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/array01-alloca_true-valid-memsafety_true-termination.i_8.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-502d2f4 [2018-10-12 20:54:45,830 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-12 20:54:45,832 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-12 20:54:45,847 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-12 20:54:45,847 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-12 20:54:45,848 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-12 20:54:45,850 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-12 20:54:45,851 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-12 20:54:45,853 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-12 20:54:45,854 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-12 20:54:45,855 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-12 20:54:45,855 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-12 20:54:45,856 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-12 20:54:45,857 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-12 20:54:45,858 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-12 20:54:45,859 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-12 20:54:45,860 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-12 20:54:45,862 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-12 20:54:45,864 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-12 20:54:45,866 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-12 20:54:45,868 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-12 20:54:45,869 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-12 20:54:45,874 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-12 20:54:45,875 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-12 20:54:45,875 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-12 20:54:45,878 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-12 20:54:45,879 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-12 20:54:45,880 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-12 20:54:45,880 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-12 20:54:45,881 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-12 20:54:45,882 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-12 20:54:45,887 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-12 20:54:45,893 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 20:54:45,902 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-12 20:54:45,902 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-12 20:54:45,903 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-12 20:54:45,903 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-12 20:54:45,903 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-12 20:54:45,904 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-12 20:54:45,904 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-12 20:54:45,904 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-12 20:54:45,905 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-12 20:54:45,905 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-12 20:54:45,905 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-12 20:54:45,905 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-12 20:54:45,906 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-12 20:54:45,906 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-12 20:54:45,906 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-12 20:54:45,953 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-12 20:54:45,968 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-12 20:54:45,974 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-12 20:54:45,976 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-12 20:54:45,977 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-12 20:54:45,977 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/array01-alloca_true-valid-memsafety_true-termination.i_8.bpl [2018-10-12 20:54:45,978 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/array01-alloca_true-valid-memsafety_true-termination.i_8.bpl' [2018-10-12 20:54:46,039 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-12 20:54:46,041 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-12 20:54:46,041 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-12 20:54:46,041 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-12 20:54:46,041 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-12 20:54:46,065 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "array01-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:54:46" (1/1) ... [2018-10-12 20:54:46,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "array01-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:54:46" (1/1) ... [2018-10-12 20:54:46,081 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "array01-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:54:46" (1/1) ... [2018-10-12 20:54:46,082 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "array01-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:54:46" (1/1) ... [2018-10-12 20:54:46,086 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "array01-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:54:46" (1/1) ... [2018-10-12 20:54:46,088 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "array01-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:54:46" (1/1) ... [2018-10-12 20:54:46,089 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "array01-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:54:46" (1/1) ... [2018-10-12 20:54:46,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-12 20:54:46,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-12 20:54:46,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-12 20:54:46,093 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-12 20:54:46,094 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "array01-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:54:46" (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 20:54:46,159 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-12 20:54:46,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-12 20:54:46,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-12 20:54:46,709 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-12 20:54:46,710 INFO L202 PluginConnector]: Adding new model array01-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:54:46 BoogieIcfgContainer [2018-10-12 20:54:46,710 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-12 20:54:46,711 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-12 20:54:46,712 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-12 20:54:46,715 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-12 20:54:46,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array01-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:54:46" (1/2) ... [2018-10-12 20:54:46,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f0babcc and model type array01-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 08:54:46, skipping insertion in model container [2018-10-12 20:54:46,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array01-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:54:46" (2/2) ... [2018-10-12 20:54:46,718 INFO L112 eAbstractionObserver]: Analyzing ICFG array01-alloca_true-valid-memsafety_true-termination.i_8.bpl [2018-10-12 20:54:46,728 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-12 20:54:46,736 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-12 20:54:46,752 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-12 20:54:46,781 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-12 20:54:46,781 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-12 20:54:46,782 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-12 20:54:46,782 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-12 20:54:46,782 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-12 20:54:46,782 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-12 20:54:46,782 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-12 20:54:46,783 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-12 20:54:46,783 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-12 20:54:46,800 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states. [2018-10-12 20:54:46,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-10-12 20:54:46,810 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:54:46,811 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-12 20:54:46,812 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:54:46,818 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:54:46,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1456362875, now seen corresponding path program 1 times [2018-10-12 20:54:46,881 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:54:46,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:54:47,501 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-10-12 20:54:47,706 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 20:54:47,709 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 20:54:47,710 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-10-12 20:54:47,715 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-12 20:54:47,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-12 20:54:47,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2018-10-12 20:54:47,734 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 12 states. [2018-10-12 20:54:48,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:54:48,636 INFO L93 Difference]: Finished difference Result 85 states and 85 transitions. [2018-10-12 20:54:48,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-12 20:54:48,638 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 53 [2018-10-12 20:54:48,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:54:48,651 INFO L225 Difference]: With dead ends: 85 [2018-10-12 20:54:48,652 INFO L226 Difference]: Without dead ends: 71 [2018-10-12 20:54:48,655 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2018-10-12 20:54:48,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-10-12 20:54:48,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 68. [2018-10-12 20:54:48,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-10-12 20:54:48,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 68 transitions. [2018-10-12 20:54:48,696 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 68 transitions. Word has length 53 [2018-10-12 20:54:48,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:54:48,696 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 68 transitions. [2018-10-12 20:54:48,697 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-12 20:54:48,697 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 68 transitions. [2018-10-12 20:54:48,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-10-12 20:54:48,699 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:54:48,699 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-12 20:54:48,701 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:54:48,701 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:54:48,701 INFO L82 PathProgramCache]: Analyzing trace with hash -532049327, now seen corresponding path program 1 times [2018-10-12 20:54:48,703 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:54:48,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:54:49,085 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 20:54:49,086 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 20:54:49,086 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-10-12 20:54:49,088 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-12 20:54:49,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-12 20:54:49,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2018-10-12 20:54:49,089 INFO L87 Difference]: Start difference. First operand 68 states and 68 transitions. Second operand 14 states. [2018-10-12 20:54:49,609 WARN L178 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-10-12 20:54:50,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:54:50,087 INFO L93 Difference]: Finished difference Result 99 states and 99 transitions. [2018-10-12 20:54:50,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-12 20:54:50,088 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 67 [2018-10-12 20:54:50,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:54:50,092 INFO L225 Difference]: With dead ends: 99 [2018-10-12 20:54:50,092 INFO L226 Difference]: Without dead ends: 85 [2018-10-12 20:54:50,094 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=165, Invalid=435, Unknown=0, NotChecked=0, Total=600 [2018-10-12 20:54:50,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-10-12 20:54:50,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 82. [2018-10-12 20:54:50,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-10-12 20:54:50,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 82 transitions. [2018-10-12 20:54:50,103 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 82 transitions. Word has length 67 [2018-10-12 20:54:50,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:54:50,104 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 82 transitions. [2018-10-12 20:54:50,104 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-12 20:54:50,104 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 82 transitions. [2018-10-12 20:54:50,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-10-12 20:54:50,106 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:54:50,106 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-12 20:54:50,106 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:54:50,107 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:54:50,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1087807655, now seen corresponding path program 2 times [2018-10-12 20:54:50,108 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:54:50,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:54:50,641 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 5 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 20:54:50,641 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 20:54:50,641 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-10-12 20:54:50,642 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-12 20:54:50,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-12 20:54:50,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2018-10-12 20:54:50,643 INFO L87 Difference]: Start difference. First operand 82 states and 82 transitions. Second operand 16 states. [2018-10-12 20:54:51,637 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2018-10-12 20:54:51,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:54:51,772 INFO L93 Difference]: Finished difference Result 83 states and 83 transitions. [2018-10-12 20:54:51,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-12 20:54:51,780 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 81 [2018-10-12 20:54:51,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:54:51,781 INFO L225 Difference]: With dead ends: 83 [2018-10-12 20:54:51,781 INFO L226 Difference]: Without dead ends: 0 [2018-10-12 20:54:51,782 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=272, Invalid=720, Unknown=0, NotChecked=0, Total=992 [2018-10-12 20:54:51,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-12 20:54:51,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-12 20:54:51,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-12 20:54:51,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-12 20:54:51,784 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 81 [2018-10-12 20:54:51,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:54:51,784 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-12 20:54:51,784 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-10-12 20:54:51,784 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-12 20:54:51,785 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-12 20:54:51,790 INFO L202 PluginConnector]: Adding new model array01-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 08:54:51 BoogieIcfgContainer [2018-10-12 20:54:51,790 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-12 20:54:51,791 INFO L168 Benchmark]: Toolchain (without parser) took 5751.10 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: 341.0 MB). Peak memory consumption was 341.0 MB. Max. memory is 7.1 GB. [2018-10-12 20:54:51,792 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. [2018-10-12 20:54:51,793 INFO L168 Benchmark]: Boogie Preprocessor took 50.49 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 20:54:51,794 INFO L168 Benchmark]: RCFGBuilder took 618.30 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. [2018-10-12 20:54:51,794 INFO L168 Benchmark]: TraceAbstraction took 5078.97 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: 319.9 MB). Peak memory consumption was 319.9 MB. Max. memory is 7.1 GB. [2018-10-12 20:54:51,798 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 50.49 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 618.30 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 5078.97 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: 319.9 MB). Peak memory consumption was 319.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 120]: 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, 60 locations, 1 error locations. SAFE Result, 5.0s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 3.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 134 SDtfs, 1122 SDslu, 595 SDs, 0 SdLazy, 408 SolverSat, 48 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred 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, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 201 NumberOfCodeBlocks, 201 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 198 ConstructedInterpolants, 0 QuantifiedInterpolants, 103408 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 5/44 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/array01-alloca_true-valid-memsafety_true-termination.i_8.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-12_20-54-51-809.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/array01-alloca_true-valid-memsafety_true-termination.i_8.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-12_20-54-51-809.csv Received shutdown request...