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/real-life/PricedTimedAutomata/u2b03_simple_broadcast_SAFE.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 10:11:30,029 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 10:11:30,032 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 10:11:30,045 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 10:11:30,045 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 10:11:30,046 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 10:11:30,048 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 10:11:30,050 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 10:11:30,052 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 10:11:30,053 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 10:11:30,054 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 10:11:30,054 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 10:11:30,054 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 10:11:30,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 10:11:30,057 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 10:11:30,060 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 10:11:30,061 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 10:11:30,062 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 10:11:30,066 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 10:11:30,069 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 10:11:30,072 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 10:11:30,073 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 10:11:30,074 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 10:11:30,075 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 10:11:30,077 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 10:11:30,078 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 10:11:30,078 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 10:11:30,079 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 10:11:30,079 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 10:11:30,080 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 10:11:30,080 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 10:11:30,081 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 10:11:30,082 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 10:11:30,083 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 10:11:30,084 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 10:11:30,084 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 10:11:30,084 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 10:11:30,085 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 10:11:30,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 10:11:30,086 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 10:11:30,086 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 10:11:30,112 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 10:11:30,130 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 10:11:30,133 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 10:11:30,135 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 10:11:30,136 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 10:11:30,136 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/PricedTimedAutomata/u2b03_simple_broadcast_SAFE.bpl [2019-08-05 10:11:30,137 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/PricedTimedAutomata/u2b03_simple_broadcast_SAFE.bpl' [2019-08-05 10:11:30,192 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 10:11:30,194 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 10:11:30,194 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 10:11:30,194 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 10:11:30,195 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 10:11:30,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "u2b03_simple_broadcast_SAFE.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:11:30" (1/1) ... [2019-08-05 10:11:30,225 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "u2b03_simple_broadcast_SAFE.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:11:30" (1/1) ... [2019-08-05 10:11:30,233 WARN L165 Inliner]: Program contained no entry procedure! [2019-08-05 10:11:30,234 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-08-05 10:11:30,234 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-08-05 10:11:30,236 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 10:11:30,237 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 10:11:30,237 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 10:11:30,237 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 10:11:30,249 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "u2b03_simple_broadcast_SAFE.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:11:30" (1/1) ... [2019-08-05 10:11:30,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "u2b03_simple_broadcast_SAFE.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:11:30" (1/1) ... [2019-08-05 10:11:30,251 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "u2b03_simple_broadcast_SAFE.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:11:30" (1/1) ... [2019-08-05 10:11:30,252 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "u2b03_simple_broadcast_SAFE.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:11:30" (1/1) ... [2019-08-05 10:11:30,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "u2b03_simple_broadcast_SAFE.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:11:30" (1/1) ... [2019-08-05 10:11:30,268 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "u2b03_simple_broadcast_SAFE.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:11:30" (1/1) ... [2019-08-05 10:11:30,272 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "u2b03_simple_broadcast_SAFE.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:11:30" (1/1) ... [2019-08-05 10:11:30,281 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 10:11:30,282 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 10:11:30,282 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 10:11:30,282 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 10:11:30,287 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "u2b03_simple_broadcast_SAFE.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:11:30" (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 10:11:30,358 INFO L130 BoogieDeclarations]: Found specification of procedure perform_resets [2019-08-05 10:11:30,358 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2019-08-05 10:11:30,358 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-05 10:11:30,359 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-05 10:11:30,359 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_reset_v [2019-08-05 10:11:30,480 WARN L731 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-08-05 10:11:31,296 INFO L275 CfgBuilder]: Using library mode [2019-08-05 10:11:31,299 INFO L283 CfgBuilder]: Removed 9 assume(true) statements. [2019-08-05 10:11:31,301 INFO L202 PluginConnector]: Adding new model u2b03_simple_broadcast_SAFE.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 10:11:31 BoogieIcfgContainer [2019-08-05 10:11:31,301 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 10:11:31,306 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 10:11:31,307 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 10:11:31,311 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 10:11:31,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "u2b03_simple_broadcast_SAFE.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:11:30" (1/2) ... [2019-08-05 10:11:31,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43a87988 and model type u2b03_simple_broadcast_SAFE.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 10:11:31, skipping insertion in model container [2019-08-05 10:11:31,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "u2b03_simple_broadcast_SAFE.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 10:11:31" (2/2) ... [2019-08-05 10:11:31,316 INFO L109 eAbstractionObserver]: Analyzing ICFG u2b03_simple_broadcast_SAFE.bpl [2019-08-05 10:11:31,326 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 10:11:31,336 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-08-05 10:11:31,355 INFO L252 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-08-05 10:11:31,387 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 10:11:31,388 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 10:11:31,389 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 10:11:31,389 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 10:11:31,389 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 10:11:31,389 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 10:11:31,389 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 10:11:31,389 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 10:11:31,390 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 10:11:31,405 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-08-05 10:11:31,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-08-05 10:11:31,414 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:11:31,415 INFO L399 BasicCegarLoop]: trace histogram [1, 1] [2019-08-05 10:11:31,418 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT, mainErr1ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:11:31,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:11:31,424 INFO L82 PathProgramCache]: Analyzing trace with hash 4777, now seen corresponding path program 1 times [2019-08-05 10:11:31,478 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:11:31,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:11:31,511 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2019-08-05 10:11:31,515 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:11:31,574 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 10:11:31,577 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 10:11:31,577 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-08-05 10:11:31,581 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 10:11:31,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 10:11:31,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 10:11:31,595 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2019-08-05 10:11:31,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:11:31,682 INFO L93 Difference]: Finished difference Result 27 states and 41 transitions. [2019-08-05 10:11:31,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 10:11:31,689 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2019-08-05 10:11:31,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:11:31,701 INFO L225 Difference]: With dead ends: 27 [2019-08-05 10:11:31,701 INFO L226 Difference]: Without dead ends: 23 [2019-08-05 10:11:31,703 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 10:11:31,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-08-05 10:11:31,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2019-08-05 10:11:31,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-08-05 10:11:31,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 27 transitions. [2019-08-05 10:11:31,766 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 27 transitions. Word has length 2 [2019-08-05 10:11:31,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:11:31,766 INFO L475 AbstractCegarLoop]: Abstraction has 21 states and 27 transitions. [2019-08-05 10:11:31,766 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 10:11:31,767 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2019-08-05 10:11:31,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-08-05 10:11:31,767 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:11:31,768 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-08-05 10:11:31,768 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONASSERT, mainErr1ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:11:31,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:11:31,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1667068421, now seen corresponding path program 1 times [2019-08-05 10:11:31,776 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:11:31,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:11:31,805 INFO L256 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2019-08-05 10:11:31,809 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:11:31,897 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:11:31,897 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 10:11:31,897 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-08-05 10:11:31,901 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 10:11:31,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 10:11:31,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 10:11:31,902 INFO L87 Difference]: Start difference. First operand 21 states and 27 transitions. Second operand 3 states. [2019-08-05 10:11:31,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:11:31,957 INFO L93 Difference]: Finished difference Result 29 states and 36 transitions. [2019-08-05 10:11:31,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 10:11:31,958 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-08-05 10:11:31,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:11:31,959 INFO L225 Difference]: With dead ends: 29 [2019-08-05 10:11:31,959 INFO L226 Difference]: Without dead ends: 29 [2019-08-05 10:11:31,960 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 1 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 10:11:31,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-08-05 10:11:31,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 21. [2019-08-05 10:11:31,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-08-05 10:11:31,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2019-08-05 10:11:31,965 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 26 transitions. Word has length 9 [2019-08-05 10:11:31,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:11:31,966 INFO L475 AbstractCegarLoop]: Abstraction has 21 states and 26 transitions. [2019-08-05 10:11:31,966 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 10:11:31,966 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2019-08-05 10:11:31,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-08-05 10:11:31,967 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:11:31,967 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-08-05 10:11:31,967 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONASSERT, mainErr1ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:11:31,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:11:31,968 INFO L82 PathProgramCache]: Analyzing trace with hash -2024309579, now seen corresponding path program 1 times [2019-08-05 10:11:31,970 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:11:31,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:11:31,986 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2019-08-05 10:11:31,987 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:11:32,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:11:32,021 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 10:11:32,021 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-08-05 10:11:32,022 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 10:11:32,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 10:11:32,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 10:11:32,024 INFO L87 Difference]: Start difference. First operand 21 states and 26 transitions. Second operand 3 states. [2019-08-05 10:11:32,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:11:32,074 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2019-08-05 10:11:32,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 10:11:32,074 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-08-05 10:11:32,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:11:32,075 INFO L225 Difference]: With dead ends: 27 [2019-08-05 10:11:32,075 INFO L226 Difference]: Without dead ends: 27 [2019-08-05 10:11:32,076 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 1 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 10:11:32,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-08-05 10:11:32,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 21. [2019-08-05 10:11:32,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-08-05 10:11:32,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2019-08-05 10:11:32,080 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 10 [2019-08-05 10:11:32,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:11:32,081 INFO L475 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2019-08-05 10:11:32,081 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 10:11:32,081 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2019-08-05 10:11:32,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-08-05 10:11:32,081 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:11:32,081 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-08-05 10:11:32,082 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONASSERT, mainErr1ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:11:32,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:11:32,082 INFO L82 PathProgramCache]: Analyzing trace with hash -1030323350, now seen corresponding path program 1 times [2019-08-05 10:11:32,085 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:11:32,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:11:32,098 INFO L256 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2019-08-05 10:11:32,099 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:11:32,136 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:11:32,136 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 10:11:32,137 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-08-05 10:11:32,137 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 10:11:32,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 10:11:32,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 10:11:32,138 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 3 states. [2019-08-05 10:11:32,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:11:32,172 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2019-08-05 10:11:32,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 10:11:32,173 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-08-05 10:11:32,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:11:32,173 INFO L225 Difference]: With dead ends: 25 [2019-08-05 10:11:32,173 INFO L226 Difference]: Without dead ends: 25 [2019-08-05 10:11:32,174 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 1 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 10:11:32,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-08-05 10:11:32,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 21. [2019-08-05 10:11:32,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-08-05 10:11:32,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2019-08-05 10:11:32,178 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 11 [2019-08-05 10:11:32,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:11:32,178 INFO L475 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2019-08-05 10:11:32,178 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 10:11:32,178 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2019-08-05 10:11:32,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-08-05 10:11:32,179 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:11:32,179 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-08-05 10:11:32,180 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONASSERT, mainErr1ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:11:32,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:11:32,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1822877872, now seen corresponding path program 1 times [2019-08-05 10:11:32,183 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:11:32,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:11:32,200 INFO L256 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 5 conjunts are in the unsatisfiable core [2019-08-05 10:11:32,201 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:11:32,244 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:11:32,320 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 10:11:32,320 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:11:32,320 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2019-08-05 10:11:32,321 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 10:11:32,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 10:11:32,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-05 10:11:32,322 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand 4 states. [2019-08-05 10:11:32,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:11:32,538 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2019-08-05 10:11:32,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-08-05 10:11:32,539 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-08-05 10:11:32,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:11:32,541 INFO L225 Difference]: With dead ends: 38 [2019-08-05 10:11:32,541 INFO L226 Difference]: Without dead ends: 38 [2019-08-05 10:11:32,542 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 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 10:11:32,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-08-05 10:11:32,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 31. [2019-08-05 10:11:32,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-08-05 10:11:32,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2019-08-05 10:11:32,547 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 12 [2019-08-05 10:11:32,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:11:32,547 INFO L475 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2019-08-05 10:11:32,547 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 10:11:32,547 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2019-08-05 10:11:32,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-08-05 10:11:32,548 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:11:32,548 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-08-05 10:11:32,548 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONASSERT, mainErr1ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:11:32,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:11:32,549 INFO L82 PathProgramCache]: Analyzing trace with hash 1383871358, now seen corresponding path program 1 times [2019-08-05 10:11:32,551 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:11:32,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:11:32,571 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjunts are in the unsatisfiable core [2019-08-05 10:11:32,572 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:11:32,613 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:11:32,613 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 10:11:32,614 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-08-05 10:11:32,614 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 10:11:32,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 10:11:32,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 10:11:32,615 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand 3 states. [2019-08-05 10:11:32,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:11:32,660 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2019-08-05 10:11:32,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 10:11:32,664 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-08-05 10:11:32,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:11:32,665 INFO L225 Difference]: With dead ends: 23 [2019-08-05 10:11:32,665 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 10:11:32,665 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 1 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 10:11:32,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 10:11:32,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 10:11:32,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 10:11:32,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 10:11:32,667 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2019-08-05 10:11:32,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:11:32,667 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 10:11:32,667 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 10:11:32,667 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 10:11:32,667 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 10:11:32,672 INFO L202 PluginConnector]: Adding new model u2b03_simple_broadcast_SAFE.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 10:11:32 BoogieIcfgContainer [2019-08-05 10:11:32,672 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 10:11:32,674 INFO L168 Benchmark]: Toolchain (without parser) took 2480.28 ms. Allocated memory was 142.1 MB in the beginning and 176.2 MB in the end (delta: 34.1 MB). Free memory was 111.2 MB in the beginning and 112.2 MB in the end (delta: -1.0 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. [2019-08-05 10:11:32,676 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 142.1 MB. Free memory was 112.9 MB in the beginning and 112.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-05 10:11:32,676 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.34 ms. Allocated memory is still 142.1 MB. Free memory was 111.2 MB in the beginning and 109.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-08-05 10:11:32,677 INFO L168 Benchmark]: Boogie Preprocessor took 44.51 ms. Allocated memory is still 142.1 MB. Free memory was 109.3 MB in the beginning and 107.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-08-05 10:11:32,678 INFO L168 Benchmark]: RCFGBuilder took 1019.04 ms. Allocated memory is still 142.1 MB. Free memory was 107.9 MB in the beginning and 79.9 MB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. [2019-08-05 10:11:32,680 INFO L168 Benchmark]: TraceAbstraction took 1365.93 ms. Allocated memory was 142.1 MB in the beginning and 176.2 MB in the end (delta: 34.1 MB). Free memory was 79.6 MB in the beginning and 112.2 MB in the end (delta: -32.6 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. [2019-08-05 10:11:32,685 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 142.1 MB. Free memory was 112.9 MB in the beginning and 112.7 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 42.34 ms. Allocated memory is still 142.1 MB. Free memory was 111.2 MB in the beginning and 109.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 44.51 ms. Allocated memory is still 142.1 MB. Free memory was 109.3 MB in the beginning and 107.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1019.04 ms. Allocated memory is still 142.1 MB. Free memory was 107.9 MB in the beginning and 79.9 MB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1365.93 ms. Allocated memory was 142.1 MB in the beginning and 176.2 MB in the end (delta: 34.1 MB). Free memory was 79.6 MB in the beginning and 112.2 MB in the end (delta: -32.6 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 88]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 131]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 2 error locations. SAFE Result, 1.2s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 103 SDtfs, 59 SDslu, 73 SDs, 0 SdLazy, 54 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 46 SyntacticMatches, 4 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred 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, 27 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 1411 SizeOfPredicates, 7 NumberOfNonLiveVariables, 195 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 12/13 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...