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 0.1.23-093a8c0 [2018-10-14 16:43:31,370 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 16:43:31,372 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 16:43:31,385 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-14 16:43:31,385 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-14 16:43:31,386 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-14 16:43:31,387 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-14 16:43:31,390 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-14 16:43:31,392 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-14 16:43:31,400 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-14 16:43:31,401 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-14 16:43:31,401 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-14 16:43:31,402 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-14 16:43:31,403 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-14 16:43:31,406 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-14 16:43:31,407 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-14 16:43:31,408 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-14 16:43:31,409 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-14 16:43:31,411 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-14 16:43:31,413 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-14 16:43:31,414 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-14 16:43:31,415 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-14 16:43:31,417 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-14 16:43:31,417 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-14 16:43:31,417 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-14 16:43:31,418 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-14 16:43:31,419 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-14 16:43:31,420 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-14 16:43:31,420 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-14 16:43:31,421 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-14 16:43:31,421 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-14 16:43:31,422 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-14 16:43:31,424 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-14 16:43:31,440 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 16:43:31,440 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 16:43:31,441 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 16:43:31,441 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 16:43:31,442 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 16:43:31,443 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 16:43:31,443 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 16:43:31,443 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 16:43:31,444 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 16:43:31,444 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 16:43:31,444 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 16:43:31,444 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 16:43:31,444 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 16:43:31,445 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 16:43:31,446 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 16:43:31,505 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 16:43:31,518 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 16:43:31,522 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 16:43:31,523 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 16:43:31,525 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 16:43:31,526 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_10.bpl [2018-10-14 16:43:31,526 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_10.bpl' [2018-10-14 16:43:31,597 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 16:43:31,598 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-14 16:43:31,599 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 16:43:31,599 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 16:43:31,599 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 16:43:31,622 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 14.10 04:43:31" (1/1) ... [2018-10-14 16:43:31,623 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 14.10 04:43:31" (1/1) ... [2018-10-14 16:43:31,636 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 14.10 04:43:31" (1/1) ... [2018-10-14 16:43:31,636 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 14.10 04:43:31" (1/1) ... [2018-10-14 16:43:31,640 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 14.10 04:43:31" (1/1) ... [2018-10-14 16:43:31,642 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 14.10 04:43:31" (1/1) ... [2018-10-14 16:43:31,644 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 14.10 04:43:31" (1/1) ... [2018-10-14 16:43:31,646 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 16:43:31,647 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 16:43:31,648 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 16:43:31,648 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 16:43:31,649 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 14.10 04:43:31" (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 [2018-10-14 16:43:31,708 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 16:43:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 16:43:31,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 16:43:32,208 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 16:43:32,209 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 14.10 04:43:32 BoogieIcfgContainer [2018-10-14 16:43:32,209 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 16:43:32,210 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 16:43:32,210 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 16:43:32,214 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 16:43:32,214 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 14.10 04:43:31" (1/2) ... [2018-10-14 16:43:32,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f5f77c2 and model type java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:43:32, skipping insertion in model container [2018-10-14 16:43:32,216 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 14.10 04:43:32" (2/2) ... [2018-10-14 16:43:32,218 INFO L112 eAbstractionObserver]: Analyzing ICFG java_BubbleSort-alloca_true-valid-memsafety_true-termination.i_10.bpl [2018-10-14 16:43:32,228 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 16:43:32,236 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 16:43:32,254 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 16:43:32,283 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 16:43:32,284 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 16:43:32,284 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 16:43:32,284 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 16:43:32,284 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 16:43:32,284 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 16:43:32,284 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 16:43:32,285 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 16:43:32,285 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 16:43:32,303 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states. [2018-10-14 16:43:32,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-10-14 16:43:32,313 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:43:32,314 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] [2018-10-14 16:43:32,316 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:43:32,321 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:43:32,322 INFO L82 PathProgramCache]: Analyzing trace with hash -1524595794, now seen corresponding path program 1 times [2018-10-14 16:43:32,385 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:43:32,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:43:33,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:43:33,566 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:43:33,567 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-10-14 16:43:33,572 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-10-14 16:43:33,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-10-14 16:43:33,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2018-10-14 16:43:33,592 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 15 states. [2018-10-14 16:43:34,249 WARN L179 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2018-10-14 16:43:34,413 WARN L179 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-10-14 16:43:35,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:43:35,680 INFO L93 Difference]: Finished difference Result 95 states and 99 transitions. [2018-10-14 16:43:35,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-10-14 16:43:35,683 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 42 [2018-10-14 16:43:35,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:43:35,697 INFO L225 Difference]: With dead ends: 95 [2018-10-14 16:43:35,698 INFO L226 Difference]: Without dead ends: 95 [2018-10-14 16:43:35,701 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=256, Invalid=556, Unknown=0, NotChecked=0, Total=812 [2018-10-14 16:43:35,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2018-10-14 16:43:35,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 82. [2018-10-14 16:43:35,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-10-14 16:43:35,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 84 transitions. [2018-10-14 16:43:35,757 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 84 transitions. Word has length 42 [2018-10-14 16:43:35,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:43:35,758 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 84 transitions. [2018-10-14 16:43:35,758 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-10-14 16:43:35,758 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 84 transitions. [2018-10-14 16:43:35,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-10-14 16:43:35,760 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:43:35,761 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] [2018-10-14 16:43:35,761 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:43:35,761 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:43:35,762 INFO L82 PathProgramCache]: Analyzing trace with hash 795012811, now seen corresponding path program 1 times [2018-10-14 16:43:35,763 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:43:35,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:43:35,909 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:43:35,909 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:43:35,909 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-14 16:43:35,913 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-14 16:43:35,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-14 16:43:35,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-14 16:43:35,915 INFO L87 Difference]: Start difference. First operand 82 states and 84 transitions. Second operand 4 states. [2018-10-14 16:43:35,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:43:35,999 INFO L93 Difference]: Finished difference Result 128 states and 130 transitions. [2018-10-14 16:43:36,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-14 16:43:36,000 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 48 [2018-10-14 16:43:36,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:43:36,002 INFO L225 Difference]: With dead ends: 128 [2018-10-14 16:43:36,002 INFO L226 Difference]: Without dead ends: 128 [2018-10-14 16:43:36,003 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 [2018-10-14 16:43:36,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2018-10-14 16:43:36,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 84. [2018-10-14 16:43:36,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-10-14 16:43:36,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 86 transitions. [2018-10-14 16:43:36,014 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 86 transitions. Word has length 48 [2018-10-14 16:43:36,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:43:36,014 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 86 transitions. [2018-10-14 16:43:36,015 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-14 16:43:36,015 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 86 transitions. [2018-10-14 16:43:36,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-10-14 16:43:36,017 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:43:36,018 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] [2018-10-14 16:43:36,018 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:43:36,018 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:43:36,018 INFO L82 PathProgramCache]: Analyzing trace with hash 25728467, now seen corresponding path program 1 times [2018-10-14 16:43:36,019 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:43:36,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:43:36,737 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-10-14 16:43:36,738 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:43:36,738 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-10-14 16:43:36,739 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-10-14 16:43:36,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-10-14 16:43:36,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2018-10-14 16:43:36,740 INFO L87 Difference]: Start difference. First operand 84 states and 86 transitions. Second operand 18 states. [2018-10-14 16:43:37,809 WARN L179 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2018-10-14 16:43:38,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:43:38,316 INFO L93 Difference]: Finished difference Result 122 states and 125 transitions. [2018-10-14 16:43:38,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-10-14 16:43:38,321 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 71 [2018-10-14 16:43:38,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:43:38,323 INFO L225 Difference]: With dead ends: 122 [2018-10-14 16:43:38,323 INFO L226 Difference]: Without dead ends: 122 [2018-10-14 16:43:38,326 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 [2018-10-14 16:43:38,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2018-10-14 16:43:38,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 113. [2018-10-14 16:43:38,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-10-14 16:43:38,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 116 transitions. [2018-10-14 16:43:38,346 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 116 transitions. Word has length 71 [2018-10-14 16:43:38,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:43:38,347 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 116 transitions. [2018-10-14 16:43:38,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-10-14 16:43:38,347 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 116 transitions. [2018-10-14 16:43:38,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-10-14 16:43:38,350 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:43:38,352 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] [2018-10-14 16:43:38,352 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:43:38,353 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:43:38,353 INFO L82 PathProgramCache]: Analyzing trace with hash 455512526, now seen corresponding path program 2 times [2018-10-14 16:43:38,354 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:43:38,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:43:38,503 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 59 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-10-14 16:43:38,504 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:43:38,504 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2018-10-14 16:43:38,505 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-14 16:43:38,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-14 16:43:38,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-10-14 16:43:38,505 INFO L87 Difference]: Start difference. First operand 113 states and 116 transitions. Second operand 8 states. [2018-10-14 16:43:38,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:43:38,707 INFO L93 Difference]: Finished difference Result 257 states and 261 transitions. [2018-10-14 16:43:38,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-14 16:43:38,709 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 100 [2018-10-14 16:43:38,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:43:38,714 INFO L225 Difference]: With dead ends: 257 [2018-10-14 16:43:38,715 INFO L226 Difference]: Without dead ends: 249 [2018-10-14 16:43:38,715 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 [2018-10-14 16:43:38,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2018-10-14 16:43:38,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 182. [2018-10-14 16:43:38,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2018-10-14 16:43:38,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 186 transitions. [2018-10-14 16:43:38,742 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 186 transitions. Word has length 100 [2018-10-14 16:43:38,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:43:38,742 INFO L481 AbstractCegarLoop]: Abstraction has 182 states and 186 transitions. [2018-10-14 16:43:38,742 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-14 16:43:38,743 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 186 transitions. [2018-10-14 16:43:38,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-10-14 16:43:38,747 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:43:38,748 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] [2018-10-14 16:43:38,748 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:43:38,749 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:43:38,749 INFO L82 PathProgramCache]: Analyzing trace with hash 678404968, now seen corresponding path program 3 times [2018-10-14 16:43:38,750 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:43:38,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:43:39,404 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 6 proven. 156 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2018-10-14 16:43:39,404 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:43:39,404 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-10-14 16:43:39,405 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-10-14 16:43:39,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-10-14 16:43:39,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2018-10-14 16:43:39,406 INFO L87 Difference]: Start difference. First operand 182 states and 186 transitions. Second operand 20 states. [2018-10-14 16:43:42,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:43:42,048 INFO L93 Difference]: Finished difference Result 187 states and 190 transitions. [2018-10-14 16:43:42,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-10-14 16:43:42,049 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 146 [2018-10-14 16:43:42,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:43:42,050 INFO L225 Difference]: With dead ends: 187 [2018-10-14 16:43:42,050 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 16:43:42,051 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 [2018-10-14 16:43:42,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 16:43:42,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 16:43:42,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 16:43:42,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 16:43:42,052 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 146 [2018-10-14 16:43:42,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:43:42,053 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 16:43:42,053 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-10-14 16:43:42,053 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 16:43:42,053 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 16:43:42,058 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 14.10 04:43:42 BoogieIcfgContainer [2018-10-14 16:43:42,058 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 16:43:42,059 INFO L168 Benchmark]: Toolchain (without parser) took 10461.81 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 40.4 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 284.6 MB). Peak memory consumption was 324.9 MB. Max. memory is 7.1 GB. [2018-10-14 16:43:42,061 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. [2018-10-14 16:43:42,061 INFO L168 Benchmark]: Boogie Preprocessor took 47.33 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. [2018-10-14 16:43:42,062 INFO L168 Benchmark]: RCFGBuilder took 561.96 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. [2018-10-14 16:43:42,063 INFO L168 Benchmark]: TraceAbstraction took 9848.25 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 40.4 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 263.4 MB). Peak memory consumption was 303.8 MB. Max. memory is 7.1 GB. [2018-10-14 16:43:42,067 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 47.33 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 561.96 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 9848.25 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 40.4 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 263.4 MB). Peak memory consumption was 303.8 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, 9.7s OverallTime, 5 OverallIterations, 5 TraceHistogramMax, 6.6s 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, 5.6s 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, 2.5s 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-0-2018-10-14_16-43-42-078.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-0-2018-10-14_16-43-42-078.csv Received shutdown request...