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_test8_1_false-valid-memtrack_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c17473d-m [2018-02-04 20:50:21,479 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 20:50:21,480 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 20:50:21,492 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 20:50:21,493 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 20:50:21,493 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 20:50:21,494 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 20:50:21,496 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 20:50:21,497 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 20:50:21,498 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 20:50:21,499 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 20:50:21,499 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 20:50:21,500 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 20:50:21,500 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 20:50:21,501 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 20:50:21,503 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 20:50:21,504 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 20:50:21,506 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 20:50:21,507 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 20:50:21,508 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 20:50:21,510 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-04 20:50:21,510 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-04 20:50:21,510 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-04 20:50:21,511 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-04 20:50:21,512 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-04 20:50:21,512 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-04 20:50:21,513 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-04 20:50:21,513 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-04 20:50:21,513 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-04 20:50:21,513 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 20:50:21,514 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 20:50:21,514 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 20:50:21,523 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 20:50:21,523 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 20:50:21,524 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 20:50:21,524 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 20:50:21,524 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 20:50:21,524 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 20:50:21,524 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 20:50:21,524 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 20:50:21,525 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 20:50:21,525 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 20:50:21,525 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 20:50:21,525 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 20:50:21,525 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 20:50:21,525 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 20:50:21,525 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 20:50:21,525 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 20:50:21,525 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 20:50:21,525 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 20:50:21,525 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 20:50:21,526 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 20:50:21,526 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 20:50:21,526 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-02-04 20:50:21,526 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-02-04 20:50:21,526 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:50:21,554 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 20:50:21,563 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 20:50:21,566 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 20:50:21,567 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 20:50:21,567 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 20:50:21,568 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test8_1_false-valid-memtrack_true-termination.i [2018-02-04 20:50:21,714 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 20:50:21,715 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 20:50:21,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 20:50:21,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 20:50:21,720 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 20:50:21,720 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 08:50:21" (1/1) ... [2018-02-04 20:50:21,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fc89e21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:50:21, skipping insertion in model container [2018-02-04 20:50:21,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 08:50:21" (1/1) ... [2018-02-04 20:50:21,732 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 20:50:21,766 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 20:50:21,843 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 20:50:21,852 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 20:50:21,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:50:21 WrapperNode [2018-02-04 20:50:21,855 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 20:50:21,856 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 20:50:21,856 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 20:50:21,856 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 20:50:21,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:50:21" (1/1) ... [2018-02-04 20:50:21,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:50:21" (1/1) ... [2018-02-04 20:50:21,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:50:21" (1/1) ... [2018-02-04 20:50:21,873 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:50:21" (1/1) ... [2018-02-04 20:50:21,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:50:21" (1/1) ... [2018-02-04 20:50:21,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:50:21" (1/1) ... [2018-02-04 20:50:21,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:50:21" (1/1) ... [2018-02-04 20:50:21,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 20:50:21,878 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 20:50:21,878 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 20:50:21,878 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 20:50:21,879 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:50:21" (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 20:50:21,912 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 20:50:21,912 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 20:50:21,912 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-02-04 20:50:21,912 INFO L136 BoogieDeclarations]: Found implementation of procedure alloc_8 [2018-02-04 20:50:21,912 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-02-04 20:50:21,912 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 20:50:21,913 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 20:50:21,913 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 20:50:21,913 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 20:50:21,913 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 20:50:21,913 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 20:50:21,913 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-02-04 20:50:21,913 INFO L128 BoogieDeclarations]: Found specification of procedure alloc_8 [2018-02-04 20:50:21,913 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-02-04 20:50:21,913 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 20:50:21,913 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 20:50:21,913 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 20:50:21,997 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 20:50:21,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 08:50:21 BoogieIcfgContainer [2018-02-04 20:50:21,997 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 20:50:21,998 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 20:50:21,998 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 20:50:22,000 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 20:50:22,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 08:50:21" (1/3) ... [2018-02-04 20:50:22,001 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e867f80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 08:50:22, skipping insertion in model container [2018-02-04 20:50:22,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:50:21" (2/3) ... [2018-02-04 20:50:22,001 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e867f80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 08:50:22, skipping insertion in model container [2018-02-04 20:50:22,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 08:50:21" (3/3) ... [2018-02-04 20:50:22,003 INFO L107 eAbstractionObserver]: Analyzing ICFG memleaks_test8_1_false-valid-memtrack_true-termination.i [2018-02-04 20:50:22,008 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-04 20:50:22,012 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-02-04 20:50:22,033 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 20:50:22,033 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 20:50:22,034 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-02-04 20:50:22,034 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-04 20:50:22,034 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 20:50:22,034 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 20:50:22,034 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 20:50:22,035 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 20:50:22,035 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 20:50:22,042 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-02-04 20:50:22,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-04 20:50:22,050 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:50:22,051 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 20:50:22,051 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-02-04 20:50:22,054 INFO L82 PathProgramCache]: Analyzing trace with hash 461048067, 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 20:50:22,064 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:50:22,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:50:22,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:50:22,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:50:22,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:50:22,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:50:22,267 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 20:50:22,286 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:50:22,287 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 20:50:22,288 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:50:22,288 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 20:50:22,288 INFO L182 omatonBuilderFactory]: Interpolants [33#(= |#valid| |old(#valid)|), 28#true, 60#(and (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)), 29#false, 46#(and (= ~a8.base |old(~a8.base)|) (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~a8.offset |old(~a8.offset)|)), 47#(and (= ~a8.base |old(~a8.base)|) (= |#valid| |old(#valid)|) (= ~a8.offset |old(~a8.offset)|) (= |old(#length)| |#length|))] [2018-02-04 20:50:22,289 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 20:50:22,289 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 20:50:22,297 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 20:50:22,298 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-02-04 20:50:22,299 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 6 states. [2018-02-04 20:50:22,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:50:22,394 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2018-02-04 20:50:22,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 20:50:22,395 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-02-04 20:50:22,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:50:22,402 INFO L225 Difference]: With dead ends: 35 [2018-02-04 20:50:22,402 INFO L226 Difference]: Without dead ends: 22 [2018-02-04 20:50:22,404 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-02-04 20:50:22,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-02-04 20:50:22,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-02-04 20:50:22,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-02-04 20:50:22,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2018-02-04 20:50:22,428 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 19 [2018-02-04 20:50:22,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:50:22,429 INFO L432 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2018-02-04 20:50:22,429 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 20:50:22,429 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2018-02-04 20:50:22,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-02-04 20:50:22,429 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:50:22,429 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 20:50:22,430 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation]=== [2018-02-04 20:50:22,431 INFO L82 PathProgramCache]: Analyzing trace with hash 477136325, 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 20:50:22,436 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:50:22,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-04 20:50:22,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-04 20:50:22,507 INFO L410 BasicCegarLoop]: Counterexample might be feasible [2018-02-04 20:50:22,518 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-02-04 20:50:22,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.02 08:50:22 BoogieIcfgContainer [2018-02-04 20:50:22,529 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-04 20:50:22,530 INFO L168 Benchmark]: Toolchain (without parser) took 815.41 ms. Allocated memory is still 403.7 MB. Free memory was 360.6 MB in the beginning and 282.1 MB in the end (delta: 78.5 MB). Peak memory consumption was 78.5 MB. Max. memory is 5.3 GB. [2018-02-04 20:50:22,531 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 403.7 MB. Free memory is still 367.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 20:50:22,531 INFO L168 Benchmark]: CACSL2BoogieTranslator took 140.22 ms. Allocated memory is still 403.7 MB. Free memory was 360.6 MB in the beginning and 348.7 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. [2018-02-04 20:50:22,532 INFO L168 Benchmark]: Boogie Preprocessor took 21.85 ms. Allocated memory is still 403.7 MB. Free memory was 348.7 MB in the beginning and 346.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-02-04 20:50:22,532 INFO L168 Benchmark]: RCFGBuilder took 119.44 ms. Allocated memory is still 403.7 MB. Free memory was 346.0 MB in the beginning and 333.2 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 5.3 GB. [2018-02-04 20:50:22,533 INFO L168 Benchmark]: TraceAbstraction took 531.33 ms. Allocated memory is still 403.7 MB. Free memory was 333.2 MB in the beginning and 282.1 MB in the end (delta: 51.1 MB). Peak memory consumption was 51.1 MB. Max. memory is 5.3 GB. [2018-02-04 20:50:22,535 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 403.7 MB. Free memory is still 367.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 140.22 ms. Allocated memory is still 403.7 MB. Free memory was 360.6 MB in the beginning and 348.7 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 21.85 ms. Allocated memory is still 403.7 MB. Free memory was 348.7 MB in the beginning and 346.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 119.44 ms. Allocated memory is still 403.7 MB. Free memory was 346.0 MB in the beginning and 333.2 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 5.3 GB. * TraceAbstraction took 531.33 ms. Allocated memory is still 403.7 MB. Free memory was 333.2 MB in the beginning and 282.1 MB in the end (delta: 51.1 MB). Peak memory consumption was 51.1 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: - CounterExampleResult [Line: 1450]: not all allocated memory was freed not all allocated memory was freed We found a 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)={9:0}, size=4] [L1074] RET return malloc(size); VAL [\old(a8)=0, \old(a8)=0, \old(size)=4, \result={9:0}, a8={0:0}, malloc(size)={9:0}, size=4] [L1437] EXPR ldv_malloc(sizeof(int)) VAL [\old(a8)=0, \old(a8)=0, a8={0:0}, ldv_malloc(sizeof(int))={9:0}] [L1437] RET a8 = (int *)ldv_malloc(sizeof(int)) [L1445] alloc_8() VAL [\old(a8)=0, \old(a8)=0, a8={9:0}] [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, 19 SDslu, 11 SDs, 0 SdLazy, 26 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s 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, 0.1s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 1530 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 proved your program to be incorrect! 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_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_20-50-22-541.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_z3.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-04_20-50-22-541.csv Received shutdown request...