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/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_RubberTaipan+AI_EQ.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test9_2_false-valid-memtrack_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 13:29:41,734 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 13:29:41,738 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 13:29:41,764 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 13:29:41,765 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 13:29:41,766 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 13:29:41,767 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 13:29:41,769 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 13:29:41,771 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 13:29:41,772 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 13:29:41,774 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 13:29:41,774 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 13:29:41,775 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 13:29:41,777 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 13:29:41,778 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 13:29:41,781 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 13:29:41,783 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 13:29:41,785 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 13:29:41,787 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 13:29:41,788 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 13:29:41,792 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-24 13:29:41,792 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-24 13:29:41,792 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-24 13:29:41,794 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-24 13:29:41,795 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-24 13:29:41,797 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-24 13:29:41,797 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-24 13:29:41,798 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-24 13:29:41,798 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-24 13:29:41,798 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 13:29:41,799 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 13:29:41,800 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_RubberTaipan+AI_EQ.epf [2018-01-24 13:29:41,828 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 13:29:41,828 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 13:29:41,829 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 13:29:41,829 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 13:29:41,829 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 13:29:41,830 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 13:29:41,836 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 13:29:41,837 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 13:29:41,837 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 13:29:41,837 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 13:29:41,838 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 13:29:41,838 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 13:29:41,838 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 13:29:41,838 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 13:29:41,838 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 13:29:41,839 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 13:29:41,839 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 13:29:41,839 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 13:29:41,840 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 13:29:41,840 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 13:29:41,840 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 13:29:41,840 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 13:29:41,840 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 13:29:41,841 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 13:29:41,841 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 13:29:41,841 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 13:29:41,841 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 13:29:41,841 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 13:29:41,842 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-01-24 13:29:41,842 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 13:29:41,842 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 13:29:41,842 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 13:29:41,853 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 13:29:41,854 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 13:29:41,941 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 13:29:41,972 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 13:29:41,982 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 13:29:41,986 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 13:29:41,986 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 13:29:41,987 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test9_2_false-valid-memtrack_true-termination.i [2018-01-24 13:29:42,265 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 13:29:42,273 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 13:29:42,274 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 13:29:42,275 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 13:29:42,283 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 13:29:42,284 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 01:29:42" (1/1) ... [2018-01-24 13:29:42,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71d0b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:29:42, skipping insertion in model container [2018-01-24 13:29:42,288 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 01:29:42" (1/1) ... [2018-01-24 13:29:42,312 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 13:29:42,386 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 13:29:42,507 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 13:29:42,525 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 13:29:42,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:29:42 WrapperNode [2018-01-24 13:29:42,534 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 13:29:42,535 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 13:29:42,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 13:29:42,535 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 13:29:42,551 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:29:42" (1/1) ... [2018-01-24 13:29:42,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:29:42" (1/1) ... [2018-01-24 13:29:42,562 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:29:42" (1/1) ... [2018-01-24 13:29:42,562 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:29:42" (1/1) ... [2018-01-24 13:29:42,565 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:29:42" (1/1) ... [2018-01-24 13:29:42,567 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:29:42" (1/1) ... [2018-01-24 13:29:42,568 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:29:42" (1/1) ... [2018-01-24 13:29:42,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 13:29:42,571 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 13:29:42,571 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 13:29:42,571 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 13:29:42,572 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:29:42" (1/1) ... No working directory specified, using /storage/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 [2018-01-24 13:29:42,619 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 13:29:42,619 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 13:29:42,619 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-01-24 13:29:42,619 INFO L136 BoogieDeclarations]: Found implementation of procedure probe_9 [2018-01-24 13:29:42,619 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-24 13:29:42,620 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 13:29:42,620 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 13:29:42,620 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 13:29:42,620 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 13:29:42,620 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 13:29:42,620 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 13:29:42,621 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-01-24 13:29:42,621 INFO L128 BoogieDeclarations]: Found specification of procedure probe_9 [2018-01-24 13:29:42,621 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-24 13:29:42,621 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 13:29:42,621 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 13:29:42,621 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 13:29:42,764 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 13:29:42,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 01:29:42 BoogieIcfgContainer [2018-01-24 13:29:42,765 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 13:29:42,766 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 13:29:42,766 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 13:29:42,768 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 13:29:42,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 01:29:42" (1/3) ... [2018-01-24 13:29:42,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f347fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 01:29:42, skipping insertion in model container [2018-01-24 13:29:42,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:29:42" (2/3) ... [2018-01-24 13:29:42,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f347fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 01:29:42, skipping insertion in model container [2018-01-24 13:29:42,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 01:29:42" (3/3) ... [2018-01-24 13:29:42,772 INFO L105 eAbstractionObserver]: Analyzing ICFG memleaks_test9_2_false-valid-memtrack_true-termination.i [2018-01-24 13:29:42,780 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 13:29:42,787 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-01-24 13:29:42,824 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 13:29:42,824 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 13:29:42,825 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 13:29:42,825 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 13:29:42,825 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 13:29:42,825 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 13:29:42,825 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 13:29:42,825 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 13:29:42,826 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 13:29:42,842 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2018-01-24 13:29:42,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-24 13:29:42,849 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 13:29:42,850 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 13:29:42,850 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-01-24 13:29:42,856 INFO L82 PathProgramCache]: Analyzing trace with hash 107445153, now seen corresponding path program 1 times [2018-01-24 13:29:42,858 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 13:29:42,907 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:29:42,907 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:29:42,907 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:29:42,907 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 13:29:42,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 13:29:42,974 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 13:29:43,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 13:29:43,074 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 13:29:43,075 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 13:29:43,075 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 13:29:43,078 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 13:29:43,091 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 13:29:43,092 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 13:29:43,094 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 3 states. [2018-01-24 13:29:43,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 13:29:43,235 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2018-01-24 13:29:43,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 13:29:43,238 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2018-01-24 13:29:43,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 13:29:43,247 INFO L225 Difference]: With dead ends: 37 [2018-01-24 13:29:43,247 INFO L226 Difference]: Without dead ends: 23 [2018-01-24 13:29:43,250 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 13:29:43,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-01-24 13:29:43,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-01-24 13:29:43,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-01-24 13:29:43,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2018-01-24 13:29:43,280 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 20 [2018-01-24 13:29:43,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 13:29:43,281 INFO L432 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2018-01-24 13:29:43,281 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 13:29:43,281 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2018-01-24 13:29:43,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-24 13:29:43,282 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 13:29:43,282 INFO L322 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] [2018-01-24 13:29:43,282 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation]=== [2018-01-24 13:29:43,283 INFO L82 PathProgramCache]: Analyzing trace with hash -1491142881, now seen corresponding path program 1 times [2018-01-24 13:29:43,283 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 13:29:43,285 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:29:43,285 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:29:43,286 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:29:43,286 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 13:29:43,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-24 13:29:43,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-24 13:29:43,357 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-24 13:29:43,372 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-24 13:29:43,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.01 01:29:43 BoogieIcfgContainer [2018-01-24 13:29:43,389 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-24 13:29:43,390 INFO L168 Benchmark]: Toolchain (without parser) took 1123.87 ms. Allocated memory was 299.9 MB in the beginning and 454.0 MB in the end (delta: 154.1 MB). Free memory was 258.8 MB in the beginning and 416.0 MB in the end (delta: -157.2 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 13:29:43,391 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 299.9 MB. Free memory is still 264.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 13:29:43,391 INFO L168 Benchmark]: CACSL2BoogieTranslator took 260.06 ms. Allocated memory is still 299.9 MB. Free memory was 258.8 MB in the beginning and 244.7 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 5.3 GB. [2018-01-24 13:29:43,392 INFO L168 Benchmark]: Boogie Preprocessor took 35.66 ms. Allocated memory is still 299.9 MB. Free memory is still 244.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 13:29:43,392 INFO L168 Benchmark]: RCFGBuilder took 193.60 ms. Allocated memory is still 299.9 MB. Free memory was 244.7 MB in the beginning and 231.8 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 5.3 GB. [2018-01-24 13:29:43,392 INFO L168 Benchmark]: TraceAbstraction took 623.43 ms. Allocated memory was 299.9 MB in the beginning and 454.0 MB in the end (delta: 154.1 MB). Free memory was 231.8 MB in the beginning and 416.0 MB in the end (delta: -184.2 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 13:29:43,394 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 299.9 MB. Free memory is still 264.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 260.06 ms. Allocated memory is still 299.9 MB. Free memory was 258.8 MB in the beginning and 244.7 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 35.66 ms. Allocated memory is still 299.9 MB. Free memory is still 244.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * RCFGBuilder took 193.60 ms. Allocated memory is still 299.9 MB. Free memory was 244.7 MB in the beginning and 231.8 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 623.43 ms. Allocated memory was 299.9 MB in the beginning and 454.0 MB in the end (delta: 154.1 MB). Free memory was 231.8 MB in the beginning and 416.0 MB in the end (delta: -184.2 MB). There was no memory consumed. 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: 1450]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1450. Possible FailurePath: [L1434] int *a9; VAL [\old(a9)=0, \old(a9)=0, a9={0:0}] [L1451] CALL entry_point() VAL [\old(a9)=0, \old(a9)=0, a9={0:0}] [L1445] CALL probe_9() VAL [\old(a9)=0, \old(a9)=0, a9={0:0}] [L1437] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(a9)=0, \old(a9)=0, \old(size)=4, a9={0:0}] [L1073] COND TRUE __VERIFIER_nondet_int() [L1074] EXPR, FCALL malloc(size) VAL [\old(a9)=0, \old(a9)=0, \old(size)=4, a9={0:0}, malloc(size)={7:0}, size=4] [L1074] RET return malloc(size); VAL [\old(a9)=0, \old(a9)=0, \old(size)=4, \result={7:0}, a9={0:0}, malloc(size)={7:0}, size=4] [L1437] EXPR ldv_malloc(sizeof(int)) VAL [\old(a9)=0, \old(a9)=0, a9={0:0}, ldv_malloc(sizeof(int))={7:0}] [L1437] a9 = (int *)ldv_malloc(sizeof(int)) [L1438] COND TRUE \read(*a9) [L1439] RET return 0; VAL [\old(a9)=0, \old(a9)=0, \result=0, a9={7:0}] [L1445] probe_9() VAL [\old(a9)=0, \old(a9)=0, a9={7:0}, probe_9()=0] [L1447] RET a9 = 0 VAL [\old(a9)=0, \old(a9)=0, a9={0:0}] [L1451] entry_point() VAL [\old(a9)=0, \old(a9)=0, a9={0:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 26 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 21 SDtfs, 3 SDslu, 11 SDs, 0 SdLazy, 13 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 931 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test9_2_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_RubberTaipan+AI_EQ.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-24_13-29-43-403.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test9_2_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_RubberTaipan+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-24_13-29-43-403.csv Received shutdown request...