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/array01-alloca_true-valid-memsafety_true-termination.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-502d2f4 [2018-10-12 20:54:35,661 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-12 20:54:35,663 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-12 20:54:35,676 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-12 20:54:35,676 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-12 20:54:35,677 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-12 20:54:35,678 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-12 20:54:35,680 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-12 20:54:35,683 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-12 20:54:35,683 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-12 20:54:35,688 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-12 20:54:35,688 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-12 20:54:35,692 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-12 20:54:35,693 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-12 20:54:35,694 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-12 20:54:35,695 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-12 20:54:35,697 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-12 20:54:35,700 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-12 20:54:35,702 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-12 20:54:35,707 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-12 20:54:35,709 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-12 20:54:35,710 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-12 20:54:35,715 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-12 20:54:35,715 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-12 20:54:35,715 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-12 20:54:35,719 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-12 20:54:35,720 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-12 20:54:35,722 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-12 20:54:35,722 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-12 20:54:35,723 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-12 20:54:35,723 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-12 20:54:35,726 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-12 20:54:35,726 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-12 20:54:35,726 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-12 20:54:35,730 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-12 20:54:35,730 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-12 20:54:35,731 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-12 20:54:35,747 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-12 20:54:35,748 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-12 20:54:35,749 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-12 20:54:35,749 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-12 20:54:35,749 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-12 20:54:35,749 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-12 20:54:35,750 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-12 20:54:35,750 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-12 20:54:35,750 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-12 20:54:35,751 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-12 20:54:35,751 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-12 20:54:35,751 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-12 20:54:35,751 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-12 20:54:35,752 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-12 20:54:35,752 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-12 20:54:35,812 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-12 20:54:35,825 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-12 20:54:35,828 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-12 20:54:35,830 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-12 20:54:35,831 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-12 20:54:35,833 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/array01-alloca_true-valid-memsafety_true-termination.i_4.bpl [2018-10-12 20:54:35,834 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/array01-alloca_true-valid-memsafety_true-termination.i_4.bpl' [2018-10-12 20:54:35,894 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-12 20:54:35,896 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-12 20:54:35,897 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-12 20:54:35,897 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-12 20:54:35,897 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-12 20:54:35,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "array01-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:54:35" (1/1) ... [2018-10-12 20:54:35,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "array01-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:54:35" (1/1) ... [2018-10-12 20:54:35,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "array01-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:54:35" (1/1) ... [2018-10-12 20:54:35,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "array01-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:54:35" (1/1) ... [2018-10-12 20:54:35,945 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "array01-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:54:35" (1/1) ... [2018-10-12 20:54:35,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "array01-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:54:35" (1/1) ... [2018-10-12 20:54:35,948 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "array01-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:54:35" (1/1) ... [2018-10-12 20:54:35,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-12 20:54:35,951 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-12 20:54:35,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-12 20:54:35,951 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-12 20:54:35,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "array01-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:54:35" (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 [2018-10-12 20:54:36,026 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-12 20:54:36,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-12 20:54:36,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-12 20:54:36,513 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-12 20:54:36,514 INFO L202 PluginConnector]: Adding new model array01-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:54:36 BoogieIcfgContainer [2018-10-12 20:54:36,514 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-12 20:54:36,515 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-12 20:54:36,515 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-12 20:54:36,518 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-12 20:54:36,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array01-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:54:35" (1/2) ... [2018-10-12 20:54:36,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@614ffd0f and model type array01-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 08:54:36, skipping insertion in model container [2018-10-12 20:54:36,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array01-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:54:36" (2/2) ... [2018-10-12 20:54:36,523 INFO L112 eAbstractionObserver]: Analyzing ICFG array01-alloca_true-valid-memsafety_true-termination.i_4.bpl [2018-10-12 20:54:36,533 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-12 20:54:36,543 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-12 20:54:36,560 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-12 20:54:36,589 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-12 20:54:36,590 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-12 20:54:36,590 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-12 20:54:36,590 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-12 20:54:36,590 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-12 20:54:36,590 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-12 20:54:36,590 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-12 20:54:36,591 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-12 20:54:36,591 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-12 20:54:36,607 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2018-10-12 20:54:36,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-12 20:54:36,616 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:54:36,617 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] [2018-10-12 20:54:36,618 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:54:36,624 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:54:36,625 INFO L82 PathProgramCache]: Analyzing trace with hash 798520925, now seen corresponding path program 1 times [2018-10-12 20:54:36,677 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:54:36,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:54:37,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 20:54:37,412 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 20:54:37,413 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-10-12 20:54:37,418 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-12 20:54:37,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-12 20:54:37,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2018-10-12 20:54:37,438 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 12 states. [2018-10-12 20:54:38,761 WARN L178 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2018-10-12 20:54:38,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:54:38,824 INFO L93 Difference]: Finished difference Result 57 states and 57 transitions. [2018-10-12 20:54:38,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-12 20:54:38,827 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 33 [2018-10-12 20:54:38,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:54:38,840 INFO L225 Difference]: With dead ends: 57 [2018-10-12 20:54:38,840 INFO L226 Difference]: Without dead ends: 57 [2018-10-12 20:54:38,843 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=150, Invalid=312, Unknown=0, NotChecked=0, Total=462 [2018-10-12 20:54:38,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-10-12 20:54:38,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 48. [2018-10-12 20:54:38,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-10-12 20:54:38,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2018-10-12 20:54:38,886 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 33 [2018-10-12 20:54:38,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:54:38,887 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2018-10-12 20:54:38,887 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-12 20:54:38,887 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2018-10-12 20:54:38,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-10-12 20:54:38,889 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:54:38,890 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-12 20:54:38,890 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:54:38,890 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:54:38,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1541378607, now seen corresponding path program 1 times [2018-10-12 20:54:38,892 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:54:38,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:54:39,415 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 20:54:39,416 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 20:54:39,416 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-10-12 20:54:39,421 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-10-12 20:54:39,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-10-12 20:54:39,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2018-10-12 20:54:39,422 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand 15 states. [2018-10-12 20:54:40,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:54:40,977 INFO L93 Difference]: Finished difference Result 74 states and 74 transitions. [2018-10-12 20:54:40,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-10-12 20:54:40,979 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 47 [2018-10-12 20:54:40,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:54:40,981 INFO L225 Difference]: With dead ends: 74 [2018-10-12 20:54:40,981 INFO L226 Difference]: Without dead ends: 74 [2018-10-12 20:54:40,982 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=221, Invalid=535, Unknown=0, NotChecked=0, Total=756 [2018-10-12 20:54:40,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-10-12 20:54:40,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 62. [2018-10-12 20:54:40,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-10-12 20:54:40,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 62 transitions. [2018-10-12 20:54:40,991 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 62 transitions. Word has length 47 [2018-10-12 20:54:40,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:54:40,992 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 62 transitions. [2018-10-12 20:54:40,992 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-10-12 20:54:40,992 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 62 transitions. [2018-10-12 20:54:40,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-10-12 20:54:40,994 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:54:40,994 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2018-10-12 20:54:40,995 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:54:40,995 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:54:40,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1957148091, now seen corresponding path program 2 times [2018-10-12 20:54:40,996 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:54:41,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:54:41,470 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 20:54:41,471 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 20:54:41,471 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-10-12 20:54:41,471 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-10-12 20:54:41,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-10-12 20:54:41,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2018-10-12 20:54:41,473 INFO L87 Difference]: Start difference. First operand 62 states and 62 transitions. Second operand 18 states. [2018-10-12 20:54:42,099 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2018-10-12 20:54:42,372 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2018-10-12 20:54:43,022 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2018-10-12 20:54:43,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:54:43,293 INFO L93 Difference]: Finished difference Result 72 states and 72 transitions. [2018-10-12 20:54:43,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-10-12 20:54:43,295 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 61 [2018-10-12 20:54:43,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:54:43,297 INFO L225 Difference]: With dead ends: 72 [2018-10-12 20:54:43,298 INFO L226 Difference]: Without dead ends: 0 [2018-10-12 20:54:43,299 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=389, Invalid=943, Unknown=0, NotChecked=0, Total=1332 [2018-10-12 20:54:43,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-12 20:54:43,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-12 20:54:43,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-12 20:54:43,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-12 20:54:43,300 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2018-10-12 20:54:43,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:54:43,301 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-12 20:54:43,301 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-10-12 20:54:43,301 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-12 20:54:43,301 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-12 20:54:43,309 INFO L202 PluginConnector]: Adding new model array01-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 08:54:43 BoogieIcfgContainer [2018-10-12 20:54:43,309 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-12 20:54:43,310 INFO L168 Benchmark]: Toolchain (without parser) took 7415.41 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 19.4 MB). Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: -5.6 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2018-10-12 20:54:43,312 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 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. [2018-10-12 20:54:43,312 INFO L168 Benchmark]: Boogie Preprocessor took 53.87 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. [2018-10-12 20:54:43,314 INFO L168 Benchmark]: RCFGBuilder took 563.00 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. [2018-10-12 20:54:43,315 INFO L168 Benchmark]: TraceAbstraction took 6794.30 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 19.4 MB). Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: -26.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-12 20:54:43,320 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 0.21 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 53.87 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 563.00 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 6794.30 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 19.4 MB). Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: -26.8 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 101]: 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, 46 locations, 1 error locations. SAFE Result, 6.7s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 4.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 107 SDtfs, 1096 SDslu, 492 SDs, 0 SdLazy, 470 SolverSat, 49 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=62occurred 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, 21 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 138 ConstructedInterpolants, 0 QuantifiedInterpolants, 62272 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 2/26 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/array01-alloca_true-valid-memsafety_true-termination.i_4.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-12_20-54-43-337.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/array01-alloca_true-valid-memsafety_true-termination.i_4.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-12_20-54-43-337.csv Received shutdown request...