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_exp_cong.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/string.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-e4dfe74 [2018-12-18 18:21:14,338 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-18 18:21:14,340 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-18 18:21:14,353 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-18 18:21:14,353 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-18 18:21:14,358 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-18 18:21:14,360 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-18 18:21:14,363 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-18 18:21:14,366 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-18 18:21:14,367 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-18 18:21:14,368 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-12-18 18:21:14,388 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-18 18:21:14,388 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-18 18:21:14,389 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-18 18:21:14,393 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-18 18:21:14,394 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-18 18:21:14,395 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-18 18:21:14,400 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-18 18:21:14,400 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-18 18:21:14,402 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-12-18 18:21:14,407 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_compound_exp_cong.epf [2018-12-18 18:21:14,434 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-18 18:21:14,434 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-18 18:21:14,435 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-18 18:21:14,435 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-18 18:21:14,436 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-18 18:21:14,437 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-18 18:21:14,437 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-18 18:21:14,437 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-18 18:21:14,437 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-18 18:21:14,437 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-18 18:21:14,438 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-18 18:21:14,438 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-18 18:21:14,438 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-18 18:21:14,439 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-18 18:21:14,439 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-18 18:21:14,441 INFO L133 SettingsManager]: * Use SBE=true [2018-12-18 18:21:14,442 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-18 18:21:14,442 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-18 18:21:14,442 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-18 18:21:14,442 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-18 18:21:14,444 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-18 18:21:14,444 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-18 18:21:14,444 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-18 18:21:14,444 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-18 18:21:14,445 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-18 18:21:14,445 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-18 18:21:14,445 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-18 18:21:14,445 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-18 18:21:14,446 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-18 18:21:14,446 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-18 18:21:14,446 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-18 18:21:14,446 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-18 18:21:14,446 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-18 18:21:14,447 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-18 18:21:14,447 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-18 18:21:14,447 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-18 18:21:14,447 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-18 18:21:14,447 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-18 18:21:14,448 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-18 18:21:14,510 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-18 18:21:14,523 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-18 18:21:14,528 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-18 18:21:14,530 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-18 18:21:14,531 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-18 18:21:14,532 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/string.i_3.bpl [2018-12-18 18:21:14,532 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/string.i_3.bpl' [2018-12-18 18:21:14,587 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-18 18:21:14,588 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-18 18:21:14,589 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-18 18:21:14,589 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-18 18:21:14,590 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-18 18:21:14,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "string.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 06:21:14" (1/1) ... [2018-12-18 18:21:14,621 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "string.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 06:21:14" (1/1) ... [2018-12-18 18:21:14,629 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-18 18:21:14,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-18 18:21:14,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-18 18:21:14,631 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-18 18:21:14,640 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "string.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 06:21:14" (1/1) ... [2018-12-18 18:21:14,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "string.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 06:21:14" (1/1) ... [2018-12-18 18:21:14,642 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "string.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 06:21:14" (1/1) ... [2018-12-18 18:21:14,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "string.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 06:21:14" (1/1) ... [2018-12-18 18:21:14,648 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "string.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 06:21:14" (1/1) ... [2018-12-18 18:21:14,650 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "string.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 06:21:14" (1/1) ... [2018-12-18 18:21:14,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "string.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 06:21:14" (1/1) ... [2018-12-18 18:21:14,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-18 18:21:14,654 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-18 18:21:14,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-18 18:21:14,654 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-18 18:21:14,655 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "string.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 06:21:14" (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 [2018-12-18 18:21:14,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-18 18:21:14,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-18 18:21:15,280 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-18 18:21:15,280 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-12-18 18:21:15,281 INFO L202 PluginConnector]: Adding new model string.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 06:21:15 BoogieIcfgContainer [2018-12-18 18:21:15,281 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-18 18:21:15,282 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-12-18 18:21:15,282 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-12-18 18:21:15,282 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-12-18 18:21:15,284 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "string.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 06:21:15" (1/1) ... [2018-12-18 18:21:15,319 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-18 18:21:15,797 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-18 18:21:15,822 INFO L272 AbstractInterpreter]: Visited 7 different actions 19 times. Merged at 2 different actions 6 times. Never widened. Performed 206 root evaluator evaluations with a maximum evaluation depth of 5. Performed 206 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 4 fixpoints after 4 different actions. Largest state had 0 variables. [2018-12-18 18:21:15,824 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-12-18 18:21:15,826 INFO L168 Benchmark]: Toolchain (without parser) took 1238.37 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-12-18 18:21:15,828 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.27 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. [2018-12-18 18:21:15,829 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.93 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. [2018-12-18 18:21:15,830 INFO L168 Benchmark]: Boogie Preprocessor took 22.81 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. [2018-12-18 18:21:15,831 INFO L168 Benchmark]: RCFGBuilder took 627.43 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. [2018-12-18 18:21:15,832 INFO L168 Benchmark]: Abstract Interpretation took 542.71 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-12-18 18:21:15,837 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 0.27 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 40.93 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 22.81 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 627.43 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 542.71 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 89]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L23] havoc main_#res; [L24] havoc main_#t~nondet1, main_#t~post0, main_#t~nondet3, main_#t~post2, main_#t~post4, main_#t~post5, main_#t~post6, main_#t~post7, main_~string_A~5, main_~string_B~5, main_~i~5, main_~j~5, main_~nc_A~5, main_~nc_B~5, main_~found~5; [L25] havoc main_~string_A~5; [L26] havoc main_~string_B~5; [L27] havoc main_~i~5; [L28] havoc main_~j~5; [L29] havoc main_~nc_A~5; [L30] havoc main_~nc_B~5; [L31] main_~found~5 := 0; [L32] main_~i~5 := 0; [L45] assume !!(main_~i~5 < 5); [L46] assume -128 <= main_#t~nondet1 && main_#t~nondet1 <= 127; [L47] main_~string_A~5 := main_~string_A~5[main_~i~5 := main_#t~nondet1]; [L48] havoc main_#t~nondet1; [L49] main_#t~post0 := main_~i~5; [L50] main_~i~5 := main_#t~post0 + 1; [L51] havoc main_#t~post0; [L45] assume !!(main_~i~5 < 5); [L46] assume -128 <= main_#t~nondet1 && main_#t~nondet1 <= 127; [L47] main_~string_A~5 := main_~string_A~5[main_~i~5 := main_#t~nondet1]; [L48] havoc main_#t~nondet1; [L49] main_#t~post0 := main_~i~5; [L50] main_~i~5 := main_#t~post0 + 1; [L51] havoc main_#t~post0; [L40] assume !(main_~i~5 < 5); [L41] assume !!(main_~string_A~5[4] == 0); [L42] main_~i~5 := 0; [L80] assume !!(main_~i~5 < 5); [L81] assume -128 <= main_#t~nondet3 && main_#t~nondet3 <= 127; [L82] main_~string_B~5 := main_~string_B~5[main_~i~5 := main_#t~nondet3]; [L83] havoc main_#t~nondet3; [L84] main_#t~post2 := main_~i~5; [L85] main_~i~5 := main_#t~post2 + 1; [L86] havoc main_#t~post2; [L80] assume !!(main_~i~5 < 5); [L81] assume -128 <= main_#t~nondet3 && main_#t~nondet3 <= 127; [L82] main_~string_B~5 := main_~string_B~5[main_~i~5 := main_#t~nondet3]; [L83] havoc main_#t~nondet3; [L84] main_#t~post2 := main_~i~5; [L85] main_~i~5 := main_#t~post2 + 1; [L86] havoc main_#t~post2; [L59] assume !(main_~i~5 < 5); [L60] assume !!(main_~string_B~5[4] == 0); [L61] main_~nc_A~5 := 0; [L63] assume !(main_~string_A~5[main_~nc_A~5] != 0); [L64] main_~nc_B~5 := 0; [L66] assume !(main_~string_B~5[main_~nc_B~5] != 0); [L67] assume !!(main_~nc_B~5 >= main_~nc_A~5); [L68] main_~j~5 := 0; [L69] main_~i~5 := main_~j~5; [L71] assume !(main_~i~5 < main_~nc_A~5 && main_~j~5 < main_~nc_B~5); [L72] main_~found~5 := ~shiftLeft((if main_~j~5 > main_~nc_B~5 - 1 then 1 else 0), main_~i~5); [L73] __VERIFIER_assert_#in~cond := (if main_~found~5 == 0 || main_~found~5 == 1 then 1 else 0); [L74] havoc __VERIFIER_assert_~cond; [L75] __VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; [L76] assume __VERIFIER_assert_~cond == 0; [L77] assume !false; [L89] assert false; RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...