java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml -s ../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf -i ../../../trunk/examples/programs/20181010-MemSafetyPathprograms/java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_6.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b8f97f7-m [2018-10-10 15:36:20,801 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 15:36:20,803 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 15:36:20,815 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 15:36:20,815 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 15:36:20,816 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 15:36:20,817 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 15:36:20,819 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 15:36:20,821 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 15:36:20,821 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 15:36:20,822 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-10-10 15:36:20,860 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-10 15:36:20,877 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 15:36:20,877 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 15:36:20,878 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 15:36:20,878 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 15:36:20,878 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 15:36:20,879 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 15:36:20,879 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 15:36:20,880 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 15:36:20,883 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 15:36:20,883 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 15:36:20,883 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 15:36:20,883 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 15:36:20,884 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 15:36:20,884 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 15:36:20,886 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 15:36:20,937 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 15:36:20,950 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 15:36:20,954 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 15:36:20,955 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 15:36:20,956 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 15:36:20,957 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_6.bpl [2018-10-10 15:36:20,957 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_6.bpl' [2018-10-10 15:36:21,015 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 15:36:21,017 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-10 15:36:21,018 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 15:36:21,018 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 15:36:21,018 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 15:36:21,047 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:21" (1/1) ... [2018-10-10 15:36:21,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:21" (1/1) ... [2018-10-10 15:36:21,064 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:21" (1/1) ... [2018-10-10 15:36:21,064 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:21" (1/1) ... [2018-10-10 15:36:21,068 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:21" (1/1) ... [2018-10-10 15:36:21,070 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:21" (1/1) ... [2018-10-10 15:36:21,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:21" (1/1) ... [2018-10-10 15:36:21,074 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 15:36:21,075 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 15:36:21,075 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 15:36:21,075 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 15:36:21,076 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:21" (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 [2018-10-10 15:36:21,148 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 15:36:21,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 15:36:21,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 15:36:21,676 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 15:36:21,677 INFO L202 PluginConnector]: Adding new model java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:36:21 BoogieIcfgContainer [2018-10-10 15:36:21,677 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 15:36:21,678 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 15:36:21,679 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 15:36:21,682 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 15:36:21,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:21" (1/2) ... [2018-10-10 15:36:21,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47b95654 and model type java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 03:36:21, skipping insertion in model container [2018-10-10 15:36:21,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:36:21" (2/2) ... [2018-10-10 15:36:21,686 INFO L112 eAbstractionObserver]: Analyzing ICFG java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_6.bpl [2018-10-10 15:36:21,696 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 15:36:21,707 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 15:36:21,725 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 15:36:21,754 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 15:36:21,755 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 15:36:21,755 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 15:36:21,756 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 15:36:21,756 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 15:36:21,756 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 15:36:21,756 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 15:36:21,756 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 15:36:21,756 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 15:36:21,776 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2018-10-10 15:36:21,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-10-10 15:36:21,789 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:36:21,791 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:36:21,793 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:36:21,802 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:36:21,802 INFO L82 PathProgramCache]: Analyzing trace with hash -1044287479, now seen corresponding path program 1 times [2018-10-10 15:36:21,851 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:36:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:36:22,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:36:22,831 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:36:22,832 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-10-10 15:36:22,837 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-10-10 15:36:22,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-10-10 15:36:22,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2018-10-10 15:36:22,857 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 15 states. [2018-10-10 15:36:24,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:36:24,335 INFO L93 Difference]: Finished difference Result 76 states and 76 transitions. [2018-10-10 15:36:24,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-10 15:36:24,337 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 34 [2018-10-10 15:36:24,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:36:24,352 INFO L225 Difference]: With dead ends: 76 [2018-10-10 15:36:24,354 INFO L226 Difference]: Without dead ends: 76 [2018-10-10 15:36:24,359 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=173, Invalid=427, Unknown=0, NotChecked=0, Total=600 [2018-10-10 15:36:24,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-10-10 15:36:24,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 58. [2018-10-10 15:36:24,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-10-10 15:36:24,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2018-10-10 15:36:24,408 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 34 [2018-10-10 15:36:24,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:36:24,408 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2018-10-10 15:36:24,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-10-10 15:36:24,409 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2018-10-10 15:36:24,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-10-10 15:36:24,411 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:36:24,411 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:36:24,411 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:36:24,412 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:36:24,412 INFO L82 PathProgramCache]: Analyzing trace with hash 889150554, now seen corresponding path program 1 times [2018-10-10 15:36:24,413 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:36:24,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:36:24,870 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:36:24,871 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:36:24,871 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-10-10 15:36:24,873 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-10-10 15:36:24,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-10-10 15:36:24,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2018-10-10 15:36:24,874 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand 15 states. [2018-10-10 15:36:25,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:36:25,888 INFO L93 Difference]: Finished difference Result 99 states and 99 transitions. [2018-10-10 15:36:25,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-10 15:36:25,889 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 57 [2018-10-10 15:36:25,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:36:25,891 INFO L225 Difference]: With dead ends: 99 [2018-10-10 15:36:25,891 INFO L226 Difference]: Without dead ends: 99 [2018-10-10 15:36:25,892 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2018-10-10 15:36:25,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2018-10-10 15:36:25,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 81. [2018-10-10 15:36:25,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-10-10 15:36:25,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 81 transitions. [2018-10-10 15:36:25,902 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 81 transitions. Word has length 57 [2018-10-10 15:36:25,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:36:25,903 INFO L481 AbstractCegarLoop]: Abstraction has 81 states and 81 transitions. [2018-10-10 15:36:25,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-10-10 15:36:25,903 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 81 transitions. [2018-10-10 15:36:25,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-10-10 15:36:25,906 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:36:25,907 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:36:25,908 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:36:25,908 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:36:25,908 INFO L82 PathProgramCache]: Analyzing trace with hash -1722407703, now seen corresponding path program 2 times [2018-10-10 15:36:25,910 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:36:25,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:36:26,314 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:36:26,314 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:36:26,315 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-10-10 15:36:26,316 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-10 15:36:26,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-10 15:36:26,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2018-10-10 15:36:26,317 INFO L87 Difference]: Start difference. First operand 81 states and 81 transitions. Second operand 16 states. [2018-10-10 15:36:27,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:36:27,275 INFO L93 Difference]: Finished difference Result 97 states and 97 transitions. [2018-10-10 15:36:27,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-10-10 15:36:27,276 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 80 [2018-10-10 15:36:27,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:36:27,278 INFO L225 Difference]: With dead ends: 97 [2018-10-10 15:36:27,279 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 15:36:27,280 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=292, Invalid=830, Unknown=0, NotChecked=0, Total=1122 [2018-10-10 15:36:27,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 15:36:27,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 15:36:27,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 15:36:27,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 15:36:27,281 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 80 [2018-10-10 15:36:27,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:36:27,282 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 15:36:27,282 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-10-10 15:36:27,282 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 15:36:27,282 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 15:36:27,288 INFO L202 PluginConnector]: Adding new model java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 03:36:27 BoogieIcfgContainer [2018-10-10 15:36:27,288 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 15:36:27,289 INFO L168 Benchmark]: Toolchain (without parser) took 6273.18 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 404.5 MB). Peak memory consumption was 404.5 MB. Max. memory is 7.1 GB. [2018-10-10 15:36:27,291 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 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. [2018-10-10 15:36:27,292 INFO L168 Benchmark]: Boogie Preprocessor took 56.63 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. [2018-10-10 15:36:27,293 INFO L168 Benchmark]: RCFGBuilder took 602.58 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. [2018-10-10 15:36:27,294 INFO L168 Benchmark]: TraceAbstraction took 5609.79 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 383.3 MB). Peak memory consumption was 383.3 MB. Max. memory is 7.1 GB. [2018-10-10 15:36:27,298 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 56.63 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 602.58 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. * TraceAbstraction took 5609.79 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 383.3 MB). Peak memory consumption was 383.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 111]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 56 locations, 1 error locations. SAFE Result, 5.5s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 3.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 136 SDtfs, 1317 SDslu, 620 SDs, 0 SdLazy, 577 SolverSat, 52 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=81occurred 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, 3 MinimizatonAttempts, 36 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 171 NumberOfCodeBlocks, 171 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 168 ConstructedInterpolants, 0 QuantifiedInterpolants, 75477 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 3/35 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_6.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-10_15-36-27-310.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_6.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-10_15-36-27-310.csv Received shutdown request...