java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AbstractInterpretationInline.xml -s ../../../trunk/examples/settings/ai/array-bench/reach_32bit_array_oct.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/verisec_NetBSD-libc__loop.i_2.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-e1a14da [2018-12-24 15:29:05,048 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-24 15:29:05,050 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-24 15:29:05,069 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-24 15:29:05,070 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-24 15:29:05,071 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-24 15:29:05,073 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-24 15:29:05,076 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-24 15:29:05,080 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-24 15:29:05,089 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-24 15:29:05,090 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-24 15:29:05,091 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-24 15:29:05,092 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-24 15:29:05,093 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-24 15:29:05,097 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-24 15:29:05,098 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-24 15:29:05,099 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-24 15:29:05,105 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-24 15:29:05,110 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-24 15:29:05,114 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-24 15:29:05,115 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-24 15:29:05,116 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-24 15:29:05,119 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-24 15:29:05,119 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-24 15:29:05,119 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-24 15:29:05,120 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-24 15:29:05,121 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-24 15:29:05,122 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-24 15:29:05,123 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-24 15:29:05,125 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-24 15:29:05,125 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-24 15:29:05,126 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-24 15:29:05,126 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-24 15:29:05,126 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-24 15:29:05,128 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-24 15:29:05,129 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-24 15:29:05,129 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_array_oct.epf [2018-12-24 15:29:05,150 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-24 15:29:05,150 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-24 15:29:05,151 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-24 15:29:05,151 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-24 15:29:05,151 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-24 15:29:05,152 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-24 15:29:05,152 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2018-12-24 15:29:05,152 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-24 15:29:05,152 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-24 15:29:05,153 INFO L133 SettingsManager]: * Underlying domain=OctagonDomain [2018-12-24 15:29:05,153 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2018-12-24 15:29:05,153 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-24 15:29:05,153 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-24 15:29:05,154 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-24 15:29:05,154 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-24 15:29:05,154 INFO L133 SettingsManager]: * Use SBE=true [2018-12-24 15:29:05,155 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-24 15:29:05,155 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-24 15:29:05,155 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-24 15:29:05,155 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-24 15:29:05,155 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-24 15:29:05,156 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-24 15:29:05,156 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-24 15:29:05,156 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-24 15:29:05,156 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-24 15:29:05,156 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-24 15:29:05,157 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-24 15:29:05,157 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-24 15:29:05,157 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-24 15:29:05,157 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-24 15:29:05,157 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-24 15:29:05,158 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-24 15:29:05,158 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-24 15:29:05,158 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-24 15:29:05,158 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-24 15:29:05,159 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-24 15:29:05,159 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-24 15:29:05,159 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-24 15:29:05,159 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-24 15:29:05,195 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-24 15:29:05,212 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-24 15:29:05,218 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-24 15:29:05,220 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-24 15:29:05,221 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-24 15:29:05,221 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/verisec_NetBSD-libc__loop.i_2.bpl [2018-12-24 15:29:05,222 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/verisec_NetBSD-libc__loop.i_2.bpl' [2018-12-24 15:29:05,288 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-24 15:29:05,290 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-24 15:29:05,291 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-24 15:29:05,291 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-24 15:29:05,291 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-24 15:29:05,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "verisec_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 03:29:05" (1/1) ... [2018-12-24 15:29:05,327 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "verisec_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 03:29:05" (1/1) ... [2018-12-24 15:29:05,338 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-24 15:29:05,339 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-24 15:29:05,339 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-24 15:29:05,339 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-24 15:29:05,353 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "verisec_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 03:29:05" (1/1) ... [2018-12-24 15:29:05,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "verisec_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 03:29:05" (1/1) ... [2018-12-24 15:29:05,355 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "verisec_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 03:29:05" (1/1) ... [2018-12-24 15:29:05,357 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "verisec_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 03:29:05" (1/1) ... [2018-12-24 15:29:05,362 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "verisec_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 03:29:05" (1/1) ... [2018-12-24 15:29:05,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "verisec_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 03:29:05" (1/1) ... [2018-12-24 15:29:05,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "verisec_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 03:29:05" (1/1) ... [2018-12-24 15:29:05,370 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-24 15:29:05,371 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-24 15:29:05,371 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-24 15:29:05,371 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-24 15:29:05,375 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "verisec_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 03:29:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-24 15:29:05,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-24 15:29:05,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-24 15:29:05,708 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-24 15:29:05,708 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-24 15:29:05,708 INFO L202 PluginConnector]: Adding new model verisec_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 03:29:05 BoogieIcfgContainer [2018-12-24 15:29:05,709 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-24 15:29:05,710 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-12-24 15:29:05,710 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-12-24 15:29:05,710 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-12-24 15:29:05,711 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "verisec_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 03:29:05" (1/1) ... [2018-12-24 15:29:05,767 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-24 15:31:37,987 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-24 15:31:38,005 INFO L272 AbstractInterpreter]: Visited 6 different actions 42 times. Merged at 4 different actions 29 times. Widened at 3 different actions 12 times. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2018-12-24 15:31:38,008 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-12-24 15:31:38,009 INFO L168 Benchmark]: Toolchain (without parser) took 152720.43 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 274.7 MB). Free memory was 1.5 GB in the beginning and 998.9 MB in the end (delta: 471.0 MB). Peak memory consumption was 875.1 MB. Max. memory is 7.1 GB. [2018-12-24 15:31:38,012 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-24 15:31:38,013 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.85 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-24 15:31:38,013 INFO L168 Benchmark]: Boogie Preprocessor took 31.51 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-24 15:31:38,014 INFO L168 Benchmark]: RCFGBuilder took 338.14 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-12-24 15:31:38,015 INFO L168 Benchmark]: Abstract Interpretation took 152298.77 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 274.7 MB). Free memory was 1.4 GB in the beginning and 998.9 MB in the end (delta: 449.8 MB). Peak memory consumption was 853.9 MB. Max. memory is 7.1 GB. [2018-12-24 15:31:38,021 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.85 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.51 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 338.14 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 152298.77 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 274.7 MB). Free memory was 1.4 GB in the beginning and 998.9 MB in the end (delta: 449.8 MB). Peak memory consumption was 853.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 82]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L33] #NULL.base, #NULL.offset := 0, 0; [L34] #valid := #valid[0 := 0]; [L35] ~tmp.base, ~tmp.offset := 0, 0; [L36] havoc main_#res; [L37] havoc main_#t~ret2, main_~#pathbuf~6.base, main_~#pathbuf~6.offset, main_~bound~6.base, main_~bound~6.offset; [L38] #Ultimate.alloc_old_#length, #Ultimate.alloc_old_#valid := #length, #valid; [L39] #Ultimate.alloc_~size := 8; [L40] havoc #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset; [L41] havoc #valid, #length; [L42] assume #Ultimate.alloc_old_#valid[#Ultimate.alloc_#res.base] == 0; [L43] assume #valid == #Ultimate.alloc_old_#valid[#Ultimate.alloc_#res.base := 1]; [L44] assume #Ultimate.alloc_#res.offset == 0; [L45] assume #Ultimate.alloc_#res.base != 0; [L46] assume #length == #Ultimate.alloc_old_#length[#Ultimate.alloc_#res.base := #Ultimate.alloc_~size]; [L47] main_~#pathbuf~6.base, main_~#pathbuf~6.offset := #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset; [L48] main_~bound~6.base, main_~bound~6.offset := main_~#pathbuf~6.base, main_~#pathbuf~6.offset + 32 - 4; [L49] ~tmp.base, ~tmp.offset := main_~#pathbuf~6.base, main_~#pathbuf~6.offset + 8 - 4; [L50] glob2_#in~pathbuf.base, glob2_#in~pathbuf.offset, glob2_#in~pathlim.base, glob2_#in~pathlim.offset := main_~#pathbuf~6.base, main_~#pathbuf~6.offset, main_~bound~6.base, main_~bound~6.offset; [L51] havoc glob2_#res; [L52] havoc glob2_#t~post0.base, glob2_#t~post0.offset, glob2_~pathbuf.base, glob2_~pathbuf.offset, glob2_~pathlim.base, glob2_~pathlim.offset, glob2_~p~4.base, glob2_~p~4.offset; [L53] glob2_~pathbuf.base, glob2_~pathbuf.offset := glob2_#in~pathbuf.base, glob2_#in~pathbuf.offset; [L54] glob2_~pathlim.base, glob2_~pathlim.offset := glob2_#in~pathlim.base, glob2_#in~pathlim.offset; [L55] havoc glob2_~p~4.base, glob2_~p~4.offset; [L56] glob2_~p~4.base, glob2_~p~4.offset := glob2_~pathbuf.base, glob2_~pathbuf.offset; [L60] assume !!(glob2_~p~4.base == glob2_~pathlim.base && glob2_~p~4.offset <= glob2_~pathlim.offset); [L61] __VERIFIER_assert_#in~cond := (if glob2_~p~4.base == ~tmp.base && glob2_~p~4.offset <= ~tmp.offset then 1 else 0); [L62] havoc __VERIFIER_assert_~cond; [L63] __VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; [L78] assume __VERIFIER_assert_~cond == 0; [L79] assume !false; [L82] assert false; RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...