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-b8f97f7-m [2018-10-10 15:49:18,645 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 15:49:18,647 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 15:49:18,660 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 15:49:18,660 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 15:49:18,662 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 15:49:18,663 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 15:49:18,665 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 15:49:18,666 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 15:49:18,667 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 15:49:18,668 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 15:49:18,668 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 15:49:18,669 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 15:49:18,670 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 15:49:18,671 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 15:49:18,672 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 15:49:18,673 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 15:49:18,675 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 15:49:18,677 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 15:49:18,678 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 15:49:18,679 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 15:49:18,681 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 15:49:18,683 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-10 15:49:18,697 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 15:49:18,706 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 15:49:18,706 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 15:49:18,707 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 15:49:18,707 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 15:49:18,707 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 15:49:18,708 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 15:49:18,708 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 15:49:18,709 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 15:49:18,709 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 15:49:18,709 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 15:49:18,709 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 15:49:18,709 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 15:49:18,709 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 15:49:18,710 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 15:49:18,710 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 15:49:18,777 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 15:49:18,793 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 15:49:18,796 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 15:49:18,797 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 15:49:18,798 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 15:49:18,798 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/test-memleak_nexttime_true-valid-memsafety_true-termination.i_16.bpl [2018-10-10 15:49:18,798 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/test-memleak_nexttime_true-valid-memsafety_true-termination.i_16.bpl' [2018-10-10 15:49:18,891 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 15:49:18,893 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-10 15:49:18,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 15:49:18,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 15:49:18,894 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 15:49:18,922 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 10.10 03:49:18" (1/1) ... [2018-10-10 15:49:18,925 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 10.10 03:49:18" (1/1) ... [2018-10-10 15:49:18,944 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 10.10 03:49:18" (1/1) ... [2018-10-10 15:49:18,945 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 10.10 03:49:18" (1/1) ... [2018-10-10 15:49:18,954 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 10.10 03:49:18" (1/1) ... [2018-10-10 15:49:18,956 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 10.10 03:49:18" (1/1) ... [2018-10-10 15:49:18,958 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 10.10 03:49:18" (1/1) ... [2018-10-10 15:49:18,962 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 15:49:18,963 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 15:49:18,963 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 15:49:18,963 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 15:49:18,964 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 10.10 03:49:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-10 15:49:19,038 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 15:49:19,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 15:49:19,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 15:49:19,893 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 15:49:19,893 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 10.10 03:49:19 BoogieIcfgContainer [2018-10-10 15:49:19,894 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 15:49:19,895 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 15:49:19,895 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 15:49:19,898 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 15:49:19,898 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 10.10 03:49:18" (1/2) ... [2018-10-10 15:49:19,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5be1de92 and model type test-memleak_nexttime_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 03:49:19, skipping insertion in model container [2018-10-10 15:49:19,899 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 10.10 03:49:19" (2/2) ... [2018-10-10 15:49:19,901 INFO L112 eAbstractionObserver]: Analyzing ICFG test-memleak_nexttime_true-valid-memsafety_true-termination.i_16.bpl [2018-10-10 15:49:19,911 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 15:49:19,919 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 15:49:19,939 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 15:49:19,971 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 15:49:19,972 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 15:49:19,972 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 15:49:19,972 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 15:49:19,973 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 15:49:19,973 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 15:49:19,973 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 15:49:19,973 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 15:49:19,973 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 15:49:19,994 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states. [2018-10-10 15:49:20,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-10-10 15:49:20,007 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:49:20,009 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] [2018-10-10 15:49:20,010 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:49:20,016 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:49:20,016 INFO L82 PathProgramCache]: Analyzing trace with hash -1931023582, now seen corresponding path program 1 times [2018-10-10 15:49:20,068 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:49:20,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:49:20,418 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 15:49:20,421 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:49:20,421 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-10 15:49:20,426 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-10 15:49:20,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-10 15:49:20,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-10 15:49:20,447 INFO L87 Difference]: Start difference. First operand 126 states. Second operand 4 states. [2018-10-10 15:49:20,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:49:20,691 INFO L93 Difference]: Finished difference Result 132 states and 133 transitions. [2018-10-10 15:49:20,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-10 15:49:20,694 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 117 [2018-10-10 15:49:20,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:49:20,708 INFO L225 Difference]: With dead ends: 132 [2018-10-10 15:49:20,708 INFO L226 Difference]: Without dead ends: 132 [2018-10-10 15:49:20,710 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 15:49:20,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2018-10-10 15:49:20,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 126. [2018-10-10 15:49:20,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-10-10 15:49:20,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 127 transitions. [2018-10-10 15:49:20,759 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 127 transitions. Word has length 117 [2018-10-10 15:49:20,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:49:20,760 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 127 transitions. [2018-10-10 15:49:20,761 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-10 15:49:20,761 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 127 transitions. [2018-10-10 15:49:20,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-10-10 15:49:20,764 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:49:20,764 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] [2018-10-10 15:49:20,764 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:49:20,765 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:49:20,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1602186462, now seen corresponding path program 1 times [2018-10-10 15:49:20,766 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:49:20,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:49:20,995 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-10-10 15:49:20,996 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:49:20,996 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-10-10 15:49:20,999 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-10 15:49:20,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-10 15:49:20,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-10 15:49:21,000 INFO L87 Difference]: Start difference. First operand 126 states and 127 transitions. Second operand 5 states. [2018-10-10 15:49:21,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:49:21,263 INFO L93 Difference]: Finished difference Result 140 states and 141 transitions. [2018-10-10 15:49:21,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-10 15:49:21,264 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 125 [2018-10-10 15:49:21,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:49:21,267 INFO L225 Difference]: With dead ends: 140 [2018-10-10 15:49:21,267 INFO L226 Difference]: Without dead ends: 140 [2018-10-10 15:49:21,268 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 [2018-10-10 15:49:21,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-10-10 15:49:21,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 134. [2018-10-10 15:49:21,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-10-10 15:49:21,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 135 transitions. [2018-10-10 15:49:21,281 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 135 transitions. Word has length 125 [2018-10-10 15:49:21,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:49:21,282 INFO L481 AbstractCegarLoop]: Abstraction has 134 states and 135 transitions. [2018-10-10 15:49:21,282 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-10 15:49:21,282 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 135 transitions. [2018-10-10 15:49:21,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-10-10 15:49:21,285 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:49:21,285 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] [2018-10-10 15:49:21,286 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:49:21,286 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:49:21,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1733123362, now seen corresponding path program 2 times [2018-10-10 15:49:21,287 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:49:21,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:49:21,552 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-10 15:49:21,552 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:49:21,552 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-10-10 15:49:21,553 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-10 15:49:21,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-10 15:49:21,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-10 15:49:21,554 INFO L87 Difference]: Start difference. First operand 134 states and 135 transitions. Second operand 6 states. [2018-10-10 15:49:22,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:49:22,315 INFO L93 Difference]: Finished difference Result 148 states and 149 transitions. [2018-10-10 15:49:22,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-10 15:49:22,316 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 133 [2018-10-10 15:49:22,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:49:22,319 INFO L225 Difference]: With dead ends: 148 [2018-10-10 15:49:22,319 INFO L226 Difference]: Without dead ends: 148 [2018-10-10 15:49:22,319 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 [2018-10-10 15:49:22,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-10-10 15:49:22,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 142. [2018-10-10 15:49:22,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2018-10-10 15:49:22,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 143 transitions. [2018-10-10 15:49:22,347 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 143 transitions. Word has length 133 [2018-10-10 15:49:22,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:49:22,348 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 143 transitions. [2018-10-10 15:49:22,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-10 15:49:22,348 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 143 transitions. [2018-10-10 15:49:22,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-10-10 15:49:22,353 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:49:22,356 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] [2018-10-10 15:49:22,357 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:49:22,357 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:49:22,357 INFO L82 PathProgramCache]: Analyzing trace with hash -827700958, now seen corresponding path program 3 times [2018-10-10 15:49:22,358 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:49:22,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:49:22,609 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-10-10 15:49:22,610 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:49:22,610 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-10-10 15:49:22,610 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-10 15:49:22,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-10 15:49:22,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-10 15:49:22,611 INFO L87 Difference]: Start difference. First operand 142 states and 143 transitions. Second operand 7 states. [2018-10-10 15:49:23,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:49:23,147 INFO L93 Difference]: Finished difference Result 150 states and 151 transitions. [2018-10-10 15:49:23,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-10 15:49:23,150 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 141 [2018-10-10 15:49:23,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:49:23,152 INFO L225 Difference]: With dead ends: 150 [2018-10-10 15:49:23,152 INFO L226 Difference]: Without dead ends: 150 [2018-10-10 15:49:23,153 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-10-10 15:49:23,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2018-10-10 15:49:23,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2018-10-10 15:49:23,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-10-10 15:49:23,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 151 transitions. [2018-10-10 15:49:23,162 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 151 transitions. Word has length 141 [2018-10-10 15:49:23,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:49:23,162 INFO L481 AbstractCegarLoop]: Abstraction has 150 states and 151 transitions. [2018-10-10 15:49:23,163 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-10 15:49:23,163 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 151 transitions. [2018-10-10 15:49:23,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-10-10 15:49:23,165 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:49:23,166 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] [2018-10-10 15:49:23,166 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:49:23,166 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:49:23,166 INFO L82 PathProgramCache]: Analyzing trace with hash 796153634, now seen corresponding path program 4 times [2018-10-10 15:49:23,167 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:49:23,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:49:24,511 WARN L178 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 27 [2018-10-10 15:49:26,688 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:49:26,688 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:49:26,689 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2018-10-10 15:49:26,689 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-10-10 15:49:26,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-10-10 15:49:26,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1220, Unknown=0, NotChecked=0, Total=1406 [2018-10-10 15:49:26,691 INFO L87 Difference]: Start difference. First operand 150 states and 151 transitions. Second operand 38 states. [2018-10-10 15:49:28,644 WARN L178 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 57 [2018-10-10 15:49:29,314 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 42 [2018-10-10 15:49:30,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:49:30,975 INFO L93 Difference]: Finished difference Result 148 states and 149 transitions. [2018-10-10 15:49:30,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-10-10 15:49:30,976 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 149 [2018-10-10 15:49:30,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:49:30,977 INFO L225 Difference]: With dead ends: 148 [2018-10-10 15:49:30,977 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 15:49:30,980 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 3 SyntacticMatches, 11 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1082 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=698, Invalid=3208, Unknown=0, NotChecked=0, Total=3906 [2018-10-10 15:49:30,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 15:49:30,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 15:49:30,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 15:49:30,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 15:49:30,981 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 149 [2018-10-10 15:49:30,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:49:30,982 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 15:49:30,982 INFO L482 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-10-10 15:49:30,982 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 15:49:30,982 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 15:49:30,988 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 10.10 03:49:30 BoogieIcfgContainer [2018-10-10 15:49:30,988 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 15:49:30,989 INFO L168 Benchmark]: Toolchain (without parser) took 12097.16 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 114.3 MB). Free memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: -128.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 15:49:30,990 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.14 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 15:49:30,991 INFO L168 Benchmark]: Boogie Preprocessor took 68.44 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 15:49:30,992 INFO L168 Benchmark]: RCFGBuilder took 930.74 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. [2018-10-10 15:49:30,992 INFO L168 Benchmark]: TraceAbstraction took 11093.29 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 114.3 MB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -170.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 15:49:30,996 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 0.14 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 68.44 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 930.74 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 11093.29 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 114.3 MB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -170.3 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, 11.0s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 6.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 498 SDtfs, 1126 SDslu, 2036 SDs, 0 SdLazy, 1660 SolverSat, 243 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 11 SyntacticMatches, 11 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1092 ImplicationChecksByTransitivity, 5.8s 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-0-2018-10-10_15-49-31-008.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-0-2018-10-10_15-49-31-008.csv Received shutdown request...