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 0.1.23-093a8c0 [2018-10-14 16:56:35,663 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 16:56:35,666 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 16:56:35,684 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-10-14 16:56:35,737 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 16:56:35,746 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 16:56:35,746 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 16:56:35,747 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 16:56:35,747 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 16:56:35,748 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 16:56:35,748 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 16:56:35,749 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 16:56:35,749 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 16:56:35,749 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 16:56:35,749 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 16:56:35,749 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 16:56:35,750 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 16:56:35,750 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 16:56:35,751 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 16:56:35,751 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 16:56:35,807 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 16:56:35,820 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 16:56:35,823 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 16:56:35,825 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 16:56:35,826 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 16:56:35,826 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/test-memleak_nexttime_true-valid-memsafety_true-termination.i_11.bpl [2018-10-14 16:56:35,827 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/test-memleak_nexttime_true-valid-memsafety_true-termination.i_11.bpl' [2018-10-14 16:56:35,907 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 16:56:35,909 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-14 16:56:35,909 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 16:56:35,910 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 16:56:35,910 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 16:56:35,938 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 14.10 04:56:35" (1/1) ... [2018-10-14 16:56:35,939 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 14.10 04:56:35" (1/1) ... [2018-10-14 16:56:35,957 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 14.10 04:56:35" (1/1) ... [2018-10-14 16:56:35,958 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 14.10 04:56:35" (1/1) ... [2018-10-14 16:56:35,966 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 14.10 04:56:35" (1/1) ... [2018-10-14 16:56:35,969 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 14.10 04:56:35" (1/1) ... [2018-10-14 16:56:35,971 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 14.10 04:56:35" (1/1) ... [2018-10-14 16:56:35,975 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 16:56:35,976 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 16:56:35,976 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 16:56:35,976 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 16:56:35,977 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 14.10 04:56:35" (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 16:56:36,050 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 16:56:36,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 16:56:36,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 16:56:36,988 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 16:56:36,989 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 14.10 04:56:36 BoogieIcfgContainer [2018-10-14 16:56:36,989 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 16:56:36,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 16:56:36,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 16:56:36,995 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 16:56:36,995 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 14.10 04:56:35" (1/2) ... [2018-10-14 16:56:36,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c05f15 and model type test-memleak_nexttime_true-valid-memsafety_true-termination.i_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:56:36, skipping insertion in model container [2018-10-14 16:56:36,997 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 14.10 04:56:36" (2/2) ... [2018-10-14 16:56:36,999 INFO L112 eAbstractionObserver]: Analyzing ICFG test-memleak_nexttime_true-valid-memsafety_true-termination.i_11.bpl [2018-10-14 16:56:37,009 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 16:56:37,019 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 16:56:37,039 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 16:56:37,068 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 16:56:37,069 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 16:56:37,069 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 16:56:37,070 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 16:56:37,070 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 16:56:37,070 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 16:56:37,070 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 16:56:37,070 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 16:56:37,070 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 16:56:37,092 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states. [2018-10-14 16:56:37,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-10-14 16:56:37,106 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:56:37,107 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] [2018-10-14 16:56:37,109 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:56:37,115 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:56:37,116 INFO L82 PathProgramCache]: Analyzing trace with hash 619733042, now seen corresponding path program 1 times [2018-10-14 16:56:37,182 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:56:37,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:56:37,547 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 16:56:37,549 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:56:37,550 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-14 16:56:37,555 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-14 16:56:37,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-14 16:56:37,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-14 16:56:37,576 INFO L87 Difference]: Start difference. First operand 102 states. Second operand 4 states. [2018-10-14 16:56:37,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:56:37,844 INFO L93 Difference]: Finished difference Result 104 states and 104 transitions. [2018-10-14 16:56:37,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-14 16:56:37,847 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 96 [2018-10-14 16:56:37,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:56:37,862 INFO L225 Difference]: With dead ends: 104 [2018-10-14 16:56:37,863 INFO L226 Difference]: Without dead ends: 104 [2018-10-14 16:56:37,865 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 16:56:37,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-10-14 16:56:37,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 101. [2018-10-14 16:56:37,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2018-10-14 16:56:37,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 101 transitions. [2018-10-14 16:56:37,911 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 101 transitions. Word has length 96 [2018-10-14 16:56:37,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:56:37,912 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 101 transitions. [2018-10-14 16:56:37,913 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-14 16:56:37,913 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 101 transitions. [2018-10-14 16:56:37,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-10-14 16:56:37,917 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:56:37,917 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] [2018-10-14 16:56:37,918 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:56:37,918 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:56:37,918 INFO L82 PathProgramCache]: Analyzing trace with hash 980246132, now seen corresponding path program 1 times [2018-10-14 16:56:37,919 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:56:37,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:56:38,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:56:38,117 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:56:38,118 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-10-14 16:56:38,120 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-14 16:56:38,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-14 16:56:38,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-14 16:56:38,121 INFO L87 Difference]: Start difference. First operand 101 states and 101 transitions. Second operand 5 states. [2018-10-14 16:56:38,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:56:38,315 INFO L93 Difference]: Finished difference Result 108 states and 108 transitions. [2018-10-14 16:56:38,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-14 16:56:38,316 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 100 [2018-10-14 16:56:38,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:56:38,319 INFO L225 Difference]: With dead ends: 108 [2018-10-14 16:56:38,319 INFO L226 Difference]: Without dead ends: 108 [2018-10-14 16:56:38,322 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 [2018-10-14 16:56:38,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2018-10-14 16:56:38,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 105. [2018-10-14 16:56:38,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-10-14 16:56:38,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 105 transitions. [2018-10-14 16:56:38,340 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 105 transitions. Word has length 100 [2018-10-14 16:56:38,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:56:38,341 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 105 transitions. [2018-10-14 16:56:38,341 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-14 16:56:38,341 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 105 transitions. [2018-10-14 16:56:38,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-10-14 16:56:38,344 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:56:38,344 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] [2018-10-14 16:56:38,344 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:56:38,345 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:56:38,345 INFO L82 PathProgramCache]: Analyzing trace with hash 819817398, now seen corresponding path program 2 times [2018-10-14 16:56:38,346 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:56:38,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:56:38,653 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:56:38,653 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:56:38,654 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-10-14 16:56:38,654 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-14 16:56:38,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-14 16:56:38,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-14 16:56:38,655 INFO L87 Difference]: Start difference. First operand 105 states and 105 transitions. Second operand 6 states. [2018-10-14 16:56:38,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:56:38,879 INFO L93 Difference]: Finished difference Result 112 states and 112 transitions. [2018-10-14 16:56:38,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-14 16:56:38,880 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 104 [2018-10-14 16:56:38,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:56:38,885 INFO L225 Difference]: With dead ends: 112 [2018-10-14 16:56:38,885 INFO L226 Difference]: Without dead ends: 112 [2018-10-14 16:56:38,886 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 [2018-10-14 16:56:38,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-10-14 16:56:38,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 109. [2018-10-14 16:56:38,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2018-10-14 16:56:38,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 109 transitions. [2018-10-14 16:56:38,895 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 109 transitions. Word has length 104 [2018-10-14 16:56:38,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:56:38,895 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 109 transitions. [2018-10-14 16:56:38,896 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-14 16:56:38,896 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 109 transitions. [2018-10-14 16:56:38,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-10-14 16:56:38,898 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:56:38,898 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] [2018-10-14 16:56:38,899 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:56:38,899 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:56:38,899 INFO L82 PathProgramCache]: Analyzing trace with hash 706807800, now seen corresponding path program 3 times [2018-10-14 16:56:38,900 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:56:38,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:56:39,131 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:56:39,132 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:56:39,132 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-10-14 16:56:39,133 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-14 16:56:39,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-14 16:56:39,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-14 16:56:39,134 INFO L87 Difference]: Start difference. First operand 109 states and 109 transitions. Second operand 7 states. [2018-10-14 16:56:39,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:56:39,666 INFO L93 Difference]: Finished difference Result 113 states and 113 transitions. [2018-10-14 16:56:39,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-14 16:56:39,667 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 108 [2018-10-14 16:56:39,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:56:39,668 INFO L225 Difference]: With dead ends: 113 [2018-10-14 16:56:39,668 INFO L226 Difference]: Without dead ends: 113 [2018-10-14 16:56:39,669 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 16:56:39,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2018-10-14 16:56:39,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2018-10-14 16:56:39,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-10-14 16:56:39,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 113 transitions. [2018-10-14 16:56:39,678 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 113 transitions. Word has length 108 [2018-10-14 16:56:39,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:56:39,678 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 113 transitions. [2018-10-14 16:56:39,678 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-14 16:56:39,679 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 113 transitions. [2018-10-14 16:56:39,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-10-14 16:56:39,681 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:56:39,681 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] [2018-10-14 16:56:39,681 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:56:39,682 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:56:39,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1675146042, now seen corresponding path program 4 times [2018-10-14 16:56:39,683 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:56:39,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:56:39,922 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-10-14 16:56:39,923 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:56:39,923 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-14 16:56:39,924 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-14 16:56:39,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-14 16:56:39,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-10-14 16:56:39,924 INFO L87 Difference]: Start difference. First operand 113 states and 113 transitions. Second operand 7 states. [2018-10-14 16:56:40,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:56:40,371 INFO L93 Difference]: Finished difference Result 111 states and 111 transitions. [2018-10-14 16:56:40,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-14 16:56:40,372 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 112 [2018-10-14 16:56:40,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:56:40,372 INFO L225 Difference]: With dead ends: 111 [2018-10-14 16:56:40,372 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 16:56:40,373 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-10-14 16:56:40,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 16:56:40,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 16:56:40,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 16:56:40,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 16:56:40,374 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 112 [2018-10-14 16:56:40,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:56:40,375 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 16:56:40,375 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-14 16:56:40,375 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 16:56:40,375 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 16:56:40,380 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 14.10 04:56:40 BoogieIcfgContainer [2018-10-14 16:56:40,380 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 16:56:40,381 INFO L168 Benchmark]: Toolchain (without parser) took 4473.40 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. [2018-10-14 16:56:40,383 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. [2018-10-14 16:56:40,383 INFO L168 Benchmark]: Boogie Preprocessor took 65.74 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 16:56:40,384 INFO L168 Benchmark]: RCFGBuilder took 1013.93 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. [2018-10-14 16:56:40,385 INFO L168 Benchmark]: TraceAbstraction took 3389.23 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. [2018-10-14 16:56:40,389 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 65.74 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 1013.93 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 3389.23 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, 3.3s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 1.7s 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, 0.8s 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, 0.1s SatisfiabilityAnalysisTime, 1.0s 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-0-2018-10-14_16-56-40-401.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-0-2018-10-14_16-56-40-401.csv Received shutdown request...