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/openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i_13.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-502d2f4 [2018-10-12 21:10:05,691 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-12 21:10:05,692 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-12 21:10:05,704 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-12 21:10:05,705 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-12 21:10:05,706 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-12 21:10:05,707 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-12 21:10:05,709 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-12 21:10:05,710 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-12 21:10:05,711 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-12 21:10:05,712 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-12 21:10:05,712 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-12 21:10:05,713 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-12 21:10:05,717 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-12 21:10:05,719 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-12 21:10:05,719 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-12 21:10:05,720 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-12 21:10:05,722 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-12 21:10:05,725 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-12 21:10:05,730 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-12 21:10:05,731 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-12 21:10:05,732 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-12 21:10:05,736 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-12 21:10:05,748 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-12 21:10:05,749 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-12 21:10:05,750 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-12 21:10:05,752 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-12 21:10:05,753 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 21:10:05,766 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-12 21:10:05,766 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-12 21:10:05,767 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-12 21:10:05,767 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-12 21:10:05,768 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-12 21:10:05,768 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-12 21:10:05,768 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-12 21:10:05,769 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-12 21:10:05,769 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-12 21:10:05,769 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-12 21:10:05,769 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-12 21:10:05,769 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-12 21:10:05,770 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-12 21:10:05,770 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-12 21:10:05,771 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-12 21:10:05,831 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-12 21:10:05,844 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-12 21:10:05,848 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-12 21:10:05,849 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-12 21:10:05,850 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-12 21:10:05,851 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i_13.bpl [2018-10-12 21:10:05,851 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i_13.bpl' [2018-10-12 21:10:05,940 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-12 21:10:05,942 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-12 21:10:05,943 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-12 21:10:05,943 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-12 21:10:05,943 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-12 21:10:05,971 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:10:05" (1/1) ... [2018-10-12 21:10:05,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:10:05" (1/1) ... [2018-10-12 21:10:05,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:10:05" (1/1) ... [2018-10-12 21:10:05,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:10:05" (1/1) ... [2018-10-12 21:10:06,007 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:10:05" (1/1) ... [2018-10-12 21:10:06,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:10:05" (1/1) ... [2018-10-12 21:10:06,013 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:10:05" (1/1) ... [2018-10-12 21:10:06,023 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-12 21:10:06,025 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-12 21:10:06,025 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-12 21:10:06,025 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-12 21:10:06,026 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:10:05" (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 21:10:06,107 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-12 21:10:06,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-12 21:10:06,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-12 21:10:06,761 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-12 21:10:06,761 INFO L202 PluginConnector]: Adding new model openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:10:06 BoogieIcfgContainer [2018-10-12 21:10:06,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-12 21:10:06,762 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-12 21:10:06,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-12 21:10:06,766 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-12 21:10:06,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:10:05" (1/2) ... [2018-10-12 21:10:06,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d82088d and model type openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 09:10:06, skipping insertion in model container [2018-10-12 21:10:06,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:10:06" (2/2) ... [2018-10-12 21:10:06,769 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i_13.bpl [2018-10-12 21:10:06,778 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-12 21:10:06,786 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-12 21:10:06,800 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-12 21:10:06,828 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-12 21:10:06,829 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-12 21:10:06,829 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-12 21:10:06,829 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-12 21:10:06,829 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-12 21:10:06,830 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-12 21:10:06,830 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-12 21:10:06,830 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-12 21:10:06,830 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-12 21:10:06,856 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2018-10-12 21:10:06,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-10-12 21:10:06,868 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:10:06,869 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:10:06,870 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:10:06,875 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:10:06,875 INFO L82 PathProgramCache]: Analyzing trace with hash 735241267, now seen corresponding path program 1 times [2018-10-12 21:10:06,923 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:10:07,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:10:08,404 WARN L178 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-12 21:10:08,709 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-10-12 21:10:09,007 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 21:10:09,010 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 21:10:09,010 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2018-10-12 21:10:09,015 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-10-12 21:10:09,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-10-12 21:10:09,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=491, Unknown=0, NotChecked=0, Total=552 [2018-10-12 21:10:09,034 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 24 states. [2018-10-12 21:10:11,362 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2018-10-12 21:10:12,023 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2018-10-12 21:10:12,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:10:12,342 INFO L93 Difference]: Finished difference Result 116 states and 116 transitions. [2018-10-12 21:10:12,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-10-12 21:10:12,344 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 87 [2018-10-12 21:10:12,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:10:12,358 INFO L225 Difference]: With dead ends: 116 [2018-10-12 21:10:12,358 INFO L226 Difference]: Without dead ends: 116 [2018-10-12 21:10:12,361 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 399 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=370, Invalid=1886, Unknown=0, NotChecked=0, Total=2256 [2018-10-12 21:10:12,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2018-10-12 21:10:12,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 103. [2018-10-12 21:10:12,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2018-10-12 21:10:12,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 103 transitions. [2018-10-12 21:10:12,409 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 103 transitions. Word has length 87 [2018-10-12 21:10:12,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:10:12,410 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 103 transitions. [2018-10-12 21:10:12,410 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-10-12 21:10:12,410 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 103 transitions. [2018-10-12 21:10:12,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-10-12 21:10:12,414 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:10:12,414 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:10:12,415 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:10:12,415 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:10:12,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1560880365, now seen corresponding path program 1 times [2018-10-12 21:10:12,416 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:10:12,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:10:13,625 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-10-12 21:10:14,152 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 21:10:14,152 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 21:10:14,153 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-10-12 21:10:14,155 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-10-12 21:10:14,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-10-12 21:10:14,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=750, Unknown=0, NotChecked=0, Total=812 [2018-10-12 21:10:14,156 INFO L87 Difference]: Start difference. First operand 103 states and 103 transitions. Second operand 29 states. [2018-10-12 21:10:16,041 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2018-10-12 21:10:16,529 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2018-10-12 21:10:17,165 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2018-10-12 21:10:17,342 WARN L178 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2018-10-12 21:10:17,605 WARN L178 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2018-10-12 21:10:17,863 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2018-10-12 21:10:18,033 WARN L178 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2018-10-12 21:10:18,345 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2018-10-12 21:10:18,675 WARN L178 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2018-10-12 21:10:18,864 WARN L178 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2018-10-12 21:10:19,109 WARN L178 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2018-10-12 21:10:19,339 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2018-10-12 21:10:19,517 WARN L178 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2018-10-12 21:10:20,069 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2018-10-12 21:10:20,246 WARN L178 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2018-10-12 21:10:20,395 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2018-10-12 21:10:20,671 WARN L178 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2018-10-12 21:10:21,014 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2018-10-12 21:10:21,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:10:21,027 INFO L93 Difference]: Finished difference Result 114 states and 114 transitions. [2018-10-12 21:10:21,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-10-12 21:10:21,028 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 102 [2018-10-12 21:10:21,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:10:21,030 INFO L225 Difference]: With dead ends: 114 [2018-10-12 21:10:21,031 INFO L226 Difference]: Without dead ends: 0 [2018-10-12 21:10:21,033 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 615 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=595, Invalid=3565, Unknown=0, NotChecked=0, Total=4160 [2018-10-12 21:10:21,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-12 21:10:21,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-12 21:10:21,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-12 21:10:21,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-12 21:10:21,035 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 102 [2018-10-12 21:10:21,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:10:21,035 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-12 21:10:21,035 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-10-12 21:10:21,035 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-12 21:10:21,035 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-12 21:10:21,041 INFO L202 PluginConnector]: Adding new model openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 09:10:21 BoogieIcfgContainer [2018-10-12 21:10:21,041 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-12 21:10:21,042 INFO L168 Benchmark]: Toolchain (without parser) took 15101.08 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 124.8 MB). Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 43.8 MB). Peak memory consumption was 168.6 MB. Max. memory is 7.1 GB. [2018-10-12 21:10:21,043 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 21:10:21,044 INFO L168 Benchmark]: Boogie Preprocessor took 81.56 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 21:10:21,044 INFO L168 Benchmark]: RCFGBuilder took 736.82 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-12 21:10:21,045 INFO L168 Benchmark]: TraceAbstraction took 14278.71 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 124.8 MB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 12.1 MB). Peak memory consumption was 136.9 MB. Max. memory is 7.1 GB. [2018-10-12 21:10:21,049 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 81.56 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 736.82 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14278.71 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 124.8 MB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 12.1 MB). Peak memory consumption was 136.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 173]: 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, 95 locations, 1 error locations. SAFE Result, 14.2s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 10.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 121 SDtfs, 1005 SDslu, 1688 SDs, 0 SdLazy, 1799 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1014 ImplicationChecksByTransitivity, 9.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=103occurred in iteration=1, 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, 2 MinimizatonAttempts, 13 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 189 NumberOfCodeBlocks, 189 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 187 ConstructedInterpolants, 0 QuantifiedInterpolants, 261421 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/10 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/openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i_13.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-12_21-10-21-061.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i_13.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-12_21-10-21-061.csv Received shutdown request...