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_cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-502d2f4 [2018-10-12 21:09:15,444 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-12 21:09:15,446 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-12 21:09:15,458 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-12 21:09:15,458 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-12 21:09:15,459 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-12 21:09:15,461 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-12 21:09:15,463 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-12 21:09:15,465 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-12 21:09:15,466 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-12 21:09:15,467 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-12 21:09:15,467 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-12 21:09:15,468 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-12 21:09:15,470 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-12 21:09:15,471 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-12 21:09:15,472 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-12 21:09:15,472 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-12 21:09:15,475 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-12 21:09:15,477 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-12 21:09:15,479 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-12 21:09:15,480 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-12 21:09:15,481 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-12 21:09:15,484 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-12 21:09:15,484 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-12 21:09:15,485 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-12 21:09:15,486 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-12 21:09:15,487 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-12 21:09:15,488 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-12 21:09:15,488 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-12 21:09:15,490 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-12 21:09:15,490 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-12 21:09:15,491 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-12 21:09:15,494 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 21:09:15,503 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-12 21:09:15,504 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-12 21:09:15,505 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-12 21:09:15,505 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-12 21:09:15,505 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-12 21:09:15,505 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-12 21:09:15,506 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-12 21:09:15,506 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-12 21:09:15,507 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-12 21:09:15,507 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-12 21:09:15,507 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-12 21:09:15,507 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-12 21:09:15,508 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-12 21:09:15,510 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-12 21:09:15,511 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-12 21:09:15,571 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-12 21:09:15,588 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-12 21:09:15,595 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-12 21:09:15,597 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-12 21:09:15,597 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-12 21:09:15,598 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl [2018-10-12 21:09:15,598 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl' [2018-10-12 21:09:15,698 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-12 21:09:15,700 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-12 21:09:15,700 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-12 21:09:15,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-12 21:09:15,701 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-12 21:09:15,731 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "openbsd_cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:09:15" (1/1) ... [2018-10-12 21:09:15,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "openbsd_cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:09:15" (1/1) ... [2018-10-12 21:09:15,752 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "openbsd_cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:09:15" (1/1) ... [2018-10-12 21:09:15,752 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "openbsd_cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:09:15" (1/1) ... [2018-10-12 21:09:15,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "openbsd_cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:09:15" (1/1) ... [2018-10-12 21:09:15,770 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "openbsd_cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:09:15" (1/1) ... [2018-10-12 21:09:15,772 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "openbsd_cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:09:15" (1/1) ... [2018-10-12 21:09:15,780 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-12 21:09:15,781 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-12 21:09:15,781 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-12 21:09:15,782 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-12 21:09:15,785 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "openbsd_cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:09:15" (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 21:09:15,854 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-12 21:09:15,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-12 21:09:15,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-12 21:09:16,432 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-12 21:09:16,433 INFO L202 PluginConnector]: Adding new model openbsd_cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:09:16 BoogieIcfgContainer [2018-10-12 21:09:16,433 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-12 21:09:16,434 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-12 21:09:16,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-12 21:09:16,437 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-12 21:09:16,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:09:15" (1/2) ... [2018-10-12 21:09:16,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10dbfacf and model type openbsd_cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 09:09:16, skipping insertion in model container [2018-10-12 21:09:16,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:09:16" (2/2) ... [2018-10-12 21:09:16,441 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl [2018-10-12 21:09:16,451 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-12 21:09:16,460 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-12 21:09:16,477 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-12 21:09:16,509 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-12 21:09:16,510 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-12 21:09:16,510 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-12 21:09:16,511 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-12 21:09:16,511 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-12 21:09:16,511 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-12 21:09:16,511 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-12 21:09:16,511 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-12 21:09:16,511 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-12 21:09:16,535 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states. [2018-10-12 21:09:16,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-10-12 21:09:16,550 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:09:16,551 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] [2018-10-12 21:09:16,552 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:09:16,560 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:09:16,563 INFO L82 PathProgramCache]: Analyzing trace with hash 468931470, now seen corresponding path program 1 times [2018-10-12 21:09:16,618 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:09:16,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:09:17,659 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 21:09:17,662 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 21:09:17,662 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-10-12 21:09:17,667 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-10-12 21:09:17,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-10-12 21:09:17,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2018-10-12 21:09:17,688 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 15 states. [2018-10-12 21:09:18,198 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-12 21:09:19,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:09:19,188 INFO L93 Difference]: Finished difference Result 110 states and 110 transitions. [2018-10-12 21:09:19,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-12 21:09:19,190 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 63 [2018-10-12 21:09:19,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:09:19,205 INFO L225 Difference]: With dead ends: 110 [2018-10-12 21:09:19,205 INFO L226 Difference]: Without dead ends: 110 [2018-10-12 21:09:19,208 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=191, Invalid=739, Unknown=0, NotChecked=0, Total=930 [2018-10-12 21:09:19,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2018-10-12 21:09:19,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 88. [2018-10-12 21:09:19,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2018-10-12 21:09:19,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 88 transitions. [2018-10-12 21:09:19,257 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 88 transitions. Word has length 63 [2018-10-12 21:09:19,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:09:19,258 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 88 transitions. [2018-10-12 21:09:19,258 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-10-12 21:09:19,259 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 88 transitions. [2018-10-12 21:09:19,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-10-12 21:09:19,262 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:09:19,262 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-12 21:09:19,263 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:09:19,263 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:09:19,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1285804963, now seen corresponding path program 1 times [2018-10-12 21:09:19,264 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:09:19,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:09:20,407 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 21:09:20,407 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 21:09:20,408 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-10-12 21:09:20,410 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-10-12 21:09:20,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-10-12 21:09:20,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=595, Unknown=0, NotChecked=0, Total=650 [2018-10-12 21:09:20,411 INFO L87 Difference]: Start difference. First operand 88 states and 88 transitions. Second operand 26 states. [2018-10-12 21:09:22,059 WARN L178 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 40 [2018-10-12 21:09:22,435 WARN L178 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2018-10-12 21:09:22,752 WARN L178 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2018-10-12 21:09:22,993 WARN L178 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2018-10-12 21:09:23,367 WARN L178 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2018-10-12 21:09:23,573 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2018-10-12 21:09:23,741 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2018-10-12 21:09:23,921 WARN L178 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2018-10-12 21:09:24,111 WARN L178 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2018-10-12 21:09:24,357 WARN L178 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2018-10-12 21:09:24,612 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2018-10-12 21:09:24,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:09:24,914 INFO L93 Difference]: Finished difference Result 134 states and 134 transitions. [2018-10-12 21:09:24,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-10-12 21:09:24,915 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 87 [2018-10-12 21:09:24,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:09:24,917 INFO L225 Difference]: With dead ends: 134 [2018-10-12 21:09:24,917 INFO L226 Difference]: Without dead ends: 134 [2018-10-12 21:09:24,920 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=598, Invalid=2158, Unknown=0, NotChecked=0, Total=2756 [2018-10-12 21:09:24,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2018-10-12 21:09:24,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 112. [2018-10-12 21:09:24,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-10-12 21:09:24,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 112 transitions. [2018-10-12 21:09:24,930 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 112 transitions. Word has length 87 [2018-10-12 21:09:24,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:09:24,931 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 112 transitions. [2018-10-12 21:09:24,931 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-10-12 21:09:24,931 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 112 transitions. [2018-10-12 21:09:24,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-10-12 21:09:24,935 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:09:24,935 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-12 21:09:24,936 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:09:24,936 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:09:24,936 INFO L82 PathProgramCache]: Analyzing trace with hash 919291948, now seen corresponding path program 2 times [2018-10-12 21:09:24,937 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:09:24,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:09:25,776 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 21:09:25,777 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 21:09:25,777 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-10-12 21:09:25,778 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-10-12 21:09:25,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-10-12 21:09:25,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=748, Unknown=0, NotChecked=0, Total=812 [2018-10-12 21:09:25,779 INFO L87 Difference]: Start difference. First operand 112 states and 112 transitions. Second operand 29 states. [2018-10-12 21:09:27,535 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2018-10-12 21:09:27,718 WARN L178 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2018-10-12 21:09:27,891 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2018-10-12 21:09:28,151 WARN L178 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2018-10-12 21:09:28,413 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2018-10-12 21:09:28,572 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2018-10-12 21:09:28,808 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2018-10-12 21:09:29,133 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2018-10-12 21:09:29,430 WARN L178 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2018-10-12 21:09:29,695 WARN L178 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2018-10-12 21:09:29,939 WARN L178 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2018-10-12 21:09:30,324 WARN L178 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2018-10-12 21:09:30,596 WARN L178 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2018-10-12 21:09:30,811 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2018-10-12 21:09:31,007 WARN L178 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2018-10-12 21:09:31,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:09:31,098 INFO L93 Difference]: Finished difference Result 132 states and 132 transitions. [2018-10-12 21:09:31,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-10-12 21:09:31,099 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 111 [2018-10-12 21:09:31,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:09:31,100 INFO L225 Difference]: With dead ends: 132 [2018-10-12 21:09:31,100 INFO L226 Difference]: Without dead ends: 0 [2018-10-12 21:09:31,102 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=800, Invalid=2860, Unknown=0, NotChecked=0, Total=3660 [2018-10-12 21:09:31,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-12 21:09:31,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-12 21:09:31,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-12 21:09:31,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-12 21:09:31,103 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 111 [2018-10-12 21:09:31,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:09:31,104 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-12 21:09:31,104 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-10-12 21:09:31,104 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-12 21:09:31,104 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-12 21:09:31,110 INFO L202 PluginConnector]: Adding new model openbsd_cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 09:09:31 BoogieIcfgContainer [2018-10-12 21:09:31,110 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-12 21:09:31,111 INFO L168 Benchmark]: Toolchain (without parser) took 15412.18 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 139.5 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 249.3 MB). Peak memory consumption was 388.8 MB. Max. memory is 7.1 GB. [2018-10-12 21:09:31,112 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-12 21:09:31,113 INFO L168 Benchmark]: Boogie Preprocessor took 80.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-12 21:09:31,113 INFO L168 Benchmark]: RCFGBuilder took 651.76 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-12 21:09:31,114 INFO L168 Benchmark]: TraceAbstraction took 14675.82 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 139.5 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 217.6 MB). Peak memory consumption was 357.1 MB. Max. memory is 7.1 GB. [2018-10-12 21:09:31,118 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 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 80.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 651.76 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14675.82 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 139.5 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 217.6 MB). Peak memory consumption was 357.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 148]: 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, 78 locations, 1 error locations. SAFE Result, 14.6s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 11.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 163 SDtfs, 2817 SDslu, 1415 SDs, 0 SdLazy, 1889 SolverSat, 152 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 154 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 807 ImplicationChecksByTransitivity, 10.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=112occurred 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, 44 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 261 NumberOfCodeBlocks, 261 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 258 ConstructedInterpolants, 0 QuantifiedInterpolants, 261656 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 2/60 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_cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-12_21-09-31-130.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-12_21-09-31-130.csv Received shutdown request...