java -ea -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_compound_oct_cong.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/verisec_NetBSD-libc__loop.i_2.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fa1c628-m [2019-01-31 15:26:45,567 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-31 15:26:45,569 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-31 15:26:45,581 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-31 15:26:45,582 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-31 15:26:45,583 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-31 15:26:45,585 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-31 15:26:45,587 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-31 15:26:45,589 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-31 15:26:45,590 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-31 15:26:45,591 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2019-01-31 15:26:45,633 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_compound_oct_cong.epf [2019-01-31 15:26:45,655 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-31 15:26:45,656 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-31 15:26:45,656 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-01-31 15:26:45,657 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2019-01-31 15:26:45,657 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-01-31 15:26:45,657 INFO L133 SettingsManager]: * User list type=DISABLED [2019-01-31 15:26:45,657 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-01-31 15:26:45,658 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-01-31 15:26:45,658 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-01-31 15:26:45,658 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2019-01-31 15:26:45,658 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-01-31 15:26:45,658 INFO L133 SettingsManager]: * Interval Domain=false [2019-01-31 15:26:45,659 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-31 15:26:45,660 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-31 15:26:45,660 INFO L133 SettingsManager]: * Use SBE=true [2019-01-31 15:26:45,660 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-31 15:26:45,660 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-31 15:26:45,660 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-31 15:26:45,661 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-31 15:26:45,661 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-31 15:26:45,661 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-31 15:26:45,661 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-31 15:26:45,661 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-31 15:26:45,661 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-31 15:26:45,662 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-31 15:26:45,662 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-31 15:26:45,663 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-31 15:26:45,663 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-31 15:26:45,663 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-31 15:26:45,663 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:8092 -smt2 -in -t:10000 [2019-01-31 15:26:45,664 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-31 15:26:45,664 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-31 15:26:45,664 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-31 15:26:45,664 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-01-31 15:26:45,664 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-31 15:26:45,664 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:8092 -smt2 -in [2019-01-31 15:26:45,664 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-01-31 15:26:45,665 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-01-31 15:26:45,697 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-31 15:26:45,710 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-31 15:26:45,713 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-31 15:26:45,715 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-01-31 15:26:45,715 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2019-01-31 15:26:45,716 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/verisec_NetBSD-libc__loop.i_2.bpl [2019-01-31 15:26:45,716 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/verisec_NetBSD-libc__loop.i_2.bpl' [2019-01-31 15:26:45,765 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-31 15:26:45,767 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-01-31 15:26:45,768 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-31 15:26:45,768 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-31 15:26:45,768 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-31 15:26:45,786 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 31.01 03:26:45" (1/1) ... [2019-01-31 15:26:45,798 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 31.01 03:26:45" (1/1) ... [2019-01-31 15:26:45,807 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-31 15:26:45,808 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-31 15:26:45,808 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-31 15:26:45,808 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-31 15:26:45,820 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 31.01 03:26:45" (1/1) ... [2019-01-31 15:26:45,820 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 31.01 03:26:45" (1/1) ... [2019-01-31 15:26:45,822 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 31.01 03:26:45" (1/1) ... [2019-01-31 15:26:45,822 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 31.01 03:26:45" (1/1) ... [2019-01-31 15:26:45,834 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 31.01 03:26:45" (1/1) ... [2019-01-31 15:26:45,837 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 31.01 03:26:45" (1/1) ... [2019-01-31 15:26:45,839 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 31.01 03:26:45" (1/1) ... [2019-01-31 15:26:45,840 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-31 15:26:45,841 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-31 15:26:45,841 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-31 15:26:45,841 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-31 15:26:45,843 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 31.01 03:26:45" (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:8092 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:8092 -smt2 -in -t:10000 [2019-01-31 15:26:45,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-31 15:26:45,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-31 15:26:46,373 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-31 15:26:46,374 INFO L286 CfgBuilder]: Removed 1 assue(true) statements. [2019-01-31 15:26:46,377 INFO L202 PluginConnector]: Adding new model verisec_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 03:26:46 BoogieIcfgContainer [2019-01-31 15:26:46,377 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-31 15:26:46,378 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-01-31 15:26:46,378 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-01-31 15:26:46,378 INFO L276 PluginConnector]: Abstract Interpretation initialized [2019-01-31 15:26:46,379 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 31.01 03:26:46" (1/1) ... [2019-01-31 15:26:46,438 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2019-01-31 15:26:49,378 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-01-31 15:26:49,400 INFO L272 AbstractInterpreter]: Visited 6 different actions 38 times. Merged at 4 different actions 25 times. Widened at 3 different actions 9 times. Performed 283 root evaluator evaluations with a maximum evaluation depth of 5. Performed 283 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2019-01-31 15:26:49,403 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-01-31 15:26:49,404 INFO L168 Benchmark]: Toolchain (without parser) took 3638.87 ms. Allocated memory was 140.0 MB in the beginning and 300.4 MB in the end (delta: 160.4 MB). Free memory was 107.0 MB in the beginning and 90.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 176.5 MB. Max. memory is 7.1 GB. [2019-01-31 15:26:49,407 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory is still 108.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-01-31 15:26:49,408 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.04 ms. Allocated memory is still 140.0 MB. Free memory was 107.0 MB in the beginning and 105.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-01-31 15:26:49,410 INFO L168 Benchmark]: Boogie Preprocessor took 32.69 ms. Allocated memory is still 140.0 MB. Free memory was 105.4 MB in the beginning and 104.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-01-31 15:26:49,411 INFO L168 Benchmark]: RCFGBuilder took 535.90 ms. Allocated memory is still 140.0 MB. Free memory was 104.1 MB in the beginning and 90.4 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. [2019-01-31 15:26:49,412 INFO L168 Benchmark]: Abstract Interpretation took 3025.35 ms. Allocated memory was 140.0 MB in the beginning and 300.4 MB in the end (delta: 160.4 MB). Free memory was 90.4 MB in the beginning and 90.9 MB in the end (delta: -566.4 kB). Peak memory consumption was 159.9 MB. Max. memory is 7.1 GB. [2019-01-31 15:26:49,418 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - GenericResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory is still 108.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 40.04 ms. Allocated memory is still 140.0 MB. Free memory was 107.0 MB in the beginning and 105.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 32.69 ms. Allocated memory is still 140.0 MB. Free memory was 105.4 MB in the beginning and 104.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 535.90 ms. Allocated memory is still 140.0 MB. Free memory was 104.1 MB in the beginning and 90.4 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 3025.35 ms. Allocated memory was 140.0 MB in the beginning and 300.4 MB in the end (delta: 160.4 MB). Free memory was 90.4 MB in the beginning and 90.9 MB in the end (delta: -566.4 kB). Peak memory consumption was 159.9 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; [L68] assume !(__VERIFIER_assert_~cond == 0); [L69] write~int_old_#memory_int := #memory_int; [L70] write~int_#value, write~int_#ptr.base, write~int_#ptr.offset, write~int_#sizeOfWrittenType := 1, glob2_~p~4.base, glob2_~p~4.offset, 4; [L71] havoc #memory_int; [L72] assume #memory_int == write~int_old_#memory_int[write~int_#ptr.base,write~int_#ptr.offset := write~int_#value]; [L73] glob2_#t~post0.base, glob2_#t~post0.offset := glob2_~p~4.base, glob2_~p~4.offset; [L74] glob2_~p~4.base, glob2_~p~4.offset := glob2_#t~post0.base, glob2_#t~post0.offset + 4; [L75] havoc glob2_#t~post0.base, glob2_#t~post0.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; [L68] assume !(__VERIFIER_assert_~cond == 0); [L69] write~int_old_#memory_int := #memory_int; [L70] write~int_#value, write~int_#ptr.base, write~int_#ptr.offset, write~int_#sizeOfWrittenType := 1, glob2_~p~4.base, glob2_~p~4.offset, 4; [L71] havoc #memory_int; [L72] assume #memory_int == write~int_old_#memory_int[write~int_#ptr.base,write~int_#ptr.offset := write~int_#value]; [L73] glob2_#t~post0.base, glob2_#t~post0.offset := glob2_~p~4.base, glob2_~p~4.offset; [L74] glob2_~p~4.base, glob2_~p~4.offset := glob2_#t~post0.base, glob2_#t~post0.offset + 4; [L75] havoc glob2_#t~post0.base, glob2_#t~post0.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...