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_test5_1_false-valid-memtrack_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 04:16:43,465 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 04:16:43,466 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 04:16:43,478 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 04:16:43,478 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 04:16:43,479 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 04:16:43,480 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 04:16:43,482 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 04:16:43,483 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 04:16:43,483 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 04:16:43,484 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 04:16:43,484 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 04:16:43,485 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 04:16:43,486 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 04:16:43,487 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 04:16:43,489 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 04:16:43,490 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 04:16:43,492 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 04:16:43,493 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 04:16:43,494 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 04:16:43,495 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-04 04:16:43,496 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-04 04:16:43,496 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-04 04:16:43,497 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-04 04:16:43,497 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-04 04:16:43,498 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-04 04:16:43,499 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-04 04:16:43,499 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-04 04:16:43,499 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-04 04:16:43,499 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 04:16:43,500 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 04:16:43,500 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 04:16:43,510 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 04:16:43,510 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 04:16:43,511 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 04:16:43,512 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 04:16:43,512 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 04:16:43,512 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 04:16:43,512 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 04:16:43,512 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 04:16:43,512 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 04:16:43,513 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 04:16:43,513 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 04:16:43,513 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 04:16:43,513 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 04:16:43,513 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 04:16:43,513 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 04:16:43,514 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 04:16:43,514 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 04:16:43,514 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 04:16:43,514 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 04:16:43,514 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 04:16:43,514 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:16:43,515 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 04:16:43,515 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-04 04:16:43,515 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-04 04:16:43,515 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-02-04 04:16:43,545 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 04:16:43,555 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 04:16:43,558 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 04:16:43,560 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 04:16:43,560 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 04:16:43,561 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test5_1_false-valid-memtrack_true-termination.i [2018-02-04 04:16:43,710 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 04:16:43,711 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 04:16:43,712 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 04:16:43,712 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 04:16:43,719 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 04:16:43,720 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:16:43" (1/1) ... [2018-02-04 04:16:43,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@228d72e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:43, skipping insertion in model container [2018-02-04 04:16:43,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:16:43" (1/1) ... [2018-02-04 04:16:43,736 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:16:43,775 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:16:43,859 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:16:43,869 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:16:43,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:43 WrapperNode [2018-02-04 04:16:43,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 04:16:43,875 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 04:16:43,875 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 04:16:43,875 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 04:16:43,883 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:43" (1/1) ... [2018-02-04 04:16:43,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:43" (1/1) ... [2018-02-04 04:16:43,889 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:43" (1/1) ... [2018-02-04 04:16:43,889 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:43" (1/1) ... [2018-02-04 04:16:43,892 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:43" (1/1) ... [2018-02-04 04:16:43,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:43" (1/1) ... [2018-02-04 04:16:43,894 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:43" (1/1) ... [2018-02-04 04:16:43,895 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 04:16:43,895 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 04:16:43,895 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 04:16:43,895 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 04:16:43,896 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:43" (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 04:16:43,928 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 04:16:43,928 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 04:16:43,929 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-02-04 04:16:43,929 INFO L136 BoogieDeclarations]: Found implementation of procedure f5 [2018-02-04 04:16:43,929 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-02-04 04:16:43,929 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 04:16:43,929 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 04:16:43,929 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 04:16:43,929 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 04:16:43,929 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 04:16:43,929 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 04:16:43,929 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-02-04 04:16:43,929 INFO L128 BoogieDeclarations]: Found specification of procedure f5 [2018-02-04 04:16:43,929 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-02-04 04:16:43,930 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 04:16:43,930 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 04:16:43,930 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 04:16:44,017 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 04:16:44,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:16:44 BoogieIcfgContainer [2018-02-04 04:16:44,018 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 04:16:44,019 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 04:16:44,019 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 04:16:44,021 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 04:16:44,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 04:16:43" (1/3) ... [2018-02-04 04:16:44,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@250195b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:16:44, skipping insertion in model container [2018-02-04 04:16:44,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:43" (2/3) ... [2018-02-04 04:16:44,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@250195b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:16:44, skipping insertion in model container [2018-02-04 04:16:44,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:16:44" (3/3) ... [2018-02-04 04:16:44,023 INFO L107 eAbstractionObserver]: Analyzing ICFG memleaks_test5_1_false-valid-memtrack_true-termination.i [2018-02-04 04:16:44,029 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-04 04:16:44,034 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-02-04 04:16:44,056 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 04:16:44,056 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 04:16:44,056 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-04 04:16:44,056 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-04 04:16:44,056 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 04:16:44,056 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 04:16:44,056 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 04:16:44,056 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 04:16:44,057 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 04:16:44,065 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-02-04 04:16:44,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-04 04:16:44,071 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:16:44,072 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 04:16:44,072 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-02-04 04:16:44,075 INFO L82 PathProgramCache]: Analyzing trace with hash -797523410, now seen corresponding path program 1 times [2018-02-04 04:16:44,076 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:16:44,076 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:16:44,111 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:16:44,112 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:16:44,112 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:16:44,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:16:44,146 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:16:44,207 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 04:16:44,208 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:16:44,208 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-04 04:16:44,210 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 04:16:44,218 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 04:16:44,219 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 04:16:44,220 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 3 states. [2018-02-04 04:16:44,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:16:44,354 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2018-02-04 04:16:44,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 04:16:44,355 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2018-02-04 04:16:44,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:16:44,362 INFO L225 Difference]: With dead ends: 34 [2018-02-04 04:16:44,362 INFO L226 Difference]: Without dead ends: 22 [2018-02-04 04:16:44,363 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 04:16:44,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-02-04 04:16:44,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-02-04 04:16:44,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-02-04 04:16:44,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2018-02-04 04:16:44,386 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 19 [2018-02-04 04:16:44,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:16:44,387 INFO L432 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2018-02-04 04:16:44,387 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 04:16:44,387 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2018-02-04 04:16:44,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-02-04 04:16:44,387 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:16:44,388 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 04:16:44,388 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation]=== [2018-02-04 04:16:44,388 INFO L82 PathProgramCache]: Analyzing trace with hash -1690674832, now seen corresponding path program 1 times [2018-02-04 04:16:44,388 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:16:44,388 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:16:44,389 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:16:44,389 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:16:44,389 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:16:44,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-04 04:16:44,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-04 04:16:44,438 INFO L410 BasicCegarLoop]: Counterexample might be feasible [2018-02-04 04:16:44,447 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-02-04 04:16:44,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.02 04:16:44 BoogieIcfgContainer [2018-02-04 04:16:44,456 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-04 04:16:44,457 INFO L168 Benchmark]: Toolchain (without parser) took 746.50 ms. Allocated memory was 406.8 MB in the beginning and 623.9 MB in the end (delta: 217.1 MB). Free memory was 363.5 MB in the beginning and 584.8 MB in the end (delta: -221.3 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:16:44,457 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 406.8 MB. Free memory is still 370.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:16:44,458 INFO L168 Benchmark]: CACSL2BoogieTranslator took 162.96 ms. Allocated memory is still 406.8 MB. Free memory was 363.5 MB in the beginning and 351.6 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. [2018-02-04 04:16:44,458 INFO L168 Benchmark]: Boogie Preprocessor took 20.14 ms. Allocated memory is still 406.8 MB. Free memory was 351.6 MB in the beginning and 349.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-02-04 04:16:44,458 INFO L168 Benchmark]: RCFGBuilder took 123.03 ms. Allocated memory is still 406.8 MB. Free memory was 349.0 MB in the beginning and 335.8 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 5.3 GB. [2018-02-04 04:16:44,458 INFO L168 Benchmark]: TraceAbstraction took 437.33 ms. Allocated memory was 406.8 MB in the beginning and 623.9 MB in the end (delta: 217.1 MB). Free memory was 335.8 MB in the beginning and 584.8 MB in the end (delta: -249.1 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:16:44,459 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 406.8 MB. Free memory is still 370.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 162.96 ms. Allocated memory is still 406.8 MB. Free memory was 363.5 MB in the beginning and 351.6 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 20.14 ms. Allocated memory is still 406.8 MB. Free memory was 351.6 MB in the beginning and 349.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 123.03 ms. Allocated memory is still 406.8 MB. Free memory was 349.0 MB in the beginning and 335.8 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 5.3 GB. * TraceAbstraction took 437.33 ms. Allocated memory was 406.8 MB in the beginning and 623.9 MB in the end (delta: 217.1 MB). Free memory was 335.8 MB in the beginning and 584.8 MB in the end (delta: -249.1 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: 1442]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1442. Possible FailurePath: [L1443] CALL entry_point() [L1439] CALL f5() [L1435] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4] [L1073] COND TRUE __VERIFIER_nondet_int() [L1074] EXPR, FCALL malloc(size) VAL [\old(size)=4, malloc(size)={7:0}, size=4] [L1074] RET return malloc(size); VAL [\old(size)=4, \result={7:0}, malloc(size)={7:0}, size=4] [L1435] EXPR ldv_malloc(sizeof(int)) VAL [ldv_malloc(sizeof(int))={7:0}] [L1435] RET int *p = (int *)ldv_malloc(sizeof(int)); [L1439] RET f5() VAL [f5()={8:6}] [L1443] entry_point() - 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, 0.1s 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_test5_1_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_04-16-44-464.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test5_1_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-04_04-16-44-464.csv Received shutdown request...