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_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b8f97f7-m [2018-10-10 15:42:12,364 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 15:42:12,366 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 15:42:12,378 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 15:42:12,379 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 15:42:12,380 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 15:42:12,381 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 15:42:12,383 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 15:42:12,385 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 15:42:12,386 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 15:42:12,387 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 15:42:12,387 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 15:42:12,388 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 15:42:12,389 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 15:42:12,390 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 15:42:12,391 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 15:42:12,392 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 15:42:12,394 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 15:42:12,396 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 15:42:12,397 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 15:42:12,399 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 15:42:12,400 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 15:42:12,402 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 15:42:12,403 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 15:42:12,403 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 15:42:12,404 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 15:42:12,405 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 15:42:12,406 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 15:42:12,407 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 15:42:12,408 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 15:42:12,408 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 15:42:12,409 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-10 15:42:12,409 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-10 15:42:12,409 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-10 15:42:12,410 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-10 15:42:12,411 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-10 15:42:12,412 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-10 15:42:12,421 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 15:42:12,421 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 15:42:12,422 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 15:42:12,423 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 15:42:12,423 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 15:42:12,423 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 15:42:12,424 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 15:42:12,424 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 15:42:12,424 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 15:42:12,424 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 15:42:12,425 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 15:42:12,425 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 15:42:12,425 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 15:42:12,426 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 15:42:12,426 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 15:42:12,470 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 15:42:12,483 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 15:42:12,486 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 15:42:12,488 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 15:42:12,488 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 15:42:12,489 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl [2018-10-10 15:42:12,490 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl' [2018-10-10 15:42:12,581 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 15:42:12,583 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-10 15:42:12,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 15:42:12,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 15:42:12,584 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 15:42:12,612 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:42:12" (1/1) ... [2018-10-10 15:42:12,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:42:12" (1/1) ... [2018-10-10 15:42:12,630 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:42:12" (1/1) ... [2018-10-10 15:42:12,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:42:12" (1/1) ... [2018-10-10 15:42:12,637 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:42:12" (1/1) ... [2018-10-10 15:42:12,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:42:12" (1/1) ... [2018-10-10 15:42:12,641 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:42:12" (1/1) ... [2018-10-10 15:42:12,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 15:42:12,644 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 15:42:12,645 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 15:42:12,645 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 15:42:12,646 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:42:12" (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 [2018-10-10 15:42:12,712 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 15:42:12,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 15:42:12,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 15:42:13,404 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 15:42:13,405 INFO L202 PluginConnector]: Adding new model openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:42:13 BoogieIcfgContainer [2018-10-10 15:42:13,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 15:42:13,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 15:42:13,407 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 15:42:13,410 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 15:42:13,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:42:12" (1/2) ... [2018-10-10 15:42:13,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c52c0b1 and model type openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 03:42:13, skipping insertion in model container [2018-10-10 15:42:13,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:42:13" (2/2) ... [2018-10-10 15:42:13,414 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl [2018-10-10 15:42:13,424 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 15:42:13,432 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 15:42:13,449 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 15:42:13,477 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 15:42:13,478 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 15:42:13,478 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 15:42:13,479 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 15:42:13,479 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 15:42:13,479 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 15:42:13,479 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 15:42:13,479 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 15:42:13,480 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 15:42:13,499 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states. [2018-10-10 15:42:13,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-10-10 15:42:13,511 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:42:13,512 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] [2018-10-10 15:42:13,513 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:42:13,519 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:42:13,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1602300283, now seen corresponding path program 1 times [2018-10-10 15:42:13,582 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:42:13,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:42:14,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:42:14,311 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:42:14,311 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-10-10 15:42:14,317 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-10 15:42:14,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-10 15:42:14,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-10-10 15:42:14,337 INFO L87 Difference]: Start difference. First operand 94 states. Second operand 13 states. [2018-10-10 15:42:15,487 WARN L178 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-10 15:42:15,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:42:15,994 INFO L93 Difference]: Finished difference Result 109 states and 109 transitions. [2018-10-10 15:42:15,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-10 15:42:15,998 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 67 [2018-10-10 15:42:15,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:42:16,012 INFO L225 Difference]: With dead ends: 109 [2018-10-10 15:42:16,012 INFO L226 Difference]: Without dead ends: 109 [2018-10-10 15:42:16,015 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=178, Invalid=472, Unknown=0, NotChecked=0, Total=650 [2018-10-10 15:42:16,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-10-10 15:42:16,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 97. [2018-10-10 15:42:16,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2018-10-10 15:42:16,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 97 transitions. [2018-10-10 15:42:16,062 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 97 transitions. Word has length 67 [2018-10-10 15:42:16,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:42:16,063 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 97 transitions. [2018-10-10 15:42:16,063 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-10 15:42:16,064 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 97 transitions. [2018-10-10 15:42:16,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-10-10 15:42:16,067 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:42:16,068 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2018-10-10 15:42:16,069 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:42:16,069 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:42:16,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1186301042, now seen corresponding path program 1 times [2018-10-10 15:42:16,071 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:42:16,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:42:16,888 WARN L178 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 26 [2018-10-10 15:42:17,871 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:42:17,871 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:42:17,872 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-10-10 15:42:17,874 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-10-10 15:42:17,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-10-10 15:42:17,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=750, Unknown=0, NotChecked=0, Total=812 [2018-10-10 15:42:17,875 INFO L87 Difference]: Start difference. First operand 97 states and 97 transitions. Second operand 29 states. [2018-10-10 15:42:19,474 WARN L178 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2018-10-10 15:42:19,636 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2018-10-10 15:42:20,124 WARN L178 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2018-10-10 15:42:20,523 WARN L178 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2018-10-10 15:42:20,701 WARN L178 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2018-10-10 15:42:20,916 WARN L178 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 79 [2018-10-10 15:42:21,148 WARN L178 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2018-10-10 15:42:21,378 WARN L178 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 89 [2018-10-10 15:42:21,734 WARN L178 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 95 [2018-10-10 15:42:22,012 WARN L178 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 98 [2018-10-10 15:42:22,291 WARN L178 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 101 [2018-10-10 15:42:22,540 WARN L178 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2018-10-10 15:42:22,907 WARN L178 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 84 [2018-10-10 15:42:23,139 WARN L178 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2018-10-10 15:42:23,601 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2018-10-10 15:42:23,794 WARN L178 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2018-10-10 15:42:23,950 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2018-10-10 15:42:24,147 WARN L178 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2018-10-10 15:42:24,321 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2018-10-10 15:42:24,572 WARN L178 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2018-10-10 15:42:24,834 WARN L178 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2018-10-10 15:42:24,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:42:24,885 INFO L93 Difference]: Finished difference Result 138 states and 138 transitions. [2018-10-10 15:42:24,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-10-10 15:42:24,892 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 96 [2018-10-10 15:42:24,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:42:24,898 INFO L225 Difference]: With dead ends: 138 [2018-10-10 15:42:24,898 INFO L226 Difference]: Without dead ends: 138 [2018-10-10 15:42:24,901 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=776, Invalid=3130, Unknown=0, NotChecked=0, Total=3906 [2018-10-10 15:42:24,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2018-10-10 15:42:24,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 126. [2018-10-10 15:42:24,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-10-10 15:42:24,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 126 transitions. [2018-10-10 15:42:24,925 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 126 transitions. Word has length 96 [2018-10-10 15:42:24,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:42:24,927 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 126 transitions. [2018-10-10 15:42:24,931 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-10-10 15:42:24,931 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 126 transitions. [2018-10-10 15:42:24,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-10-10 15:42:24,936 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:42:24,937 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:42:24,937 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:42:24,937 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:42:24,939 INFO L82 PathProgramCache]: Analyzing trace with hash -151977765, now seen corresponding path program 2 times [2018-10-10 15:42:24,939 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:42:24,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:42:26,701 WARN L178 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 22 [2018-10-10 15:42:27,842 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:42:27,842 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:42:27,842 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2018-10-10 15:42:27,843 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-10-10 15:42:27,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-10-10 15:42:27,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=1319, Unknown=0, NotChecked=0, Total=1406 [2018-10-10 15:42:27,845 INFO L87 Difference]: Start difference. First operand 126 states and 126 transitions. Second operand 38 states. [2018-10-10 15:42:29,390 WARN L178 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2018-10-10 15:42:29,555 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2018-10-10 15:42:29,858 WARN L178 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2018-10-10 15:42:30,493 WARN L178 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2018-10-10 15:42:30,668 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2018-10-10 15:42:31,263 WARN L178 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2018-10-10 15:42:31,521 WARN L178 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2018-10-10 15:42:31,815 WARN L178 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 79 [2018-10-10 15:42:32,115 WARN L178 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2018-10-10 15:42:32,497 WARN L178 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 94 [2018-10-10 15:42:32,861 WARN L178 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 96 [2018-10-10 15:42:33,339 WARN L178 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 87 [2018-10-10 15:42:33,610 WARN L178 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 85 [2018-10-10 15:42:34,095 WARN L178 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 100 [2018-10-10 15:42:34,417 WARN L178 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 94 [2018-10-10 15:42:34,802 WARN L178 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 108 [2018-10-10 15:42:35,260 WARN L178 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 105 [2018-10-10 15:42:35,699 WARN L178 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 108 [2018-10-10 15:42:36,109 WARN L178 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 111 [2018-10-10 15:42:36,529 WARN L178 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 114 [2018-10-10 15:42:36,832 WARN L178 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 96 [2018-10-10 15:42:37,136 WARN L178 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2018-10-10 15:42:37,376 WARN L178 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 83 [2018-10-10 15:42:37,715 WARN L178 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 80 [2018-10-10 15:42:38,047 WARN L178 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2018-10-10 15:42:38,408 WARN L178 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 76 [2018-10-10 15:42:38,655 WARN L178 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 82 [2018-10-10 15:42:38,899 WARN L178 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 76 [2018-10-10 15:42:39,158 WARN L178 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2018-10-10 15:42:39,567 WARN L178 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2018-10-10 15:42:39,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:42:39,842 INFO L93 Difference]: Finished difference Result 167 states and 167 transitions. [2018-10-10 15:42:39,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-10-10 15:42:39,843 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 125 [2018-10-10 15:42:39,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:42:39,846 INFO L225 Difference]: With dead ends: 167 [2018-10-10 15:42:39,846 INFO L226 Difference]: Without dead ends: 167 [2018-10-10 15:42:39,849 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 846 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=961, Invalid=5201, Unknown=0, NotChecked=0, Total=6162 [2018-10-10 15:42:39,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2018-10-10 15:42:39,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 155. [2018-10-10 15:42:39,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2018-10-10 15:42:39,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 155 transitions. [2018-10-10 15:42:39,861 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 155 transitions. Word has length 125 [2018-10-10 15:42:39,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:42:39,862 INFO L481 AbstractCegarLoop]: Abstraction has 155 states and 155 transitions. [2018-10-10 15:42:39,862 INFO L482 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-10-10 15:42:39,862 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 155 transitions. [2018-10-10 15:42:39,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-10-10 15:42:39,865 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:42:39,865 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:42:39,865 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:42:39,865 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:42:39,866 INFO L82 PathProgramCache]: Analyzing trace with hash -1098290926, now seen corresponding path program 3 times [2018-10-10 15:42:39,867 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:42:39,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:42:41,260 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-10-10 15:42:41,261 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:42:41,261 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2018-10-10 15:42:41,261 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-10-10 15:42:41,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-10-10 15:42:41,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1045, Unknown=0, NotChecked=0, Total=1122 [2018-10-10 15:42:41,262 INFO L87 Difference]: Start difference. First operand 155 states and 155 transitions. Second operand 34 states. [2018-10-10 15:42:43,505 WARN L178 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72 [2018-10-10 15:42:43,754 WARN L178 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2018-10-10 15:42:44,004 WARN L178 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 89 [2018-10-10 15:42:44,377 WARN L178 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 92 [2018-10-10 15:42:44,672 WARN L178 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 95 [2018-10-10 15:42:44,999 WARN L178 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 98 [2018-10-10 15:42:45,225 WARN L178 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2018-10-10 15:42:45,475 WARN L178 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 86 [2018-10-10 15:42:46,267 WARN L178 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2018-10-10 15:42:46,532 WARN L178 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2018-10-10 15:42:46,982 WARN L178 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 94 [2018-10-10 15:42:47,349 WARN L178 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 99 [2018-10-10 15:42:47,699 WARN L178 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 102 [2018-10-10 15:42:47,998 WARN L178 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 90 [2018-10-10 15:42:48,228 WARN L178 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2018-10-10 15:42:48,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:42:48,239 INFO L93 Difference]: Finished difference Result 153 states and 153 transitions. [2018-10-10 15:42:48,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2018-10-10 15:42:48,241 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 154 [2018-10-10 15:42:48,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:42:48,241 INFO L225 Difference]: With dead ends: 153 [2018-10-10 15:42:48,241 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 15:42:48,243 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 744 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=1029, Invalid=4373, Unknown=0, NotChecked=0, Total=5402 [2018-10-10 15:42:48,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 15:42:48,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 15:42:48,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 15:42:48,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 15:42:48,244 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 154 [2018-10-10 15:42:48,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:42:48,244 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 15:42:48,244 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-10-10 15:42:48,244 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 15:42:48,245 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 15:42:48,249 INFO L202 PluginConnector]: Adding new model openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 03:42:48 BoogieIcfgContainer [2018-10-10 15:42:48,249 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 15:42:48,251 INFO L168 Benchmark]: Toolchain (without parser) took 35668.97 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 370.1 MB). Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 85.4 MB). Peak memory consumption was 455.5 MB. Max. memory is 7.1 GB. [2018-10-10 15:42:48,252 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 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. [2018-10-10 15:42:48,252 INFO L168 Benchmark]: Boogie Preprocessor took 60.66 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. [2018-10-10 15:42:48,253 INFO L168 Benchmark]: RCFGBuilder took 761.03 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. [2018-10-10 15:42:48,254 INFO L168 Benchmark]: TraceAbstraction took 34842.73 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 370.1 MB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 53.7 MB). Peak memory consumption was 423.8 MB. Max. memory is 7.1 GB. [2018-10-10 15:42:48,257 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 0.19 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 60.66 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 761.03 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 34842.73 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 370.1 MB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 53.7 MB). Peak memory consumption was 423.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 167]: 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, 94 locations, 1 error locations. SAFE Result, 34.7s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 27.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 248 SDtfs, 3819 SDslu, 3370 SDs, 0 SdLazy, 3934 SolverSat, 130 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 252 GetRequests, 15 SyntacticMatches, 3 SemanticMatches, 234 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2104 ImplicationChecksByTransitivity, 26.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=155occurred in iteration=3, 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, 4 MinimizatonAttempts, 36 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 6.3s InterpolantComputationTime, 442 NumberOfCodeBlocks, 442 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 438 ConstructedInterpolants, 0 QuantifiedInterpolants, 796872 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 26/146 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_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-10_15-42-48-269.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-10_15-42-48-269.csv Received shutdown request...