java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr-z3.epf -i ../../../trunk/examples/programs/real-life/DraegerElevator-FSEN2007.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-e6fd87c [2018-07-25 13:39:58,298 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-25 13:39:58,302 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-25 13:39:58,319 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-25 13:39:58,319 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-25 13:39:58,322 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-25 13:39:58,324 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-25 13:39:58,328 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-25 13:39:58,330 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-25 13:39:58,331 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-25 13:39:58,340 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-25 13:39:58,341 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-25 13:39:58,342 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-25 13:39:58,344 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-25 13:39:58,345 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-25 13:39:58,347 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-25 13:39:58,348 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-25 13:39:58,350 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-25 13:39:58,357 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-25 13:39:58,360 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-25 13:39:58,362 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-25 13:39:58,363 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-25 13:39:58,366 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-25 13:39:58,366 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-25 13:39:58,369 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-25 13:39:58,370 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-25 13:39:58,372 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-25 13:39:58,372 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-25 13:39:58,373 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-25 13:39:58,374 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-25 13:39:58,377 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-25 13:39:58,378 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-25 13:39:58,378 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-25 13:39:58,378 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-25 13:39:58,379 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-25 13:39:58,381 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-25 13:39:58,382 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr-z3.epf [2018-07-25 13:39:58,390 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-25 13:39:58,390 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-25 13:39:58,392 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-25 13:39:58,392 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-25 13:39:58,392 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-25 13:39:58,392 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 13:39:58,392 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-25 13:39:58,455 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-25 13:39:58,471 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-25 13:39:58,477 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-25 13:39:58,479 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-25 13:39:58,480 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-25 13:39:58,481 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/DraegerElevator-FSEN2007.bpl [2018-07-25 13:39:58,481 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/DraegerElevator-FSEN2007.bpl' [2018-07-25 13:39:58,537 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-25 13:39:58,539 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-07-25 13:39:58,540 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-25 13:39:58,540 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-25 13:39:58,540 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-25 13:39:58,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "DraegerElevator-FSEN2007.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:39:58" (1/1) ... [2018-07-25 13:39:58,573 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "DraegerElevator-FSEN2007.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:39:58" (1/1) ... [2018-07-25 13:39:58,577 WARN L165 Inliner]: Program contained no entry procedure! [2018-07-25 13:39:58,578 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-07-25 13:39:58,578 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-07-25 13:39:58,580 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-25 13:39:58,581 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-25 13:39:58,581 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-25 13:39:58,581 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-25 13:39:58,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "DraegerElevator-FSEN2007.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:39:58" (1/1) ... [2018-07-25 13:39:58,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "DraegerElevator-FSEN2007.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:39:58" (1/1) ... [2018-07-25 13:39:58,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "DraegerElevator-FSEN2007.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:39:58" (1/1) ... [2018-07-25 13:39:58,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "DraegerElevator-FSEN2007.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:39:58" (1/1) ... [2018-07-25 13:39:58,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "DraegerElevator-FSEN2007.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:39:58" (1/1) ... [2018-07-25 13:39:58,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "DraegerElevator-FSEN2007.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:39:58" (1/1) ... [2018-07-25 13:39:58,602 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "DraegerElevator-FSEN2007.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:39:58" (1/1) ... [2018-07-25 13:39:58,604 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-25 13:39:58,605 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-25 13:39:58,605 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-25 13:39:58,605 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-25 13:39:58,606 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "DraegerElevator-FSEN2007.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:39:58" (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 [2018-07-25 13:39:58,671 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-07-25 13:39:58,671 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-25 13:39:58,671 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-25 13:39:59,777 INFO L270 CfgBuilder]: Using library mode [2018-07-25 13:39:59,778 INFO L202 PluginConnector]: Adding new model DraegerElevator-FSEN2007.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 01:39:59 BoogieIcfgContainer [2018-07-25 13:39:59,778 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-25 13:39:59,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-25 13:39:59,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-25 13:39:59,786 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-25 13:39:59,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "DraegerElevator-FSEN2007.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:39:58" (1/2) ... [2018-07-25 13:39:59,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14f2a4b7 and model type DraegerElevator-FSEN2007.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.07 01:39:59, skipping insertion in model container [2018-07-25 13:39:59,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "DraegerElevator-FSEN2007.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 01:39:59" (2/2) ... [2018-07-25 13:39:59,796 INFO L112 eAbstractionObserver]: Analyzing ICFG DraegerElevator-FSEN2007.bpl [2018-07-25 13:39:59,809 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-25 13:39:59,824 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-25 13:39:59,865 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-25 13:39:59,866 INFO L374 AbstractCegarLoop]: Interprodecural is true [2018-07-25 13:39:59,866 INFO L375 AbstractCegarLoop]: Hoare is true [2018-07-25 13:39:59,866 INFO L376 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-25 13:39:59,866 INFO L377 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-25 13:39:59,867 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-25 13:39:59,867 INFO L379 AbstractCegarLoop]: Difference is false [2018-07-25 13:39:59,867 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-25 13:39:59,867 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-25 13:39:59,883 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2018-07-25 13:39:59,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-07-25 13:39:59,899 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:39:59,900 INFO L354 BasicCegarLoop]: trace histogram [1, 1] [2018-07-25 13:39:59,904 INFO L415 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONINVARIANTandASSERT]=== [2018-07-25 13:39:59,917 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 13:39:59,938 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:40:00,051 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 13:40:00,051 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-07-25 13:40:00,055 INFO L451 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-25 13:40:00,060 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-25 13:40:00,060 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 13:40:00,063 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 3 states. [2018-07-25 13:40:00,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 13:40:00,146 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2018-07-25 13:40:00,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-25 13:40:00,149 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2018-07-25 13:40:00,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 13:40:00,160 INFO L225 Difference]: With dead ends: 7 [2018-07-25 13:40:00,161 INFO L226 Difference]: Without dead ends: 5 [2018-07-25 13:40:00,164 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 13:40:00,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2018-07-25 13:40:00,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2018-07-25 13:40:00,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-07-25 13:40:00,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2018-07-25 13:40:00,197 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 2 [2018-07-25 13:40:00,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 13:40:00,197 INFO L472 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2018-07-25 13:40:00,197 INFO L473 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-25 13:40:00,198 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2018-07-25 13:40:00,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-25 13:40:00,198 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:40:00,198 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-25 13:40:00,199 INFO L415 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONINVARIANTandASSERT]=== [2018-07-25 13:40:00,199 INFO L82 PathProgramCache]: Analyzing trace with hash 929258, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 13:40:00,209 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:40:02,644 WARN L169 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2018-07-25 13:40:04,942 WARN L169 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2018-07-25 13:40:08,213 WARN L169 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 287 [2018-07-25 13:40:14,690 WARN L169 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 380 [2018-07-25 13:40:24,307 WARN L169 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 381 [2018-07-25 13:40:42,640 WARN L169 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2018-07-25 13:41:11,941 WARN L169 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 475 [2018-07-25 13:42:01,147 WARN L169 SmtUtils]: Spent 575.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2018-07-25 13:42:52,689 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000) stderr output: (error "out of memory") [2018-07-25 13:42:52,691 ERROR L232 seRefinementStrategy]: Caught known exception: External (z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000)Received EOF on stdin. stderr output: (error "out of memory") [2018-07-25 13:42:52,691 INFO L247 seRefinementStrategy]: Global settings require throwing the exception. [2018-07-25 13:42:52,892 WARN L513 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 13:42:52,894 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:249) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:194) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:309) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:151) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:120) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:226) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:154) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.checkSat(ManagedScript.java:140) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:1106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:945) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:355) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:302) at de.uni_freiburg.informatik.ultimate.lib.pdr.Pdr.updateFrames(Pdr.java:599) at de.uni_freiburg.informatik.ultimate.lib.pdr.Pdr.blockingPhase(Pdr.java:355) at de.uni_freiburg.informatik.ultimate.lib.pdr.Pdr.computePdr(Pdr.java:289) at de.uni_freiburg.informatik.ultimate.lib.pdr.Pdr.(Pdr.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructPdr(TraceCheckConstructor.java:275) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:189) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.FixedRefinementStrategy.getTraceCheck(FixedRefinementStrategy.java:130) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:220) ... 19 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1427) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:206) ... 37 more [2018-07-25 13:42:52,899 INFO L168 Benchmark]: Toolchain (without parser) took 174361.02 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 273.2 MB). Free memory was 1.4 GB in the beginning and 884.0 MB in the end (delta: 556.1 MB). Peak memory consumption was 829.2 MB. Max. memory is 7.1 GB. [2018-07-25 13:42:52,900 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 13:42:52,900 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.89 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 13:42:52,901 INFO L168 Benchmark]: Boogie Preprocessor took 23.61 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 13:42:52,901 INFO L168 Benchmark]: RCFGBuilder took 1173.30 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-07-25 13:42:52,903 INFO L168 Benchmark]: TraceAbstraction took 173118.52 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 273.2 MB). Free memory was 1.4 GB in the beginning and 884.0 MB in the end (delta: 524.3 MB). Peak memory consumption was 797.5 MB. Max. memory is 7.1 GB. [2018-07-25 13:42:52,907 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 40.89 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 23.61 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 1173.30 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 173118.52 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 273.2 MB). Free memory was 1.4 GB in the beginning and 884.0 MB in the end (delta: 524.3 MB). Peak memory consumption was 797.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:249) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/DraegerElevator-FSEN2007.bpl_AutomizerBpl-pdr-z3.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-07-25_13-42-52-920.csv Received shutdown request...