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/Interactive/input/boogie/recursive-wrong-prestate.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 09:52:26,904 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 09:52:26,906 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 09:52:26,917 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 09:52:26,917 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 09:52:26,918 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 09:52:26,919 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 09:52:26,921 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 09:52:26,923 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 09:52:26,924 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 09:52:26,925 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 09:52:26,925 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 09:52:26,926 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 09:52:26,926 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 09:52:26,927 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 09:52:26,929 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 09:52:26,929 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 09:52:26,930 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 09:52:26,932 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 09:52:26,934 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 09:52:26,936 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 09:52:26,937 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 09:52:26,938 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 09:52:26,939 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 09:52:26,942 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 09:52:26,942 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 09:52:26,942 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 09:52:26,943 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 09:52:26,944 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 09:52:26,945 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 09:52:26,945 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 09:52:26,946 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 09:52:26,947 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 09:52:26,948 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 09:52:26,949 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 09:52:26,949 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 09:52:26,950 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 09:52:26,950 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 09:52:26,950 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 09:52:26,951 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 09:52:26,952 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 09:52:26,987 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 09:52:27,003 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 09:52:27,007 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 09:52:27,009 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 09:52:27,010 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 09:52:27,010 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/Interactive/input/boogie/recursive-wrong-prestate.bpl [2019-08-05 09:52:27,011 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/Interactive/input/boogie/recursive-wrong-prestate.bpl' [2019-08-05 09:52:27,042 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 09:52:27,044 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 09:52:27,045 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 09:52:27,045 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 09:52:27,045 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 09:52:27,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "recursive-wrong-prestate.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:27" (1/1) ... [2019-08-05 09:52:27,070 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "recursive-wrong-prestate.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:27" (1/1) ... [2019-08-05 09:52:27,079 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 09:52:27,079 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 09:52:27,080 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 09:52:27,080 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 09:52:27,090 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "recursive-wrong-prestate.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:27" (1/1) ... [2019-08-05 09:52:27,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "recursive-wrong-prestate.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:27" (1/1) ... [2019-08-05 09:52:27,091 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "recursive-wrong-prestate.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:27" (1/1) ... [2019-08-05 09:52:27,091 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "recursive-wrong-prestate.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:27" (1/1) ... [2019-08-05 09:52:27,094 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "recursive-wrong-prestate.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:27" (1/1) ... [2019-08-05 09:52:27,097 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "recursive-wrong-prestate.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:27" (1/1) ... [2019-08-05 09:52:27,097 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "recursive-wrong-prestate.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:27" (1/1) ... [2019-08-05 09:52:27,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 09:52:27,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 09:52:27,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 09:52:27,100 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 09:52:27,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "recursive-wrong-prestate.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:27" (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 09:52:27,170 INFO L124 BoogieDeclarations]: Specification and implementation of procedure foo given in one single declaration [2019-08-05 09:52:27,170 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2019-08-05 09:52:27,171 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2019-08-05 09:52:27,171 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2019-08-05 09:52:27,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 09:52:27,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 09:52:27,538 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 09:52:27,538 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 09:52:27,539 INFO L202 PluginConnector]: Adding new model recursive-wrong-prestate.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 09:52:27 BoogieIcfgContainer [2019-08-05 09:52:27,539 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 09:52:27,541 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 09:52:27,541 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 09:52:27,544 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 09:52:27,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "recursive-wrong-prestate.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:27" (1/2) ... [2019-08-05 09:52:27,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c3e5b4b and model type recursive-wrong-prestate.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 09:52:27, skipping insertion in model container [2019-08-05 09:52:27,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "recursive-wrong-prestate.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 09:52:27" (2/2) ... [2019-08-05 09:52:27,548 INFO L109 eAbstractionObserver]: Analyzing ICFG recursive-wrong-prestate.bpl [2019-08-05 09:52:27,558 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 09:52:27,566 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 09:52:27,582 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 09:52:27,609 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 09:52:27,610 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 09:52:27,610 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 09:52:27,610 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 09:52:27,610 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 09:52:27,610 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 09:52:27,611 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 09:52:27,611 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 09:52:27,611 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 09:52:27,625 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-08-05 09:52:27,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-08-05 09:52:27,635 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:52:27,636 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-08-05 09:52:27,638 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:52:27,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:52:27,647 INFO L82 PathProgramCache]: Analyzing trace with hash 1460189233, now seen corresponding path program 1 times [2019-08-05 09:52:27,697 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:52:27,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:52:27,737 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 3 conjunts are in the unsatisfiable core [2019-08-05 09:52:27,741 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:52:27,910 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 09:52:27,912 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 09:52:27,913 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-08-05 09:52:27,916 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 09:52:27,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 09:52:27,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-05 09:52:27,935 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 4 states. [2019-08-05 09:52:28,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 09:52:28,027 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2019-08-05 09:52:28,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-05 09:52:28,029 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2019-08-05 09:52:28,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 09:52:28,037 INFO L225 Difference]: With dead ends: 15 [2019-08-05 09:52:28,037 INFO L226 Difference]: Without dead ends: 12 [2019-08-05 09:52:28,040 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-05 09:52:28,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-08-05 09:52:28,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2019-08-05 09:52:28,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-08-05 09:52:28,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2019-08-05 09:52:28,084 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 6 [2019-08-05 09:52:28,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 09:52:28,085 INFO L475 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2019-08-05 09:52:28,085 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 09:52:28,085 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2019-08-05 09:52:28,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-08-05 09:52:28,087 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:52:28,087 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-08-05 09:52:28,087 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:52:28,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:52:28,088 INFO L82 PathProgramCache]: Analyzing trace with hash 2085753139, now seen corresponding path program 1 times [2019-08-05 09:52:28,089 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:52:28,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:52:28,124 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 3 conjunts are in the unsatisfiable core [2019-08-05 09:52:28,128 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:52:28,279 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 5 DAG size of output: 3 [2019-08-05 09:52:28,363 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-08-05 09:52:28,364 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 09:52:28,364 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-08-05 09:52:28,365 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 09:52:28,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 09:52:28,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-05 09:52:28,368 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand 4 states. [2019-08-05 09:52:28,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 09:52:28,398 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2019-08-05 09:52:28,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-05 09:52:28,398 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-08-05 09:52:28,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 09:52:28,399 INFO L225 Difference]: With dead ends: 10 [2019-08-05 09:52:28,399 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 09:52:28,400 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-05 09:52:28,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 09:52:28,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 09:52:28,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 09:52:28,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 09:52:28,401 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2019-08-05 09:52:28,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 09:52:28,402 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 09:52:28,402 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 09:52:28,402 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 09:52:28,402 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 09:52:28,407 INFO L202 PluginConnector]: Adding new model recursive-wrong-prestate.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 09:52:28 BoogieIcfgContainer [2019-08-05 09:52:28,408 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 09:52:28,410 INFO L168 Benchmark]: Toolchain (without parser) took 1365.53 ms. Allocated memory is still 133.2 MB. Free memory was 109.5 MB in the beginning and 69.2 MB in the end (delta: 40.4 MB). Peak memory consumption was 40.4 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:28,411 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 133.2 MB. Free memory was 110.8 MB in the beginning and 110.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-05 09:52:28,413 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.25 ms. Allocated memory is still 133.2 MB. Free memory was 109.5 MB in the beginning and 107.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:28,414 INFO L168 Benchmark]: Boogie Preprocessor took 19.42 ms. Allocated memory is still 133.2 MB. Free memory was 107.7 MB in the beginning and 106.8 MB in the end (delta: 933.7 kB). Peak memory consumption was 933.7 kB. Max. memory is 7.1 GB. [2019-08-05 09:52:28,415 INFO L168 Benchmark]: RCFGBuilder took 439.89 ms. Allocated memory is still 133.2 MB. Free memory was 106.6 MB in the beginning and 95.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:28,416 INFO L168 Benchmark]: TraceAbstraction took 867.04 ms. Allocated memory is still 133.2 MB. Free memory was 95.7 MB in the beginning and 69.2 MB in the end (delta: 26.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:28,421 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 133.2 MB. Free memory was 110.8 MB in the beginning and 110.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 34.25 ms. Allocated memory is still 133.2 MB. Free memory was 109.5 MB in the beginning and 107.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 19.42 ms. Allocated memory is still 133.2 MB. Free memory was 107.7 MB in the beginning and 106.8 MB in the end (delta: 933.7 kB). Peak memory consumption was 933.7 kB. Max. memory is 7.1 GB. * RCFGBuilder took 439.89 ms. Allocated memory is still 133.2 MB. Free memory was 106.6 MB in the beginning and 95.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 867.04 ms. Allocated memory is still 133.2 MB. Free memory was 95.7 MB in the beginning and 69.2 MB in the end (delta: 26.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 20]: 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 2 procedures, 10 locations, 1 error locations. SAFE Result, 0.8s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 17 SDtfs, 1 SDslu, 28 SDs, 0 SdLazy, 9 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 242 SizeOfPredicates, 0 NumberOfNonLiveVariables, 45 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...