java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/programs/regression/bpl/AutomizerBpl-pdr.epf -i ../../../trunk/examples/programs/toy/nonlinear/Power3-Safe.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-56c9370 [2018-07-23 16:28:04,574 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 16:28:04,578 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 16:28:04,594 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 16:28:04,595 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 16:28:04,597 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 16:28:04,598 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 16:28:04,600 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 16:28:04,602 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 16:28:04,603 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 16:28:04,604 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 16:28:04,606 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 16:28:04,607 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 16:28:04,608 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 16:28:04,610 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 16:28:04,618 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 16:28:04,619 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 16:28:04,623 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 16:28:04,625 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 16:28:04,629 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 16:28:04,632 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 16:28:04,634 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 16:28:04,636 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 16:28:04,637 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 16:28:04,637 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 16:28:04,640 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 16:28:04,641 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 16:28:04,641 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 16:28:04,642 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 16:28:04,645 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 16:28:04,645 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 16:28:04,645 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 16:28:04,646 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 16:28:04,646 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 16:28:04,647 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 16:28:04,647 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 16:28:04,648 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/AutomizerBpl-pdr.epf [2018-07-23 16:28:04,655 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 16:28:04,656 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 16:28:04,657 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 16:28:04,657 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-23 16:28:04,657 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-23 16:28:04,657 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 16:28:04,703 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 16:28:04,718 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 16:28:04,725 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 16:28:04,727 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-23 16:28:04,727 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-23 16:28:04,728 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/nonlinear/Power3-Safe.bpl [2018-07-23 16:28:04,729 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/nonlinear/Power3-Safe.bpl' [2018-07-23 16:28:04,778 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 16:28:04,781 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-07-23 16:28:04,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 16:28:04,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 16:28:04,782 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 16:28:04,812 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Power3-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:28:04" (1/1) ... [2018-07-23 16:28:04,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Power3-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:28:04" (1/1) ... [2018-07-23 16:28:04,824 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Power3-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:28:04" (1/1) ... [2018-07-23 16:28:04,825 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Power3-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:28:04" (1/1) ... [2018-07-23 16:28:04,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Power3-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:28:04" (1/1) ... [2018-07-23 16:28:04,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Power3-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:28:04" (1/1) ... [2018-07-23 16:28:04,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Power3-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:28:04" (1/1) ... [2018-07-23 16:28:04,838 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 16:28:04,839 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 16:28:04,839 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 16:28:04,840 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 16:28:04,842 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Power3-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:28:04" (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 [2018-07-23 16:28:04,916 INFO L124 BoogieDeclarations]: Specification and implementation of procedure power given in one single declaration [2018-07-23 16:28:04,917 INFO L130 BoogieDeclarations]: Found specification of procedure power [2018-07-23 16:28:04,917 INFO L138 BoogieDeclarations]: Found implementation of procedure power [2018-07-23 16:28:04,985 WARN L448 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-07-23 16:28:05,183 INFO L258 CfgBuilder]: Using library mode [2018-07-23 16:28:05,183 INFO L202 PluginConnector]: Adding new model Power3-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 04:28:05 BoogieIcfgContainer [2018-07-23 16:28:05,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 16:28:05,186 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 16:28:05,188 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 16:28:05,192 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 16:28:05,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Power3-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:28:04" (1/2) ... [2018-07-23 16:28:05,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bedbae7 and model type Power3-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 04:28:05, skipping insertion in model container [2018-07-23 16:28:05,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Power3-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 04:28:05" (2/2) ... [2018-07-23 16:28:05,195 INFO L112 eAbstractionObserver]: Analyzing ICFG Power3-Safe.bpl [2018-07-23 16:28:05,205 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-23 16:28:05,213 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 16:28:05,261 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 16:28:05,262 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 16:28:05,262 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 16:28:05,262 INFO L375 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-23 16:28:05,262 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 16:28:05,262 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 16:28:05,263 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 16:28:05,263 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 16:28:05,263 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 16:28:05,278 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2018-07-23 16:28:05,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-07-23 16:28:05,287 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 16:28:05,288 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-07-23 16:28:05,289 INFO L414 AbstractCegarLoop]: === Iteration 1 === [powerErr0EnsuresViolationPOST_CONDITION]=== [2018-07-23 16:28:05,294 INFO L82 PathProgramCache]: Analyzing trace with hash 39627, now seen corresponding path program 1 times [2018-07-23 16:28:05,301 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 16:28:05,600 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 16:28:05,601 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-23 16:28:05,606 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 16:28:05,612 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 16:28:05,612 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-23 16:28:05,615 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 4 states. [2018-07-23 16:28:05,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 16:28:05,690 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2018-07-23 16:28:05,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 16:28:05,692 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2018-07-23 16:28:05,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 16:28:05,703 INFO L225 Difference]: With dead ends: 8 [2018-07-23 16:28:05,704 INFO L226 Difference]: Without dead ends: 5 [2018-07-23 16:28:05,707 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-23 16:28:05,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2018-07-23 16:28:05,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2018-07-23 16:28:05,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-07-23 16:28:05,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2018-07-23 16:28:05,742 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2018-07-23 16:28:05,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 16:28:05,742 INFO L471 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2018-07-23 16:28:05,742 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 16:28:05,743 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2018-07-23 16:28:05,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-23 16:28:05,743 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 16:28:05,743 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-23 16:28:05,743 INFO L414 AbstractCegarLoop]: === Iteration 2 === [powerErr0EnsuresViolationPOST_CONDITION]=== [2018-07-23 16:28:05,744 INFO L82 PathProgramCache]: Analyzing trace with hash 1226462, now seen corresponding path program 1 times [2018-07-23 16:28:05,744 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 16:28:06,222 WARN L169 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 14 [2018-07-23 16:28:07,646 WARN L169 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2018-07-23 16:28:40,474 WARN L169 SmtUtils]: Spent 32.59 s on a formula simplification that was a NOOP. DAG size: 52 [2018-07-23 16:29:59,350 WARN L169 SmtUtils]: Spent 1.31 m on a formula simplification that was a NOOP. DAG size: 60 [2018-07-23 16:31:37,815 WARN L169 SmtUtils]: Spent 1.63 m on a formula simplification that was a NOOP. DAG size: 68 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown