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/array03-alloca_true-valid-memsafety_true-termination.i_6.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-502d2f4 [2018-10-12 20:55:04,292 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-12 20:55:04,302 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-12 20:55:04,320 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-12 20:55:04,321 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-12 20:55:04,322 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-12 20:55:04,324 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-12 20:55:04,326 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-12 20:55:04,328 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-12 20:55:04,329 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-12 20:55:04,332 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-12 20:55:04,332 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-12 20:55:04,333 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-12 20:55:04,336 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-12 20:55:04,344 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-12 20:55:04,347 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-12 20:55:04,348 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-12 20:55:04,350 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-12 20:55:04,354 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-12 20:55:04,358 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-12 20:55:04,359 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-12 20:55:04,360 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-12 20:55:04,362 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-12 20:55:04,362 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-12 20:55:04,362 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-12 20:55:04,363 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-12 20:55:04,364 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-12 20:55:04,365 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-12 20:55:04,366 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-12 20:55:04,367 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-12 20:55:04,367 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-12 20:55:04,368 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-12 20:55:04,370 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-12 20:55:04,381 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-12 20:55:04,382 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-12 20:55:04,383 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-12 20:55:04,384 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-12 20:55:04,384 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-12 20:55:04,384 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-12 20:55:04,385 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-12 20:55:04,385 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-12 20:55:04,386 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-12 20:55:04,386 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-12 20:55:04,386 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-12 20:55:04,386 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-12 20:55:04,387 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-12 20:55:04,387 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-12 20:55:04,389 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-12 20:55:04,451 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-12 20:55:04,466 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-12 20:55:04,471 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-12 20:55:04,472 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-12 20:55:04,473 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-12 20:55:04,474 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/array03-alloca_true-valid-memsafety_true-termination.i_6.bpl [2018-10-12 20:55:04,474 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/array03-alloca_true-valid-memsafety_true-termination.i_6.bpl' [2018-10-12 20:55:04,564 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-12 20:55:04,566 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-12 20:55:04,566 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-12 20:55:04,566 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-12 20:55:04,567 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-12 20:55:04,595 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "array03-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:55:04" (1/1) ... [2018-10-12 20:55:04,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "array03-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:55:04" (1/1) ... [2018-10-12 20:55:04,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "array03-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:55:04" (1/1) ... [2018-10-12 20:55:04,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "array03-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:55:04" (1/1) ... [2018-10-12 20:55:04,623 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "array03-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:55:04" (1/1) ... [2018-10-12 20:55:04,630 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "array03-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:55:04" (1/1) ... [2018-10-12 20:55:04,631 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "array03-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:55:04" (1/1) ... [2018-10-12 20:55:04,638 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-12 20:55:04,639 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-12 20:55:04,640 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-12 20:55:04,640 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-12 20:55:04,642 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "array03-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:55:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-12 20:55:04,721 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-12 20:55:04,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-12 20:55:04,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-12 20:55:05,326 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-12 20:55:05,328 INFO L202 PluginConnector]: Adding new model array03-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:55:05 BoogieIcfgContainer [2018-10-12 20:55:05,328 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-12 20:55:05,329 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-12 20:55:05,329 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-12 20:55:05,332 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-12 20:55:05,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array03-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:55:04" (1/2) ... [2018-10-12 20:55:05,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35bc7ac4 and model type array03-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 08:55:05, skipping insertion in model container [2018-10-12 20:55:05,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array03-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:55:05" (2/2) ... [2018-10-12 20:55:05,336 INFO L112 eAbstractionObserver]: Analyzing ICFG array03-alloca_true-valid-memsafety_true-termination.i_6.bpl [2018-10-12 20:55:05,346 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-12 20:55:05,355 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-12 20:55:05,372 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-12 20:55:05,401 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-12 20:55:05,402 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-12 20:55:05,402 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-12 20:55:05,403 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-12 20:55:05,403 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-12 20:55:05,403 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-12 20:55:05,403 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-12 20:55:05,403 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-12 20:55:05,403 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-12 20:55:05,422 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2018-10-12 20:55:05,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-12 20:55:05,432 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:55:05,433 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] [2018-10-12 20:55:05,434 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:55:05,440 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:55:05,440 INFO L82 PathProgramCache]: Analyzing trace with hash 827150095, now seen corresponding path program 1 times [2018-10-12 20:55:05,502 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:55:05,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:55:06,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 20:55:06,318 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 20:55:06,319 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-10-12 20:55:06,324 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-12 20:55:06,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-12 20:55:06,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2018-10-12 20:55:06,343 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 12 states. [2018-10-12 20:55:07,127 WARN L178 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2018-10-12 20:55:07,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:55:07,615 INFO L93 Difference]: Finished difference Result 96 states and 96 transitions. [2018-10-12 20:55:07,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-12 20:55:07,621 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 33 [2018-10-12 20:55:07,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:55:07,638 INFO L225 Difference]: With dead ends: 96 [2018-10-12 20:55:07,639 INFO L226 Difference]: Without dead ends: 96 [2018-10-12 20:55:07,641 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=150, Invalid=312, Unknown=0, NotChecked=0, Total=462 [2018-10-12 20:55:07,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-10-12 20:55:07,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 68. [2018-10-12 20:55:07,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-10-12 20:55:07,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 68 transitions. [2018-10-12 20:55:07,694 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 68 transitions. Word has length 33 [2018-10-12 20:55:07,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:55:07,695 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 68 transitions. [2018-10-12 20:55:07,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-12 20:55:07,695 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 68 transitions. [2018-10-12 20:55:07,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-10-12 20:55:07,697 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:55:07,698 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] [2018-10-12 20:55:07,698 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:55:07,698 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:55:07,699 INFO L82 PathProgramCache]: Analyzing trace with hash -1308585920, now seen corresponding path program 1 times [2018-10-12 20:55:07,700 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:55:07,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:55:08,285 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 20:55:08,285 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 20:55:08,286 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-10-12 20:55:08,288 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-12 20:55:08,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-12 20:55:08,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2018-10-12 20:55:08,289 INFO L87 Difference]: Start difference. First operand 68 states and 68 transitions. Second operand 16 states. [2018-10-12 20:55:09,263 WARN L178 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2018-10-12 20:55:09,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:55:09,982 INFO L93 Difference]: Finished difference Result 134 states and 134 transitions. [2018-10-12 20:55:09,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-10-12 20:55:09,985 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 67 [2018-10-12 20:55:09,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:55:09,989 INFO L225 Difference]: With dead ends: 134 [2018-10-12 20:55:09,989 INFO L226 Difference]: Without dead ends: 134 [2018-10-12 20:55:09,991 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=246, Invalid=624, Unknown=0, NotChecked=0, Total=870 [2018-10-12 20:55:09,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2018-10-12 20:55:10,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 102. [2018-10-12 20:55:10,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2018-10-12 20:55:10,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 102 transitions. [2018-10-12 20:55:10,003 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 102 transitions. Word has length 67 [2018-10-12 20:55:10,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:55:10,003 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 102 transitions. [2018-10-12 20:55:10,003 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-10-12 20:55:10,004 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 102 transitions. [2018-10-12 20:55:10,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-10-12 20:55:10,011 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:55:10,011 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, 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] [2018-10-12 20:55:10,011 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:55:10,012 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:55:10,012 INFO L82 PathProgramCache]: Analyzing trace with hash -31439567, now seen corresponding path program 2 times [2018-10-12 20:55:10,013 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:55:10,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:55:10,574 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 2 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 20:55:10,574 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 20:55:10,575 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-10-12 20:55:10,575 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-10-12 20:55:10,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-10-12 20:55:10,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2018-10-12 20:55:10,576 INFO L87 Difference]: Start difference. First operand 102 states and 102 transitions. Second operand 18 states. [2018-10-12 20:55:12,197 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2018-10-12 20:55:12,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:55:12,639 INFO L93 Difference]: Finished difference Result 132 states and 132 transitions. [2018-10-12 20:55:12,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-10-12 20:55:12,639 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 101 [2018-10-12 20:55:12,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:55:12,641 INFO L225 Difference]: With dead ends: 132 [2018-10-12 20:55:12,641 INFO L226 Difference]: Without dead ends: 0 [2018-10-12 20:55:12,643 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=375, Invalid=957, Unknown=0, NotChecked=0, Total=1332 [2018-10-12 20:55:12,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-12 20:55:12,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-12 20:55:12,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-12 20:55:12,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-12 20:55:12,644 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 101 [2018-10-12 20:55:12,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:55:12,644 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-12 20:55:12,644 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-10-12 20:55:12,644 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-12 20:55:12,645 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-12 20:55:12,649 INFO L202 PluginConnector]: Adding new model array03-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 08:55:12 BoogieIcfgContainer [2018-10-12 20:55:12,649 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-12 20:55:12,650 INFO L168 Benchmark]: Toolchain (without parser) took 8086.02 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 20.4 MB). Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 29.5 MB). Peak memory consumption was 49.9 MB. Max. memory is 7.1 GB. [2018-10-12 20:55:12,652 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-12 20:55:12,652 INFO L168 Benchmark]: Boogie Preprocessor took 72.53 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-12 20:55:12,653 INFO L168 Benchmark]: RCFGBuilder took 688.71 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-12 20:55:12,654 INFO L168 Benchmark]: TraceAbstraction took 7320.55 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 20.4 MB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: -2.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 7.1 GB. [2018-10-12 20:55:12,658 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 72.53 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 688.71 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7320.55 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 20.4 MB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: -2.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 125]: 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, 65 locations, 1 error locations. SAFE Result, 7.2s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 5.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 173 SDtfs, 2378 SDslu, 734 SDs, 0 SdLazy, 707 SolverSat, 99 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102occurred 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, 60 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 201 NumberOfCodeBlocks, 201 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 198 ConstructedInterpolants, 0 QuantifiedInterpolants, 172146 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 2/49 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/array03-alloca_true-valid-memsafety_true-termination.i_6.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-12_20-55-12-672.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/array03-alloca_true-valid-memsafety_true-termination.i_6.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-12_20-55-12-672.csv Received shutdown request...