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_10.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b8f97f7-m [2018-10-10 15:36:07,653 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 15:36:07,656 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 15:36:07,666 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 15:36:07,667 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 15:36:07,668 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 15:36:07,669 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 15:36:07,671 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 15:36:07,672 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 15:36:07,673 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 15:36:07,674 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-10-10 15:36:07,703 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 15:36:07,714 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 15:36:07,714 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 15:36:07,715 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 15:36:07,715 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 15:36:07,715 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 15:36:07,716 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 15:36:07,716 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 15:36:07,717 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 15:36:07,717 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 15:36:07,717 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 15:36:07,717 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 15:36:07,717 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 15:36:07,718 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 15:36:07,718 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 15:36:07,719 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 15:36:07,777 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 15:36:07,793 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 15:36:07,797 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 15:36:07,799 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 15:36:07,800 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 15:36:07,801 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_10.bpl [2018-10-10 15:36:07,801 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_10.bpl' [2018-10-10 15:36:07,859 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 15:36:07,861 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-10 15:36:07,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 15:36:07,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 15:36:07,862 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 15:36:07,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:07" (1/1) ... [2018-10-10 15:36:07,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:07" (1/1) ... [2018-10-10 15:36:07,904 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:07" (1/1) ... [2018-10-10 15:36:07,905 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:07" (1/1) ... [2018-10-10 15:36:07,909 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:07" (1/1) ... [2018-10-10 15:36:07,912 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:07" (1/1) ... [2018-10-10 15:36:07,914 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:07" (1/1) ... [2018-10-10 15:36:07,917 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 15:36:07,918 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 15:36:07,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 15:36:07,922 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 15:36:07,923 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:07" (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 15:36:07,999 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 15:36:07,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 15:36:07,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 15:36:08,554 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 15:36:08,555 INFO L202 PluginConnector]: Adding new model java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:36:08 BoogieIcfgContainer [2018-10-10 15:36:08,555 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 15:36:08,556 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 15:36:08,556 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 15:36:08,560 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 15:36:08,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:07" (1/2) ... [2018-10-10 15:36:08,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d2669ac and model type java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 03:36:08, skipping insertion in model container [2018-10-10 15:36:08,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:36:08" (2/2) ... [2018-10-10 15:36:08,563 INFO L112 eAbstractionObserver]: Analyzing ICFG java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_10.bpl [2018-10-10 15:36:08,573 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 15:36:08,582 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 15:36:08,600 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 15:36:08,630 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 15:36:08,631 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 15:36:08,631 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 15:36:08,631 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 15:36:08,631 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 15:36:08,631 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 15:36:08,631 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 15:36:08,632 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 15:36:08,632 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 15:36:08,650 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states. [2018-10-10 15:36:08,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-10-10 15:36:08,660 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:36:08,661 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:36:08,662 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:36:08,668 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:36:08,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1524595794, now seen corresponding path program 1 times [2018-10-10 15:36:08,722 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:36:08,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:36:09,864 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 15:36:09,867 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:36:09,867 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-10-10 15:36:09,872 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-10-10 15:36:09,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-10-10 15:36:09,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2018-10-10 15:36:09,893 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 15 states. [2018-10-10 15:36:10,526 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2018-10-10 15:36:11,251 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2018-10-10 15:36:11,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:36:11,733 INFO L93 Difference]: Finished difference Result 95 states and 99 transitions. [2018-10-10 15:36:11,734 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-10-10 15:36:11,735 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 42 [2018-10-10 15:36:11,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:36:11,750 INFO L225 Difference]: With dead ends: 95 [2018-10-10 15:36:11,750 INFO L226 Difference]: Without dead ends: 95 [2018-10-10 15:36:11,754 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=256, Invalid=556, Unknown=0, NotChecked=0, Total=812 [2018-10-10 15:36:11,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2018-10-10 15:36:11,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 82. [2018-10-10 15:36:11,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-10-10 15:36:11,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 84 transitions. [2018-10-10 15:36:11,799 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 84 transitions. Word has length 42 [2018-10-10 15:36:11,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:36:11,800 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 84 transitions. [2018-10-10 15:36:11,800 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-10-10 15:36:11,801 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 84 transitions. [2018-10-10 15:36:11,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-10-10 15:36:11,803 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:36:11,804 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-10 15:36:11,804 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:36:11,805 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:36:11,805 INFO L82 PathProgramCache]: Analyzing trace with hash 795012811, now seen corresponding path program 1 times [2018-10-10 15:36:11,806 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:36:11,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:36:11,874 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:36:11,875 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:36:11,875 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-10 15:36:11,877 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-10 15:36:11,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-10 15:36:11,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-10 15:36:11,878 INFO L87 Difference]: Start difference. First operand 82 states and 84 transitions. Second operand 4 states. [2018-10-10 15:36:11,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:36:11,971 INFO L93 Difference]: Finished difference Result 128 states and 130 transitions. [2018-10-10 15:36:11,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-10 15:36:11,971 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 48 [2018-10-10 15:36:11,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:36:11,975 INFO L225 Difference]: With dead ends: 128 [2018-10-10 15:36:11,975 INFO L226 Difference]: Without dead ends: 128 [2018-10-10 15:36:11,979 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-10 15:36:11,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2018-10-10 15:36:11,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 84. [2018-10-10 15:36:11,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-10-10 15:36:11,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 86 transitions. [2018-10-10 15:36:11,992 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 86 transitions. Word has length 48 [2018-10-10 15:36:11,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:36:11,992 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 86 transitions. [2018-10-10 15:36:11,993 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-10 15:36:11,993 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 86 transitions. [2018-10-10 15:36:11,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-10-10 15:36:11,996 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:36:11,997 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:36:11,997 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:36:11,997 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:36:11,997 INFO L82 PathProgramCache]: Analyzing trace with hash 25728467, now seen corresponding path program 1 times [2018-10-10 15:36:11,998 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:36:12,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:36:12,660 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-10-10 15:36:12,660 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:36:12,660 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-10-10 15:36:12,661 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-10-10 15:36:12,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-10-10 15:36:12,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2018-10-10 15:36:12,662 INFO L87 Difference]: Start difference. First operand 84 states and 86 transitions. Second operand 18 states. [2018-10-10 15:36:14,073 WARN L178 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2018-10-10 15:36:14,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:36:14,692 INFO L93 Difference]: Finished difference Result 122 states and 125 transitions. [2018-10-10 15:36:14,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-10-10 15:36:14,698 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 71 [2018-10-10 15:36:14,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:36:14,700 INFO L225 Difference]: With dead ends: 122 [2018-10-10 15:36:14,700 INFO L226 Difference]: Without dead ends: 122 [2018-10-10 15:36:14,703 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=341, Invalid=919, Unknown=0, NotChecked=0, Total=1260 [2018-10-10 15:36:14,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2018-10-10 15:36:14,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 113. [2018-10-10 15:36:14,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-10-10 15:36:14,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 116 transitions. [2018-10-10 15:36:14,723 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 116 transitions. Word has length 71 [2018-10-10 15:36:14,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:36:14,724 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 116 transitions. [2018-10-10 15:36:14,724 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-10-10 15:36:14,724 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 116 transitions. [2018-10-10 15:36:14,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-10-10 15:36:14,728 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:36:14,729 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-10 15:36:14,729 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:36:14,730 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:36:14,730 INFO L82 PathProgramCache]: Analyzing trace with hash 455512526, now seen corresponding path program 2 times [2018-10-10 15:36:14,731 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:36:14,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:36:14,882 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 59 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-10-10 15:36:14,882 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:36:14,882 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2018-10-10 15:36:14,883 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-10 15:36:14,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-10 15:36:14,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-10-10 15:36:14,884 INFO L87 Difference]: Start difference. First operand 113 states and 116 transitions. Second operand 8 states. [2018-10-10 15:36:15,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:36:15,054 INFO L93 Difference]: Finished difference Result 257 states and 261 transitions. [2018-10-10 15:36:15,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-10 15:36:15,058 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 100 [2018-10-10 15:36:15,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:36:15,061 INFO L225 Difference]: With dead ends: 257 [2018-10-10 15:36:15,061 INFO L226 Difference]: Without dead ends: 249 [2018-10-10 15:36:15,062 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2018-10-10 15:36:15,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2018-10-10 15:36:15,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 182. [2018-10-10 15:36:15,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2018-10-10 15:36:15,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 186 transitions. [2018-10-10 15:36:15,089 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 186 transitions. Word has length 100 [2018-10-10 15:36:15,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:36:15,090 INFO L481 AbstractCegarLoop]: Abstraction has 182 states and 186 transitions. [2018-10-10 15:36:15,093 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-10 15:36:15,093 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 186 transitions. [2018-10-10 15:36:15,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-10-10 15:36:15,096 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:36:15,096 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2018-10-10 15:36:15,100 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:36:15,100 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:36:15,100 INFO L82 PathProgramCache]: Analyzing trace with hash 678404968, now seen corresponding path program 3 times [2018-10-10 15:36:15,101 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:36:15,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:36:15,877 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 6 proven. 156 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2018-10-10 15:36:15,877 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:36:15,877 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-10-10 15:36:15,878 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-10-10 15:36:15,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-10-10 15:36:15,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2018-10-10 15:36:15,879 INFO L87 Difference]: Start difference. First operand 182 states and 186 transitions. Second operand 20 states. [2018-10-10 15:36:18,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:36:18,209 INFO L93 Difference]: Finished difference Result 187 states and 190 transitions. [2018-10-10 15:36:18,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-10-10 15:36:18,211 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 146 [2018-10-10 15:36:18,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:36:18,213 INFO L225 Difference]: With dead ends: 187 [2018-10-10 15:36:18,213 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 15:36:18,214 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=423, Invalid=1217, Unknown=0, NotChecked=0, Total=1640 [2018-10-10 15:36:18,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 15:36:18,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 15:36:18,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 15:36:18,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 15:36:18,216 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 146 [2018-10-10 15:36:18,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:36:18,216 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 15:36:18,216 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-10-10 15:36:18,216 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 15:36:18,216 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 15:36:18,222 INFO L202 PluginConnector]: Adding new model java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 03:36:18 BoogieIcfgContainer [2018-10-10 15:36:18,222 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 15:36:18,223 INFO L168 Benchmark]: Toolchain (without parser) took 10363.54 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 24.6 MB). Free memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: 298.3 MB). Peak memory consumption was 322.9 MB. Max. memory is 7.1 GB. [2018-10-10 15:36:18,224 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.17 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. [2018-10-10 15:36:18,225 INFO L168 Benchmark]: Boogie Preprocessor took 55.82 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. [2018-10-10 15:36:18,226 INFO L168 Benchmark]: RCFGBuilder took 637.52 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. [2018-10-10 15:36:18,227 INFO L168 Benchmark]: TraceAbstraction took 9666.13 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 24.6 MB). Free memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: 279.3 MB). Peak memory consumption was 303.9 MB. Max. memory is 7.1 GB. [2018-10-10 15:36:18,231 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 0.17 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 55.82 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 637.52 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9666.13 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 24.6 MB). Free memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: 279.3 MB). Peak memory consumption was 303.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 123]: 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, 59 locations, 1 error locations. SAFE Result, 9.6s OverallTime, 5 OverallIterations, 5 TraceHistogramMax, 6.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 255 SDtfs, 2195 SDslu, 1050 SDs, 0 SdLazy, 946 SolverSat, 86 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=182occurred in iteration=4, 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, 5 MinimizatonAttempts, 133 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 407 NumberOfCodeBlocks, 407 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 402 ConstructedInterpolants, 0 QuantifiedInterpolants, 387394 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 116/288 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_10.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-10_15-36-18-242.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_10.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-10_15-36-18-242.csv Received shutdown request...