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_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-093a8c0 [2018-10-14 16:48:18,467 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 16:48:18,470 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 16:48:18,488 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-14 16:48:18,489 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-14 16:48:18,490 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-14 16:48:18,492 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-14 16:48:18,494 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-14 16:48:18,497 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-14 16:48:18,498 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-14 16:48:18,500 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-14 16:48:18,501 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-14 16:48:18,504 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-14 16:48:18,505 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-14 16:48:18,513 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-14 16:48:18,514 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-14 16:48:18,517 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-14 16:48:18,521 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-14 16:48:18,525 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-14 16:48:18,526 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-14 16:48:18,530 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-14 16:48:18,532 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-14 16:48:18,535 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-14 16:48:18,537 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-14 16:48:18,537 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-14 16:48:18,538 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-14 16:48:18,539 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-14 16:48:18,541 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-14 16:48:18,542 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-14 16:48:18,545 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-14 16:48:18,545 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-14 16:48:18,545 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-14 16:48:18,548 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-14 16:48:18,569 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 16:48:18,570 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 16:48:18,570 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 16:48:18,571 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 16:48:18,571 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 16:48:18,571 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 16:48:18,572 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 16:48:18,572 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 16:48:18,573 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 16:48:18,573 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 16:48:18,573 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 16:48:18,573 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 16:48:18,573 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 16:48:18,575 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 16:48:18,575 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 16:48:18,630 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 16:48:18,646 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 16:48:18,649 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 16:48:18,651 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 16:48:18,652 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 16:48:18,653 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl [2018-10-14 16:48:18,653 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl' [2018-10-14 16:48:18,717 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 16:48:18,719 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-14 16:48:18,720 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 16:48:18,720 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 16:48:18,720 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 16:48:18,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:48:18" (1/1) ... [2018-10-14 16:48:18,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:48:18" (1/1) ... [2018-10-14 16:48:18,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:48:18" (1/1) ... [2018-10-14 16:48:18,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:48:18" (1/1) ... [2018-10-14 16:48:18,767 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:48:18" (1/1) ... [2018-10-14 16:48:18,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:48:18" (1/1) ... [2018-10-14 16:48:18,770 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:48:18" (1/1) ... [2018-10-14 16:48:18,772 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 16:48:18,773 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 16:48:18,773 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 16:48:18,773 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 16:48:18,774 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:48:18" (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 [2018-10-14 16:48:18,846 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 16:48:18,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 16:48:18,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 16:48:19,347 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 16:48:19,348 INFO L202 PluginConnector]: Adding new model openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:48:19 BoogieIcfgContainer [2018-10-14 16:48:19,348 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 16:48:19,349 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 16:48:19,349 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 16:48:19,352 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 16:48:19,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:48:18" (1/2) ... [2018-10-14 16:48:19,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@783e3c2e and model type openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:48:19, skipping insertion in model container [2018-10-14 16:48:19,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:48:19" (2/2) ... [2018-10-14 16:48:19,356 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl [2018-10-14 16:48:19,366 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 16:48:19,376 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 16:48:19,391 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 16:48:19,416 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 16:48:19,416 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 16:48:19,417 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 16:48:19,417 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 16:48:19,417 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 16:48:19,417 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 16:48:19,417 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 16:48:19,417 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 16:48:19,418 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 16:48:19,435 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2018-10-14 16:48:19,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-10-14 16:48:19,445 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:48:19,446 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] [2018-10-14 16:48:19,447 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:48:19,453 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:48:19,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1440982301, now seen corresponding path program 1 times [2018-10-14 16:48:19,499 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:48:19,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:48:20,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:48:20,341 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:48:20,342 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-10-14 16:48:20,347 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-14 16:48:20,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-14 16:48:20,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2018-10-14 16:48:20,366 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 13 states. [2018-10-14 16:48:21,080 WARN L179 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-10-14 16:48:21,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:48:21,679 INFO L93 Difference]: Finished difference Result 71 states and 71 transitions. [2018-10-14 16:48:21,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-14 16:48:21,681 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 42 [2018-10-14 16:48:21,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:48:21,694 INFO L225 Difference]: With dead ends: 71 [2018-10-14 16:48:21,694 INFO L226 Difference]: Without dead ends: 71 [2018-10-14 16:48:21,697 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=190, Invalid=410, Unknown=0, NotChecked=0, Total=600 [2018-10-14 16:48:21,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-10-14 16:48:21,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 58. [2018-10-14 16:48:21,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-10-14 16:48:21,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2018-10-14 16:48:21,739 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 42 [2018-10-14 16:48:21,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:48:21,740 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2018-10-14 16:48:21,740 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-14 16:48:21,740 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2018-10-14 16:48:21,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-10-14 16:48:21,742 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:48:21,743 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:48:21,743 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:48:21,743 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:48:21,744 INFO L82 PathProgramCache]: Analyzing trace with hash -971624712, now seen corresponding path program 1 times [2018-10-14 16:48:21,745 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:48:21,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:48:22,632 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:48:22,633 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:48:22,633 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-10-14 16:48:22,635 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-10-14 16:48:22,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-10-14 16:48:22,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2018-10-14 16:48:22,636 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand 19 states. [2018-10-14 16:48:24,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:48:24,807 INFO L93 Difference]: Finished difference Result 86 states and 86 transitions. [2018-10-14 16:48:24,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-10-14 16:48:24,808 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 57 [2018-10-14 16:48:24,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:48:24,810 INFO L225 Difference]: With dead ends: 86 [2018-10-14 16:48:24,810 INFO L226 Difference]: Without dead ends: 86 [2018-10-14 16:48:24,812 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=327, Invalid=1005, Unknown=0, NotChecked=0, Total=1332 [2018-10-14 16:48:24,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-10-14 16:48:24,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 73. [2018-10-14 16:48:24,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-10-14 16:48:24,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 73 transitions. [2018-10-14 16:48:24,821 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 73 transitions. Word has length 57 [2018-10-14 16:48:24,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:48:24,822 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 73 transitions. [2018-10-14 16:48:24,822 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-10-14 16:48:24,822 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 73 transitions. [2018-10-14 16:48:24,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-10-14 16:48:24,824 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:48:24,825 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2018-10-14 16:48:24,825 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:48:24,825 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:48:24,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1706102339, now seen corresponding path program 2 times [2018-10-14 16:48:24,827 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:48:24,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:48:25,678 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:48:25,679 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:48:25,679 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-10-14 16:48:25,680 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-10-14 16:48:25,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-10-14 16:48:25,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=461, Unknown=0, NotChecked=0, Total=506 [2018-10-14 16:48:25,681 INFO L87 Difference]: Start difference. First operand 73 states and 73 transitions. Second operand 23 states. [2018-10-14 16:48:27,654 WARN L179 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2018-10-14 16:48:27,853 WARN L179 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2018-10-14 16:48:28,084 WARN L179 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2018-10-14 16:48:28,302 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2018-10-14 16:48:28,475 WARN L179 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2018-10-14 16:48:28,654 WARN L179 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2018-10-14 16:48:28,814 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2018-10-14 16:48:28,949 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2018-10-14 16:48:29,130 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2018-10-14 16:48:29,366 WARN L179 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2018-10-14 16:48:29,564 WARN L179 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2018-10-14 16:48:29,824 WARN L179 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2018-10-14 16:48:30,025 WARN L179 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2018-10-14 16:48:30,284 WARN L179 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2018-10-14 16:48:30,498 WARN L179 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2018-10-14 16:48:30,695 WARN L179 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2018-10-14 16:48:30,901 WARN L179 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2018-10-14 16:48:31,190 WARN L179 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2018-10-14 16:48:31,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:48:31,199 INFO L93 Difference]: Finished difference Result 84 states and 84 transitions. [2018-10-14 16:48:31,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-10-14 16:48:31,202 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 72 [2018-10-14 16:48:31,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:48:31,203 INFO L225 Difference]: With dead ends: 84 [2018-10-14 16:48:31,203 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 16:48:31,205 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=584, Invalid=2172, Unknown=0, NotChecked=0, Total=2756 [2018-10-14 16:48:31,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 16:48:31,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 16:48:31,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 16:48:31,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 16:48:31,206 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 72 [2018-10-14 16:48:31,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:48:31,206 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 16:48:31,206 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-10-14 16:48:31,206 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 16:48:31,207 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 16:48:31,212 INFO L202 PluginConnector]: Adding new model openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 04:48:31 BoogieIcfgContainer [2018-10-14 16:48:31,212 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 16:48:31,213 INFO L168 Benchmark]: Toolchain (without parser) took 12495.17 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 147.3 MB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -108.5 MB). Peak memory consumption was 38.9 MB. Max. memory is 7.1 GB. [2018-10-14 16:48:31,214 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 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. [2018-10-14 16:48:31,216 INFO L168 Benchmark]: Boogie Preprocessor took 52.86 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. [2018-10-14 16:48:31,216 INFO L168 Benchmark]: RCFGBuilder took 574.95 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-14 16:48:31,217 INFO L168 Benchmark]: TraceAbstraction took 11863.38 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 147.3 MB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -129.6 MB). Peak memory consumption was 17.7 MB. Max. memory is 7.1 GB. [2018-10-14 16:48:31,221 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 52.86 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 574.95 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11863.38 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 147.3 MB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -129.6 MB). Peak memory consumption was 17.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 116]: 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, 54 locations, 1 error locations. SAFE Result, 11.8s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 9.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 129 SDtfs, 1196 SDslu, 1207 SDs, 0 SdLazy, 983 SolverSat, 73 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 9.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred 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, 26 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 171 NumberOfCodeBlocks, 171 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 168 ConstructedInterpolants, 0 QuantifiedInterpolants, 97667 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/33 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_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-14_16-48-31-233.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-14_16-48-31-233.csv Received shutdown request...