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-nestedInterpolants.epf -i ../../../trunk/examples/programs/real-life/GripperTest-incorrect.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-56c9370 [2018-07-23 15:14:52,457 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 15:14:52,460 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 15:14:52,473 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 15:14:52,473 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 15:14:52,474 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 15:14:52,476 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 15:14:52,478 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 15:14:52,480 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 15:14:52,483 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 15:14:52,484 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 15:14:52,484 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 15:14:52,485 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 15:14:52,486 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 15:14:52,487 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 15:14:52,488 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 15:14:52,489 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 15:14:52,491 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 15:14:52,493 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 15:14:52,495 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 15:14:52,496 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 15:14:52,498 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 15:14:52,501 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 15:14:52,501 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 15:14:52,501 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 15:14:52,502 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 15:14:52,504 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 15:14:52,505 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 15:14:52,506 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 15:14:52,507 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 15:14:52,507 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 15:14:52,508 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-23 15:14:52,513 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/AutomizerBpl-nestedInterpolants.epf [2018-07-23 15:14:52,539 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 15:14:52,540 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 15:14:52,542 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 15:14:52,542 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-23 15:14:52,545 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 15:14:52,545 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-07-23 15:14:52,545 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-23 15:14:52,546 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 15:14:52,635 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 15:14:52,648 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 15:14:52,652 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 15:14:52,654 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-23 15:14:52,654 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-23 15:14:52,655 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/GripperTest-incorrect.bpl [2018-07-23 15:14:52,656 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/GripperTest-incorrect.bpl' [2018-07-23 15:14:52,707 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 15:14:52,709 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-07-23 15:14:52,709 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 15:14:52,710 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 15:14:52,710 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 15:14:52,739 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "GripperTest-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:14:52" (1/1) ... [2018-07-23 15:14:52,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "GripperTest-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:14:52" (1/1) ... [2018-07-23 15:14:52,752 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "GripperTest-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:14:52" (1/1) ... [2018-07-23 15:14:52,752 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "GripperTest-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:14:52" (1/1) ... [2018-07-23 15:14:52,755 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "GripperTest-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:14:52" (1/1) ... [2018-07-23 15:14:52,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "GripperTest-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:14:52" (1/1) ... [2018-07-23 15:14:52,761 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "GripperTest-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:14:52" (1/1) ... [2018-07-23 15:14:52,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 15:14:52,764 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 15:14:52,764 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 15:14:52,764 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 15:14:52,766 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "GripperTest-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:14:52" (1/1) ... [2018-07-23 15:14:52,858 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-07-23 15:14:52,858 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 15:14:52,858 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 15:14:53,219 INFO L258 CfgBuilder]: Using library mode [2018-07-23 15:14:53,220 INFO L202 PluginConnector]: Adding new model GripperTest-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:14:53 BoogieIcfgContainer [2018-07-23 15:14:53,220 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 15:14:53,222 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 15:14:53,222 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 15:14:53,226 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 15:14:53,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "GripperTest-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:14:52" (1/2) ... [2018-07-23 15:14:53,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c3938d7 and model type GripperTest-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 03:14:53, skipping insertion in model container [2018-07-23 15:14:53,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "GripperTest-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:14:53" (2/2) ... [2018-07-23 15:14:53,238 INFO L112 eAbstractionObserver]: Analyzing ICFG GripperTest-incorrect.bpl [2018-07-23 15:14:53,248 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-07-23 15:14:53,261 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 15:14:53,312 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 15:14:53,313 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 15:14:53,313 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 15:14:53,314 INFO L375 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-07-23 15:14:53,314 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 15:14:53,314 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 15:14:53,314 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 15:14:53,314 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 15:14:53,315 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 15:14:53,331 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2018-07-23 15:14:53,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-07-23 15:14:53,344 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:14:53,345 INFO L353 BasicCegarLoop]: trace histogram [1, 1] [2018-07-23 15:14:53,345 INFO L414 AbstractCegarLoop]: === Iteration 1 === [mainErr0AssertViolationINVARIANTandASSERT]=== [2018-07-23 15:14:53,350 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-07-23 15:14:53,357 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:14:53,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 15:14:53,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 15:14:53,417 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 15:14:53,417 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-07-23 15:14:53,421 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 15:14:53,433 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 15:14:53,434 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 15:14:53,437 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 3 states. [2018-07-23 15:14:53,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:14:53,479 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2018-07-23 15:14:53,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 15:14:53,482 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2018-07-23 15:14:53,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:14:53,495 INFO L225 Difference]: With dead ends: 9 [2018-07-23 15:14:53,495 INFO L226 Difference]: Without dead ends: 6 [2018-07-23 15:14:53,499 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 15:14:53,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2018-07-23 15:14:53,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 5. [2018-07-23 15:14:53,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-07-23 15:14:53,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2018-07-23 15:14:53,534 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 2 [2018-07-23 15:14:53,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:14:53,535 INFO L471 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2018-07-23 15:14:53,535 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 15:14:53,535 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2018-07-23 15:14:53,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-23 15:14:53,535 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:14:53,536 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-23 15:14:53,536 INFO L414 AbstractCegarLoop]: === Iteration 2 === [mainErr0AssertViolationINVARIANTandASSERT]=== [2018-07-23 15:14:53,536 INFO L82 PathProgramCache]: Analyzing trace with hash 928452, now seen corresponding path program 1 times [2018-07-23 15:14:53,537 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:14:53,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 15:14:53,564 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 15:14:53,564 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 15:14:53,565 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2018-07-23 15:14:53,567 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 15:14:53,567 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 15:14:53,568 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 15:14:53,568 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 4 states. [2018-07-23 15:14:53,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:14:53,595 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2018-07-23 15:14:53,596 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 15:14:53,596 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-07-23 15:14:53,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:14:53,597 INFO L225 Difference]: With dead ends: 9 [2018-07-23 15:14:53,597 INFO L226 Difference]: Without dead ends: 8 [2018-07-23 15:14:53,598 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 15:14:53,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-07-23 15:14:53,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-07-23 15:14:53,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-23 15:14:53,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-23 15:14:53,601 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-07-23 15:14:53,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:14:53,601 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-23 15:14:53,601 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 15:14:53,602 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-23 15:14:53,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-23 15:14:53,602 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:14:53,602 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 1, 1] [2018-07-23 15:14:53,602 INFO L414 AbstractCegarLoop]: === Iteration 3 === [mainErr0AssertViolationINVARIANTandASSERT]=== [2018-07-23 15:14:53,602 INFO L82 PathProgramCache]: Analyzing trace with hash 892245381, now seen corresponding path program 2 times [2018-07-23 15:14:53,603 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:14:53,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-07-23 15:14:53,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-07-23 15:14:53,648 INFO L419 BasicCegarLoop]: Counterexample might be feasible [2018-07-23 15:14:53,674 INFO L202 PluginConnector]: Adding new model GripperTest-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 03:14:53 BoogieIcfgContainer [2018-07-23 15:14:53,674 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 15:14:53,675 INFO L168 Benchmark]: Toolchain (without parser) took 967.94 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. [2018-07-23 15:14:53,678 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 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. [2018-07-23 15:14:53,680 INFO L168 Benchmark]: Boogie Preprocessor took 53.98 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. [2018-07-23 15:14:53,680 INFO L168 Benchmark]: RCFGBuilder took 456.74 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-23 15:14:53,683 INFO L168 Benchmark]: TraceAbstraction took 452.75 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-07-23 15:14:53,688 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 0.23 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 53.98 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 456.74 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 452.75 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 22]: loop invariant can be violated and assertion can be violated loop invariant can be violated and assertion can be violated We found a FailurePath: [L13] is_room_x := true; [L14] is_left_gripper := true; [L15] room_x := 4; [L16] room_y := 0; [L17] gripper_left := 0; [L18] gripper_right := 0; VAL [gripper_left=0, gripper_right=0, is_left_gripper=true, is_room_x=true, room_x=4, room_y=0] [L22] invariant room_y != -1; VAL [gripper_left=0, gripper_right=0, is_left_gripper=true, is_room_x=true, room_x=4, room_y=0] [?] COND TRUE * [L25] COND TRUE is_room_x == true [L26] is_room_x := false; VAL [gripper_left=0, gripper_right=0, is_left_gripper=true, is_room_x=false, room_x=4, room_y=0] [L22] invariant room_y != -1; VAL [gripper_left=0, gripper_right=0, is_left_gripper=true, is_room_x=false, room_x=4, room_y=0] [?] COND TRUE * [L39] COND FALSE !(true == is_room_x) [L42] room_y := room_y - 1; [L45] COND TRUE true == is_left_gripper [L46] gripper_left := gripper_left + 1; VAL [gripper_left=1, gripper_right=0, is_left_gripper=true, is_room_x=false, room_x=4, room_y=-1] [L22] invariant room_y != -1; VAL [gripper_left=1, gripper_right=0, is_left_gripper=true, is_room_x=false, room_x=4, room_y=-1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5 SDtfs, 4 SDslu, 1 SDs, 0 SdLazy, 13 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=2, 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, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 42 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/1 InterpolantCoveringCapability, 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/GripperTest-incorrect.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-07-23_15-14-53-703.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/GripperTest-incorrect.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_15-14-53-703.csv Received shutdown request...