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_16.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-093a8c0 [2018-10-14 16:56:40,468 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 16:56:40,470 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 16:56:40,488 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-14 16:56:40,489 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-14 16:56:40,490 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-14 16:56:40,492 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-14 16:56:40,494 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-14 16:56:40,497 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-14 16:56:40,498 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-14 16:56:40,499 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-10-14 16:56:40,531 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-14 16:56:40,545 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 16:56:40,545 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 16:56:40,546 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 16:56:40,546 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 16:56:40,546 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 16:56:40,546 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 16:56:40,550 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 16:56:40,550 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 16:56:40,550 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 16:56:40,550 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 16:56:40,550 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 16:56:40,551 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 16:56:40,551 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 16:56:40,552 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 16:56:40,552 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 16:56:40,621 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 16:56:40,642 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 16:56:40,650 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 16:56:40,652 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 16:56:40,653 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 16:56:40,653 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/test-memleak_nexttime_true-valid-memsafety_true-termination.i_16.bpl [2018-10-14 16:56:40,654 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/test-memleak_nexttime_true-valid-memsafety_true-termination.i_16.bpl' [2018-10-14 16:56:40,741 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 16:56:40,743 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-14 16:56:40,744 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 16:56:40,744 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 16:56:40,744 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 16:56:40,771 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "test-memleak_nexttime_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:56:40" (1/1) ... [2018-10-14 16:56:40,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "test-memleak_nexttime_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:56:40" (1/1) ... [2018-10-14 16:56:40,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "test-memleak_nexttime_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:56:40" (1/1) ... [2018-10-14 16:56:40,805 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "test-memleak_nexttime_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:56:40" (1/1) ... [2018-10-14 16:56:40,825 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "test-memleak_nexttime_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:56:40" (1/1) ... [2018-10-14 16:56:40,827 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "test-memleak_nexttime_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:56:40" (1/1) ... [2018-10-14 16:56:40,832 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "test-memleak_nexttime_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:56:40" (1/1) ... [2018-10-14 16:56:40,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 16:56:40,847 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 16:56:40,848 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 16:56:40,848 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 16:56:40,849 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "test-memleak_nexttime_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:56:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-14 16:56:40,928 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 16:56:40,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 16:56:40,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 16:56:41,828 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 16:56:41,829 INFO L202 PluginConnector]: Adding new model test-memleak_nexttime_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:56:41 BoogieIcfgContainer [2018-10-14 16:56:41,829 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 16:56:41,831 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 16:56:41,831 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 16:56:41,834 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 16:56:41,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "test-memleak_nexttime_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:56:40" (1/2) ... [2018-10-14 16:56:41,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@569cf28c and model type test-memleak_nexttime_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:56:41, skipping insertion in model container [2018-10-14 16:56:41,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "test-memleak_nexttime_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:56:41" (2/2) ... [2018-10-14 16:56:41,838 INFO L112 eAbstractionObserver]: Analyzing ICFG test-memleak_nexttime_true-valid-memsafety_true-termination.i_16.bpl [2018-10-14 16:56:41,848 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 16:56:41,856 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 16:56:41,874 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 16:56:41,909 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 16:56:41,910 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 16:56:41,910 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 16:56:41,910 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 16:56:41,911 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 16:56:41,911 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 16:56:41,911 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 16:56:41,911 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 16:56:41,911 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 16:56:41,942 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states. [2018-10-14 16:56:41,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-10-14 16:56:41,967 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:56:41,968 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:56:41,970 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:56:41,976 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:56:41,976 INFO L82 PathProgramCache]: Analyzing trace with hash -1931023582, now seen corresponding path program 1 times [2018-10-14 16:56:42,029 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:56:42,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:56:42,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:56:42,395 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:56:42,395 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-14 16:56:42,401 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-14 16:56:42,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-14 16:56:42,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-14 16:56:42,422 INFO L87 Difference]: Start difference. First operand 126 states. Second operand 4 states. [2018-10-14 16:56:42,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:56:42,633 INFO L93 Difference]: Finished difference Result 132 states and 133 transitions. [2018-10-14 16:56:42,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-14 16:56:42,636 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 117 [2018-10-14 16:56:42,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:56:42,651 INFO L225 Difference]: With dead ends: 132 [2018-10-14 16:56:42,651 INFO L226 Difference]: Without dead ends: 132 [2018-10-14 16:56:42,653 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 [2018-10-14 16:56:42,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2018-10-14 16:56:42,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 126. [2018-10-14 16:56:42,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-10-14 16:56:42,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 127 transitions. [2018-10-14 16:56:42,703 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 127 transitions. Word has length 117 [2018-10-14 16:56:42,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:56:42,704 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 127 transitions. [2018-10-14 16:56:42,704 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-14 16:56:42,704 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 127 transitions. [2018-10-14 16:56:42,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-10-14 16:56:42,709 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:56:42,710 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:56:42,711 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:56:42,711 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:56:42,711 INFO L82 PathProgramCache]: Analyzing trace with hash -1602186462, now seen corresponding path program 1 times [2018-10-14 16:56:42,712 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:56:42,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:56:42,919 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-10-14 16:56:42,920 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:56:42,920 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-10-14 16:56:42,923 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-14 16:56:42,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-14 16:56:42,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-14 16:56:42,924 INFO L87 Difference]: Start difference. First operand 126 states and 127 transitions. Second operand 5 states. [2018-10-14 16:56:43,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:56:43,210 INFO L93 Difference]: Finished difference Result 140 states and 141 transitions. [2018-10-14 16:56:43,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-14 16:56:43,212 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 125 [2018-10-14 16:56:43,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:56:43,216 INFO L225 Difference]: With dead ends: 140 [2018-10-14 16:56:43,217 INFO L226 Difference]: Without dead ends: 140 [2018-10-14 16:56:43,218 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-14 16:56:43,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-10-14 16:56:43,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 134. [2018-10-14 16:56:43,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-10-14 16:56:43,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 135 transitions. [2018-10-14 16:56:43,230 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 135 transitions. Word has length 125 [2018-10-14 16:56:43,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:56:43,231 INFO L481 AbstractCegarLoop]: Abstraction has 134 states and 135 transitions. [2018-10-14 16:56:43,231 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-14 16:56:43,232 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 135 transitions. [2018-10-14 16:56:43,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-10-14 16:56:43,235 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:56:43,235 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:56:43,236 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:56:43,236 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:56:43,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1733123362, now seen corresponding path program 2 times [2018-10-14 16:56:43,238 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:56:43,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:56:43,478 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-14 16:56:43,479 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:56:43,479 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-10-14 16:56:43,479 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-14 16:56:43,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-14 16:56:43,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-14 16:56:43,480 INFO L87 Difference]: Start difference. First operand 134 states and 135 transitions. Second operand 6 states. [2018-10-14 16:56:44,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:56:44,257 INFO L93 Difference]: Finished difference Result 148 states and 149 transitions. [2018-10-14 16:56:44,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-14 16:56:44,258 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 133 [2018-10-14 16:56:44,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:56:44,260 INFO L225 Difference]: With dead ends: 148 [2018-10-14 16:56:44,260 INFO L226 Difference]: Without dead ends: 148 [2018-10-14 16:56:44,261 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-10-14 16:56:44,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-10-14 16:56:44,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 142. [2018-10-14 16:56:44,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2018-10-14 16:56:44,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 143 transitions. [2018-10-14 16:56:44,273 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 143 transitions. Word has length 133 [2018-10-14 16:56:44,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:56:44,274 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 143 transitions. [2018-10-14 16:56:44,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-14 16:56:44,274 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 143 transitions. [2018-10-14 16:56:44,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-10-14 16:56:44,277 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:56:44,278 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:56:44,278 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:56:44,278 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:56:44,279 INFO L82 PathProgramCache]: Analyzing trace with hash -827700958, now seen corresponding path program 3 times [2018-10-14 16:56:44,280 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:56:44,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:56:44,676 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-10-14 16:56:44,677 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:56:44,677 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-10-14 16:56:44,678 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-14 16:56:44,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-14 16:56:44,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-14 16:56:44,678 INFO L87 Difference]: Start difference. First operand 142 states and 143 transitions. Second operand 7 states. [2018-10-14 16:56:45,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:56:45,481 INFO L93 Difference]: Finished difference Result 150 states and 151 transitions. [2018-10-14 16:56:45,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-14 16:56:45,482 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 141 [2018-10-14 16:56:45,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:56:45,487 INFO L225 Difference]: With dead ends: 150 [2018-10-14 16:56:45,488 INFO L226 Difference]: Without dead ends: 150 [2018-10-14 16:56:45,488 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 [2018-10-14 16:56:45,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2018-10-14 16:56:45,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2018-10-14 16:56:45,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-10-14 16:56:45,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 151 transitions. [2018-10-14 16:56:45,512 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 151 transitions. Word has length 141 [2018-10-14 16:56:45,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:56:45,513 INFO L481 AbstractCegarLoop]: Abstraction has 150 states and 151 transitions. [2018-10-14 16:56:45,513 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-14 16:56:45,513 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 151 transitions. [2018-10-14 16:56:45,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-10-14 16:56:45,518 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:56:45,518 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:56:45,519 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:56:45,519 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:56:45,519 INFO L82 PathProgramCache]: Analyzing trace with hash 796153634, now seen corresponding path program 4 times [2018-10-14 16:56:45,520 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:56:45,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:56:48,186 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 23 [2018-10-14 16:56:48,948 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:56:48,949 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:56:48,949 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2018-10-14 16:56:48,950 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-10-14 16:56:48,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-10-14 16:56:48,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1220, Unknown=0, NotChecked=0, Total=1406 [2018-10-14 16:56:48,951 INFO L87 Difference]: Start difference. First operand 150 states and 151 transitions. Second operand 38 states. [2018-10-14 16:56:50,690 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 48 [2018-10-14 16:56:50,931 WARN L179 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 57 [2018-10-14 16:56:51,128 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 53 [2018-10-14 16:56:51,657 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 42 [2018-10-14 16:56:53,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:56:53,482 INFO L93 Difference]: Finished difference Result 148 states and 149 transitions. [2018-10-14 16:56:53,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-10-14 16:56:53,483 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 149 [2018-10-14 16:56:53,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:56:53,485 INFO L225 Difference]: With dead ends: 148 [2018-10-14 16:56:53,485 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 16:56:53,487 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 3 SyntacticMatches, 11 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1082 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=698, Invalid=3208, Unknown=0, NotChecked=0, Total=3906 [2018-10-14 16:56:53,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 16:56:53,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 16:56:53,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 16:56:53,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 16:56:53,488 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 149 [2018-10-14 16:56:53,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:56:53,489 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 16:56:53,489 INFO L482 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-10-14 16:56:53,489 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 16:56:53,489 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 16:56:53,495 INFO L202 PluginConnector]: Adding new model test-memleak_nexttime_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 04:56:53 BoogieIcfgContainer [2018-10-14 16:56:53,495 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 16:56:53,496 INFO L168 Benchmark]: Toolchain (without parser) took 12753.82 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 111.7 MB). Free memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: -125.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-14 16:56:53,497 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. [2018-10-14 16:56:53,497 INFO L168 Benchmark]: Boogie Preprocessor took 103.36 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. [2018-10-14 16:56:53,498 INFO L168 Benchmark]: RCFGBuilder took 982.10 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-10-14 16:56:53,499 INFO L168 Benchmark]: TraceAbstraction took 11664.01 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 111.7 MB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -167.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-14 16:56:53,503 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 103.36 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 982.10 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11664.01 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 111.7 MB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -167.8 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 212]: 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, 126 locations, 1 error locations. SAFE Result, 11.6s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 6.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 498 SDtfs, 1126 SDslu, 2036 SDs, 0 SdLazy, 1660 SolverSat, 243 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 11 SyntacticMatches, 11 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1092 ImplicationChecksByTransitivity, 6.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=150occurred 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, 18 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 665 NumberOfCodeBlocks, 665 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 660 ConstructedInterpolants, 0 QuantifiedInterpolants, 428644 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 22/100 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_16.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-14_16-56-53-514.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/test-memleak_nexttime_true-valid-memsafety_true-termination.i_16.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-14_16-56-53-514.csv Received shutdown request...