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_SmtInterpol_NoArray.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test8_1_false-valid-memtrack_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 04:16:52,971 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 04:16:52,973 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 04:16:52,987 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 04:16:52,987 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 04:16:52,988 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 04:16:52,989 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 04:16:52,991 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 04:16:52,993 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 04:16:52,994 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 04:16:52,995 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 04:16:52,995 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 04:16:52,996 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 04:16:52,997 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 04:16:52,997 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 04:16:52,999 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 04:16:53,001 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 04:16:53,003 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 04:16:53,004 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 04:16:53,005 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 04:16:53,007 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-04 04:16:53,007 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-04 04:16:53,007 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-04 04:16:53,008 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-04 04:16:53,009 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-04 04:16:53,010 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-04 04:16:53,010 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-04 04:16:53,011 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-04 04:16:53,011 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-04 04:16:53,011 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 04:16:53,012 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 04:16:53,012 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-02-04 04:16:53,022 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 04:16:53,022 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 04:16:53,023 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 04:16:53,023 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 04:16:53,024 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 04:16:53,024 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 04:16:53,024 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 04:16:53,024 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 04:16:53,024 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 04:16:53,025 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 04:16:53,025 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 04:16:53,025 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 04:16:53,025 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 04:16:53,025 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 04:16:53,025 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 04:16:53,025 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 04:16:53,026 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 04:16:53,026 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 04:16:53,026 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 04:16:53,026 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 04:16:53,026 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:16:53,026 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 04:16:53,027 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-04 04:16:53,027 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-04 04:16:53,027 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-02-04 04:16:53,054 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 04:16:53,062 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 04:16:53,065 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 04:16:53,066 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 04:16:53,067 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 04:16:53,067 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test8_1_false-valid-memtrack_true-termination.i [2018-02-04 04:16:53,237 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 04:16:53,238 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 04:16:53,239 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 04:16:53,239 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 04:16:53,244 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 04:16:53,245 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:16:53" (1/1) ... [2018-02-04 04:16:53,248 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b275d44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:53, skipping insertion in model container [2018-02-04 04:16:53,248 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:16:53" (1/1) ... [2018-02-04 04:16:53,259 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:16:53,293 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:16:53,376 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:16:53,386 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:16:53,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:53 WrapperNode [2018-02-04 04:16:53,390 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 04:16:53,391 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 04:16:53,392 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 04:16:53,392 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 04:16:53,406 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:53" (1/1) ... [2018-02-04 04:16:53,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:53" (1/1) ... [2018-02-04 04:16:53,414 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:53" (1/1) ... [2018-02-04 04:16:53,414 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:53" (1/1) ... [2018-02-04 04:16:53,416 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:53" (1/1) ... [2018-02-04 04:16:53,417 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:53" (1/1) ... [2018-02-04 04:16:53,418 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:53" (1/1) ... [2018-02-04 04:16:53,419 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 04:16:53,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 04:16:53,420 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 04:16:53,420 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 04:16:53,421 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:53" (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 04:16:53,455 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 04:16:53,455 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 04:16:53,456 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-02-04 04:16:53,456 INFO L136 BoogieDeclarations]: Found implementation of procedure alloc_8 [2018-02-04 04:16:53,456 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-02-04 04:16:53,456 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 04:16:53,456 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 04:16:53,456 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 04:16:53,456 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 04:16:53,456 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 04:16:53,456 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 04:16:53,456 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-02-04 04:16:53,456 INFO L128 BoogieDeclarations]: Found specification of procedure alloc_8 [2018-02-04 04:16:53,457 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-02-04 04:16:53,457 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 04:16:53,457 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 04:16:53,457 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 04:16:53,537 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 04:16:53,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:16:53 BoogieIcfgContainer [2018-02-04 04:16:53,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 04:16:53,538 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 04:16:53,538 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 04:16:53,540 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 04:16:53,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 04:16:53" (1/3) ... [2018-02-04 04:16:53,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25e9fdc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:16:53, skipping insertion in model container [2018-02-04 04:16:53,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:53" (2/3) ... [2018-02-04 04:16:53,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25e9fdc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:16:53, skipping insertion in model container [2018-02-04 04:16:53,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:16:53" (3/3) ... [2018-02-04 04:16:53,542 INFO L107 eAbstractionObserver]: Analyzing ICFG memleaks_test8_1_false-valid-memtrack_true-termination.i [2018-02-04 04:16:53,547 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-04 04:16:53,550 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-02-04 04:16:53,571 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 04:16:53,571 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 04:16:53,571 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-04 04:16:53,571 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-04 04:16:53,571 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 04:16:53,572 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 04:16:53,572 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 04:16:53,572 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 04:16:53,572 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 04:16:53,579 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-02-04 04:16:53,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-04 04:16:53,585 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:16:53,585 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:16:53,585 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-02-04 04:16:53,588 INFO L82 PathProgramCache]: Analyzing trace with hash 461048067, now seen corresponding path program 1 times [2018-02-04 04:16:53,589 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:16:53,589 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:16:53,622 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:16:53,622 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:16:53,622 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:16:53,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:16:53,656 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:16:53,732 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 04:16:53,734 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:16:53,734 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-04 04:16:53,735 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 04:16:53,743 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 04:16:53,743 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 04:16:53,745 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 3 states. [2018-02-04 04:16:53,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:16:53,854 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2018-02-04 04:16:53,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 04:16:53,855 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2018-02-04 04:16:53,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:16:53,861 INFO L225 Difference]: With dead ends: 34 [2018-02-04 04:16:53,861 INFO L226 Difference]: Without dead ends: 22 [2018-02-04 04:16:53,863 INFO L554 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 [2018-02-04 04:16:53,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-02-04 04:16:53,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-02-04 04:16:53,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-02-04 04:16:53,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2018-02-04 04:16:53,885 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 19 [2018-02-04 04:16:53,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:16:53,885 INFO L432 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2018-02-04 04:16:53,885 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 04:16:53,885 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2018-02-04 04:16:53,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-02-04 04:16:53,886 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:16:53,886 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:16:53,886 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation]=== [2018-02-04 04:16:53,886 INFO L82 PathProgramCache]: Analyzing trace with hash 477136325, now seen corresponding path program 1 times [2018-02-04 04:16:53,886 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:16:53,887 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:16:53,888 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:16:53,888 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:16:53,889 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:16:53,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-04 04:16:53,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-04 04:16:53,950 INFO L410 BasicCegarLoop]: Counterexample might be feasible [2018-02-04 04:16:53,959 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-02-04 04:16:53,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.02 04:16:53 BoogieIcfgContainer [2018-02-04 04:16:53,968 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-04 04:16:53,969 INFO L168 Benchmark]: Toolchain (without parser) took 731.78 ms. Allocated memory was 403.2 MB in the beginning and 609.2 MB in the end (delta: 206.0 MB). Free memory was 359.9 MB in the beginning and 569.8 MB in the end (delta: -210.0 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:16:53,970 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 403.2 MB. Free memory is still 366.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:16:53,970 INFO L168 Benchmark]: CACSL2BoogieTranslator took 152.21 ms. Allocated memory is still 403.2 MB. Free memory was 359.9 MB in the beginning and 348.0 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. [2018-02-04 04:16:53,971 INFO L168 Benchmark]: Boogie Preprocessor took 27.80 ms. Allocated memory is still 403.2 MB. Free memory was 348.0 MB in the beginning and 345.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-02-04 04:16:53,971 INFO L168 Benchmark]: RCFGBuilder took 117.78 ms. Allocated memory is still 403.2 MB. Free memory was 345.3 MB in the beginning and 332.1 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 5.3 GB. [2018-02-04 04:16:53,971 INFO L168 Benchmark]: TraceAbstraction took 430.88 ms. Allocated memory was 403.2 MB in the beginning and 609.2 MB in the end (delta: 206.0 MB). Free memory was 332.1 MB in the beginning and 569.8 MB in the end (delta: -237.8 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:16:53,974 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 403.2 MB. Free memory is still 366.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 152.21 ms. Allocated memory is still 403.2 MB. Free memory was 359.9 MB in the beginning and 348.0 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 27.80 ms. Allocated memory is still 403.2 MB. Free memory was 348.0 MB in the beginning and 345.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 117.78 ms. Allocated memory is still 403.2 MB. Free memory was 345.3 MB in the beginning and 332.1 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 5.3 GB. * TraceAbstraction took 430.88 ms. Allocated memory was 403.2 MB in the beginning and 609.2 MB in the end (delta: 206.0 MB). Free memory was 332.1 MB in the beginning and 569.8 MB in the end (delta: -237.8 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 *a8; VAL [\old(a8)=0, \old(a8)=0, a8={0:0}] [L1451] CALL entry_point() VAL [\old(a8)=0, \old(a8)=0, a8={0:0}] [L1445] CALL alloc_8() VAL [\old(a8)=0, \old(a8)=0, a8={0:0}] [L1437] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(a8)=0, \old(a8)=0, \old(size)=4, a8={0:0}] [L1073] COND TRUE __VERIFIER_nondet_int() [L1074] EXPR, FCALL malloc(size) VAL [\old(a8)=0, \old(a8)=0, \old(size)=4, a8={0:0}, malloc(size)={7:0}, size=4] [L1074] RET return malloc(size); VAL [\old(a8)=0, \old(a8)=0, \old(size)=4, \result={7:0}, a8={0:0}, malloc(size)={7:0}, size=4] [L1437] EXPR ldv_malloc(sizeof(int)) VAL [\old(a8)=0, \old(a8)=0, a8={0:0}, ldv_malloc(sizeof(int))={7:0}] [L1437] RET a8 = (int *)ldv_malloc(sizeof(int)) [L1445] alloc_8() VAL [\old(a8)=0, \old(a8)=0, a8={7:0}] [L1447] RET a8 = 0 VAL [\old(a8)=0, \old(a8)=0, a8={0:0}] [L1451] entry_point() VAL [\old(a8)=0, \old(a8)=0, a8={0:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 25 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 19 SDtfs, 2 SDslu, 9 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=25occurred 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, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 828 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_test8_1_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_04-16-53-981.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test8_1_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-04_04-16-53-981.csv Received shutdown request...