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/abstractInterpretation/benchmark/eq/boogie-example-framing_reduced_2.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 11:16:17,341 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 11:16:17,345 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 11:16:17,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 11:16:17,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 11:16:17,361 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 11:16:17,363 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 11:16:17,366 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 11:16:17,368 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 11:16:17,370 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 11:16:17,371 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 11:16:17,372 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 11:16:17,372 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 11:16:17,375 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 11:16:17,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 11:16:17,377 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 11:16:17,378 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 11:16:17,388 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 11:16:17,389 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 11:16:17,393 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 11:16:17,395 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 11:16:17,396 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 11:16:17,399 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 11:16:17,400 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 11:16:17,404 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 11:16:17,404 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 11:16:17,404 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 11:16:17,405 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 11:16:17,406 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 11:16:17,407 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 11:16:17,409 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 11:16:17,410 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 11:16:17,412 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 11:16:17,413 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 11:16:17,415 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 11:16:17,415 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 11:16:17,416 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 11:16:17,416 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 11:16:17,417 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 11:16:17,417 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 11:16:17,418 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 11:16:17,460 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 11:16:17,473 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 11:16:17,476 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 11:16:17,478 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 11:16:17,478 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 11:16:17,479 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/abstractInterpretation/benchmark/eq/boogie-example-framing_reduced_2.bpl [2019-08-05 11:16:17,479 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/abstractInterpretation/benchmark/eq/boogie-example-framing_reduced_2.bpl' [2019-08-05 11:16:17,513 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 11:16:17,514 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 11:16:17,515 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 11:16:17,515 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 11:16:17,515 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 11:16:17,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "boogie-example-framing_reduced_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:16:17" (1/1) ... [2019-08-05 11:16:17,541 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "boogie-example-framing_reduced_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:16:17" (1/1) ... [2019-08-05 11:16:17,560 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 11:16:17,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 11:16:17,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 11:16:17,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 11:16:17,572 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "boogie-example-framing_reduced_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:16:17" (1/1) ... [2019-08-05 11:16:17,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "boogie-example-framing_reduced_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:16:17" (1/1) ... [2019-08-05 11:16:17,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "boogie-example-framing_reduced_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:16:17" (1/1) ... [2019-08-05 11:16:17,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "boogie-example-framing_reduced_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:16:17" (1/1) ... [2019-08-05 11:16:17,576 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "boogie-example-framing_reduced_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:16:17" (1/1) ... [2019-08-05 11:16:17,579 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "boogie-example-framing_reduced_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:16:17" (1/1) ... [2019-08-05 11:16:17,580 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "boogie-example-framing_reduced_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:16:17" (1/1) ... [2019-08-05 11:16:17,581 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 11:16:17,582 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 11:16:17,582 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 11:16:17,582 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 11:16:17,583 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "boogie-example-framing_reduced_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:16:17" (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 11:16:17,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 11:16:17,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 11:16:17,896 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 11:16:17,897 INFO L283 CfgBuilder]: Removed 3 assume(true) statements. [2019-08-05 11:16:17,898 INFO L202 PluginConnector]: Adding new model boogie-example-framing_reduced_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:16:17 BoogieIcfgContainer [2019-08-05 11:16:17,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 11:16:17,899 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 11:16:17,900 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 11:16:17,903 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 11:16:17,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "boogie-example-framing_reduced_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:16:17" (1/2) ... [2019-08-05 11:16:17,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24e26e4b and model type boogie-example-framing_reduced_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 11:16:17, skipping insertion in model container [2019-08-05 11:16:17,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "boogie-example-framing_reduced_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:16:17" (2/2) ... [2019-08-05 11:16:17,907 INFO L109 eAbstractionObserver]: Analyzing ICFG boogie-example-framing_reduced_2.bpl [2019-08-05 11:16:17,917 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 11:16:17,924 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 11:16:17,937 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 11:16:17,960 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 11:16:17,960 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 11:16:17,961 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 11:16:17,961 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 11:16:17,961 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 11:16:17,961 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 11:16:17,961 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 11:16:17,961 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 11:16:17,962 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 11:16:17,975 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2019-08-05 11:16:17,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-08-05 11:16:17,983 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:16:17,984 INFO L399 BasicCegarLoop]: trace histogram [1, 1] [2019-08-05 11:16:17,986 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:16:17,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:16:17,992 INFO L82 PathProgramCache]: Analyzing trace with hash 967, now seen corresponding path program 1 times [2019-08-05 11:16:18,040 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:16:18,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:16:18,076 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2019-08-05 11:16:18,081 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:16:18,171 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 11:16:18,172 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:16:18,184 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:16:18,184 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-05 11:16:18,185 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-08-05 11:16:18,218 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 11:16:18,221 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:16:18,222 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-08-05 11:16:18,226 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 11:16:18,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 11:16:18,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 11:16:18,261 INFO L87 Difference]: Start difference. First operand 4 states. Second operand 3 states. [2019-08-05 11:16:18,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:16:18,366 INFO L93 Difference]: Finished difference Result 5 states and 6 transitions. [2019-08-05 11:16:18,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 11:16:18,368 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2019-08-05 11:16:18,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:16:18,379 INFO L225 Difference]: With dead ends: 5 [2019-08-05 11:16:18,384 INFO L226 Difference]: Without dead ends: 4 [2019-08-05 11:16:18,388 INFO L628 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 [2019-08-05 11:16:18,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states. [2019-08-05 11:16:18,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2019-08-05 11:16:18,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-08-05 11:16:18,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4 transitions. [2019-08-05 11:16:18,417 INFO L78 Accepts]: Start accepts. Automaton has 4 states and 4 transitions. Word has length 2 [2019-08-05 11:16:18,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:16:18,418 INFO L475 AbstractCegarLoop]: Abstraction has 4 states and 4 transitions. [2019-08-05 11:16:18,418 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 11:16:18,418 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 4 transitions. [2019-08-05 11:16:18,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-08-05 11:16:18,419 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:16:18,419 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-08-05 11:16:18,419 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:16:18,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:16:18,420 INFO L82 PathProgramCache]: Analyzing trace with hash 29921, now seen corresponding path program 1 times [2019-08-05 11:16:18,421 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:16:18,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:16:18,435 WARN L254 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2019-08-05 11:16:18,436 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:16:18,483 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 11:16:18,484 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:16:18,576 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:16:18,577 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-05 11:16:18,578 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-08-05 11:16:18,779 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:16:18,780 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-08-05 11:16:18,781 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:16:18,792 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:16:18,821 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:16:18,828 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2019-08-05 11:16:18,830 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-05 11:16:18,892 INFO L567 ElimStorePlain]: treesize reduction 4, result has 73.3 percent of original size [2019-08-05 11:16:18,894 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-08-05 11:16:18,894 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:22, output treesize:11 [2019-08-05 11:16:18,917 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 11:16:18,917 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 11:16:18,917 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2019-08-05 11:16:18,920 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 11:16:18,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 11:16:18,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-05 11:16:18,921 INFO L87 Difference]: Start difference. First operand 4 states and 4 transitions. Second operand 4 states. [2019-08-05 11:16:18,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:16:18,969 INFO L93 Difference]: Finished difference Result 3 states and 3 transitions. [2019-08-05 11:16:18,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-05 11:16:18,969 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-08-05 11:16:18,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:16:18,970 INFO L225 Difference]: With dead ends: 3 [2019-08-05 11:16:18,970 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 11:16:18,971 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-08-05 11:16:18,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 11:16:18,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 11:16:18,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 11:16:18,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 11:16:18,972 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2019-08-05 11:16:18,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:16:18,985 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 11:16:18,985 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 11:16:18,985 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 11:16:18,985 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 11:16:18,991 INFO L202 PluginConnector]: Adding new model boogie-example-framing_reduced_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 11:16:18 BoogieIcfgContainer [2019-08-05 11:16:18,992 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 11:16:18,994 INFO L168 Benchmark]: Toolchain (without parser) took 1478.85 ms. Allocated memory was 138.9 MB in the beginning and 178.8 MB in the end (delta: 39.8 MB). Free memory was 107.3 MB in the beginning and 149.3 MB in the end (delta: -42.0 MB). Peak memory consumption was 58.6 MB. Max. memory is 7.1 GB. [2019-08-05 11:16:18,995 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 108.5 MB in the beginning and 108.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-08-05 11:16:18,996 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.99 ms. Allocated memory is still 138.9 MB. Free memory was 107.1 MB in the beginning and 105.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-08-05 11:16:18,997 INFO L168 Benchmark]: Boogie Preprocessor took 20.09 ms. Allocated memory is still 138.9 MB. Free memory was 105.0 MB in the beginning and 103.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. [2019-08-05 11:16:18,998 INFO L168 Benchmark]: RCFGBuilder took 316.46 ms. Allocated memory is still 138.9 MB. Free memory was 103.9 MB in the beginning and 95.1 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 7.1 GB. [2019-08-05 11:16:18,999 INFO L168 Benchmark]: TraceAbstraction took 1092.41 ms. Allocated memory was 138.9 MB in the beginning and 178.8 MB in the end (delta: 39.8 MB). Free memory was 94.9 MB in the beginning and 149.7 MB in the end (delta: -54.8 MB). Peak memory consumption was 46.1 MB. Max. memory is 7.1 GB. [2019-08-05 11:16:19,003 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 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 108.5 MB in the beginning and 108.3 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 45.99 ms. Allocated memory is still 138.9 MB. Free memory was 107.1 MB in the beginning and 105.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 20.09 ms. Allocated memory is still 138.9 MB. Free memory was 105.0 MB in the beginning and 103.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 316.46 ms. Allocated memory is still 138.9 MB. Free memory was 103.9 MB in the beginning and 95.1 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1092.41 ms. Allocated memory was 138.9 MB in the beginning and 178.8 MB in the end (delta: 39.8 MB). Free memory was 94.9 MB in the beginning and 149.7 MB in the end (delta: -54.8 MB). Peak memory consumption was 46.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: 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, 4 locations, 1 error locations. SAFE Result, 1.0s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3 SDtfs, 1 SDslu, 0 SDs, 0 SdLazy, 7 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 1 QuantifiedInterpolants, 51 SizeOfPredicates, 1 NumberOfNonLiveVariables, 16 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/1 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...