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/array03-alloca_true-valid-memsafety_true-termination.i_8.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-093a8c0 [2018-10-14 16:35:18,676 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 16:35:18,679 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 16:35:18,692 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-14 16:35:18,692 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-14 16:35:18,694 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-14 16:35:18,695 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-14 16:35:18,697 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-14 16:35:18,698 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-14 16:35:18,699 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-14 16:35:18,700 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-14 16:35:18,700 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-14 16:35:18,701 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-14 16:35:18,702 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-14 16:35:18,703 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-14 16:35:18,704 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-14 16:35:18,705 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-14 16:35:18,707 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-14 16:35:18,709 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-14 16:35:18,710 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-14 16:35:18,711 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-14 16:35:18,713 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-14 16:35:18,715 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-14 16:35:18,724 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 16:35:18,741 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 16:35:18,742 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 16:35:18,742 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 16:35:18,743 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 16:35:18,743 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 16:35:18,743 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 16:35:18,744 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 16:35:18,744 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 16:35:18,744 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 16:35:18,744 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 16:35:18,745 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 16:35:18,745 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 16:35:18,745 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 16:35:18,746 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 16:35:18,746 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 16:35:18,805 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 16:35:18,822 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 16:35:18,828 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 16:35:18,830 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 16:35:18,831 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 16:35:18,831 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/array03-alloca_true-valid-memsafety_true-termination.i_8.bpl [2018-10-14 16:35:18,832 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/array03-alloca_true-valid-memsafety_true-termination.i_8.bpl' [2018-10-14 16:35:18,904 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 16:35:18,905 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-14 16:35:18,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 16:35:18,906 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 16:35:18,906 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 16:35:18,933 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "array03-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:35:18" (1/1) ... [2018-10-14 16:35:18,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "array03-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:35:18" (1/1) ... [2018-10-14 16:35:18,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "array03-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:35:18" (1/1) ... [2018-10-14 16:35:18,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "array03-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:35:18" (1/1) ... [2018-10-14 16:35:18,954 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "array03-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:35:18" (1/1) ... [2018-10-14 16:35:18,957 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "array03-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:35:18" (1/1) ... [2018-10-14 16:35:18,958 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "array03-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:35:18" (1/1) ... [2018-10-14 16:35:18,961 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 16:35:18,962 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 16:35:18,962 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 16:35:18,962 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 16:35:18,963 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "array03-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:35:18" (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 16:35:19,026 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 16:35:19,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 16:35:19,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 16:35:19,521 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 16:35:19,522 INFO L202 PluginConnector]: Adding new model array03-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:35:19 BoogieIcfgContainer [2018-10-14 16:35:19,522 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 16:35:19,524 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 16:35:19,525 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 16:35:19,528 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 16:35:19,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array03-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:35:18" (1/2) ... [2018-10-14 16:35:19,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73d96861 and model type array03-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:35:19, skipping insertion in model container [2018-10-14 16:35:19,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array03-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:35:19" (2/2) ... [2018-10-14 16:35:19,533 INFO L112 eAbstractionObserver]: Analyzing ICFG array03-alloca_true-valid-memsafety_true-termination.i_8.bpl [2018-10-14 16:35:19,543 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 16:35:19,554 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 16:35:19,572 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 16:35:19,605 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 16:35:19,606 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 16:35:19,606 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 16:35:19,606 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 16:35:19,606 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 16:35:19,607 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 16:35:19,608 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 16:35:19,608 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 16:35:19,608 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 16:35:19,630 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2018-10-14 16:35:19,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-10-14 16:35:19,646 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:35:19,648 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:35:19,649 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:35:19,657 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:35:19,657 INFO L82 PathProgramCache]: Analyzing trace with hash -1025506172, now seen corresponding path program 1 times [2018-10-14 16:35:19,723 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:35:19,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:35:20,306 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-10-14 16:35:20,500 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 16:35:20,503 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:35:20,503 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-10-14 16:35:20,509 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-14 16:35:20,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-14 16:35:20,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2018-10-14 16:35:20,529 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 12 states. [2018-10-14 16:35:21,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:35:21,552 INFO L93 Difference]: Finished difference Result 96 states and 96 transitions. [2018-10-14 16:35:21,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-14 16:35:21,555 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 55 [2018-10-14 16:35:21,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:35:21,568 INFO L225 Difference]: With dead ends: 96 [2018-10-14 16:35:21,569 INFO L226 Difference]: Without dead ends: 96 [2018-10-14 16:35:21,572 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2018-10-14 16:35:21,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-10-14 16:35:21,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 90. [2018-10-14 16:35:21,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2018-10-14 16:35:21,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 90 transitions. [2018-10-14 16:35:21,619 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 90 transitions. Word has length 55 [2018-10-14 16:35:21,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:35:21,620 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 90 transitions. [2018-10-14 16:35:21,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-14 16:35:21,621 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 90 transitions. [2018-10-14 16:35:21,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-10-14 16:35:21,624 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:35:21,624 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2018-10-14 16:35:21,625 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:35:21,625 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:35:21,626 INFO L82 PathProgramCache]: Analyzing trace with hash -1936860139, now seen corresponding path program 1 times [2018-10-14 16:35:21,627 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:35:21,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:35:22,049 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:35:22,050 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:35:22,050 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-10-14 16:35:22,056 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-14 16:35:22,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-14 16:35:22,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2018-10-14 16:35:22,057 INFO L87 Difference]: Start difference. First operand 90 states and 90 transitions. Second operand 14 states. [2018-10-14 16:35:23,217 WARN L179 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2018-10-14 16:35:23,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:35:23,365 INFO L93 Difference]: Finished difference Result 156 states and 156 transitions. [2018-10-14 16:35:23,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-14 16:35:23,366 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 89 [2018-10-14 16:35:23,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:35:23,369 INFO L225 Difference]: With dead ends: 156 [2018-10-14 16:35:23,370 INFO L226 Difference]: Without dead ends: 156 [2018-10-14 16:35:23,371 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=191, Invalid=511, Unknown=0, NotChecked=0, Total=702 [2018-10-14 16:35:23,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2018-10-14 16:35:23,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 124. [2018-10-14 16:35:23,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-10-14 16:35:23,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 124 transitions. [2018-10-14 16:35:23,390 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 124 transitions. Word has length 89 [2018-10-14 16:35:23,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:35:23,390 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 124 transitions. [2018-10-14 16:35:23,391 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-14 16:35:23,391 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 124 transitions. [2018-10-14 16:35:23,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-10-14 16:35:23,395 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:35:23,396 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 16:35:23,396 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:35:23,396 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:35:23,397 INFO L82 PathProgramCache]: Analyzing trace with hash -188051610, now seen corresponding path program 2 times [2018-10-14 16:35:23,398 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:35:23,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:35:24,036 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 26 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:35:24,037 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:35:24,037 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-10-14 16:35:24,038 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-14 16:35:24,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-14 16:35:24,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2018-10-14 16:35:24,039 INFO L87 Difference]: Start difference. First operand 124 states and 124 transitions. Second operand 16 states. [2018-10-14 16:35:25,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:35:25,022 INFO L93 Difference]: Finished difference Result 154 states and 154 transitions. [2018-10-14 16:35:25,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-10-14 16:35:25,032 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 123 [2018-10-14 16:35:25,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:35:25,033 INFO L225 Difference]: With dead ends: 154 [2018-10-14 16:35:25,033 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 16:35:25,034 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=322, Invalid=868, Unknown=0, NotChecked=0, Total=1190 [2018-10-14 16:35:25,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 16:35:25,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 16:35:25,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 16:35:25,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 16:35:25,040 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 123 [2018-10-14 16:35:25,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:35:25,040 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 16:35:25,041 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-10-14 16:35:25,041 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 16:35:25,041 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 16:35:25,047 INFO L202 PluginConnector]: Adding new model array03-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 04:35:25 BoogieIcfgContainer [2018-10-14 16:35:25,047 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 16:35:25,048 INFO L168 Benchmark]: Toolchain (without parser) took 6143.09 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.1 GB in the end (delta: 404.4 MB). Peak memory consumption was 404.4 MB. Max. memory is 7.1 GB. [2018-10-14 16:35:25,049 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.18 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. [2018-10-14 16:35:25,050 INFO L168 Benchmark]: Boogie Preprocessor took 55.24 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. [2018-10-14 16:35:25,051 INFO L168 Benchmark]: RCFGBuilder took 560.50 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-14 16:35:25,054 INFO L168 Benchmark]: TraceAbstraction took 5523.26 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 372.7 MB). Peak memory consumption was 372.7 MB. Max. memory is 7.1 GB. [2018-10-14 16:35:25,059 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 0.18 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 55.24 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 560.50 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5523.26 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 372.7 MB). Peak memory consumption was 372.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 125]: 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, 65 locations, 1 error locations. SAFE Result, 5.4s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 3.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 225 SDtfs, 1729 SDslu, 805 SDs, 0 SdLazy, 626 SolverSat, 68 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=124occurred 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, 38 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 267 NumberOfCodeBlocks, 267 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 264 ConstructedInterpolants, 0 QuantifiedInterpolants, 177086 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 26/115 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/array03-alloca_true-valid-memsafety_true-termination.i_8.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-14_16-35-25-076.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/array03-alloca_true-valid-memsafety_true-termination.i_8.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-14_16-35-25-076.csv Received shutdown request...