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/toy/tooDifficultLoopInvariant/Sandman01.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-04 21:46:30,614 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-04 21:46:30,616 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-04 21:46:30,631 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-08-04 21:46:30,674 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-04 21:46:30,677 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-04 21:46:30,678 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-04 21:46:30,680 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-04 21:46:30,681 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-04 21:46:30,682 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-04 21:46:30,683 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-04 21:46:30,683 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-04 21:46:30,683 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-04 21:46:30,684 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-04 21:46:30,687 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-04 21:46:30,725 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-04 21:46:30,737 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-04 21:46:30,741 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-04 21:46:30,742 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-04 21:46:30,743 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-04 21:46:30,744 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Sandman01.bpl [2019-08-04 21:46:30,744 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Sandman01.bpl' [2019-08-04 21:46:30,777 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-04 21:46:30,780 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-04 21:46:30,781 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-04 21:46:30,781 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-04 21:46:30,781 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-04 21:46:30,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "Sandman01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:46:30" (1/1) ... [2019-08-04 21:46:30,812 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "Sandman01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:46:30" (1/1) ... [2019-08-04 21:46:30,820 WARN L165 Inliner]: Program contained no entry procedure! [2019-08-04 21:46:30,820 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-08-04 21:46:30,820 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-08-04 21:46:30,822 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-04 21:46:30,823 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-04 21:46:30,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-04 21:46:30,823 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-04 21:46:30,836 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Sandman01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:46:30" (1/1) ... [2019-08-04 21:46:30,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Sandman01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:46:30" (1/1) ... [2019-08-04 21:46:30,837 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Sandman01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:46:30" (1/1) ... [2019-08-04 21:46:30,837 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Sandman01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:46:30" (1/1) ... [2019-08-04 21:46:30,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Sandman01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:46:30" (1/1) ... [2019-08-04 21:46:30,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Sandman01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:46:30" (1/1) ... [2019-08-04 21:46:30,849 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Sandman01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:46:30" (1/1) ... [2019-08-04 21:46:30,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-04 21:46:30,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-04 21:46:30,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-04 21:46:30,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-04 21:46:30,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Sandman01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:46:30" (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 [2019-08-04 21:46:30,926 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2019-08-04 21:46:30,927 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-04 21:46:30,927 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-04 21:46:31,108 INFO L275 CfgBuilder]: Using library mode [2019-08-04 21:46:31,109 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-04 21:46:31,110 INFO L202 PluginConnector]: Adding new model Sandman01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.08 09:46:31 BoogieIcfgContainer [2019-08-04 21:46:31,110 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-04 21:46:31,112 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-04 21:46:31,112 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-04 21:46:31,115 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-04 21:46:31,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Sandman01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:46:30" (1/2) ... [2019-08-04 21:46:31,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a60aa82 and model type Sandman01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.08 09:46:31, skipping insertion in model container [2019-08-04 21:46:31,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Sandman01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.08 09:46:31" (2/2) ... [2019-08-04 21:46:31,118 INFO L109 eAbstractionObserver]: Analyzing ICFG Sandman01.bpl [2019-08-04 21:46:31,128 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-04 21:46:31,135 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-04 21:46:31,152 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-04 21:46:31,178 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-04 21:46:31,178 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-04 21:46:31,179 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-04 21:46:31,179 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-04 21:46:31,179 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-04 21:46:31,179 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-04 21:46:31,179 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-04 21:46:31,180 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-04 21:46:31,180 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-04 21:46:31,192 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-08-04 21:46:31,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-08-04 21:46:31,200 INFO L391 BasicCegarLoop]: Found error trace [2019-08-04 21:46:31,201 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-08-04 21:46:31,203 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-04 21:46:31,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-04 21:46:31,212 INFO L82 PathProgramCache]: Analyzing trace with hash 30048, now seen corresponding path program 1 times [2019-08-04 21:46:31,260 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-04 21:46:31,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-04 21:46:31,309 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 3 conjunts are in the unsatisfiable core [2019-08-04 21:46:31,312 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-04 21:46:31,597 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2019-08-04 21:46:31,599 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-08-04 21:46:31,600 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2019-08-04 21:46:31,602 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-04 21:46:31,693 INFO L567 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-08-04 21:46:31,694 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-04 21:46:31,694 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:9, output treesize:15 [2019-08-04 21:46:31,748 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 21:46:31,750 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-04 21:46:31,751 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-08-04 21:46:31,754 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-04 21:46:31,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-04 21:46:31,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-04 21:46:31,768 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2019-08-04 21:46:31,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-04 21:46:31,815 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2019-08-04 21:46:31,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-04 21:46:31,817 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-08-04 21:46:31,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-04 21:46:31,826 INFO L225 Difference]: With dead ends: 9 [2019-08-04 21:46:31,826 INFO L226 Difference]: Without dead ends: 5 [2019-08-04 21:46:31,828 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 21:46:31,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2019-08-04 21:46:31,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2019-08-04 21:46:31,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-08-04 21:46:31,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2019-08-04 21:46:31,856 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2019-08-04 21:46:31,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-04 21:46:31,856 INFO L475 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2019-08-04 21:46:31,857 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-04 21:46:31,857 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2019-08-04 21:46:31,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-08-04 21:46:31,857 INFO L391 BasicCegarLoop]: Found error trace [2019-08-04 21:46:31,858 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-08-04 21:46:31,858 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-04 21:46:31,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-04 21:46:31,859 INFO L82 PathProgramCache]: Analyzing trace with hash 927622, now seen corresponding path program 1 times [2019-08-04 21:46:31,860 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-04 21:46:31,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-04 21:46:31,874 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-08-04 21:46:31,875 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-04 21:46:31,961 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-08-04 21:46:31,962 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2019-08-04 21:46:31,963 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-04 21:46:32,038 INFO L567 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-08-04 21:46:32,039 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-04 21:46:32,039 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:9, output treesize:15 [2019-08-04 21:46:32,055 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:46:32,137 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-04 21:46:32,172 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-04 21:46:32,420 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2019-08-04 21:46:32,420 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-08-04 21:46:32,421 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 53 treesize of output 87 [2019-08-04 21:46:32,424 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:46:32,425 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:46:32,427 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:46:32,430 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:46:32,430 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:46:32,431 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:46:32,432 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:46:32,435 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:46:32,437 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:46:32,438 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:46:32,440 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:46:32,442 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:46:32,443 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:46:32,443 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:46:32,445 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:46:32,447 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:46:32,447 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:46:32,449 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:46:32,452 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:46:32,453 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:46:32,454 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:46:32,455 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:46:32,456 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:46:32,457 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:46:32,460 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:46:32,460 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:46:32,462 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:46:32,464 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:46:32,465 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:46:32,466 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:46:32,467 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:46:32,469 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:46:32,470 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:46:32,471 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:46:32,474 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:46:32,499 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: This case should habe been handled by DER at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.classify(DerPreprocessor.java:212) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.classify(DerPreprocessor.java:192) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.(DerPreprocessor.java:95) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:291) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:256) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.FixedRefinementStrategy.getTraceCheck(FixedRefinementStrategy.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) 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:453) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:371) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) 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) [2019-08-04 21:46:32,504 INFO L168 Benchmark]: Toolchain (without parser) took 1724.37 ms. Allocated memory was 138.9 MB in the beginning and 179.3 MB in the end (delta: 40.4 MB). Free memory was 108.6 MB in the beginning and 133.7 MB in the end (delta: -25.1 MB). Peak memory consumption was 59.8 MB. Max. memory is 7.1 GB. [2019-08-04 21:46:32,505 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 109.8 MB in the beginning and 109.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-08-04 21:46:32,506 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.83 ms. Allocated memory is still 138.9 MB. Free memory was 108.6 MB in the beginning and 106.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-08-04 21:46:32,507 INFO L168 Benchmark]: Boogie Preprocessor took 27.32 ms. Allocated memory is still 138.9 MB. Free memory was 106.7 MB in the beginning and 105.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. [2019-08-04 21:46:32,508 INFO L168 Benchmark]: RCFGBuilder took 259.59 ms. Allocated memory is still 138.9 MB. Free memory was 105.4 MB in the beginning and 96.4 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2019-08-04 21:46:32,509 INFO L168 Benchmark]: TraceAbstraction took 1390.10 ms. Allocated memory was 138.9 MB in the beginning and 179.3 MB in the end (delta: 40.4 MB). Free memory was 96.0 MB in the beginning and 134.5 MB in the end (delta: -38.5 MB). Peak memory consumption was 47.2 MB. Max. memory is 7.1 GB. [2019-08-04 21:46:32,513 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 138.9 MB. Free memory was 109.8 MB in the beginning and 109.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 41.83 ms. Allocated memory is still 138.9 MB. Free memory was 108.6 MB in the beginning and 106.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.32 ms. Allocated memory is still 138.9 MB. Free memory was 106.7 MB in the beginning and 105.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 259.59 ms. Allocated memory is still 138.9 MB. Free memory was 105.4 MB in the beginning and 96.4 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1390.10 ms. Allocated memory was 138.9 MB in the beginning and 179.3 MB in the end (delta: 40.4 MB). Free memory was 96.0 MB in the beginning and 134.5 MB in the end (delta: -38.5 MB). Peak memory consumption was 47.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: This case should habe been handled by DER de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: This case should habe been handled by DER: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.classify(DerPreprocessor.java:212) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...