java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test1_false-valid-memtrack_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 04:47:41,329 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 04:47:41,330 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 04:47:41,339 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 04:47:41,340 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 04:47:41,340 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 04:47:41,341 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 04:47:41,343 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 04:47:41,344 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 04:47:41,344 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 04:47:41,345 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 04:47:41,345 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 04:47:41,346 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 04:47:41,347 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 04:47:41,348 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 04:47:41,350 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 04:47:41,351 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 04:47:41,353 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 04:47:41,354 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 04:47:41,355 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 04:47:41,356 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-04 04:47:41,360 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 04:47:41,361 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 04:47:41,361 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf [2018-02-04 04:47:41,371 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 04:47:41,371 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 04:47:41,372 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 04:47:41,372 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 04:47:41,372 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 04:47:41,372 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 04:47:41,372 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 04:47:41,373 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 04:47:41,373 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 04:47:41,373 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 04:47:41,373 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 04:47:41,373 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 04:47:41,373 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 04:47:41,373 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 04:47:41,373 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 04:47:41,374 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 04:47:41,374 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 04:47:41,374 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 04:47:41,374 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 04:47:41,374 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 04:47:41,374 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:47:41,374 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 04:47:41,375 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-02-04 04:47:41,375 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-02-04 04:47:41,375 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:47:41,403 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 04:47:41,412 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 04:47:41,415 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 04:47:41,416 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 04:47:41,416 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 04:47:41,417 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test1_false-valid-memtrack_true-termination.i [2018-02-04 04:47:41,543 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 04:47:41,544 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 04:47:41,545 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 04:47:41,545 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 04:47:41,550 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 04:47:41,551 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:47:41" (1/1) ... [2018-02-04 04:47:41,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@581e1694 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:47:41, skipping insertion in model container [2018-02-04 04:47:41,553 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:47:41" (1/1) ... [2018-02-04 04:47:41,563 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:47:41,596 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:47:41,681 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:47:41,691 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:47:41,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:47:41 WrapperNode [2018-02-04 04:47:41,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 04:47:41,695 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 04:47:41,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 04:47:41,695 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 04:47:41,703 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:47:41" (1/1) ... [2018-02-04 04:47:41,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:47:41" (1/1) ... [2018-02-04 04:47:41,709 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:47:41" (1/1) ... [2018-02-04 04:47:41,709 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:47:41" (1/1) ... [2018-02-04 04:47:41,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:47:41" (1/1) ... [2018-02-04 04:47:41,712 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:47:41" (1/1) ... [2018-02-04 04:47:41,713 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:47:41" (1/1) ... [2018-02-04 04:47:41,713 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 04:47:41,714 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 04:47:41,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 04:47:41,714 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 04:47:41,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:47:41" (1/1) ... No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:47:41,746 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 04:47:41,746 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 04:47:41,746 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-02-04 04:47:41,746 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-02-04 04:47:41,746 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 04:47:41,746 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 04:47:41,746 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 04:47:41,746 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 04:47:41,746 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 04:47:41,746 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 04:47:41,746 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-02-04 04:47:41,746 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-02-04 04:47:41,747 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 04:47:41,747 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 04:47:41,747 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 04:47:41,825 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 04:47:41,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:47:41 BoogieIcfgContainer [2018-02-04 04:47:41,826 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 04:47:41,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 04:47:41,826 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 04:47:41,828 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 04:47:41,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 04:47:41" (1/3) ... [2018-02-04 04:47:41,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ed202d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:47:41, skipping insertion in model container [2018-02-04 04:47:41,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:47:41" (2/3) ... [2018-02-04 04:47:41,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ed202d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:47:41, skipping insertion in model container [2018-02-04 04:47:41,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:47:41" (3/3) ... [2018-02-04 04:47:41,830 INFO L107 eAbstractionObserver]: Analyzing ICFG memleaks_test1_false-valid-memtrack_true-termination.i [2018-02-04 04:47:41,836 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-04 04:47:41,840 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-02-04 04:47:41,864 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 04:47:41,864 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 04:47:41,864 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-02-04 04:47:41,865 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-04 04:47:41,865 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 04:47:41,865 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 04:47:41,865 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 04:47:41,865 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 04:47:41,866 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 04:47:41,874 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-02-04 04:47:41,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-04 04:47:41,881 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:47:41,881 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:47:41,881 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-02-04 04:47:41,884 INFO L82 PathProgramCache]: Analyzing trace with hash -2028105177, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:47:41,892 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:47:41,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:47:41,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:47:42,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:47:42,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:47:42,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:47:42,044 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:47:42,045 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:47:42,045 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:47:42,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:47:42,046 INFO L182 omatonBuilderFactory]: Interpolants [38#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 39#(and (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)), 24#true, 25#false, 29#(= |#valid| |old(#valid)|)] [2018-02-04 04:47:42,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:47:42,046 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:47:42,053 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:47:42,054 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:47:42,055 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 5 states. [2018-02-04 04:47:42,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:47:42,143 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2018-02-04 04:47:42,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 04:47:42,145 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-02-04 04:47:42,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:47:42,151 INFO L225 Difference]: With dead ends: 28 [2018-02-04 04:47:42,151 INFO L226 Difference]: Without dead ends: 18 [2018-02-04 04:47:42,153 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-02-04 04:47:42,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-02-04 04:47:42,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-02-04 04:47:42,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-02-04 04:47:42,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2018-02-04 04:47:42,174 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 15 [2018-02-04 04:47:42,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:47:42,174 INFO L432 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2018-02-04 04:47:42,174 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:47:42,174 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2018-02-04 04:47:42,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-02-04 04:47:42,175 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:47:42,175 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:47:42,175 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation]=== [2018-02-04 04:47:42,175 INFO L82 PathProgramCache]: Analyzing trace with hash -636806683, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:47:42,179 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:47:42,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-04 04:47:42,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-04 04:47:42,228 INFO L410 BasicCegarLoop]: Counterexample might be feasible [2018-02-04 04:47:42,234 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-02-04 04:47:42,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.02 04:47:42 BoogieIcfgContainer [2018-02-04 04:47:42,241 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-04 04:47:42,242 INFO L168 Benchmark]: Toolchain (without parser) took 698.32 ms. Allocated memory is still 402.1 MB. Free memory was 359.0 MB in the beginning and 291.0 MB in the end (delta: 68.0 MB). Peak memory consumption was 68.0 MB. Max. memory is 5.3 GB. [2018-02-04 04:47:42,243 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 402.1 MB. Free memory is still 365.6 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:47:42,243 INFO L168 Benchmark]: CACSL2BoogieTranslator took 150.06 ms. Allocated memory is still 402.1 MB. Free memory was 359.0 MB in the beginning and 347.1 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. [2018-02-04 04:47:42,243 INFO L168 Benchmark]: Boogie Preprocessor took 18.56 ms. Allocated memory is still 402.1 MB. Free memory was 347.1 MB in the beginning and 344.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-02-04 04:47:42,244 INFO L168 Benchmark]: RCFGBuilder took 111.95 ms. Allocated memory is still 402.1 MB. Free memory was 344.5 MB in the beginning and 331.6 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 5.3 GB. [2018-02-04 04:47:42,244 INFO L168 Benchmark]: TraceAbstraction took 415.47 ms. Allocated memory is still 402.1 MB. Free memory was 331.6 MB in the beginning and 291.0 MB in the end (delta: 40.6 MB). Peak memory consumption was 40.6 MB. Max. memory is 5.3 GB. [2018-02-04 04:47:42,247 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 402.1 MB. Free memory is still 365.6 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 150.06 ms. Allocated memory is still 402.1 MB. Free memory was 359.0 MB in the beginning and 347.1 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 18.56 ms. Allocated memory is still 402.1 MB. Free memory was 347.1 MB in the beginning and 344.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 111.95 ms. Allocated memory is still 402.1 MB. Free memory was 344.5 MB in the beginning and 331.6 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 5.3 GB. * TraceAbstraction took 415.47 ms. Allocated memory is still 402.1 MB. Free memory was 331.6 MB in the beginning and 291.0 MB in the end (delta: 40.6 MB). Peak memory consumption was 40.6 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1438]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1438. Possible FailurePath: [L1439] CALL entry_point() [L1435] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4] [L1073] COND TRUE __VERIFIER_nondet_int() [L1074] EXPR, FCALL malloc(size) VAL [\old(size)=4, malloc(size)={7:0}, size=4] [L1074] RET return malloc(size); VAL [\old(size)=4, \result={7:0}, malloc(size)={7:0}, size=4] [L1435] EXPR ldv_malloc(sizeof(int)) VAL [ldv_malloc(sizeof(int))={7:0}] [L1435] RET int *p = (int *)ldv_malloc(sizeof(int)); [L1439] entry_point() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 21 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 16 SDtfs, 14 SDslu, 16 SDs, 0 SdLazy, 29 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 714 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test1_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_04-47-42-254.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test1_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-04_04-47-42-254.csv Received shutdown request...