01,077 INFO  L255         TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 01:18:01,095 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:18:01,204 INFO  L134       CoverageAnalysis]: Checked inductivity of 8580 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 8450 trivial. 0 not checked.
[2024-11-03 01:18:01,204 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:18:08,513 INFO  L134       CoverageAnalysis]: Checked inductivity of 8580 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 8450 trivial. 0 not checked.
[2024-11-03 01:18:08,514 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:18:08,515 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [527608094]
[2024-11-03 01:18:08,515 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [527608094] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:18:08,515 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:18:08,516 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 01:18:08,517 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884695652]
[2024-11-03 01:18:08,517 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:18:08,526 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 01:18:08,527 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:18:08,559 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 01:18:08,560 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 01:18:08,563 INFO  L87              Difference]: Start difference. First operand  has 171 states, 102 states have (on average 1.4803921568627452) internal successors, (151), 103 states have internal predecessors, (151), 66 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) Second operand  has 2 states, 2 states have (on average 37.5) internal successors, (75), 2 states have internal predecessors, (75), 1 states have call successors, (66), 1 states have call predecessors, (66), 2 states have return successors, (66), 2 states have call predecessors, (66), 1 states have call successors, (66)
[2024-11-03 01:18:08,612 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:18:08,612 INFO  L93              Difference]: Finished difference Result 335 states and 626 transitions.
[2024-11-03 01:18:08,613 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 01:18:08,614 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 37.5) internal successors, (75), 2 states have internal predecessors, (75), 1 states have call successors, (66), 1 states have call predecessors, (66), 2 states have return successors, (66), 2 states have call predecessors, (66), 1 states have call successors, (66) Word has length 400
[2024-11-03 01:18:08,615 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:18:08,624 INFO  L225             Difference]: With dead ends: 335
[2024-11-03 01:18:08,624 INFO  L226             Difference]: Without dead ends: 167
[2024-11-03 01:18:08,630 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 798 GetRequests, 798 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 01:18:08,636 INFO  L432           NwaCegarLoop]: 275 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, 275 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 01:18:08,638 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 01:18:08,655 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 167 states.
[2024-11-03 01:18:08,709 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167.
[2024-11-03 01:18:08,755 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 167 states, 99 states have (on average 1.4444444444444444) internal successors, (143), 99 states have internal predecessors, (143), 66 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66)
[2024-11-03 01:18:08,763 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 275 transitions.
[2024-11-03 01:18:08,767 INFO  L78                 Accepts]: Start accepts. Automaton has 167 states and 275 transitions. Word has length 400
[2024-11-03 01:18:08,767 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:18:08,767 INFO  L471      AbstractCegarLoop]: Abstraction has 167 states and 275 transitions.
[2024-11-03 01:18:08,768 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 37.5) internal successors, (75), 2 states have internal predecessors, (75), 1 states have call successors, (66), 1 states have call predecessors, (66), 2 states have return successors, (66), 2 states have call predecessors, (66), 1 states have call successors, (66)
[2024-11-03 01:18:08,770 INFO  L276                IsEmpty]: Start isEmpty. Operand 167 states and 275 transitions.
[2024-11-03 01:18:08,778 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 401
[2024-11-03 01:18:08,784 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:18:08,785 INFO  L215           NwaCegarLoop]: trace histogram [66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:18:08,794 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 01:18:08,985 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 01:18:08,986 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:18:08,987 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:18:08,988 INFO  L85        PathProgramCache]: Analyzing trace with hash -1395794288, now seen corresponding path program 1 times
[2024-11-03 01:18:08,988 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:18:08,988 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1231171596]
[2024-11-03 01:18:08,988 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:18:08,989 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:18:08,989 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:18:08,991 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 01:18:08,993 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 01:18:09,796 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:18:09,833 INFO  L255         TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 01:18:09,841 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:18:11,381 INFO  L134       CoverageAnalysis]: Checked inductivity of 8580 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked.
[2024-11-03 01:18:11,381 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:18:19,689 INFO  L134       CoverageAnalysis]: Checked inductivity of 8580 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked.
[2024-11-03 01:18:19,690 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:18:19,691 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1231171596]
[2024-11-03 01:18:19,693 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1231171596] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:18:19,693 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:18:19,693 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-03 01:18:19,694 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020487148]
[2024-11-03 01:18:19,694 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:18:19,696 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 01:18:19,696 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:18:19,700 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 01:18:19,700 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:18:19,700 INFO  L87              Difference]: Start difference. First operand 167 states and 275 transitions. Second operand  has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66)
[2024-11-03 01:18:24,877 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.70s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:18:28,887 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:18:28,894 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:18:28,894 INFO  L93              Difference]: Finished difference Result 403 states and 664 transitions.
[2024-11-03 01:18:29,182 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 01:18:29,183 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) Word has length 400
[2024-11-03 01:18:29,185 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:18:29,189 INFO  L225             Difference]: With dead ends: 403
[2024-11-03 01:18:29,189 INFO  L226             Difference]: Without dead ends: 239
[2024-11-03 01:18:29,192 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 798 GetRequests, 797 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:18:29,193 INFO  L432           NwaCegarLoop]: 276 mSDtfsCounter, 101 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time
[2024-11-03 01:18:29,193 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 526 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 12 Invalid, 2 Unknown, 0 Unchecked, 9.1s Time]
[2024-11-03 01:18:29,194 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 239 states.
[2024-11-03 01:18:29,241 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 236.
[2024-11-03 01:18:29,242 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 236 states, 153 states have (on average 1.477124183006536) internal successors, (226), 154 states have internal predecessors, (226), 80 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (80), 79 states have call predecessors, (80), 80 states have call successors, (80)
[2024-11-03 01:18:29,247 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 386 transitions.
[2024-11-03 01:18:29,248 INFO  L78                 Accepts]: Start accepts. Automaton has 236 states and 386 transitions. Word has length 400
[2024-11-03 01:18:29,249 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:18:29,249 INFO  L471      AbstractCegarLoop]: Abstraction has 236 states and 386 transitions.
[2024-11-03 01:18:29,250 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66)
[2024-11-03 01:18:29,250 INFO  L276                IsEmpty]: Start isEmpty. Operand 236 states and 386 transitions.
[2024-11-03 01:18:29,259 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 402
[2024-11-03 01:18:29,260 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:18:29,261 INFO  L215           NwaCegarLoop]: trace histogram [66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:18:29,271 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 01:18:29,461 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 01:18:29,462 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:18:29,463 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:18:29,463 INFO  L85        PathProgramCache]: Analyzing trace with hash 1963166620, now seen corresponding path program 1 times
[2024-11-03 01:18:29,463 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:18:29,463 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [884351394]
[2024-11-03 01:18:29,463 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:18:29,464 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:18:29,464 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:18:29,466 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 01:18:29,468 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 01:18:34,217 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:18:34,256 INFO  L255         TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-03 01:18:34,265 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:18:58,246 INFO  L134       CoverageAnalysis]: Checked inductivity of 8580 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked.
[2024-11-03 01:18:58,247 INFO  L311         TraceCheckSpWp]: Computing backward predicates...