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_compound_oct_cong.epf -i ../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/gr2006.c.i_4.bplTransformedIcfg_BEv2_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c78c21b [2018-12-03 20:19:55,196 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 20:19:55,198 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 20:19:55,211 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 20:19:55,211 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 20:19:55,213 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 20:19:55,214 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 20:19:55,216 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 20:19:55,217 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 20:19:55,218 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 20:19:55,219 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 20:19:55,219 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 20:19:55,220 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 20:19:55,221 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 20:19:55,222 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 20:19:55,223 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 20:19:55,224 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 20:19:55,226 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 20:19:55,228 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 20:19:55,230 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 20:19:55,231 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 20:19:55,232 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 20:19:55,235 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 20:19:55,235 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 20:19:55,235 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 20:19:55,236 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 20:19:55,237 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 20:19:55,238 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 20:19:55,239 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 20:19:55,240 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 20:19:55,240 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 20:19:55,241 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 20:19:55,241 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 20:19:55,241 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 20:19:55,242 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 20:19:55,243 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 20:19:55,243 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_array_compound_oct_cong.epf [2018-12-03 20:19:55,256 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 20:19:55,256 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 20:19:55,257 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-03 20:19:55,258 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-03 20:19:55,260 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 20:19:55,260 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 20:19:55,260 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 20:19:55,260 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 20:19:55,261 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 20:19:55,261 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2018-12-03 20:19:55,261 INFO L133 SettingsManager]: * Log string format=TERM [2018-12-03 20:19:55,261 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 20:19:55,262 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 20:19:55,262 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-03 20:19:55,263 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-03 20:19:55,263 INFO L133 SettingsManager]: * Use SBE=true [2018-12-03 20:19:55,264 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 20:19:55,264 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 20:19:55,264 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 20:19:55,264 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 20:19:55,264 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 20:19:55,265 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 20:19:55,265 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 20:19:55,265 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 20:19:55,265 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 20:19:55,265 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 20:19:55,266 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 20:19:55,268 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 20:19:55,268 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 20:19:55,268 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 20:19:55,268 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 20:19:55,269 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 20:19:55,269 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 20:19:55,269 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 20:19:55,269 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 20:19:55,269 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 20:19:55,270 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 20:19:55,270 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 20:19:55,270 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-03 20:19:55,327 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 20:19:55,340 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 20:19:55,348 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 20:19:55,350 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-03 20:19:55,351 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-03 20:19:55,352 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/gr2006.c.i_4.bplTransformedIcfg_BEv2_3.bpl [2018-12-03 20:19:55,352 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/gr2006.c.i_4.bplTransformedIcfg_BEv2_3.bpl' [2018-12-03 20:19:55,401 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 20:19:55,403 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-03 20:19:55,404 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 20:19:55,404 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 20:19:55,404 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 20:19:55,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "gr2006.c.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:19:55" (1/1) ... [2018-12-03 20:19:55,434 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "gr2006.c.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:19:55" (1/1) ... [2018-12-03 20:19:55,442 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 20:19:55,443 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 20:19:55,443 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 20:19:55,443 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 20:19:55,456 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "gr2006.c.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:19:55" (1/1) ... [2018-12-03 20:19:55,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "gr2006.c.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:19:55" (1/1) ... [2018-12-03 20:19:55,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "gr2006.c.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:19:55" (1/1) ... [2018-12-03 20:19:55,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "gr2006.c.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:19:55" (1/1) ... [2018-12-03 20:19:55,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "gr2006.c.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:19:55" (1/1) ... [2018-12-03 20:19:55,462 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "gr2006.c.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:19:55" (1/1) ... [2018-12-03 20:19:55,463 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "gr2006.c.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:19:55" (1/1) ... [2018-12-03 20:19:55,464 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 20:19:55,465 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 20:19:55,465 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 20:19:55,465 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 20:19:55,466 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "gr2006.c.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:19:55" (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 [2018-12-03 20:19:55,537 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-12-03 20:19:55,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 20:19:55,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 20:19:55,814 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 20:19:55,814 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-03 20:19:55,815 INFO L202 PluginConnector]: Adding new model gr2006.c.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 08:19:55 BoogieIcfgContainer [2018-12-03 20:19:55,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 20:19:55,817 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-12-03 20:19:55,817 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-12-03 20:19:55,817 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-12-03 20:19:55,820 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "gr2006.c.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 08:19:55" (1/1) ... [2018-12-03 20:19:55,902 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 20:19:56,334 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 20:19:56,358 INFO L272 AbstractInterpreter]: Visited 7 different actions 45 times. Merged at 5 different actions 20 times. Widened at 3 different actions 10 times. Found 5 fixpoints after 2 different actions. Largest state had 0 variables. [2018-12-03 20:19:56,361 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-12-03 20:19:56,365 INFO L168 Benchmark]: Toolchain (without parser) took 962.91 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-12-03 20:19:56,368 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 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. [2018-12-03 20:19:56,368 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.90 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. [2018-12-03 20:19:56,369 INFO L168 Benchmark]: Boogie Preprocessor took 21.40 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. [2018-12-03 20:19:56,370 INFO L168 Benchmark]: RCFGBuilder took 350.80 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. [2018-12-03 20:19:56,371 INFO L168 Benchmark]: Abstract Interpretation took 544.54 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 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. [2018-12-03 20:19:56,375 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 0.21 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 38.90 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 21.40 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 350.80 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 544.54 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 54]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L14] havoc main_#res; [L15] havoc main_#t~post2, main_~x~4, main_#t~post1, main_#t~post0, main_~y~4; [L16] havoc main_~x~4; [L17] havoc main_~y~4; [L18] main_~x~4 := 0; [L19] main_~y~4 := 0; [L32] assume main_~x~4 < 50; [L33] main_#t~post0 := main_~y~4; [L34] main_~y~4 := main_#t~post0 + 1; [L35] havoc main_#t~post0; [L48] assume !(main_~y~4 < 0); [L49] main_#t~post2 := main_~x~4; [L50] main_~x~4 := main_#t~post2 + 1; [L51] havoc main_#t~post2; [L32] assume main_~x~4 < 50; [L33] main_#t~post0 := main_~y~4; [L34] main_~y~4 := main_#t~post0 + 1; [L35] havoc main_#t~post0; [L48] assume !(main_~y~4 < 0); [L49] main_#t~post2 := main_~x~4; [L50] main_~x~4 := main_#t~post2 + 1; [L51] havoc main_#t~post2; [L32] assume main_~x~4 < 50; [L33] main_#t~post0 := main_~y~4; [L34] main_~y~4 := main_#t~post0 + 1; [L35] havoc main_#t~post0; [L48] assume !(main_~y~4 < 0); [L49] main_#t~post2 := main_~x~4; [L50] main_~x~4 := main_#t~post2 + 1; [L51] havoc main_#t~post2; [L32] assume main_~x~4 < 50; [L33] main_#t~post0 := main_~y~4; [L34] main_~y~4 := main_#t~post0 + 1; [L35] havoc main_#t~post0; [L48] assume !(main_~y~4 < 0); [L49] main_#t~post2 := main_~x~4; [L50] main_~x~4 := main_#t~post2 + 1; [L51] havoc main_#t~post2; [L32] assume main_~x~4 < 50; [L33] main_#t~post0 := main_~y~4; [L34] main_~y~4 := main_#t~post0 + 1; [L35] havoc main_#t~post0; [L48] assume !(main_~y~4 < 0); [L49] main_#t~post2 := main_~x~4; [L50] main_~x~4 := main_#t~post2 + 1; [L51] havoc main_#t~post2; [L32] assume main_~x~4 < 50; [L33] main_#t~post0 := main_~y~4; [L34] main_~y~4 := main_#t~post0 + 1; [L35] havoc main_#t~post0; [L48] assume !(main_~y~4 < 0); [L49] main_#t~post2 := main_~x~4; [L50] main_~x~4 := main_#t~post2 + 1; [L51] havoc main_#t~post2; [L26] assume !(main_~x~4 < 50); [L27] main_#t~post1 := main_~y~4; [L28] main_~y~4 := main_#t~post1 - 1; [L29] havoc main_#t~post1; [L48] assume !(main_~y~4 < 0); [L49] main_#t~post2 := main_~x~4; [L50] main_~x~4 := main_#t~post2 + 1; [L51] havoc main_#t~post2; [L26] assume !(main_~x~4 < 50); [L27] main_#t~post1 := main_~y~4; [L28] main_~y~4 := main_#t~post1 - 1; [L29] havoc main_#t~post1; [L48] assume !(main_~y~4 < 0); [L49] main_#t~post2 := main_~x~4; [L50] main_~x~4 := main_#t~post2 + 1; [L51] havoc main_#t~post2; [L26] assume !(main_~x~4 < 50); [L27] main_#t~post1 := main_~y~4; [L28] main_~y~4 := main_#t~post1 - 1; [L29] havoc main_#t~post1; [L40] assume main_~y~4 < 0; [L41] assume !(main_~x~4 == 100); [L42] __VERIFIER_assert_#in~cond := 0; [L43] havoc __VERIFIER_assert_~cond; [L44] __VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; [L45] assume __VERIFIER_assert_~cond == 0; [L54] assert false; RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...