java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/programs/20181010-MemSafetyPathprograms/dll_extends_pointer_true-valid-memsafety.i_15.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 11:01:21,623 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 11:01:21,625 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 11:01:21,637 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 11:01:21,637 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 11:01:21,638 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 11:01:21,640 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 11:01:21,642 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 11:01:21,644 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 11:01:21,645 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 11:01:21,646 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 11:01:21,646 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 11:01:21,647 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 11:01:21,648 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 11:01:21,649 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 11:01:21,650 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 11:01:21,651 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 11:01:21,652 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 11:01:21,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 11:01:21,656 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 11:01:21,658 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 11:01:21,659 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 11:01:21,660 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 11:01:21,661 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 11:01:21,664 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 11:01:21,664 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 11:01:21,665 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 11:01:21,666 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 11:01:21,666 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 11:01:21,667 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 11:01:21,668 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 11:01:21,669 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 11:01:21,669 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 11:01:21,670 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 11:01:21,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 11:01:21,672 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 11:01:21,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 11:01:21,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 11:01:21,673 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 11:01:21,674 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 11:01:21,675 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 11:01:21,703 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 11:01:21,716 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 11:01:21,719 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 11:01:21,721 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 11:01:21,722 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 11:01:21,722 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/dll_extends_pointer_true-valid-memsafety.i_15.bpl [2019-08-05 11:01:21,723 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/dll_extends_pointer_true-valid-memsafety.i_15.bpl' [2019-08-05 11:01:21,775 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 11:01:21,777 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 11:01:21,778 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 11:01:21,778 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 11:01:21,778 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 11:01:21,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "dll_extends_pointer_true-valid-memsafety.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:01:21" (1/1) ... [2019-08-05 11:01:21,813 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "dll_extends_pointer_true-valid-memsafety.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:01:21" (1/1) ... [2019-08-05 11:01:21,822 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 11:01:21,823 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 11:01:21,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 11:01:21,823 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 11:01:21,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "dll_extends_pointer_true-valid-memsafety.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:01:21" (1/1) ... [2019-08-05 11:01:21,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "dll_extends_pointer_true-valid-memsafety.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:01:21" (1/1) ... [2019-08-05 11:01:21,839 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "dll_extends_pointer_true-valid-memsafety.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:01:21" (1/1) ... [2019-08-05 11:01:21,839 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "dll_extends_pointer_true-valid-memsafety.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:01:21" (1/1) ... [2019-08-05 11:01:21,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "dll_extends_pointer_true-valid-memsafety.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:01:21" (1/1) ... [2019-08-05 11:01:21,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "dll_extends_pointer_true-valid-memsafety.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:01:21" (1/1) ... [2019-08-05 11:01:21,850 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "dll_extends_pointer_true-valid-memsafety.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:01:21" (1/1) ... [2019-08-05 11:01:21,853 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 11:01:21,853 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 11:01:21,854 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 11:01:21,854 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 11:01:21,855 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dll_extends_pointer_true-valid-memsafety.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:01:21" (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:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-08-05 11:01:21,931 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2019-08-05 11:01:21,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 11:01:21,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 11:01:22,292 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 11:01:22,293 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 11:01:22,294 INFO L202 PluginConnector]: Adding new model dll_extends_pointer_true-valid-memsafety.i_15.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:01:22 BoogieIcfgContainer [2019-08-05 11:01:22,295 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 11:01:22,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 11:01:22,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 11:01:22,313 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 11:01:22,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dll_extends_pointer_true-valid-memsafety.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:01:21" (1/2) ... [2019-08-05 11:01:22,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@456cfbbd and model type dll_extends_pointer_true-valid-memsafety.i_15.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 11:01:22, skipping insertion in model container [2019-08-05 11:01:22,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dll_extends_pointer_true-valid-memsafety.i_15.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:01:22" (2/2) ... [2019-08-05 11:01:22,320 INFO L109 eAbstractionObserver]: Analyzing ICFG dll_extends_pointer_true-valid-memsafety.i_15.bpl [2019-08-05 11:01:22,344 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 11:01:22,363 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 11:01:22,396 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 11:01:22,425 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 11:01:22,425 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 11:01:22,426 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 11:01:22,426 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 11:01:22,427 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 11:01:22,427 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 11:01:22,427 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 11:01:22,427 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 11:01:22,427 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 11:01:22,445 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-08-05 11:01:22,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-08-05 11:01:22,461 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:01:22,462 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-08-05 11:01:22,465 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:01:22,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:01:22,476 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times [2019-08-05 11:01:22,534 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:01:22,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:01:22,618 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 10 conjunts are in the unsatisfiable core [2019-08-05 11:01:22,622 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:01:22,701 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-08-05 11:01:22,702 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:01:22,722 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:01:22,722 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-05 11:01:22,723 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-08-05 11:01:22,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 11:01:22,768 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:01:22,768 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-08-05 11:01:22,772 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 11:01:22,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 11:01:22,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-05 11:01:22,785 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2019-08-05 11:01:22,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:01:22,911 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2019-08-05 11:01:22,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-05 11:01:22,913 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-08-05 11:01:22,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:01:22,922 INFO L225 Difference]: With dead ends: 7 [2019-08-05 11:01:22,922 INFO L226 Difference]: Without dead ends: 7 [2019-08-05 11:01:22,925 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-08-05 11:01:22,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-08-05 11:01:22,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-08-05 11:01:22,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-08-05 11:01:22,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-08-05 11:01:22,956 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2019-08-05 11:01:22,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:01:22,957 INFO L475 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-08-05 11:01:22,957 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 11:01:22,957 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-08-05 11:01:22,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-08-05 11:01:22,958 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:01:22,958 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2019-08-05 11:01:22,958 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:01:22,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:01:22,959 INFO L82 PathProgramCache]: Analyzing trace with hash 889591169, now seen corresponding path program 1 times [2019-08-05 11:01:22,960 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:01:23,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:01:23,090 INFO L256 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 26 conjunts are in the unsatisfiable core [2019-08-05 11:01:23,092 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:01:23,132 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:01:23,147 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:01:23,156 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:01:23,159 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2019-08-05 11:01:23,160 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:01:23,305 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2019-08-05 11:01:23,306 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:01:23,334 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:01:23,336 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:01:23,340 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:01:23,342 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2019-08-05 11:01:23,343 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-05 11:01:23,403 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:01:23,406 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-08-05 11:01:23,406 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:50, output treesize:39 [2019-08-05 11:01:23,743 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2019-08-05 11:01:23,763 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:01:23,766 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:01:23,768 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2019-08-05 11:01:23,769 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:01:23,829 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:01:23,845 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:01:23,847 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:01:23,851 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:01:23,851 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 13 [2019-08-05 11:01:23,852 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-05 11:01:23,957 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2019-08-05 11:01:23,958 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:01:23,960 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-08-05 11:01:23,961 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:59, output treesize:7 [2019-08-05 11:01:24,048 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 11:01:24,048 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 11:01:24,048 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2019-08-05 11:01:24,050 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-08-05 11:01:24,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-08-05 11:01:24,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-08-05 11:01:24,051 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 5 states. [2019-08-05 11:01:24,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:01:24,133 INFO L93 Difference]: Finished difference Result 4 states and 3 transitions. [2019-08-05 11:01:24,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-08-05 11:01:24,134 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2019-08-05 11:01:24,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:01:24,134 INFO L225 Difference]: With dead ends: 4 [2019-08-05 11:01:24,135 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 11:01:24,136 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-08-05 11:01:24,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 11:01:24,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 11:01:24,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 11:01:24,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 11:01:24,137 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2019-08-05 11:01:24,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:01:24,138 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 11:01:24,138 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-08-05 11:01:24,138 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 11:01:24,138 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 11:01:24,143 INFO L202 PluginConnector]: Adding new model dll_extends_pointer_true-valid-memsafety.i_15.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 11:01:24 BoogieIcfgContainer [2019-08-05 11:01:24,144 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 11:01:24,146 INFO L168 Benchmark]: Toolchain (without parser) took 2368.56 ms. Allocated memory was 134.7 MB in the beginning and 168.8 MB in the end (delta: 34.1 MB). Free memory was 111.9 MB in the beginning and 115.3 MB in the end (delta: -3.4 MB). Peak memory consumption was 30.7 MB. Max. memory is 7.1 GB. [2019-08-05 11:01:24,147 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 134.7 MB. Free memory was 113.5 MB in the beginning and 113.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-08-05 11:01:24,148 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.63 ms. Allocated memory is still 134.7 MB. Free memory was 111.7 MB in the beginning and 110.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. [2019-08-05 11:01:24,149 INFO L168 Benchmark]: Boogie Preprocessor took 30.19 ms. Allocated memory is still 134.7 MB. Free memory was 109.8 MB in the beginning and 108.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-08-05 11:01:24,150 INFO L168 Benchmark]: RCFGBuilder took 441.50 ms. Allocated memory is still 134.7 MB. Free memory was 108.5 MB in the beginning and 94.8 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2019-08-05 11:01:24,151 INFO L168 Benchmark]: TraceAbstraction took 1840.45 ms. Allocated memory was 134.7 MB in the beginning and 168.8 MB in the end (delta: 34.1 MB). Free memory was 94.3 MB in the beginning and 115.3 MB in the end (delta: -21.0 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. [2019-08-05 11:01:24,155 INFO L335 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 134.7 MB. Free memory was 113.5 MB in the beginning and 113.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 44.63 ms. Allocated memory is still 134.7 MB. Free memory was 111.7 MB in the beginning and 110.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.19 ms. Allocated memory is still 134.7 MB. Free memory was 109.8 MB in the beginning and 108.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 441.50 ms. Allocated memory is still 134.7 MB. Free memory was 108.5 MB in the beginning and 94.8 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1840.45 ms. Allocated memory was 134.7 MB in the beginning and 168.8 MB in the end (delta: 34.1 MB). Free memory was 94.3 MB in the beginning and 115.3 MB in the end (delta: -21.0 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 143]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. SAFE Result, 1.7s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4 SDtfs, 2 SDslu, 2 SDs, 0 SdLazy, 16 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 2 QuantifiedInterpolants, 498 SizeOfPredicates, 22 NumberOfNonLiveVariables, 180 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 1/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...