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/real-life/threadpooling_product_WithoutIf.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c78c21b [2018-12-03 20:51:29,560 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 20:51:29,563 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 20:51:29,575 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 20:51:29,575 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 20:51:29,576 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 20:51:29,578 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 20:51:29,580 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 20:51:29,582 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 20:51:29,582 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 20:51:29,583 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 20:51:29,584 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 20:51:29,585 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 20:51:29,586 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 20:51:29,587 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 20:51:29,588 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 20:51:29,588 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 20:51:29,590 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 20:51:29,593 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 20:51:29,594 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 20:51:29,596 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 20:51:29,597 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 20:51:29,600 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-12-03 20:51:29,610 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 20:51:29,635 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 20:51:29,636 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 20:51:29,639 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-03 20:51:29,640 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-03 20:51:29,640 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 20:51:29,640 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 20:51:29,640 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 20:51:29,641 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 20:51:29,641 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 20:51:29,641 INFO L133 SettingsManager]: * Underlying domain=OctagonDomain [2018-12-03 20:51:29,641 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2018-12-03 20:51:29,641 INFO L133 SettingsManager]: * Log string format=TERM [2018-12-03 20:51:29,642 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 20:51:29,642 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 20:51:29,643 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-03 20:51:29,644 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-03 20:51:29,644 INFO L133 SettingsManager]: * Use SBE=true [2018-12-03 20:51:29,644 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 20:51:29,644 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 20:51:29,644 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 20:51:29,645 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 20:51:29,645 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 20:51:29,645 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 20:51:29,645 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 20:51:29,645 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 20:51:29,646 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 20:51:29,648 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 20:51:29,648 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 20:51:29,648 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 20:51:29,648 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 20:51:29,649 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 20:51:29,649 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 20:51:29,650 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 20:51:29,650 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 20:51:29,650 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 20:51:29,650 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 20:51:29,650 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 20:51:29,651 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 20:51:29,651 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 20:51:29,651 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-03 20:51:29,690 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 20:51:29,705 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 20:51:29,709 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 20:51:29,711 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-03 20:51:29,711 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-03 20:51:29,712 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/threadpooling_product_WithoutIf.bpl [2018-12-03 20:51:29,713 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/threadpooling_product_WithoutIf.bpl' [2018-12-03 20:51:29,750 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 20:51:29,751 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-03 20:51:29,752 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 20:51:29,752 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 20:51:29,752 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 20:51:29,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "threadpooling_product_WithoutIf.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:51:29" (1/1) ... [2018-12-03 20:51:29,782 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "threadpooling_product_WithoutIf.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:51:29" (1/1) ... [2018-12-03 20:51:29,791 WARN L165 Inliner]: Program contained no entry procedure! [2018-12-03 20:51:29,791 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-12-03 20:51:29,791 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-12-03 20:51:29,794 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 20:51:29,795 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 20:51:29,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 20:51:29,795 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 20:51:29,808 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "threadpooling_product_WithoutIf.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:51:29" (1/1) ... [2018-12-03 20:51:29,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "threadpooling_product_WithoutIf.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:51:29" (1/1) ... [2018-12-03 20:51:29,809 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "threadpooling_product_WithoutIf.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:51:29" (1/1) ... [2018-12-03 20:51:29,809 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "threadpooling_product_WithoutIf.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:51:29" (1/1) ... [2018-12-03 20:51:29,813 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "threadpooling_product_WithoutIf.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:51:29" (1/1) ... [2018-12-03 20:51:29,816 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "threadpooling_product_WithoutIf.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:51:29" (1/1) ... [2018-12-03 20:51:29,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "threadpooling_product_WithoutIf.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:51:29" (1/1) ... [2018-12-03 20:51:29,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 20:51:29,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 20:51:29,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 20:51:29,820 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 20:51:29,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "threadpooling_product_WithoutIf.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:51:29" (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 20:51:29,899 INFO L124 BoogieDeclarations]: Specification and implementation of procedure product given in one single declaration [2018-12-03 20:51:29,899 INFO L130 BoogieDeclarations]: Found specification of procedure product [2018-12-03 20:51:29,900 INFO L138 BoogieDeclarations]: Found implementation of procedure product [2018-12-03 20:51:30,341 INFO L272 CfgBuilder]: Using library mode [2018-12-03 20:51:30,342 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-03 20:51:30,342 INFO L202 PluginConnector]: Adding new model threadpooling_product_WithoutIf.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 08:51:30 BoogieIcfgContainer [2018-12-03 20:51:30,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 20:51:30,343 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-12-03 20:51:30,344 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-12-03 20:51:30,344 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-12-03 20:51:30,345 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "threadpooling_product_WithoutIf.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 08:51:30" (1/1) ... [2018-12-03 20:51:30,430 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 20:51:30,860 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 20:51:30,883 INFO L272 AbstractInterpreter]: Visited 25 different actions 115 times. Merged at 24 different actions 51 times. Widened at 3 different actions 3 times. Found 40 fixpoints after 17 different actions. Largest state had 0 variables. [2018-12-03 20:51:30,887 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-12-03 20:51:30,888 INFO L168 Benchmark]: Toolchain (without parser) took 1137.32 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: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-12-03 20:51:30,892 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 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 20:51:30,892 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.21 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 20:51:30,896 INFO L168 Benchmark]: Boogie Preprocessor took 24.71 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 20:51:30,897 INFO L168 Benchmark]: RCFGBuilder took 522.50 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 20:51:30,899 INFO L168 Benchmark]: Abstract Interpretation took 543.64 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-12-03 20:51:30,907 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 0.20 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 42.21 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 Preprocessor took 24.71 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 522.50 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 543.64 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 58]: 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; [L45] begin1 := next; [L46] next := next + workload; [L47] end1 := next; [L68] working0 := begin0; [L69] assert working0 != working1; [L70] begin0 := begin0 + 1; [L71] COND FALSE !(begin0 < end0) [L57] working1 := begin1; [L58] assert working0 != working1; - UnprovableResult [Line: 69]: 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; [L45] begin1 := next; [L46] next := next + workload; [L47] end1 := next; [L77] working1 := begin1; [L78] assert working0 != working1; [L79] begin1 := begin1 + 1; [L80] COND TRUE begin1 < end1 [L68] working0 := begin0; [L69] assert working0 != working1; - UnprovableResult [Line: 37]: 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; [L45] begin1 := next; [L46] next := next + workload; [L47] end1 := next; [L77] working1 := begin1; [L78] assert working0 != working1; [L79] begin1 := begin1 + 1; [L80] COND FALSE !(begin1 < end1) [L36] working0 := begin0; [L37] assert working0 != working1; - UnprovableResult [Line: 78]: 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; [L29] begin1 := next; [L30] next := next + workload; [L31] end1 := next; [L52] begin0 := next; [L53] next := next + workload; [L54] end0 := next; [L68] working0 := begin0; [L69] assert working0 != working1; [L70] begin0 := begin0 + 1; [L71] COND TRUE begin0 < end0 [L77] working1 := begin1; [L78] assert working0 != working1; RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...