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/concurrent/concurrentBoogie/fork_multiple_parameter.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 09:52:05,443 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 09:52:05,448 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 09:52:05,460 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 09:52:05,460 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 09:52:05,461 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 09:52:05,463 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 09:52:05,467 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 09:52:05,469 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 09:52:05,470 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 09:52:05,473 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 09:52:05,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 09:52:05,474 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 09:52:05,478 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 09:52:05,479 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 09:52:05,480 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 09:52:05,482 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 09:52:05,483 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 09:52:05,485 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 09:52:05,489 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 09:52:05,492 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 09:52:05,494 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 09:52:05,495 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 09:52:05,497 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 09:52:05,500 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 09:52:05,500 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 09:52:05,500 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 09:52:05,502 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 09:52:05,503 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 09:52:05,507 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 09:52:05,507 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 09:52:05,508 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 09:52:05,512 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 09:52:05,513 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 09:52:05,514 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 09:52:05,514 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 09:52:05,515 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 09:52:05,516 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 09:52:05,516 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 09:52:05,517 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 09:52:05,519 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 09:52:05,548 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 09:52:05,560 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 09:52:05,563 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 09:52:05,565 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 09:52:05,565 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 09:52:05,566 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/concurrentBoogie/fork_multiple_parameter.bpl [2019-08-05 09:52:05,566 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/concurrentBoogie/fork_multiple_parameter.bpl' [2019-08-05 09:52:05,596 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 09:52:05,597 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 09:52:05,598 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 09:52:05,598 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 09:52:05,599 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 09:52:05,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "fork_multiple_parameter.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:05" (1/1) ... [2019-08-05 09:52:05,625 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "fork_multiple_parameter.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:05" (1/1) ... [2019-08-05 09:52:05,634 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 09:52:05,635 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 09:52:05,635 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 09:52:05,635 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 09:52:05,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "fork_multiple_parameter.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:05" (1/1) ... [2019-08-05 09:52:05,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "fork_multiple_parameter.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:05" (1/1) ... [2019-08-05 09:52:05,647 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "fork_multiple_parameter.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:05" (1/1) ... [2019-08-05 09:52:05,647 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "fork_multiple_parameter.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:05" (1/1) ... [2019-08-05 09:52:05,653 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "fork_multiple_parameter.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:05" (1/1) ... [2019-08-05 09:52:05,654 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "fork_multiple_parameter.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:05" (1/1) ... [2019-08-05 09:52:05,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "fork_multiple_parameter.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:05" (1/1) ... [2019-08-05 09:52:05,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 09:52:05,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 09:52:05,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 09:52:05,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 09:52:05,658 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "fork_multiple_parameter.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:05" (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 09:52:05,734 INFO L130 BoogieDeclarations]: Found specification of procedure add [2019-08-05 09:52:05,734 INFO L138 BoogieDeclarations]: Found implementation of procedure add [2019-08-05 09:52:05,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 09:52:05,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 09:52:05,736 WARN L201 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-08-05 09:52:06,027 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 09:52:06,027 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 09:52:06,033 INFO L202 PluginConnector]: Adding new model fork_multiple_parameter.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 09:52:06 BoogieIcfgContainer [2019-08-05 09:52:06,033 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 09:52:06,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 09:52:06,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 09:52:06,038 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 09:52:06,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "fork_multiple_parameter.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:05" (1/2) ... [2019-08-05 09:52:06,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@370db3b3 and model type fork_multiple_parameter.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 09:52:06, skipping insertion in model container [2019-08-05 09:52:06,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "fork_multiple_parameter.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 09:52:06" (2/2) ... [2019-08-05 09:52:06,041 INFO L109 eAbstractionObserver]: Analyzing ICFG fork_multiple_parameter.bpl [2019-08-05 09:52:06,070 WARN L317 ript$VariableManager]: TermVariabe Thread0_add_num1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-08-05 09:52:06,071 WARN L317 ript$VariableManager]: TermVariabe Thread0_add_num1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-08-05 09:52:06,071 WARN L317 ript$VariableManager]: TermVariabe Thread0_add_num1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-08-05 09:52:06,072 WARN L317 ript$VariableManager]: TermVariabe Thread0_add_num2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-08-05 09:52:06,072 WARN L317 ript$VariableManager]: TermVariabe Thread0_add_sum not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-08-05 09:52:06,101 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 09:52:06,108 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-08-05 09:52:06,122 INFO L252 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-08-05 09:52:06,143 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 09:52:06,144 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 09:52:06,144 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 09:52:06,144 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 09:52:06,144 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 09:52:06,144 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 09:52:06,144 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 09:52:06,145 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 09:52:06,145 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 09:52:06,154 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 14places, 12 transitions [2019-08-05 09:52:06,163 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 17 states. [2019-08-05 09:52:06,164 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-08-05 09:52:06,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-08-05 09:52:06,172 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:52:06,172 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-08-05 09:52:06,175 INFO L418 AbstractCegarLoop]: === Iteration 1 === [addErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, addErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:52:06,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:52:06,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1444314, now seen corresponding path program 1 times [2019-08-05 09:52:06,229 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:52:06,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:52:06,262 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 5 conjunts are in the unsatisfiable core [2019-08-05 09:52:06,267 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:52:06,409 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 09:52:06,413 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 09:52:06,413 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-08-05 09:52:06,418 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 09:52:06,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 09:52:06,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-05 09:52:06,442 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 4 states. [2019-08-05 09:52:06,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 09:52:06,584 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2019-08-05 09:52:06,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-08-05 09:52:06,586 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-08-05 09:52:06,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 09:52:06,596 INFO L225 Difference]: With dead ends: 15 [2019-08-05 09:52:06,596 INFO L226 Difference]: Without dead ends: 13 [2019-08-05 09:52:06,598 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 09:52:06,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-08-05 09:52:06,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-08-05 09:52:06,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-08-05 09:52:06,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2019-08-05 09:52:06,633 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 4 [2019-08-05 09:52:06,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 09:52:06,633 INFO L475 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2019-08-05 09:52:06,634 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 09:52:06,634 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2019-08-05 09:52:06,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-08-05 09:52:06,635 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:52:06,635 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-08-05 09:52:06,635 INFO L418 AbstractCegarLoop]: === Iteration 2 === [addErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, addErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:52:06,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:52:06,636 INFO L82 PathProgramCache]: Analyzing trace with hash 1886899208, now seen corresponding path program 1 times [2019-08-05 09:52:06,637 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:52:06,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:52:06,650 WARN L254 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 13 conjunts are in the unsatisfiable core [2019-08-05 09:52:06,651 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:52:06,842 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 09:52:06,842 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 09:52:06,842 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-08-05 09:52:06,845 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-08-05 09:52:06,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-08-05 09:52:06,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-08-05 09:52:06,846 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand 8 states. [2019-08-05 09:52:07,144 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2019-08-05 09:52:07,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 09:52:07,395 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2019-08-05 09:52:07,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-08-05 09:52:07,396 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2019-08-05 09:52:07,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 09:52:07,396 INFO L225 Difference]: With dead ends: 16 [2019-08-05 09:52:07,397 INFO L226 Difference]: Without dead ends: 11 [2019-08-05 09:52:07,399 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2019-08-05 09:52:07,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-08-05 09:52:07,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-08-05 09:52:07,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-08-05 09:52:07,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2019-08-05 09:52:07,402 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2019-08-05 09:52:07,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 09:52:07,402 INFO L475 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2019-08-05 09:52:07,403 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-08-05 09:52:07,403 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-08-05 09:52:07,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-08-05 09:52:07,403 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:52:07,404 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-08-05 09:52:07,404 INFO L418 AbstractCegarLoop]: === Iteration 3 === [addErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, addErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:52:07,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:52:07,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1876722218, now seen corresponding path program 2 times [2019-08-05 09:52:07,406 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:52:07,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:52:07,416 WARN L254 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 13 conjunts are in the unsatisfiable core [2019-08-05 09:52:07,418 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:52:07,632 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 09:52:07,632 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 09:52:07,633 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-08-05 09:52:07,634 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-08-05 09:52:07,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-08-05 09:52:07,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-08-05 09:52:07,635 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 8 states. [2019-08-05 09:52:07,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 09:52:07,793 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2019-08-05 09:52:07,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-08-05 09:52:07,794 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2019-08-05 09:52:07,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 09:52:07,795 INFO L225 Difference]: With dead ends: 15 [2019-08-05 09:52:07,795 INFO L226 Difference]: Without dead ends: 10 [2019-08-05 09:52:07,796 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2019-08-05 09:52:07,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-08-05 09:52:07,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-08-05 09:52:07,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-08-05 09:52:07,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2019-08-05 09:52:07,799 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 9 [2019-08-05 09:52:07,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 09:52:07,799 INFO L475 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2019-08-05 09:52:07,800 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-08-05 09:52:07,800 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2019-08-05 09:52:07,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-08-05 09:52:07,800 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:52:07,800 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-08-05 09:52:07,801 INFO L418 AbstractCegarLoop]: === Iteration 4 === [addErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, addErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:52:07,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:52:07,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1599665918, now seen corresponding path program 3 times [2019-08-05 09:52:07,802 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:52:07,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:52:07,812 WARN L254 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 13 conjunts are in the unsatisfiable core [2019-08-05 09:52:07,814 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:52:08,216 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 09:52:08,217 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 09:52:08,218 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-08-05 09:52:08,218 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-08-05 09:52:08,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-08-05 09:52:08,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-08-05 09:52:08,219 INFO L87 Difference]: Start difference. First operand 10 states and 9 transitions. Second operand 8 states. [2019-08-05 09:52:08,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 09:52:08,383 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2019-08-05 09:52:08,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-08-05 09:52:08,383 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2019-08-05 09:52:08,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 09:52:08,383 INFO L225 Difference]: With dead ends: 9 [2019-08-05 09:52:08,384 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 09:52:08,384 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2019-08-05 09:52:08,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 09:52:08,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 09:52:08,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 09:52:08,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 09:52:08,385 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2019-08-05 09:52:08,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 09:52:08,385 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 09:52:08,386 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-08-05 09:52:08,386 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 09:52:08,386 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 09:52:08,389 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-08-05 09:52:08,391 INFO L202 PluginConnector]: Adding new model fork_multiple_parameter.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 09:52:08 BasicIcfg [2019-08-05 09:52:08,391 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 09:52:08,393 INFO L168 Benchmark]: Toolchain (without parser) took 2795.15 ms. Allocated memory was 132.6 MB in the beginning and 172.0 MB in the end (delta: 39.3 MB). Free memory was 109.0 MB in the beginning and 99.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 48.8 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:08,395 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 132.6 MB. Free memory was 110.2 MB in the beginning and 110.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-05 09:52:08,396 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.11 ms. Allocated memory is still 132.6 MB. Free memory was 109.0 MB in the beginning and 107.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:08,397 INFO L168 Benchmark]: Boogie Preprocessor took 21.94 ms. Allocated memory is still 132.6 MB. Free memory was 107.3 MB in the beginning and 106.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:08,398 INFO L168 Benchmark]: RCFGBuilder took 376.20 ms. Allocated memory is still 132.6 MB. Free memory was 106.1 MB in the beginning and 97.5 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:08,399 INFO L168 Benchmark]: TraceAbstraction took 2356.45 ms. Allocated memory was 132.6 MB in the beginning and 172.0 MB in the end (delta: 39.3 MB). Free memory was 97.1 MB in the beginning and 99.5 MB in the end (delta: -2.4 MB). Peak memory consumption was 36.9 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:08,403 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 0.22 ms. Allocated memory is still 132.6 MB. Free memory was 110.2 MB in the beginning and 110.0 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 36.11 ms. Allocated memory is still 132.6 MB. Free memory was 109.0 MB in the beginning and 107.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 21.94 ms. Allocated memory is still 132.6 MB. Free memory was 107.3 MB in the beginning and 106.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 376.20 ms. Allocated memory is still 132.6 MB. Free memory was 106.1 MB in the beginning and 97.5 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2356.45 ms. Allocated memory was 132.6 MB in the beginning and 172.0 MB in the end (delta: 39.3 MB). Free memory was 97.1 MB in the beginning and 99.5 MB in the end (delta: -2.4 MB). Peak memory consumption was 36.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 32]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 25]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 32]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 19 locations, 3 error locations. SAFE Result, 2.2s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 29 SDtfs, 66 SDslu, 39 SDs, 0 SdLazy, 72 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 1019 SizeOfPredicates, 13 NumberOfNonLiveVariables, 85 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...