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/toy/nonlinear/Power2-Unsafe.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-e6fd87c [2018-07-25 14:28:56,405 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-25 14:28:56,407 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-25 14:28:56,419 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-25 14:28:56,419 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-25 14:28:56,420 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-25 14:28:56,425 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-25 14:28:56,427 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-25 14:28:56,431 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-25 14:28:56,432 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-25 14:28:56,434 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-25 14:28:56,434 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-25 14:28:56,435 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-25 14:28:56,436 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-25 14:28:56,437 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-25 14:28:56,438 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-25 14:28:56,439 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-25 14:28:56,441 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-25 14:28:56,443 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-25 14:28:56,444 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-25 14:28:56,445 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-25 14:28:56,446 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-25 14:28:56,449 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-25 14:28:56,449 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-25 14:28:56,449 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-25 14:28:56,450 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-25 14:28:56,451 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-25 14:28:56,452 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-25 14:28:56,452 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-25 14:28:56,454 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-25 14:28:56,454 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-25 14:28:56,454 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-25 14:28:56,455 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-25 14:28:56,455 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-25 14:28:56,456 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-25 14:28:56,456 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-25 14:28:56,457 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 14:28:56,466 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-25 14:28:56,466 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-25 14:28:56,467 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-25 14:28:56,468 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-25 14:28:56,468 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-25 14:28:56,468 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 14:28:56,468 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-25 14:28:56,513 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-25 14:28:56,529 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-25 14:28:56,536 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-25 14:28:56,537 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-25 14:28:56,538 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-25 14:28:56,539 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/nonlinear/Power2-Unsafe.bpl [2018-07-25 14:28:56,539 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/nonlinear/Power2-Unsafe.bpl' [2018-07-25 14:28:56,578 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-25 14:28:56,579 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-07-25 14:28:56,580 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-25 14:28:56,580 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-25 14:28:56,580 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-25 14:28:56,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "Power2-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:28:56" (1/1) ... [2018-07-25 14:28:56,613 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "Power2-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:28:56" (1/1) ... [2018-07-25 14:28:56,618 WARN L165 Inliner]: Program contained no entry procedure! [2018-07-25 14:28:56,618 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-07-25 14:28:56,619 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-07-25 14:28:56,621 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-25 14:28:56,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-25 14:28:56,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-25 14:28:56,622 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-25 14:28:56,633 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Power2-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:28:56" (1/1) ... [2018-07-25 14:28:56,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Power2-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:28:56" (1/1) ... [2018-07-25 14:28:56,634 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Power2-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:28:56" (1/1) ... [2018-07-25 14:28:56,634 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Power2-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:28:56" (1/1) ... [2018-07-25 14:28:56,636 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Power2-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:28:56" (1/1) ... [2018-07-25 14:28:56,643 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Power2-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:28:56" (1/1) ... [2018-07-25 14:28:56,644 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Power2-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:28:56" (1/1) ... [2018-07-25 14:28:56,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-25 14:28:56,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-25 14:28:56,646 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-25 14:28:56,646 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-25 14:28:56,647 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Power2-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:28:56" (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 14:28:56,709 INFO L124 BoogieDeclarations]: Specification and implementation of procedure power given in one single declaration [2018-07-25 14:28:56,710 INFO L130 BoogieDeclarations]: Found specification of procedure power [2018-07-25 14:28:56,710 INFO L138 BoogieDeclarations]: Found implementation of procedure power [2018-07-25 14:28:56,764 WARN L459 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-07-25 14:28:56,883 INFO L270 CfgBuilder]: Using library mode [2018-07-25 14:28:56,883 INFO L202 PluginConnector]: Adding new model Power2-Unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 02:28:56 BoogieIcfgContainer [2018-07-25 14:28:56,884 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-25 14:28:56,885 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-25 14:28:56,885 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-25 14:28:56,888 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-25 14:28:56,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Power2-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:28:56" (1/2) ... [2018-07-25 14:28:56,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52aadbbb and model type Power2-Unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.07 02:28:56, skipping insertion in model container [2018-07-25 14:28:56,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Power2-Unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 02:28:56" (2/2) ... [2018-07-25 14:28:56,892 INFO L112 eAbstractionObserver]: Analyzing ICFG Power2-Unsafe.bpl [2018-07-25 14:28:56,902 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-25 14:28:56,910 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-25 14:28:56,970 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-25 14:28:56,971 INFO L374 AbstractCegarLoop]: Interprodecural is true [2018-07-25 14:28:56,971 INFO L375 AbstractCegarLoop]: Hoare is true [2018-07-25 14:28:56,971 INFO L376 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-25 14:28:56,971 INFO L377 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-25 14:28:56,972 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-25 14:28:56,972 INFO L379 AbstractCegarLoop]: Difference is false [2018-07-25 14:28:56,972 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-25 14:28:56,972 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-25 14:28:56,991 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2018-07-25 14:28:57,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-07-25 14:28:57,003 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:28:57,005 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-07-25 14:28:57,013 INFO L415 AbstractCegarLoop]: === Iteration 1 === [powerErr0ENSURES_VIOLATIONPOST_CONDITION]=== [2018-07-25 14:28:57,021 INFO L82 PathProgramCache]: Analyzing trace with hash 39627, 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 14:28:57,046 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:28:57,409 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:28:57,409 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-25 14:28:57,414 INFO L451 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-25 14:28:57,421 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-25 14:28:57,422 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-25 14:28:57,424 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 4 states. [2018-07-25 14:28:57,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:28:57,568 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2018-07-25 14:28:57,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-25 14:28:57,570 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2018-07-25 14:28:57,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:28:57,582 INFO L225 Difference]: With dead ends: 8 [2018-07-25 14:28:57,582 INFO L226 Difference]: Without dead ends: 5 [2018-07-25 14:28:57,586 INFO L574 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 [2018-07-25 14:28:57,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2018-07-25 14:28:57,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2018-07-25 14:28:57,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-07-25 14:28:57,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2018-07-25 14:28:57,632 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2018-07-25 14:28:57,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:28:57,632 INFO L472 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2018-07-25 14:28:57,632 INFO L473 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-25 14:28:57,633 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2018-07-25 14:28:57,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-25 14:28:57,633 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:28:57,634 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-25 14:28:57,635 INFO L415 AbstractCegarLoop]: === Iteration 2 === [powerErr0ENSURES_VIOLATIONPOST_CONDITION]=== [2018-07-25 14:28:57,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1226462, 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 14:28:57,647 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:28:58,282 WARN L169 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 14 [2018-07-25 14:28:58,469 INFO L420 BasicCegarLoop]: Counterexample might be feasible [2018-07-25 14:28:58,478 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures res >= a * b; is not ensure(true) [2018-07-25 14:28:58,485 INFO L202 PluginConnector]: Adding new model Power2-Unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.07 02:28:58 BoogieIcfgContainer [2018-07-25 14:28:58,485 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-25 14:28:58,486 INFO L168 Benchmark]: Toolchain (without parser) took 1908.00 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 87.2 MB). Peak memory consumption was 87.2 MB. Max. memory is 7.1 GB. [2018-07-25 14:28:58,488 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 14:28:58,489 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.42 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 14:28:58,489 INFO L168 Benchmark]: Boogie Preprocessor took 23.44 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 14:28:58,490 INFO L168 Benchmark]: RCFGBuilder took 237.97 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-07-25 14:28:58,491 INFO L168 Benchmark]: TraceAbstraction took 1600.73 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: 66.1 MB). Peak memory consumption was 66.1 MB. Max. memory is 7.1 GB. [2018-07-25 14:28:58,495 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 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 41.42 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 23.44 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 237.97 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1600.73 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: 66.1 MB). Peak memory consumption was 66.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures res >= a * b; is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 9]: procedure postcondition can be violated procedure postcondition can be violated We found a FailurePath: [L9-L10] requires a >= 1 && b >= 0; [L15] res := 1; [L16] tmp := b; [L18] COND TRUE tmp > 0 [L20] res := res * a; [L21] tmp := tmp - 1; [L18] COND FALSE !(tmp > 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. UNSAFE Result, 1.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2 SDtfs, 3 SDslu, 0 SDs, 0 SdLazy, 7 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5occurred in iteration=0, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 1.1s PdrRuntime, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Power2-Unsafe.bpl_AutomizerBpl-pdr-z3.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-07-25_14-28-58-508.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Power2-Unsafe.bpl_AutomizerBpl-pdr-z3.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-25_14-28-58-508.csv Received shutdown request...