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/gcd_2.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c78c21b [2018-12-03 20:52:14,202 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 20:52:14,204 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 20:52:14,217 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 20:52:14,217 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 20:52:14,218 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 20:52:14,219 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 20:52:14,221 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 20:52:14,223 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 20:52:14,224 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 20:52:14,225 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 20:52:14,225 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 20:52:14,226 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 20:52:14,227 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 20:52:14,228 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 20:52:14,229 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 20:52:14,230 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 20:52:14,232 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 20:52:14,234 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 20:52:14,236 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 20:52:14,237 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 20:52:14,238 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 20:52:14,241 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-12-03 20:52:14,250 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 [2018-12-03 20:52:14,264 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 20:52:14,264 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 20:52:14,267 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-03 20:52:14,267 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-03 20:52:14,267 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 20:52:14,267 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 20:52:14,268 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 20:52:14,268 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 20:52:14,268 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 20:52:14,269 INFO L133 SettingsManager]: * Underlying domain=OctagonDomain [2018-12-03 20:52:14,269 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2018-12-03 20:52:14,269 INFO L133 SettingsManager]: * Log string format=TERM [2018-12-03 20:52:14,269 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 20:52:14,269 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 20:52:14,270 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-03 20:52:14,270 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-03 20:52:14,270 INFO L133 SettingsManager]: * Use SBE=true [2018-12-03 20:52:14,271 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 20:52:14,272 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 20:52:14,272 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 20:52:14,272 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 20:52:14,272 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 20:52:14,272 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 20:52:14,273 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 20:52:14,273 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 20:52:14,273 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 20:52:14,273 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 20:52:14,273 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 20:52:14,274 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 20:52:14,274 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 20:52:14,274 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 20:52:14,275 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 20:52:14,275 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 20:52:14,275 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 20:52:14,275 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 20:52:14,275 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 20:52:14,276 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 20:52:14,276 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 20:52:14,276 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 20:52:14,276 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-03 20:52:14,329 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 20:52:14,347 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 20:52:14,352 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 20:52:14,354 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-03 20:52:14,354 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-03 20:52:14,355 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/gcd_2.i_4.bpl [2018-12-03 20:52:14,356 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/gcd_2.i_4.bpl' [2018-12-03 20:52:14,421 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 20:52:14,423 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-03 20:52:14,424 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 20:52:14,424 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 20:52:14,424 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 20:52:14,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:52:14" (1/1) ... [2018-12-03 20:52:14,457 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:52:14" (1/1) ... [2018-12-03 20:52:14,471 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 20:52:14,472 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 20:52:14,472 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 20:52:14,473 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 20:52:14,486 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:52:14" (1/1) ... [2018-12-03 20:52:14,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:52:14" (1/1) ... [2018-12-03 20:52:14,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:52:14" (1/1) ... [2018-12-03 20:52:14,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:52:14" (1/1) ... [2018-12-03 20:52:14,493 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:52:14" (1/1) ... [2018-12-03 20:52:14,496 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:52:14" (1/1) ... [2018-12-03 20:52:14,497 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:52:14" (1/1) ... [2018-12-03 20:52:14,505 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 20:52:14,506 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 20:52:14,506 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 20:52:14,506 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 20:52:14,509 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:52:14" (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 20:52:14,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 20:52:14,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 20:52:14,792 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 20:52:14,792 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-03 20:52:14,793 INFO L202 PluginConnector]: Adding new model gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 08:52:14 BoogieIcfgContainer [2018-12-03 20:52:14,793 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 20:52:14,794 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-12-03 20:52:14,794 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-12-03 20:52:14,794 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-12-03 20:52:14,795 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 08:52:14" (1/1) ... [2018-12-03 20:52:14,858 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 20:52:14,982 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-12-03 20:52:15,491 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 20:52:15,522 INFO L272 AbstractInterpreter]: Visited 5 different actions 13 times. Merged at 3 different actions 6 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2018-12-03 20:52:15,524 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-12-03 20:52:15,526 INFO L168 Benchmark]: Toolchain (without parser) took 1104.05 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-12-03 20:52:15,528 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-03 20:52:15,529 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.90 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-03 20:52:15,530 INFO L168 Benchmark]: Boogie Preprocessor took 33.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-03 20:52:15,531 INFO L168 Benchmark]: RCFGBuilder took 287.28 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 20:52:15,533 INFO L168 Benchmark]: Abstract Interpretation took 730.37 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. [2018-12-03 20:52:15,542 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 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.90 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 287.28 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. * Abstract Interpretation took 730.37 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 64]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L19] havoc main_#res; [L20] havoc main_#t~nondet0, main_#t~nondet1, main_#t~ret2, main_~x~7, main_~y~7, main_~g~7; [L21] assume -128 <= main_#t~nondet0 && main_#t~nondet0 <= 127; [L22] main_~x~7 := main_#t~nondet0; [L23] havoc main_#t~nondet0; [L24] assume -128 <= main_#t~nondet1 && main_#t~nondet1 <= 127; [L25] main_~y~7 := main_#t~nondet1; [L26] havoc main_#t~nondet1; [L27] havoc main_~g~7; [L28] gcd_test_#in~a, gcd_test_#in~b := main_~x~7, main_~y~7; [L29] havoc gcd_test_#res; [L30] havoc gcd_test_~a, gcd_test_~b, gcd_test_~t~5; [L31] gcd_test_~a := gcd_test_#in~a; [L32] gcd_test_~b := gcd_test_#in~b; [L33] havoc gcd_test_~t~5; [L34] assume gcd_test_~a < 0; [L35] gcd_test_~a := (if -gcd_test_~a % 256 <= 127 then -gcd_test_~a % 256 else -gcd_test_~a % 256 - 256); [L36] assume !(gcd_test_~b < 0); [L44] assume !(gcd_test_~b != 0); [L45] gcd_test_#res := gcd_test_~a; [L46] main_#t~ret2 := gcd_test_#res; [L47] assume -128 <= main_#t~ret2 && main_#t~ret2 <= 127; [L48] main_~g~7 := main_#t~ret2; [L49] havoc main_#t~ret2; [L50] assume main_~y~7 > 0; [L51] __VERIFIER_assert_#in~cond := (if main_~y~7 >= main_~g~7 then 1 else 0); [L52] havoc __VERIFIER_assert_~cond; [L53] __VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; [L54] assume __VERIFIER_assert_~cond == 0; [L55] assume !false; [L64] assert false; RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...