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_14.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-502d2f4 [2018-10-12 21:10:09,163 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-12 21:10:09,165 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-12 21:10:09,183 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-12 21:10:09,184 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-12 21:10:09,184 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-12 21:10:09,186 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-12 21:10:09,188 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-12 21:10:09,192 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-12 21:10:09,193 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-12 21:10:09,194 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-12 21:10:09,194 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-12 21:10:09,196 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-12 21:10:09,204 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-12 21:10:09,205 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-12 21:10:09,205 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-12 21:10:09,208 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-12 21:10:09,213 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-12 21:10:09,214 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-12 21:10:09,218 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-12 21:10:09,219 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-12 21:10:09,223 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-12 21:10:09,225 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-12 21:10:09,225 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-12 21:10:09,226 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-12 21:10:09,226 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-12 21:10:09,229 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-12 21:10:09,230 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-12 21:10:09,231 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-12 21:10:09,233 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-12 21:10:09,234 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-12 21:10:09,234 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-12 21:10:09,235 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-12 21:10:09,236 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-12 21:10:09,237 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-12 21:10:09,237 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-12 21:10:09,237 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 21:10:09,251 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-12 21:10:09,251 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-12 21:10:09,252 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-12 21:10:09,252 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-12 21:10:09,252 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-12 21:10:09,252 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-12 21:10:09,253 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-12 21:10:09,253 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-12 21:10:09,254 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-12 21:10:09,254 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-12 21:10:09,254 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-12 21:10:09,254 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-12 21:10:09,254 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-12 21:10:09,255 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-12 21:10:09,255 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-12 21:10:09,316 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-12 21:10:09,330 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-12 21:10:09,336 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-12 21:10:09,338 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-12 21:10:09,339 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-12 21:10:09,339 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i_14.bpl [2018-10-12 21:10:09,340 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i_14.bpl' [2018-10-12 21:10:09,411 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-12 21:10:09,412 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-12 21:10:09,413 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-12 21:10:09,413 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-12 21:10:09,413 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-12 21:10:09,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:10:09" (1/1) ... [2018-10-12 21:10:09,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:10:09" (1/1) ... [2018-10-12 21:10:09,456 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:10:09" (1/1) ... [2018-10-12 21:10:09,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:10:09" (1/1) ... [2018-10-12 21:10:09,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:10:09" (1/1) ... [2018-10-12 21:10:09,465 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:10:09" (1/1) ... [2018-10-12 21:10:09,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:10:09" (1/1) ... [2018-10-12 21:10:09,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-12 21:10:09,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-12 21:10:09,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-12 21:10:09,471 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-12 21:10:09,472 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:10:09" (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 21:10:09,545 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-12 21:10:09,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-12 21:10:09,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-12 21:10:10,283 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-12 21:10:10,284 INFO L202 PluginConnector]: Adding new model openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:10:10 BoogieIcfgContainer [2018-10-12 21:10:10,284 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-12 21:10:10,286 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-12 21:10:10,287 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-12 21:10:10,290 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-12 21:10:10,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:10:09" (1/2) ... [2018-10-12 21:10:10,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3adeeb65 and model type openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 09:10:10, skipping insertion in model container [2018-10-12 21:10:10,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:10:10" (2/2) ... [2018-10-12 21:10:10,294 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i_14.bpl [2018-10-12 21:10:10,305 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-12 21:10:10,314 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-12 21:10:10,329 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-12 21:10:10,358 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-12 21:10:10,359 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-12 21:10:10,359 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-12 21:10:10,360 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-12 21:10:10,360 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-12 21:10:10,360 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-12 21:10:10,360 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-12 21:10:10,360 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-12 21:10:10,360 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-12 21:10:10,382 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states. [2018-10-12 21:10:10,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-10-12 21:10:10,394 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:10:10,395 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 21:10:10,396 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:10:10,402 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:10:10,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1174391736, now seen corresponding path program 1 times [2018-10-12 21:10:10,451 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:10:10,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:10:11,911 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-12 21:10:12,262 WARN L178 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-10-12 21:10:12,646 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 21:10:12,649 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 21:10:12,649 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2018-10-12 21:10:12,654 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-10-12 21:10:12,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-10-12 21:10:12,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=491, Unknown=0, NotChecked=0, Total=552 [2018-10-12 21:10:12,673 INFO L87 Difference]: Start difference. First operand 97 states. Second operand 24 states. [2018-10-12 21:10:14,886 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2018-10-12 21:10:15,637 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2018-10-12 21:10:15,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:10:15,836 INFO L93 Difference]: Finished difference Result 134 states and 134 transitions. [2018-10-12 21:10:15,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-10-12 21:10:15,839 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 87 [2018-10-12 21:10:15,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:10:15,854 INFO L225 Difference]: With dead ends: 134 [2018-10-12 21:10:15,854 INFO L226 Difference]: Without dead ends: 121 [2018-10-12 21:10:15,857 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=356, Invalid=1806, Unknown=0, NotChecked=0, Total=2162 [2018-10-12 21:10:15,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2018-10-12 21:10:15,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 116. [2018-10-12 21:10:15,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2018-10-12 21:10:15,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 116 transitions. [2018-10-12 21:10:15,906 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 116 transitions. Word has length 87 [2018-10-12 21:10:15,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:10:15,907 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 116 transitions. [2018-10-12 21:10:15,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-10-12 21:10:15,908 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 116 transitions. [2018-10-12 21:10:15,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-10-12 21:10:15,912 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:10:15,912 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:10:15,913 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:10:15,913 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:10:15,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1198982570, now seen corresponding path program 1 times [2018-10-12 21:10:15,915 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:10:15,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:10:17,073 WARN L178 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-10-12 21:10:17,652 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 21:10:17,652 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 21:10:17,652 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-10-12 21:10:17,657 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-10-12 21:10:17,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-10-12 21:10:17,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=750, Unknown=0, NotChecked=0, Total=812 [2018-10-12 21:10:17,658 INFO L87 Difference]: Start difference. First operand 116 states and 116 transitions. Second operand 29 states. [2018-10-12 21:10:18,556 WARN L178 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-10-12 21:10:19,810 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2018-10-12 21:10:20,226 WARN L178 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2018-10-12 21:10:20,824 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2018-10-12 21:10:21,436 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2018-10-12 21:10:21,636 WARN L178 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 60 [2018-10-12 21:10:21,821 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2018-10-12 21:10:22,014 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2018-10-12 21:10:22,358 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2018-10-12 21:10:22,718 WARN L178 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2018-10-12 21:10:23,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:10:23,006 INFO L93 Difference]: Finished difference Result 119 states and 119 transitions. [2018-10-12 21:10:23,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-10-12 21:10:23,007 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 115 [2018-10-12 21:10:23,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:10:23,009 INFO L225 Difference]: With dead ends: 119 [2018-10-12 21:10:23,009 INFO L226 Difference]: Without dead ends: 0 [2018-10-12 21:10:23,012 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=439, Invalid=2867, Unknown=0, NotChecked=0, Total=3306 [2018-10-12 21:10:23,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-12 21:10:23,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-12 21:10:23,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-12 21:10:23,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-12 21:10:23,013 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 115 [2018-10-12 21:10:23,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:10:23,013 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-12 21:10:23,014 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-10-12 21:10:23,014 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-12 21:10:23,014 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-12 21:10:23,020 INFO L202 PluginConnector]: Adding new model openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 09:10:23 BoogieIcfgContainer [2018-10-12 21:10:23,020 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-12 21:10:23,021 INFO L168 Benchmark]: Toolchain (without parser) took 13609.59 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 39.3 MB). Free memory was 1.5 GB in the beginning and 899.4 MB in the end (delta: 551.5 MB). Peak memory consumption was 590.9 MB. Max. memory is 7.1 GB. [2018-10-12 21:10:23,022 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 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 21:10:23,023 INFO L168 Benchmark]: Boogie Preprocessor took 57.60 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 21:10:23,023 INFO L168 Benchmark]: RCFGBuilder took 813.40 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 21:10:23,025 INFO L168 Benchmark]: TraceAbstraction took 12734.45 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 39.3 MB). Free memory was 1.4 GB in the beginning and 899.4 MB in the end (delta: 519.8 MB). Peak memory consumption was 559.1 MB. Max. memory is 7.1 GB. [2018-10-12 21:10:23,029 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 57.60 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 813.40 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 12734.45 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 39.3 MB). Free memory was 1.4 GB in the beginning and 899.4 MB in the end (delta: 519.8 MB). Peak memory consumption was 559.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 175]: 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, 97 locations, 1 error locations. SAFE Result, 12.6s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 8.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 128 SDtfs, 1260 SDslu, 1906 SDs, 0 SdLazy, 1740 SolverSat, 68 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 107 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 806 ImplicationChecksByTransitivity, 8.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=116occurred 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, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 202 NumberOfCodeBlocks, 202 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 200 ConstructedInterpolants, 0 QuantifiedInterpolants, 314264 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/21 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_14.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-12_21-10-23-040.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i_14.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-12_21-10-23-040.csv Received shutdown request...