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/s3_srvr_2.cil.c_16.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-04 21:38:23,322 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-04 21:38:23,324 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-04 21:38:23,336 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-04 21:38:23,336 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-04 21:38:23,338 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-04 21:38:23,339 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-04 21:38:23,341 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-04 21:38:23,343 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-04 21:38:23,344 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-04 21:38:23,345 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-04 21:38:23,346 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-04 21:38:23,346 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-04 21:38:23,347 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-04 21:38:23,348 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-04 21:38:23,350 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-04 21:38:23,350 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-04 21:38:23,352 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-04 21:38:23,354 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-04 21:38:23,356 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-04 21:38:23,358 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-04 21:38:23,360 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-04 21:38:23,361 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-04 21:38:23,362 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-04 21:38:23,365 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-04 21:38:23,369 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-04 21:38:23,370 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-04 21:38:23,370 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-04 21:38:23,371 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-04 21:38:23,373 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-04 21:38:23,373 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-04 21:38:23,374 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-04 21:38:23,374 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-04 21:38:23,375 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-04 21:38:23,376 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-04 21:38:23,377 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-04 21:38:23,408 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-04 21:38:23,421 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-04 21:38:23,424 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-04 21:38:23,426 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-04 21:38:23,427 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-04 21:38:23,427 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_2.cil.c_16.bpl [2019-08-04 21:38:23,428 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_2.cil.c_16.bpl' [2019-08-04 21:38:23,489 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-04 21:38:23,491 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-04 21:38:23,492 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-04 21:38:23,492 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-04 21:38:23,492 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-04 21:38:23,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "s3_srvr_2.cil.c_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:38:23" (1/1) ... [2019-08-04 21:38:23,523 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "s3_srvr_2.cil.c_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:38:23" (1/1) ... [2019-08-04 21:38:23,531 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-04 21:38:23,532 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-04 21:38:23,532 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-04 21:38:23,532 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-04 21:38:23,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "s3_srvr_2.cil.c_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:38:23" (1/1) ... [2019-08-04 21:38:23,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "s3_srvr_2.cil.c_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:38:23" (1/1) ... [2019-08-04 21:38:23,547 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "s3_srvr_2.cil.c_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:38:23" (1/1) ... [2019-08-04 21:38:23,547 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "s3_srvr_2.cil.c_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:38:23" (1/1) ... [2019-08-04 21:38:23,556 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "s3_srvr_2.cil.c_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:38:23" (1/1) ... [2019-08-04 21:38:23,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "s3_srvr_2.cil.c_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:38:23" (1/1) ... [2019-08-04 21:38:23,560 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "s3_srvr_2.cil.c_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:38:23" (1/1) ... [2019-08-04 21:38:23,564 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-04 21:38:23,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-04 21:38:23,565 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-04 21:38:23,565 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-04 21:38:23,566 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "s3_srvr_2.cil.c_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:38:23" (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 [2019-08-04 21:38:23,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-04 21:38:23,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-04 21:38:24,228 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-04 21:38:24,228 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-04 21:38:24,229 INFO L202 PluginConnector]: Adding new model s3_srvr_2.cil.c_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.08 09:38:24 BoogieIcfgContainer [2019-08-04 21:38:24,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-04 21:38:24,233 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-04 21:38:24,233 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-04 21:38:24,240 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-04 21:38:24,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "s3_srvr_2.cil.c_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:38:23" (1/2) ... [2019-08-04 21:38:24,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63a0fac1 and model type s3_srvr_2.cil.c_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.08 09:38:24, skipping insertion in model container [2019-08-04 21:38:24,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "s3_srvr_2.cil.c_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.08 09:38:24" (2/2) ... [2019-08-04 21:38:24,244 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_2.cil.c_16.bpl [2019-08-04 21:38:24,254 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-04 21:38:24,264 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-04 21:38:24,281 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-04 21:38:24,304 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-04 21:38:24,304 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-04 21:38:24,305 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-04 21:38:24,305 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-04 21:38:24,305 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-04 21:38:24,305 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-04 21:38:24,305 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-04 21:38:24,306 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-04 21:38:24,306 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-04 21:38:24,320 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-08-04 21:38:24,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-08-04 21:38:24,328 INFO L391 BasicCegarLoop]: Found error trace [2019-08-04 21:38:24,329 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-08-04 21:38:24,331 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-04 21:38:24,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-04 21:38:24,337 INFO L82 PathProgramCache]: Analyzing trace with hash 212232665, now seen corresponding path program 1 times [2019-08-04 21:38:24,385 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-04 21:38:24,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-04 21:38:24,481 INFO L256 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 2 conjunts are in the unsatisfiable core [2019-08-04 21:38:24,486 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-04 21:38:24,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-04 21:38:24,531 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-04 21:38:24,531 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-08-04 21:38:24,537 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-04 21:38:24,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-04 21:38:24,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-04 21:38:24,554 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 3 states. [2019-08-04 21:38:24,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-04 21:38:24,628 INFO L93 Difference]: Finished difference Result 17 states and 24 transitions. [2019-08-04 21:38:24,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-04 21:38:24,629 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-08-04 21:38:24,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-04 21:38:24,641 INFO L225 Difference]: With dead ends: 17 [2019-08-04 21:38:24,642 INFO L226 Difference]: Without dead ends: 17 [2019-08-04 21:38:24,644 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-04 21:38:24,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-08-04 21:38:24,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-08-04 21:38:24,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-08-04 21:38:24,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 24 transitions. [2019-08-04 21:38:24,706 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 24 transitions. Word has length 8 [2019-08-04 21:38:24,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-04 21:38:24,707 INFO L475 AbstractCegarLoop]: Abstraction has 17 states and 24 transitions. [2019-08-04 21:38:24,707 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-04 21:38:24,709 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 24 transitions. [2019-08-04 21:38:24,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-08-04 21:38:24,709 INFO L391 BasicCegarLoop]: Found error trace [2019-08-04 21:38:24,710 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-08-04 21:38:24,710 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-04 21:38:24,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-04 21:38:24,711 INFO L82 PathProgramCache]: Analyzing trace with hash -250815183, now seen corresponding path program 1 times [2019-08-04 21:38:24,712 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-04 21:38:24,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-04 21:38:24,790 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 3 conjunts are in the unsatisfiable core [2019-08-04 21:38:24,792 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-04 21:38:24,808 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-04 21:38:24,808 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-04 21:38:24,809 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-08-04 21:38:24,811 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-04 21:38:24,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-04 21:38:24,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-04 21:38:24,811 INFO L87 Difference]: Start difference. First operand 17 states and 24 transitions. Second operand 3 states. [2019-08-04 21:38:24,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-04 21:38:24,977 INFO L93 Difference]: Finished difference Result 21 states and 28 transitions. [2019-08-04 21:38:24,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-04 21:38:24,978 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-08-04 21:38:24,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-04 21:38:24,979 INFO L225 Difference]: With dead ends: 21 [2019-08-04 21:38:24,979 INFO L226 Difference]: Without dead ends: 21 [2019-08-04 21:38:24,980 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-04 21:38:24,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-08-04 21:38:24,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-08-04 21:38:24,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-08-04 21:38:24,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 28 transitions. [2019-08-04 21:38:24,985 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 28 transitions. Word has length 11 [2019-08-04 21:38:24,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-04 21:38:24,985 INFO L475 AbstractCegarLoop]: Abstraction has 21 states and 28 transitions. [2019-08-04 21:38:24,985 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-04 21:38:24,986 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2019-08-04 21:38:24,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-08-04 21:38:24,986 INFO L391 BasicCegarLoop]: Found error trace [2019-08-04 21:38:24,987 INFO L399 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-08-04 21:38:24,987 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-04 21:38:24,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-04 21:38:24,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1947459099, now seen corresponding path program 1 times [2019-08-04 21:38:24,988 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-04 21:38:25,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-04 21:38:25,040 INFO L256 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 2 conjunts are in the unsatisfiable core [2019-08-04 21:38:25,042 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-04 21:38:25,077 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-08-04 21:38:25,078 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-04 21:38:25,078 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-08-04 21:38:25,078 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-04 21:38:25,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-04 21:38:25,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-04 21:38:25,079 INFO L87 Difference]: Start difference. First operand 21 states and 28 transitions. Second operand 3 states. [2019-08-04 21:38:25,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-04 21:38:25,180 INFO L93 Difference]: Finished difference Result 33 states and 45 transitions. [2019-08-04 21:38:25,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-04 21:38:25,185 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-08-04 21:38:25,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-04 21:38:25,187 INFO L225 Difference]: With dead ends: 33 [2019-08-04 21:38:25,187 INFO L226 Difference]: Without dead ends: 33 [2019-08-04 21:38:25,187 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-04 21:38:25,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-08-04 21:38:25,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-08-04 21:38:25,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-08-04 21:38:25,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 45 transitions. [2019-08-04 21:38:25,194 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 45 transitions. Word has length 15 [2019-08-04 21:38:25,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-04 21:38:25,195 INFO L475 AbstractCegarLoop]: Abstraction has 33 states and 45 transitions. [2019-08-04 21:38:25,195 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-04 21:38:25,195 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 45 transitions. [2019-08-04 21:38:25,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-08-04 21:38:25,196 INFO L391 BasicCegarLoop]: Found error trace [2019-08-04 21:38:25,196 INFO L399 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-08-04 21:38:25,196 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-04 21:38:25,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-04 21:38:25,197 INFO L82 PathProgramCache]: Analyzing trace with hash 177840891, now seen corresponding path program 1 times [2019-08-04 21:38:25,198 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-04 21:38:25,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-04 21:38:25,269 INFO L256 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 2 conjunts are in the unsatisfiable core [2019-08-04 21:38:25,274 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-04 21:38:25,296 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-08-04 21:38:25,296 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-04 21:38:25,296 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-08-04 21:38:25,297 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-04 21:38:25,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-04 21:38:25,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-04 21:38:25,298 INFO L87 Difference]: Start difference. First operand 33 states and 45 transitions. Second operand 3 states. [2019-08-04 21:38:25,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-04 21:38:25,403 INFO L93 Difference]: Finished difference Result 51 states and 65 transitions. [2019-08-04 21:38:25,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-04 21:38:25,404 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-08-04 21:38:25,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-04 21:38:25,405 INFO L225 Difference]: With dead ends: 51 [2019-08-04 21:38:25,405 INFO L226 Difference]: Without dead ends: 51 [2019-08-04 21:38:25,406 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-04 21:38:25,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-08-04 21:38:25,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 48. [2019-08-04 21:38:25,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-08-04 21:38:25,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 60 transitions. [2019-08-04 21:38:25,418 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 60 transitions. Word has length 20 [2019-08-04 21:38:25,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-04 21:38:25,418 INFO L475 AbstractCegarLoop]: Abstraction has 48 states and 60 transitions. [2019-08-04 21:38:25,418 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-04 21:38:25,418 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 60 transitions. [2019-08-04 21:38:25,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-08-04 21:38:25,421 INFO L391 BasicCegarLoop]: Found error trace [2019-08-04 21:38:25,421 INFO L399 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-08-04 21:38:25,424 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-04 21:38:25,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-04 21:38:25,424 INFO L82 PathProgramCache]: Analyzing trace with hash -1373628612, now seen corresponding path program 1 times [2019-08-04 21:38:25,425 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-04 21:38:25,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-04 21:38:25,487 INFO L256 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 4 conjunts are in the unsatisfiable core [2019-08-04 21:38:25,492 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-04 21:38:25,543 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:38:25,610 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-04 21:38:25,610 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-04 21:38:25,610 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-08-04 21:38:25,610 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-08-04 21:38:25,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-08-04 21:38:25,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-08-04 21:38:25,611 INFO L87 Difference]: Start difference. First operand 48 states and 60 transitions. Second operand 5 states. [2019-08-04 21:38:25,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-04 21:38:25,741 INFO L93 Difference]: Finished difference Result 72 states and 89 transitions. [2019-08-04 21:38:25,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-08-04 21:38:25,743 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2019-08-04 21:38:25,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-04 21:38:25,745 INFO L225 Difference]: With dead ends: 72 [2019-08-04 21:38:25,745 INFO L226 Difference]: Without dead ends: 72 [2019-08-04 21:38:25,746 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-08-04 21:38:25,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2019-08-04 21:38:25,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 71. [2019-08-04 21:38:25,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-08-04 21:38:25,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 88 transitions. [2019-08-04 21:38:25,757 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 88 transitions. Word has length 21 [2019-08-04 21:38:25,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-04 21:38:25,757 INFO L475 AbstractCegarLoop]: Abstraction has 71 states and 88 transitions. [2019-08-04 21:38:25,757 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-08-04 21:38:25,758 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 88 transitions. [2019-08-04 21:38:25,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-08-04 21:38:25,759 INFO L391 BasicCegarLoop]: Found error trace [2019-08-04 21:38:25,759 INFO L399 BasicCegarLoop]: trace histogram [7, 6, 6, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1] [2019-08-04 21:38:25,759 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-04 21:38:25,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-04 21:38:25,760 INFO L82 PathProgramCache]: Analyzing trace with hash -1217592621, now seen corresponding path program 1 times [2019-08-04 21:38:25,760 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-04 21:38:25,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-04 21:38:25,797 INFO L256 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 2 conjunts are in the unsatisfiable core [2019-08-04 21:38:25,800 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-04 21:38:25,855 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-08-04 21:38:25,856 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-04 21:38:25,856 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-08-04 21:38:25,857 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-04 21:38:25,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-04 21:38:25,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-04 21:38:25,857 INFO L87 Difference]: Start difference. First operand 71 states and 88 transitions. Second operand 3 states. [2019-08-04 21:38:25,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-04 21:38:25,945 INFO L93 Difference]: Finished difference Result 78 states and 90 transitions. [2019-08-04 21:38:25,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-04 21:38:25,947 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2019-08-04 21:38:25,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-04 21:38:25,948 INFO L225 Difference]: With dead ends: 78 [2019-08-04 21:38:25,948 INFO L226 Difference]: Without dead ends: 75 [2019-08-04 21:38:25,949 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-04 21:38:25,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2019-08-04 21:38:25,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2019-08-04 21:38:25,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2019-08-04 21:38:25,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 87 transitions. [2019-08-04 21:38:25,956 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 87 transitions. Word has length 38 [2019-08-04 21:38:25,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-04 21:38:25,957 INFO L475 AbstractCegarLoop]: Abstraction has 75 states and 87 transitions. [2019-08-04 21:38:25,957 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-04 21:38:25,957 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 87 transitions. [2019-08-04 21:38:25,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-08-04 21:38:25,959 INFO L391 BasicCegarLoop]: Found error trace [2019-08-04 21:38:25,959 INFO L399 BasicCegarLoop]: trace histogram [8, 7, 7, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2019-08-04 21:38:25,960 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-04 21:38:25,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-04 21:38:25,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1341887865, now seen corresponding path program 1 times [2019-08-04 21:38:25,961 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-04 21:38:25,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-04 21:38:26,002 INFO L256 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 3 conjunts are in the unsatisfiable core [2019-08-04 21:38:26,011 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-04 21:38:26,097 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 85 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-08-04 21:38:26,098 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-04 21:38:26,098 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2019-08-04 21:38:26,099 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-04 21:38:26,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-04 21:38:26,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-04 21:38:26,101 INFO L87 Difference]: Start difference. First operand 75 states and 87 transitions. Second operand 4 states. [2019-08-04 21:38:26,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-04 21:38:26,561 INFO L93 Difference]: Finished difference Result 70 states and 79 transitions. [2019-08-04 21:38:26,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-08-04 21:38:26,562 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2019-08-04 21:38:26,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-04 21:38:26,563 INFO L225 Difference]: With dead ends: 70 [2019-08-04 21:38:26,563 INFO L226 Difference]: Without dead ends: 0 [2019-08-04 21:38:26,563 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-08-04 21:38:26,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-04 21:38:26,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-04 21:38:26,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-04 21:38:26,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-04 21:38:26,565 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2019-08-04 21:38:26,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-04 21:38:26,565 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-04 21:38:26,565 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-04 21:38:26,565 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-04 21:38:26,565 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-04 21:38:26,571 INFO L202 PluginConnector]: Adding new model s3_srvr_2.cil.c_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.08 09:38:26 BoogieIcfgContainer [2019-08-04 21:38:26,571 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-04 21:38:26,574 INFO L168 Benchmark]: Toolchain (without parser) took 3081.63 ms. Allocated memory was 140.5 MB in the beginning and 177.2 MB in the end (delta: 36.7 MB). Free memory was 108.1 MB in the beginning and 69.2 MB in the end (delta: 38.9 MB). Peak memory consumption was 75.6 MB. Max. memory is 7.1 GB. [2019-08-04 21:38:26,575 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.25 ms. Allocated memory is still 140.5 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. [2019-08-04 21:38:26,576 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.23 ms. Allocated memory is still 140.5 MB. Free memory was 107.9 MB in the beginning and 106.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-08-04 21:38:26,577 INFO L168 Benchmark]: Boogie Preprocessor took 32.85 ms. Allocated memory is still 140.5 MB. Free memory was 106.2 MB in the beginning and 104.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-08-04 21:38:26,577 INFO L168 Benchmark]: RCFGBuilder took 664.80 ms. Allocated memory is still 140.5 MB. Free memory was 104.6 MB in the beginning and 81.2 MB in the end (delta: 23.4 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. [2019-08-04 21:38:26,579 INFO L168 Benchmark]: TraceAbstraction took 2338.36 ms. Allocated memory was 140.5 MB in the beginning and 177.2 MB in the end (delta: 36.7 MB). Free memory was 80.8 MB in the beginning and 69.2 MB in the end (delta: 11.6 MB). Peak memory consumption was 48.3 MB. Max. memory is 7.1 GB. [2019-08-04 21:38:26,583 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 0.25 ms. Allocated memory is still 140.5 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 39.23 ms. Allocated memory is still 140.5 MB. Free memory was 107.9 MB in the beginning and 106.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 32.85 ms. Allocated memory is still 140.5 MB. Free memory was 106.2 MB in the beginning and 104.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 664.80 ms. Allocated memory is still 140.5 MB. Free memory was 104.6 MB in the beginning and 81.2 MB in the end (delta: 23.4 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2338.36 ms. Allocated memory was 140.5 MB in the beginning and 177.2 MB in the end (delta: 36.7 MB). Free memory was 80.8 MB in the beginning and 69.2 MB in the end (delta: 11.6 MB). Peak memory consumption was 48.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 399]: 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, 11 locations, 1 error locations. SAFE Result, 2.2s OverallTime, 7 OverallIterations, 8 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 102 SDtfs, 20 SDslu, 71 SDs, 0 SdLazy, 129 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=6, 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, 7 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 156 NumberOfCodeBlocks, 156 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 149 ConstructedInterpolants, 0 QuantifiedInterpolants, 6493 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1691 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 231/249 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...