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 -s ../../../trunk/examples/settings/ai/array-bench/reach_32bit_compound_exp_cong.epf -i ../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/InvariantSynthesisWpOverapproxIntRealNegationBug.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c78c21b [2018-12-03 15:49:23,174 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 15:49:23,176 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 15:49:23,194 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-12-03 15:49:23,229 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 [2018-12-03 15:49:23,253 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 15:49:23,254 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 15:49:23,255 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-03 15:49:23,255 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-03 15:49:23,256 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 15:49:23,256 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 15:49:23,256 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 15:49:23,256 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 15:49:23,256 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 15:49:23,257 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 15:49:23,257 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 15:49:23,257 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2018-12-03 15:49:23,257 INFO L133 SettingsManager]: * Log string format=TERM [2018-12-03 15:49:23,257 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 15:49:23,258 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 15:49:23,258 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-03 15:49:23,259 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-03 15:49:23,259 INFO L133 SettingsManager]: * Use SBE=true [2018-12-03 15:49:23,259 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 15:49:23,259 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 15:49:23,259 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 15:49:23,260 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 15:49:23,261 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 15:49:23,262 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 15:49:23,262 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 15:49:23,262 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 15:49:23,262 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 15:49:23,262 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 15:49:23,262 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 15:49:23,263 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 15:49:23,263 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 15:49:23,263 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 15:49:23,263 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 15:49:23,263 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 15:49:23,264 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 15:49:23,264 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 15:49:23,264 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 15:49:23,264 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 15:49:23,264 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 15:49:23,265 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 15:49:23,265 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-03 15:49:23,297 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 15:49:23,312 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 15:49:23,319 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 15:49:23,320 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-03 15:49:23,321 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-03 15:49:23,322 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/InvariantSynthesisWpOverapproxIntRealNegationBug.bpl [2018-12-03 15:49:23,322 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/InvariantSynthesisWpOverapproxIntRealNegationBug.bpl' [2018-12-03 15:49:23,349 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 15:49:23,351 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-03 15:49:23,351 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 15:49:23,352 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 15:49:23,352 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 15:49:23,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "InvariantSynthesisWpOverapproxIntRealNegationBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:49:23" (1/1) ... [2018-12-03 15:49:23,378 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "InvariantSynthesisWpOverapproxIntRealNegationBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:49:23" (1/1) ... [2018-12-03 15:49:23,385 WARN L165 Inliner]: Program contained no entry procedure! [2018-12-03 15:49:23,385 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-12-03 15:49:23,385 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-12-03 15:49:23,388 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 15:49:23,388 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 15:49:23,389 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 15:49:23,389 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 15:49:23,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "InvariantSynthesisWpOverapproxIntRealNegationBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:49:23" (1/1) ... [2018-12-03 15:49:23,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "InvariantSynthesisWpOverapproxIntRealNegationBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:49:23" (1/1) ... [2018-12-03 15:49:23,401 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "InvariantSynthesisWpOverapproxIntRealNegationBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:49:23" (1/1) ... [2018-12-03 15:49:23,401 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "InvariantSynthesisWpOverapproxIntRealNegationBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:49:23" (1/1) ... [2018-12-03 15:49:23,402 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "InvariantSynthesisWpOverapproxIntRealNegationBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:49:23" (1/1) ... [2018-12-03 15:49:23,406 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "InvariantSynthesisWpOverapproxIntRealNegationBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:49:23" (1/1) ... [2018-12-03 15:49:23,407 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "InvariantSynthesisWpOverapproxIntRealNegationBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:49:23" (1/1) ... [2018-12-03 15:49:23,408 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 15:49:23,409 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 15:49:23,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 15:49:23,409 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 15:49:23,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "InvariantSynthesisWpOverapproxIntRealNegationBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:49:23" (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 15:49:23,477 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-12-03 15:49:23,477 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 15:49:23,478 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 15:49:23,630 INFO L272 CfgBuilder]: Using library mode [2018-12-03 15:49:23,630 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-03 15:49:23,631 INFO L202 PluginConnector]: Adding new model InvariantSynthesisWpOverapproxIntRealNegationBug.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:49:23 BoogieIcfgContainer [2018-12-03 15:49:23,631 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 15:49:23,632 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 15:49:23,632 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 15:49:23,635 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 15:49:23,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "InvariantSynthesisWpOverapproxIntRealNegationBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:49:23" (1/2) ... [2018-12-03 15:49:23,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36dd292e and model type InvariantSynthesisWpOverapproxIntRealNegationBug.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 03:49:23, skipping insertion in model container [2018-12-03 15:49:23,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "InvariantSynthesisWpOverapproxIntRealNegationBug.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:49:23" (2/2) ... [2018-12-03 15:49:23,638 INFO L112 eAbstractionObserver]: Analyzing ICFG InvariantSynthesisWpOverapproxIntRealNegationBug.bpl [2018-12-03 15:49:23,648 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 15:49:23,656 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 15:49:23,673 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 15:49:23,707 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 15:49:23,707 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 15:49:23,708 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 15:49:23,708 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 15:49:23,708 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 15:49:23,708 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 15:49:23,708 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 15:49:23,709 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 15:49:23,726 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2018-12-03 15:49:23,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-12-03 15:49:23,736 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 15:49:23,737 INFO L402 BasicCegarLoop]: trace histogram [1, 1] [2018-12-03 15:49:23,740 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-03 15:49:23,748 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 15:49:23,748 INFO L82 PathProgramCache]: Analyzing trace with hash 966, now seen corresponding path program 1 times [2018-12-03 15:49:23,752 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 15:49:23,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 15:49:23,809 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 15:49:23,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 15:49:23,810 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 15:49:23,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 15:49:23,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 15:49:23,905 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 15:49:23,905 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-12-03 15:49:23,906 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 15:49:23,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 15:49:23,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 15:49:23,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 15:49:23,924 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 3 states. [2018-12-03 15:49:23,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 15:49:23,953 INFO L93 Difference]: Finished difference Result 5 states and 5 transitions. [2018-12-03 15:49:23,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 15:49:23,955 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2018-12-03 15:49:23,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 15:49:23,964 INFO L225 Difference]: With dead ends: 5 [2018-12-03 15:49:23,964 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 15:49:23,968 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 15:49:23,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 15:49:23,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 15:49:23,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 15:49:23,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 15:49:23,996 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2 [2018-12-03 15:49:23,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 15:49:23,996 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 15:49:23,996 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 15:49:23,996 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 15:49:23,996 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 15:49:24,001 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-03 15:49:24,038 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONASSERT(line 21) no Hoare annotation was computed. [2018-12-03 15:49:24,038 INFO L448 ceAbstractionStarter]: For program point mainENTRY(lines 15 22) no Hoare annotation was computed. [2018-12-03 15:49:24,038 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 15 22) no Hoare annotation was computed. [2018-12-03 15:49:24,039 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 15 22) no Hoare annotation was computed. [2018-12-03 15:49:24,039 INFO L444 ceAbstractionStarter]: At program point L19loopEntry(line 19) the Hoare annotation is: (<= (+ x 1) y) [2018-12-03 15:49:24,052 INFO L202 PluginConnector]: Adding new model InvariantSynthesisWpOverapproxIntRealNegationBug.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 03:49:24 BoogieIcfgContainer [2018-12-03 15:49:24,053 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 15:49:24,054 INFO L168 Benchmark]: Toolchain (without parser) took 703.76 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. [2018-12-03 15:49:24,057 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 15:49:24,058 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.70 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 15:49:24,059 INFO L168 Benchmark]: Boogie Preprocessor took 19.85 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 15:49:24,061 INFO L168 Benchmark]: RCFGBuilder took 222.26 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-12-03 15:49:24,062 INFO L168 Benchmark]: TraceAbstraction took 420.96 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-12-03 15:49:24,069 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 36.70 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 19.85 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. * RCFGBuilder took 222.26 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 420.96 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: 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 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: x + 1 <= y - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 5 locations, 1 error locations. SAFE Result, 0.3s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3 SDtfs, 3 SDslu, 0 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5occurred in iteration=0, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 5 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 1 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...