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/real-life/threadpooling_product.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c78c21b [2018-12-03 20:19:45,443 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 20:19:45,446 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 20:19:45,464 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 20:19:45,464 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 20:19:45,465 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 20:19:45,467 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 20:19:45,470 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 20:19:45,474 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 20:19:45,477 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 20:19:45,478 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-12-03 20:19:45,525 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 20:19:45,546 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 20:19:45,546 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 20:19:45,547 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-03 20:19:45,547 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-03 20:19:45,547 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 20:19:45,548 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 20:19:45,548 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 20:19:45,548 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 20:19:45,548 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 20:19:45,549 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2018-12-03 20:19:45,549 INFO L133 SettingsManager]: * Log string format=TERM [2018-12-03 20:19:45,549 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 20:19:45,549 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 20:19:45,550 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-03 20:19:45,550 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-03 20:19:45,550 INFO L133 SettingsManager]: * Use SBE=true [2018-12-03 20:19:45,551 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 20:19:45,551 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 20:19:45,551 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 20:19:45,551 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 20:19:45,551 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 20:19:45,552 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 20:19:45,552 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 20:19:45,552 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 20:19:45,552 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 20:19:45,552 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 20:19:45,553 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 20:19:45,553 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 20:19:45,553 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 20:19:45,553 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 20:19:45,554 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 20:19:45,554 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 20:19:45,554 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 20:19:45,554 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 20:19:45,554 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 20:19:45,555 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 20:19:45,555 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 20:19:45,555 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 20:19:45,555 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-03 20:19:45,597 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 20:19:45,612 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 20:19:45,616 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 20:19:45,618 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-03 20:19:45,618 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-03 20:19:45,619 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/threadpooling_product.bpl [2018-12-03 20:19:45,619 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/threadpooling_product.bpl' [2018-12-03 20:19:45,674 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 20:19:45,676 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-03 20:19:45,677 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 20:19:45,677 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 20:19:45,677 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 20:19:45,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "threadpooling_product.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:19:45" (1/1) ... [2018-12-03 20:19:45,707 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "threadpooling_product.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:19:45" (1/1) ... [2018-12-03 20:19:45,715 WARN L165 Inliner]: Program contained no entry procedure! [2018-12-03 20:19:45,715 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-12-03 20:19:45,715 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-12-03 20:19:45,718 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 20:19:45,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 20:19:45,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 20:19:45,719 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 20:19:45,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "threadpooling_product.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:19:45" (1/1) ... [2018-12-03 20:19:45,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "threadpooling_product.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:19:45" (1/1) ... [2018-12-03 20:19:45,734 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "threadpooling_product.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:19:45" (1/1) ... [2018-12-03 20:19:45,734 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "threadpooling_product.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:19:45" (1/1) ... [2018-12-03 20:19:45,743 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "threadpooling_product.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:19:45" (1/1) ... [2018-12-03 20:19:45,746 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "threadpooling_product.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:19:45" (1/1) ... [2018-12-03 20:19:45,748 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "threadpooling_product.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:19:45" (1/1) ... [2018-12-03 20:19:45,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 20:19:45,751 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 20:19:45,751 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 20:19:45,751 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 20:19:45,752 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "threadpooling_product.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:19:45" (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: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 20:19:45,824 INFO L124 BoogieDeclarations]: Specification and implementation of procedure product given in one single declaration [2018-12-03 20:19:45,825 INFO L130 BoogieDeclarations]: Found specification of procedure product [2018-12-03 20:19:45,825 INFO L138 BoogieDeclarations]: Found implementation of procedure product [2018-12-03 20:19:46,224 INFO L272 CfgBuilder]: Using library mode [2018-12-03 20:19:46,225 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-03 20:19:46,226 INFO L202 PluginConnector]: Adding new model threadpooling_product.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 08:19:46 BoogieIcfgContainer [2018-12-03 20:19:46,226 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 20:19:46,227 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-12-03 20:19:46,227 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-12-03 20:19:46,227 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-12-03 20:19:46,228 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "threadpooling_product.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 08:19:46" (1/1) ... [2018-12-03 20:19:46,317 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 20:19:47,290 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 20:19:47,315 INFO L272 AbstractInterpreter]: Visited 33 different actions 231 times. Merged at 32 different actions 106 times. Widened at 12 different actions 20 times. Found 90 fixpoints after 24 different actions. Largest state had 0 variables. [2018-12-03 20:19:47,317 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-12-03 20:19:47,318 INFO L168 Benchmark]: Toolchain (without parser) took 1643.88 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: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. [2018-12-03 20:19:47,321 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 20:19:47,322 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.85 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. [2018-12-03 20:19:47,323 INFO L168 Benchmark]: Boogie Preprocessor took 31.22 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 20:19:47,323 INFO L168 Benchmark]: RCFGBuilder took 475.47 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 20:19:47,324 INFO L168 Benchmark]: Abstract Interpretation took 1090.81 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: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-12-03 20:19:47,329 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 41.85 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 31.22 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 475.47 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 1090.81 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: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 85]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L15] havoc next; [L16] assume next >= 0; [L17] havoc workload; [L18] assume workload > 0; [L19] working0 := -1; [L20] working1 := -1; [L24] begin0 := next; [L25] next := next + workload; [L26] end0 := next; [L27] COND TRUE begin0 < end0 [L53] begin1 := next; [L54] next := next + workload; [L55] end1 := next; [L56] COND TRUE begin1 < end1 [L93] working1 := begin1; [L94] assert working0 != working1; [L95] begin1 := begin1 + 1; [L96] COND TRUE begin1 < end1 [L84] working0 := begin0; [L85] assert working0 != working1; - UnprovableResult [Line: 45]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L15] havoc next; [L16] assume next >= 0; [L17] havoc workload; [L18] assume workload > 0; [L19] working0 := -1; [L20] working1 := -1; [L24] begin0 := next; [L25] next := next + workload; [L26] end0 := next; [L27] COND TRUE begin0 < end0 [L53] begin1 := next; [L54] next := next + workload; [L55] end1 := next; [L56] COND TRUE begin1 < end1 [L93] working1 := begin1; [L94] assert working0 != working1; [L95] begin1 := begin1 + 1; [L96] COND FALSE !(begin1 < end1) [L44] working0 := begin0; [L45] assert working0 != working1; - UnprovableResult [Line: 94]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L15] havoc next; [L16] assume next >= 0; [L17] havoc workload; [L18] assume workload > 0; [L19] working0 := -1; [L20] working1 := -1; [L33] begin1 := next; [L34] next := next + workload; [L35] end1 := next; [L36] COND TRUE begin1 < end1 [L64] begin0 := next; [L65] next := next + workload; [L66] end0 := next; [L67] COND TRUE begin0 < end0 [L84] working0 := begin0; [L85] assert working0 != working1; [L86] begin0 := begin0 + 1; [L87] COND TRUE begin0 < end0 [L93] working1 := begin1; [L94] assert working0 != working1; - UnprovableResult [Line: 74]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L15] havoc next; [L16] assume next >= 0; [L17] havoc workload; [L18] assume workload > 0; [L19] working0 := -1; [L20] working1 := -1; [L33] begin1 := next; [L34] next := next + workload; [L35] end1 := next; [L36] COND TRUE begin1 < end1 [L64] begin0 := next; [L65] next := next + workload; [L66] end0 := next; [L67] COND TRUE begin0 < end0 [L84] working0 := begin0; [L85] assert working0 != working1; [L86] begin0 := begin0 + 1; [L87] COND FALSE !(begin0 < end0) [L73] working1 := begin1; [L74] assert working0 != working1; RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...