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/20181015-LoopsPathprograms/veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2d08e6e [2018-10-15 12:46:11,472 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-15 12:46:11,474 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-15 12:46:11,488 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-15 12:46:11,488 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-15 12:46:11,489 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-15 12:46:11,490 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-15 12:46:11,492 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-15 12:46:11,494 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-15 12:46:11,495 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-15 12:46:11,496 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-15 12:46:11,496 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-15 12:46:11,497 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-15 12:46:11,498 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-15 12:46:11,499 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-15 12:46:11,500 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-15 12:46:11,501 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-15 12:46:11,502 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-15 12:46:11,504 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-15 12:46:11,506 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-15 12:46:11,507 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-15 12:46:11,508 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-15 12:46:11,511 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-15 12:46:11,520 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-15 12:46:11,530 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-15 12:46:11,530 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-15 12:46:11,531 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-15 12:46:11,531 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-15 12:46:11,532 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-15 12:46:11,532 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-15 12:46:11,532 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-15 12:46:11,533 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-15 12:46:11,533 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-15 12:46:11,533 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-15 12:46:11,533 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-15 12:46:11,534 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-15 12:46:11,534 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-15 12:46:11,535 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-15 12:46:11,535 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-15 12:46:11,582 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-15 12:46:11,595 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-15 12:46:11,599 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-15 12:46:11,601 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-15 12:46:11,601 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-15 12:46:11,602 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181015-LoopsPathprograms/veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl [2018-10-15 12:46:11,603 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181015-LoopsPathprograms/veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl' [2018-10-15 12:46:11,666 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-15 12:46:11,667 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-15 12:46:11,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-15 12:46:11,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-15 12:46:11,668 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-15 12:46:11,692 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:46:11" (1/1) ... [2018-10-15 12:46:11,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:46:11" (1/1) ... [2018-10-15 12:46:11,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:46:11" (1/1) ... [2018-10-15 12:46:11,708 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:46:11" (1/1) ... [2018-10-15 12:46:11,712 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:46:11" (1/1) ... [2018-10-15 12:46:11,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:46:11" (1/1) ... [2018-10-15 12:46:11,715 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:46:11" (1/1) ... [2018-10-15 12:46:11,717 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-15 12:46:11,718 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-15 12:46:11,718 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-15 12:46:11,718 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-15 12:46:11,719 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:46:11" (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 [2018-10-15 12:46:11,782 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-15 12:46:11,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-15 12:46:11,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-15 12:46:12,218 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-15 12:46:12,219 INFO L202 PluginConnector]: Adding new model veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:46:12 BoogieIcfgContainer [2018-10-15 12:46:12,219 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-15 12:46:12,221 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-15 12:46:12,221 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-15 12:46:12,224 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-15 12:46:12,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:46:11" (1/2) ... [2018-10-15 12:46:12,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c7eb99c and model type veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:46:12, skipping insertion in model container [2018-10-15 12:46:12,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:46:12" (2/2) ... [2018-10-15 12:46:12,229 INFO L112 eAbstractionObserver]: Analyzing ICFG veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl [2018-10-15 12:46:12,240 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-15 12:46:12,250 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-15 12:46:12,268 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-15 12:46:12,302 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-15 12:46:12,302 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-15 12:46:12,303 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-15 12:46:12,303 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-15 12:46:12,303 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-15 12:46:12,303 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-15 12:46:12,303 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-15 12:46:12,304 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-15 12:46:12,305 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-15 12:46:12,327 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2018-10-15 12:46:12,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-10-15 12:46:12,341 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 12:46:12,343 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] [2018-10-15 12:46:12,344 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 12:46:12,350 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 12:46:12,351 INFO L82 PathProgramCache]: Analyzing trace with hash 1682162137, now seen corresponding path program 1 times [2018-10-15 12:46:12,415 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 12:46:12,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 12:46:13,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 12:46:13,403 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-15 12:46:13,404 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-10-15 12:46:13,409 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-15 12:46:13,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-15 12:46:13,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-10-15 12:46:13,429 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 11 states. [2018-10-15 12:46:14,123 WARN L179 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 24 [2018-10-15 12:46:14,395 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 27 [2018-10-15 12:46:14,561 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 29 [2018-10-15 12:46:14,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 12:46:14,811 INFO L93 Difference]: Finished difference Result 56 states and 56 transitions. [2018-10-15 12:46:14,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-15 12:46:14,815 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 31 [2018-10-15 12:46:14,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 12:46:14,829 INFO L225 Difference]: With dead ends: 56 [2018-10-15 12:46:14,829 INFO L226 Difference]: Without dead ends: 56 [2018-10-15 12:46:14,832 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2018-10-15 12:46:14,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-10-15 12:46:14,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 45. [2018-10-15 12:46:14,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-10-15 12:46:14,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2018-10-15 12:46:14,872 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 31 [2018-10-15 12:46:14,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 12:46:14,873 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2018-10-15 12:46:14,873 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-15 12:46:14,873 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2018-10-15 12:46:14,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-10-15 12:46:14,876 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 12:46:14,876 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-15 12:46:14,877 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 12:46:14,877 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 12:46:14,877 INFO L82 PathProgramCache]: Analyzing trace with hash -917485932, now seen corresponding path program 1 times [2018-10-15 12:46:14,879 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 12:46:14,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 12:46:15,394 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 12:46:15,395 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 12:46:15,395 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-10-15 12:46:15,397 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-15 12:46:15,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-15 12:46:15,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-10-15 12:46:15,398 INFO L87 Difference]: Start difference. First operand 45 states and 45 transitions. Second operand 14 states. [2018-10-15 12:46:15,946 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 29 [2018-10-15 12:46:16,074 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 33 [2018-10-15 12:46:16,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 12:46:16,549 INFO L93 Difference]: Finished difference Result 68 states and 68 transitions. [2018-10-15 12:46:16,549 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-15 12:46:16,549 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 44 [2018-10-15 12:46:16,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 12:46:16,551 INFO L225 Difference]: With dead ends: 68 [2018-10-15 12:46:16,552 INFO L226 Difference]: Without dead ends: 68 [2018-10-15 12:46:16,553 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=213, Invalid=489, Unknown=0, NotChecked=0, Total=702 [2018-10-15 12:46:16,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-10-15 12:46:16,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 58. [2018-10-15 12:46:16,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-10-15 12:46:16,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2018-10-15 12:46:16,561 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 44 [2018-10-15 12:46:16,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 12:46:16,561 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2018-10-15 12:46:16,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-15 12:46:16,562 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2018-10-15 12:46:16,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-10-15 12:46:16,564 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 12:46:16,564 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2018-10-15 12:46:16,564 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 12:46:16,565 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 12:46:16,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1354533305, now seen corresponding path program 2 times [2018-10-15 12:46:16,566 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 12:46:16,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 12:46:17,091 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 12 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 12:46:17,092 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 12:46:17,092 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2018-10-15 12:46:17,093 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-15 12:46:17,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-15 12:46:17,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2018-10-15 12:46:17,094 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand 13 states. [2018-10-15 12:46:17,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 12:46:17,549 INFO L93 Difference]: Finished difference Result 51 states and 50 transitions. [2018-10-15 12:46:17,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-15 12:46:17,550 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 57 [2018-10-15 12:46:17,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 12:46:17,552 INFO L225 Difference]: With dead ends: 51 [2018-10-15 12:46:17,552 INFO L226 Difference]: Without dead ends: 0 [2018-10-15 12:46:17,553 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=176, Invalid=424, Unknown=0, NotChecked=0, Total=600 [2018-10-15 12:46:17,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-15 12:46:17,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-15 12:46:17,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-15 12:46:17,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-15 12:46:17,554 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 57 [2018-10-15 12:46:17,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 12:46:17,556 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-15 12:46:17,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-15 12:46:17,557 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-15 12:46:17,557 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-15 12:46:17,562 INFO L202 PluginConnector]: Adding new model veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 12:46:17 BoogieIcfgContainer [2018-10-15 12:46:17,563 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-15 12:46:17,564 INFO L168 Benchmark]: Toolchain (without parser) took 5897.23 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.1 GB in the end (delta: 372.8 MB). Peak memory consumption was 372.8 MB. Max. memory is 7.1 GB. [2018-10-15 12:46:17,565 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-15 12:46:17,566 INFO L168 Benchmark]: Boogie Preprocessor took 49.61 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. [2018-10-15 12:46:17,567 INFO L168 Benchmark]: RCFGBuilder took 501.13 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-15 12:46:17,568 INFO L168 Benchmark]: TraceAbstraction took 5341.86 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 351.7 MB). Peak memory consumption was 351.7 MB. Max. memory is 7.1 GB. [2018-10-15 12:46:17,572 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 49.61 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 501.13 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5341.86 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 351.7 MB). Peak memory consumption was 351.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 99]: 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, 41 locations, 1 error locations. SAFE Result, 5.2s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 3.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 85 SDtfs, 669 SDslu, 528 SDs, 0 SdLazy, 321 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 21 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 129 ConstructedInterpolants, 0 QuantifiedInterpolants, 28582 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 12/31 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/veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-15_12-46-17-584.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-15_12-46-17-584.csv Received shutdown request...