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/test-memleak_nexttime_true-valid-memsafety_true-termination.i_11.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b8f97f7-m [2018-10-10 15:49:11,715 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 15:49:11,718 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 15:49:11,736 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 15:49:11,737 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 15:49:11,738 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 15:49:11,740 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 15:49:11,742 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 15:49:11,743 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 15:49:11,744 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 15:49:11,745 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-10-10 15:49:11,778 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-10 15:49:11,794 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 15:49:11,794 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 15:49:11,795 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 15:49:11,796 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 15:49:11,796 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 15:49:11,796 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 15:49:11,797 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 15:49:11,797 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 15:49:11,797 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 15:49:11,797 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 15:49:11,798 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 15:49:11,798 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 15:49:11,798 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 15:49:11,799 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 15:49:11,799 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 15:49:11,860 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 15:49:11,876 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 15:49:11,881 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 15:49:11,883 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 15:49:11,883 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 15:49:11,884 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/test-memleak_nexttime_true-valid-memsafety_true-termination.i_11.bpl [2018-10-10 15:49:11,884 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/test-memleak_nexttime_true-valid-memsafety_true-termination.i_11.bpl' [2018-10-10 15:49:11,976 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 15:49:11,978 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-10 15:49:11,978 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 15:49:11,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 15:49:11,979 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 15:49:12,006 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "test-memleak_nexttime_true-valid-memsafety_true-termination.i_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:49:11" (1/1) ... [2018-10-10 15:49:12,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "test-memleak_nexttime_true-valid-memsafety_true-termination.i_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:49:11" (1/1) ... [2018-10-10 15:49:12,028 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "test-memleak_nexttime_true-valid-memsafety_true-termination.i_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:49:11" (1/1) ... [2018-10-10 15:49:12,029 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "test-memleak_nexttime_true-valid-memsafety_true-termination.i_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:49:11" (1/1) ... [2018-10-10 15:49:12,046 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "test-memleak_nexttime_true-valid-memsafety_true-termination.i_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:49:11" (1/1) ... [2018-10-10 15:49:12,053 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "test-memleak_nexttime_true-valid-memsafety_true-termination.i_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:49:11" (1/1) ... [2018-10-10 15:49:12,058 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "test-memleak_nexttime_true-valid-memsafety_true-termination.i_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:49:11" (1/1) ... [2018-10-10 15:49:12,065 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 15:49:12,066 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 15:49:12,066 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 15:49:12,066 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 15:49:12,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "test-memleak_nexttime_true-valid-memsafety_true-termination.i_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:49:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-10 15:49:12,133 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 15:49:12,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 15:49:12,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 15:49:12,882 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 15:49:12,883 INFO L202 PluginConnector]: Adding new model test-memleak_nexttime_true-valid-memsafety_true-termination.i_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:49:12 BoogieIcfgContainer [2018-10-10 15:49:12,883 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 15:49:12,884 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 15:49:12,884 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 15:49:12,887 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 15:49:12,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "test-memleak_nexttime_true-valid-memsafety_true-termination.i_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:49:11" (1/2) ... [2018-10-10 15:49:12,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c79a977 and model type test-memleak_nexttime_true-valid-memsafety_true-termination.i_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 03:49:12, skipping insertion in model container [2018-10-10 15:49:12,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "test-memleak_nexttime_true-valid-memsafety_true-termination.i_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:49:12" (2/2) ... [2018-10-10 15:49:12,891 INFO L112 eAbstractionObserver]: Analyzing ICFG test-memleak_nexttime_true-valid-memsafety_true-termination.i_11.bpl [2018-10-10 15:49:12,899 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 15:49:12,906 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 15:49:12,921 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 15:49:12,947 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 15:49:12,947 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 15:49:12,948 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 15:49:12,948 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 15:49:12,948 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 15:49:12,948 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 15:49:12,948 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 15:49:12,948 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 15:49:12,949 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 15:49:12,967 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states. [2018-10-10 15:49:12,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-10-10 15:49:12,980 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:49:12,981 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:49:12,983 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:49:12,988 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:49:12,989 INFO L82 PathProgramCache]: Analyzing trace with hash 619733042, now seen corresponding path program 1 times [2018-10-10 15:49:13,038 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:49:13,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:49:13,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:49:13,441 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:49:13,441 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-10 15:49:13,450 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-10 15:49:13,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-10 15:49:13,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-10 15:49:13,471 INFO L87 Difference]: Start difference. First operand 102 states. Second operand 4 states. [2018-10-10 15:49:13,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:49:13,662 INFO L93 Difference]: Finished difference Result 104 states and 104 transitions. [2018-10-10 15:49:13,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-10 15:49:13,663 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 96 [2018-10-10 15:49:13,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:49:13,677 INFO L225 Difference]: With dead ends: 104 [2018-10-10 15:49:13,678 INFO L226 Difference]: Without dead ends: 104 [2018-10-10 15:49:13,680 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-10 15:49:13,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-10-10 15:49:13,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 101. [2018-10-10 15:49:13,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2018-10-10 15:49:13,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 101 transitions. [2018-10-10 15:49:13,726 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 101 transitions. Word has length 96 [2018-10-10 15:49:13,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:49:13,727 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 101 transitions. [2018-10-10 15:49:13,727 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-10 15:49:13,727 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 101 transitions. [2018-10-10 15:49:13,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-10-10 15:49:13,731 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:49:13,732 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:49:13,732 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:49:13,732 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:49:13,733 INFO L82 PathProgramCache]: Analyzing trace with hash 980246132, now seen corresponding path program 1 times [2018-10-10 15:49:13,734 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:49:13,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:49:13,947 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:49:13,947 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:49:13,948 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-10-10 15:49:13,950 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-10 15:49:13,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-10 15:49:13,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-10 15:49:13,951 INFO L87 Difference]: Start difference. First operand 101 states and 101 transitions. Second operand 5 states. [2018-10-10 15:49:14,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:49:14,220 INFO L93 Difference]: Finished difference Result 108 states and 108 transitions. [2018-10-10 15:49:14,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-10 15:49:14,221 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 100 [2018-10-10 15:49:14,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:49:14,224 INFO L225 Difference]: With dead ends: 108 [2018-10-10 15:49:14,224 INFO L226 Difference]: Without dead ends: 108 [2018-10-10 15:49:14,225 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-10 15:49:14,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2018-10-10 15:49:14,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 105. [2018-10-10 15:49:14,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-10-10 15:49:14,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 105 transitions. [2018-10-10 15:49:14,236 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 105 transitions. Word has length 100 [2018-10-10 15:49:14,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:49:14,237 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 105 transitions. [2018-10-10 15:49:14,237 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-10 15:49:14,238 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 105 transitions. [2018-10-10 15:49:14,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-10-10 15:49:14,242 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:49:14,242 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:49:14,243 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:49:14,243 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:49:14,243 INFO L82 PathProgramCache]: Analyzing trace with hash 819817398, now seen corresponding path program 2 times [2018-10-10 15:49:14,244 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:49:14,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:49:14,430 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:49:14,430 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:49:14,430 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-10-10 15:49:14,431 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-10 15:49:14,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-10 15:49:14,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-10 15:49:14,432 INFO L87 Difference]: Start difference. First operand 105 states and 105 transitions. Second operand 6 states. [2018-10-10 15:49:14,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:49:14,621 INFO L93 Difference]: Finished difference Result 112 states and 112 transitions. [2018-10-10 15:49:14,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-10 15:49:14,622 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 104 [2018-10-10 15:49:14,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:49:14,624 INFO L225 Difference]: With dead ends: 112 [2018-10-10 15:49:14,624 INFO L226 Difference]: Without dead ends: 112 [2018-10-10 15:49:14,625 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-10-10 15:49:14,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-10-10 15:49:14,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 109. [2018-10-10 15:49:14,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2018-10-10 15:49:14,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 109 transitions. [2018-10-10 15:49:14,634 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 109 transitions. Word has length 104 [2018-10-10 15:49:14,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:49:14,635 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 109 transitions. [2018-10-10 15:49:14,635 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-10 15:49:14,635 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 109 transitions. [2018-10-10 15:49:14,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-10-10 15:49:14,637 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:49:14,637 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:49:14,638 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:49:14,639 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:49:14,639 INFO L82 PathProgramCache]: Analyzing trace with hash 706807800, now seen corresponding path program 3 times [2018-10-10 15:49:14,640 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:49:14,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:49:14,832 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:49:14,832 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:49:14,832 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-10-10 15:49:14,833 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-10 15:49:14,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-10 15:49:14,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-10 15:49:14,834 INFO L87 Difference]: Start difference. First operand 109 states and 109 transitions. Second operand 7 states. [2018-10-10 15:49:15,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:49:15,291 INFO L93 Difference]: Finished difference Result 113 states and 113 transitions. [2018-10-10 15:49:15,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-10 15:49:15,292 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 108 [2018-10-10 15:49:15,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:49:15,293 INFO L225 Difference]: With dead ends: 113 [2018-10-10 15:49:15,294 INFO L226 Difference]: Without dead ends: 113 [2018-10-10 15:49:15,294 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-10-10 15:49:15,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2018-10-10 15:49:15,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2018-10-10 15:49:15,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-10-10 15:49:15,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 113 transitions. [2018-10-10 15:49:15,303 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 113 transitions. Word has length 108 [2018-10-10 15:49:15,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:49:15,303 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 113 transitions. [2018-10-10 15:49:15,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-10 15:49:15,304 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 113 transitions. [2018-10-10 15:49:15,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-10-10 15:49:15,306 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:49:15,306 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:49:15,306 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:49:15,307 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:49:15,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1675146042, now seen corresponding path program 4 times [2018-10-10 15:49:15,308 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:49:15,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:49:15,632 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-10-10 15:49:15,632 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:49:15,632 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-10 15:49:15,633 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-10 15:49:15,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-10 15:49:15,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-10-10 15:49:15,634 INFO L87 Difference]: Start difference. First operand 113 states and 113 transitions. Second operand 7 states. [2018-10-10 15:49:16,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:49:16,161 INFO L93 Difference]: Finished difference Result 111 states and 111 transitions. [2018-10-10 15:49:16,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-10 15:49:16,162 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 112 [2018-10-10 15:49:16,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:49:16,163 INFO L225 Difference]: With dead ends: 111 [2018-10-10 15:49:16,163 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 15:49:16,163 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-10-10 15:49:16,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 15:49:16,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 15:49:16,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 15:49:16,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 15:49:16,164 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 112 [2018-10-10 15:49:16,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:49:16,165 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 15:49:16,165 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-10 15:49:16,165 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 15:49:16,166 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 15:49:16,171 INFO L202 PluginConnector]: Adding new model test-memleak_nexttime_true-valid-memsafety_true-termination.i_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 03:49:16 BoogieIcfgContainer [2018-10-10 15:49:16,171 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 15:49:16,172 INFO L168 Benchmark]: Toolchain (without parser) took 4195.46 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: 232.6 MB). Peak memory consumption was 232.6 MB. Max. memory is 7.1 GB. [2018-10-10 15:49:16,174 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 15:49:16,174 INFO L168 Benchmark]: Boogie Preprocessor took 87.12 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 15:49:16,175 INFO L168 Benchmark]: RCFGBuilder took 817.29 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-10 15:49:16,176 INFO L168 Benchmark]: TraceAbstraction took 3287.14 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.9 MB). Peak memory consumption was 200.9 MB. Max. memory is 7.1 GB. [2018-10-10 15:49:16,180 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 87.12 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 817.29 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3287.14 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.9 MB). Peak memory consumption was 200.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 176]: 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, 102 locations, 1 error locations. SAFE Result, 3.2s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 1.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 439 SDtfs, 395 SDslu, 1075 SDs, 0 SdLazy, 268 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred in iteration=4, 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, 5 MinimizatonAttempts, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 520 NumberOfCodeBlocks, 520 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 515 ConstructedInterpolants, 0 QuantifiedInterpolants, 83269 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 28/50 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/test-memleak_nexttime_true-valid-memsafety_true-termination.i_11.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-10_15-49-16-191.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/test-memleak_nexttime_true-valid-memsafety_true-termination.i_11.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-10_15-49-16-191.csv Received shutdown request...