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/20170304-DifficultPathPrograms/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 10:20:48,433 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 10:20:48,435 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 10:20:48,447 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 10:20:48,447 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 10:20:48,448 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 10:20:48,449 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 10:20:48,453 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 10:20:48,455 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 10:20:48,456 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 10:20:48,457 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 10:20:48,457 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 10:20:48,458 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 10:20:48,458 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 10:20:48,459 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 10:20:48,461 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 10:20:48,461 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 10:20:48,462 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 10:20:48,464 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 10:20:48,466 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 10:20:48,468 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 10:20:48,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 10:20:48,470 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 10:20:48,471 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 10:20:48,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 10:20:48,474 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 10:20:48,474 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 10:20:48,475 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 10:20:48,476 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 10:20:48,477 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 10:20:48,477 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 10:20:48,478 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 10:20:48,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 10:20:48,480 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 10:20:48,481 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 10:20:48,482 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 10:20:48,482 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 10:20:48,483 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 10:20:48,483 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 10:20:48,484 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 10:20:48,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 10:20:48,521 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 10:20:48,539 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 10:20:48,543 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 10:20:48,545 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 10:20:48,545 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 10:20:48,546 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl [2019-08-05 10:20:48,547 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl' [2019-08-05 10:20:48,610 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 10:20:48,611 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 10:20:48,612 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 10:20:48,612 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 10:20:48,613 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 10:20:48,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:20:48" (1/1) ... [2019-08-05 10:20:48,639 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:20:48" (1/1) ... [2019-08-05 10:20:48,652 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 10:20:48,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 10:20:48,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 10:20:48,653 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 10:20:48,663 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:20:48" (1/1) ... [2019-08-05 10:20:48,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:20:48" (1/1) ... [2019-08-05 10:20:48,669 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:20:48" (1/1) ... [2019-08-05 10:20:48,671 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:20:48" (1/1) ... [2019-08-05 10:20:48,686 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:20:48" (1/1) ... [2019-08-05 10:20:48,689 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:20:48" (1/1) ... [2019-08-05 10:20:48,691 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:20:48" (1/1) ... [2019-08-05 10:20:48,694 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 10:20:48,694 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 10:20:48,695 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 10:20:48,695 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 10:20:48,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:20:48" (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 10:20:48,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 10:20:48,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 10:20:49,591 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 10:20:49,592 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-05 10:20:49,593 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 10:20:49 BoogieIcfgContainer [2019-08-05 10:20:49,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 10:20:49,595 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 10:20:49,595 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 10:20:49,598 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 10:20:49,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:20:48" (1/2) ... [2019-08-05 10:20:49,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66dff776 and model type pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 10:20:49, skipping insertion in model container [2019-08-05 10:20:49,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 10:20:49" (2/2) ... [2019-08-05 10:20:49,605 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl [2019-08-05 10:20:49,612 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 10:20:49,619 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 10:20:49,633 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 10:20:49,658 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 10:20:49,659 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 10:20:49,659 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 10:20:49,659 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 10:20:49,659 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 10:20:49,660 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 10:20:49,660 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 10:20:49,660 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 10:20:49,660 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 10:20:49,673 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-08-05 10:20:49,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-08-05 10:20:49,681 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:20:49,682 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-08-05 10:20:49,685 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:20:49,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:20:49,690 INFO L82 PathProgramCache]: Analyzing trace with hash 979518, now seen corresponding path program 1 times [2019-08-05 10:20:49,740 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:20:49,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:20:49,866 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 12 conjunts are in the unsatisfiable core [2019-08-05 10:20:49,872 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:20:49,987 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:20:50,068 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 10:20:50,071 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 10:20:50,071 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-08-05 10:20:50,075 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 10:20:50,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 10:20:50,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-05 10:20:50,087 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2019-08-05 10:20:50,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:20:50,162 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2019-08-05 10:20:50,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-05 10:20:50,163 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-08-05 10:20:50,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:20:50,173 INFO L225 Difference]: With dead ends: 8 [2019-08-05 10:20:50,173 INFO L226 Difference]: Without dead ends: 8 [2019-08-05 10:20:50,175 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 10:20:50,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-08-05 10:20:50,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2019-08-05 10:20:50,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-08-05 10:20:50,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-08-05 10:20:50,206 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2019-08-05 10:20:50,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:20:50,206 INFO L475 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-08-05 10:20:50,207 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 10:20:50,207 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-08-05 10:20:50,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-08-05 10:20:50,207 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:20:50,207 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2019-08-05 10:20:50,208 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:20:50,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:20:50,208 INFO L82 PathProgramCache]: Analyzing trace with hash 941392015, now seen corresponding path program 1 times [2019-08-05 10:20:50,211 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:20:50,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:20:50,361 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 14 conjunts are in the unsatisfiable core [2019-08-05 10:20:50,373 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:20:50,466 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:20:50,651 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2019-08-05 10:20:50,656 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:20:50,712 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:20:50,713 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:20:50,713 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2019-08-05 10:20:50,715 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-08-05 10:20:50,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-08-05 10:20:50,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-08-05 10:20:50,716 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 5 states. [2019-08-05 10:20:50,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:20:50,976 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2019-08-05 10:20:50,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-08-05 10:20:50,977 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2019-08-05 10:20:50,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:20:50,978 INFO L225 Difference]: With dead ends: 10 [2019-08-05 10:20:50,978 INFO L226 Difference]: Without dead ends: 10 [2019-08-05 10:20:50,980 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-08-05 10:20:50,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-08-05 10:20:50,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2019-08-05 10:20:50,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-08-05 10:20:50,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-08-05 10:20:50,984 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2019-08-05 10:20:50,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:20:50,985 INFO L475 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-08-05 10:20:50,985 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-08-05 10:20:50,985 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-08-05 10:20:50,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-08-05 10:20:50,986 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:20:50,986 INFO L399 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1] [2019-08-05 10:20:50,986 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:20:50,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:20:50,987 INFO L82 PathProgramCache]: Analyzing trace with hash -1560297824, now seen corresponding path program 2 times [2019-08-05 10:20:50,989 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:20:51,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:20:51,136 INFO L256 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 15 conjunts are in the unsatisfiable core [2019-08-05 10:20:51,140 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:20:51,194 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:20:51,360 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:20:51,410 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:20:51,411 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:20:51,412 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-08-05 10:20:51,412 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-08-05 10:20:51,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-08-05 10:20:51,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-08-05 10:20:51,413 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 6 states. [2019-08-05 10:20:51,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:20:51,746 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2019-08-05 10:20:51,746 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-08-05 10:20:51,747 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2019-08-05 10:20:51,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:20:51,748 INFO L225 Difference]: With dead ends: 12 [2019-08-05 10:20:51,748 INFO L226 Difference]: Without dead ends: 12 [2019-08-05 10:20:51,749 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-08-05 10:20:51,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-08-05 10:20:51,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2019-08-05 10:20:51,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-08-05 10:20:51,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2019-08-05 10:20:51,752 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2019-08-05 10:20:51,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:20:51,752 INFO L475 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2019-08-05 10:20:51,752 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-08-05 10:20:51,753 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-08-05 10:20:51,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-08-05 10:20:51,753 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:20:51,753 INFO L399 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1] [2019-08-05 10:20:51,754 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:20:51,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:20:51,754 INFO L82 PathProgramCache]: Analyzing trace with hash -502547343, now seen corresponding path program 3 times [2019-08-05 10:20:51,756 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:20:51,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:20:51,844 INFO L256 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 16 conjunts are in the unsatisfiable core [2019-08-05 10:20:51,850 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:20:51,952 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:20:52,063 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:20:52,086 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:20:52,086 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:20:52,086 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2019-08-05 10:20:52,087 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-08-05 10:20:52,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-08-05 10:20:52,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-08-05 10:20:52,088 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 7 states. [2019-08-05 10:20:52,264 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-08-05 10:20:52,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:20:52,370 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2019-08-05 10:20:52,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-08-05 10:20:52,371 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2019-08-05 10:20:52,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:20:52,372 INFO L225 Difference]: With dead ends: 14 [2019-08-05 10:20:52,372 INFO L226 Difference]: Without dead ends: 14 [2019-08-05 10:20:52,372 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-08-05 10:20:52,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-08-05 10:20:52,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2019-08-05 10:20:52,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-08-05 10:20:52,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-08-05 10:20:52,376 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2019-08-05 10:20:52,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:20:52,377 INFO L475 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-08-05 10:20:52,377 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-08-05 10:20:52,377 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-08-05 10:20:52,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-08-05 10:20:52,378 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:20:52,378 INFO L399 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1] [2019-08-05 10:20:52,378 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:20:52,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:20:52,378 INFO L82 PathProgramCache]: Analyzing trace with hash -1911584254, now seen corresponding path program 4 times [2019-08-05 10:20:52,380 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:20:52,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:20:52,476 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 25 conjunts are in the unsatisfiable core [2019-08-05 10:20:52,489 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:20:52,525 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:20:52,698 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:20:52,762 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:20:52,763 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:20:52,765 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:20:52,767 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:20:52,769 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:20:52,770 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:20:54,391 WARN L188 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2019-08-05 10:20:54,395 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-08-05 10:20:54,785 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2019-08-05 10:20:54,792 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:20:54,834 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:20:54,834 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:20:54,834 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2019-08-05 10:20:54,835 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-08-05 10:20:54,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-08-05 10:20:54,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-08-05 10:20:54,835 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 9 states. [2019-08-05 10:20:57,000 WARN L188 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 54 [2019-08-05 10:20:57,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:20:57,110 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2019-08-05 10:20:57,111 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-08-05 10:20:57,111 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 12 [2019-08-05 10:20:57,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:20:57,111 INFO L225 Difference]: With dead ends: 15 [2019-08-05 10:20:57,112 INFO L226 Difference]: Without dead ends: 15 [2019-08-05 10:20:57,112 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-08-05 10:20:57,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-08-05 10:20:57,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-08-05 10:20:57,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-08-05 10:20:57,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2019-08-05 10:20:57,115 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 12 [2019-08-05 10:20:57,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:20:57,115 INFO L475 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2019-08-05 10:20:57,115 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-08-05 10:20:57,115 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2019-08-05 10:20:57,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-08-05 10:20:57,116 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:20:57,116 INFO L399 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1] [2019-08-05 10:20:57,117 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:20:57,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:20:57,117 INFO L82 PathProgramCache]: Analyzing trace with hash 1213609811, now seen corresponding path program 5 times [2019-08-05 10:20:57,118 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:20:57,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:20:57,205 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 11 conjunts are in the unsatisfiable core [2019-08-05 10:20:57,208 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:20:57,299 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:20:57,306 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:20:57,407 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-08-05 10:20:57,407 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:20:57,408 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2019-08-05 10:20:57,408 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 10:20:57,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 10:20:57,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-05 10:20:57,409 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 4 states. [2019-08-05 10:20:57,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:20:57,440 INFO L93 Difference]: Finished difference Result 4 states and 3 transitions. [2019-08-05 10:20:57,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-05 10:20:57,441 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-08-05 10:20:57,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:20:57,441 INFO L225 Difference]: With dead ends: 4 [2019-08-05 10:20:57,442 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 10:20:57,442 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 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 10:20:57,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 10:20:57,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 10:20:57,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 10:20:57,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 10:20:57,443 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-08-05 10:20:57,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:20:57,443 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 10:20:57,443 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 10:20:57,444 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 10:20:57,444 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 10:20:57,448 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 10:20:57 BoogieIcfgContainer [2019-08-05 10:20:57,449 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 10:20:57,451 INFO L168 Benchmark]: Toolchain (without parser) took 8838.87 ms. Allocated memory was 132.6 MB in the beginning and 195.6 MB in the end (delta: 62.9 MB). Free memory was 108.1 MB in the beginning and 52.1 MB in the end (delta: 56.0 MB). Peak memory consumption was 118.9 MB. Max. memory is 7.1 GB. [2019-08-05 10:20:57,451 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 132.6 MB. Free memory is still 109.8 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 10:20:57,452 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.88 ms. Allocated memory is still 132.6 MB. Free memory was 108.1 MB in the beginning and 106.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-08-05 10:20:57,453 INFO L168 Benchmark]: Boogie Preprocessor took 41.42 ms. Allocated memory is still 132.6 MB. Free memory was 106.4 MB in the beginning and 105.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-08-05 10:20:57,454 INFO L168 Benchmark]: RCFGBuilder took 898.52 ms. Allocated memory is still 132.6 MB. Free memory was 104.7 MB in the beginning and 70.9 MB in the end (delta: 33.8 MB). Peak memory consumption was 33.8 MB. Max. memory is 7.1 GB. [2019-08-05 10:20:57,455 INFO L168 Benchmark]: TraceAbstraction took 7854.17 ms. Allocated memory was 132.6 MB in the beginning and 195.6 MB in the end (delta: 62.9 MB). Free memory was 70.5 MB in the beginning and 52.1 MB in the end (delta: 18.4 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. [2019-08-05 10:20:57,459 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 0.20 ms. Allocated memory is still 132.6 MB. Free memory is still 109.8 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 39.88 ms. Allocated memory is still 132.6 MB. Free memory was 108.1 MB in the beginning and 106.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 41.42 ms. Allocated memory is still 132.6 MB. Free memory was 106.4 MB in the beginning and 105.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 898.52 ms. Allocated memory is still 132.6 MB. Free memory was 104.7 MB in the beginning and 70.9 MB in the end (delta: 33.8 MB). Peak memory consumption was 33.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7854.17 ms. Allocated memory was 132.6 MB in the beginning and 195.6 MB in the end (delta: 62.9 MB). Free memory was 70.5 MB in the beginning and 52.1 MB in the end (delta: 18.4 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 314]: 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, 7.7s OverallTime, 6 OverallIterations, 6 TraceHistogramMax, 3.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 18 SDtfs, 14 SDslu, 36 SDs, 0 SdLazy, 112 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=5, 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, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 48 ConstructedInterpolants, 8 QuantifiedInterpolants, 11391 SizeOfPredicates, 117 NumberOfNonLiveVariables, 1053 ConjunctsInSsa, 93 ConjunctsInUnsatCore, 6 InterpolantComputations, 1 PerfectInterpolantSequences, 35/70 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...