./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test16_2_false-valid-memtrack_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_29c2a8a2-9b25-472e-a7ac-40364474164a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_29c2a8a2-9b25-472e-a7ac-40364474164a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_29c2a8a2-9b25-472e-a7ac-40364474164a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_29c2a8a2-9b25-472e-a7ac-40364474164a/bin-2019/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test16_2_false-valid-memtrack_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_29c2a8a2-9b25-472e-a7ac-40364474164a/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_29c2a8a2-9b25-472e-a7ac-40364474164a/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b6b92b9f848445aceba527387fce4d09a311e956 ................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_29c2a8a2-9b25-472e-a7ac-40364474164a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_29c2a8a2-9b25-472e-a7ac-40364474164a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_29c2a8a2-9b25-472e-a7ac-40364474164a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_29c2a8a2-9b25-472e-a7ac-40364474164a/bin-2019/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test16_2_false-valid-memtrack_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_29c2a8a2-9b25-472e-a7ac-40364474164a/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_29c2a8a2-9b25-472e-a7ac-40364474164a/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b6b92b9f848445aceba527387fce4d09a311e956 ............................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 22:23:44,405 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 22:23:44,406 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 22:23:44,412 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 22:23:44,412 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 22:23:44,413 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 22:23:44,414 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 22:23:44,415 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 22:23:44,416 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 22:23:44,417 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 22:23:44,418 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 22:23:44,418 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 22:23:44,419 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 22:23:44,420 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 22:23:44,420 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 22:23:44,421 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 22:23:44,422 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 22:23:44,423 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 22:23:44,424 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 22:23:44,426 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 22:23:44,427 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 22:23:44,427 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 22:23:44,429 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 22:23:44,429 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 22:23:44,429 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 22:23:44,430 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 22:23:44,431 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 22:23:44,432 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 22:23:44,432 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 22:23:44,433 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 22:23:44,433 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 22:23:44,433 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 22:23:44,434 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 22:23:44,434 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 22:23:44,434 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 22:23:44,435 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 22:23:44,435 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_29c2a8a2-9b25-472e-a7ac-40364474164a/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2018-12-02 22:23:44,445 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 22:23:44,446 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 22:23:44,446 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 22:23:44,446 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 22:23:44,447 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 22:23:44,447 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 22:23:44,447 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 22:23:44,447 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 22:23:44,447 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 22:23:44,447 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 22:23:44,448 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 22:23:44,448 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 22:23:44,448 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 22:23:44,448 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 22:23:44,449 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 22:23:44,449 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 22:23:44,449 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 22:23:44,449 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 22:23:44,449 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 22:23:44,449 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 22:23:44,450 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 22:23:44,450 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-02 22:23:44,450 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-02 22:23:44,450 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-02 22:23:44,450 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 22:23:44,450 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 22:23:44,451 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 22:23:44,451 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 22:23:44,451 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 22:23:44,451 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 22:23:44,451 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 22:23:44,451 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 22:23:44,452 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 22:23:44,452 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 22:23:44,452 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 22:23:44,452 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 22:23:44,452 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_29c2a8a2-9b25-472e-a7ac-40364474164a/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6b92b9f848445aceba527387fce4d09a311e956 [2018-12-02 22:23:44,470 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 22:23:44,478 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 22:23:44,480 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 22:23:44,481 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 22:23:44,482 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 22:23:44,482 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_29c2a8a2-9b25-472e-a7ac-40364474164a/bin-2019/utaipan/../../sv-benchmarks/c/ldv-memsafety/memleaks_test16_2_false-valid-memtrack_true-termination.i [2018-12-02 22:23:44,520 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_29c2a8a2-9b25-472e-a7ac-40364474164a/bin-2019/utaipan/data/23fc3a531/ba1f269cdb394cf3a0598ebd6f991d08/FLAGf932e051c [2018-12-02 22:23:44,842 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 22:23:44,843 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_29c2a8a2-9b25-472e-a7ac-40364474164a/sv-benchmarks/c/ldv-memsafety/memleaks_test16_2_false-valid-memtrack_true-termination.i [2018-12-02 22:23:44,850 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_29c2a8a2-9b25-472e-a7ac-40364474164a/bin-2019/utaipan/data/23fc3a531/ba1f269cdb394cf3a0598ebd6f991d08/FLAGf932e051c [2018-12-02 22:23:44,858 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_29c2a8a2-9b25-472e-a7ac-40364474164a/bin-2019/utaipan/data/23fc3a531/ba1f269cdb394cf3a0598ebd6f991d08 [2018-12-02 22:23:44,860 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 22:23:44,861 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 22:23:44,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 22:23:44,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 22:23:44,863 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 22:23:44,864 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:23:44" (1/1) ... [2018-12-02 22:23:44,865 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@461c4b29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:44, skipping insertion in model container [2018-12-02 22:23:44,865 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:23:44" (1/1) ... [2018-12-02 22:23:44,869 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 22:23:44,890 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 22:23:45,111 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 22:23:45,120 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 22:23:45,154 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 22:23:45,188 INFO L195 MainTranslator]: Completed translation [2018-12-02 22:23:45,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:45 WrapperNode [2018-12-02 22:23:45,188 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 22:23:45,189 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 22:23:45,189 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 22:23:45,189 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 22:23:45,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:45" (1/1) ... [2018-12-02 22:23:45,206 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:45" (1/1) ... [2018-12-02 22:23:45,211 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 22:23:45,211 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 22:23:45,211 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 22:23:45,212 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 22:23:45,217 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:45" (1/1) ... [2018-12-02 22:23:45,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:45" (1/1) ... [2018-12-02 22:23:45,219 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:45" (1/1) ... [2018-12-02 22:23:45,219 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:45" (1/1) ... [2018-12-02 22:23:45,222 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:45" (1/1) ... [2018-12-02 22:23:45,223 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:45" (1/1) ... [2018-12-02 22:23:45,224 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:45" (1/1) ... [2018-12-02 22:23:45,225 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 22:23:45,225 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 22:23:45,226 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 22:23:45,226 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 22:23:45,226 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_29c2a8a2-9b25-472e-a7ac-40364474164a/bin-2019/utaipan/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 [2018-12-02 22:23:45,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 22:23:45,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-12-02 22:23:45,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-12-02 22:23:45,259 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_16 [2018-12-02 22:23:45,259 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_16 [2018-12-02 22:23:45,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 22:23:45,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 22:23:45,259 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 22:23:45,259 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 22:23:45,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-12-02 22:23:45,259 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2018-12-02 22:23:45,259 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2018-12-02 22:23:45,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 22:23:45,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 22:23:45,374 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 22:23:45,374 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-02 22:23:45,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:23:45 BoogieIcfgContainer [2018-12-02 22:23:45,374 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 22:23:45,374 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 22:23:45,375 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 22:23:45,376 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 22:23:45,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:23:44" (1/3) ... [2018-12-02 22:23:45,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6407e154 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:23:45, skipping insertion in model container [2018-12-02 22:23:45,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:45" (2/3) ... [2018-12-02 22:23:45,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6407e154 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:23:45, skipping insertion in model container [2018-12-02 22:23:45,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:23:45" (3/3) ... [2018-12-02 22:23:45,378 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test16_2_false-valid-memtrack_true-termination.i [2018-12-02 22:23:45,384 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 22:23:45,388 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 22:23:45,397 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 22:23:45,411 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 22:23:45,411 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-02 22:23:45,411 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 22:23:45,411 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 22:23:45,411 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 22:23:45,412 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 22:23:45,412 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 22:23:45,412 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 22:23:45,419 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2018-12-02 22:23:45,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-02 22:23:45,425 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:23:45,425 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 22:23:45,427 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-02 22:23:45,430 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:23:45,430 INFO L82 PathProgramCache]: Analyzing trace with hash -1146427586, now seen corresponding path program 1 times [2018-12-02 22:23:45,431 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 22:23:45,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:23:45,464 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:23:45,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:23:45,464 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 22:23:45,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:23:45,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 22:23:45,531 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 22:23:45,531 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 22:23:45,531 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 22:23:45,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 22:23:45,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 22:23:45,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 22:23:45,543 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 3 states. [2018-12-02 22:23:45,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:23:45,585 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2018-12-02 22:23:45,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 22:23:45,586 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-12-02 22:23:45,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:23:45,591 INFO L225 Difference]: With dead ends: 35 [2018-12-02 22:23:45,591 INFO L226 Difference]: Without dead ends: 23 [2018-12-02 22:23:45,592 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 22:23:45,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-12-02 22:23:45,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-12-02 22:23:45,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-12-02 22:23:45,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2018-12-02 22:23:45,612 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 16 [2018-12-02 22:23:45,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:23:45,612 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2018-12-02 22:23:45,612 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 22:23:45,612 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2018-12-02 22:23:45,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-02 22:23:45,613 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:23:45,613 INFO L402 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] [2018-12-02 22:23:45,613 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-02 22:23:45,613 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:23:45,613 INFO L82 PathProgramCache]: Analyzing trace with hash -151916587, now seen corresponding path program 1 times [2018-12-02 22:23:45,613 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 22:23:45,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:23:45,615 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:23:45,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:23:45,615 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 22:23:45,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 22:23:45,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 22:23:45,655 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 22:23:45,662 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-12-02 22:23:45,667 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 10 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2018-12-02 22:23:45,667 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 9 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2018-12-02 22:23:45,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 10:23:45 BoogieIcfgContainer [2018-12-02 22:23:45,672 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 22:23:45,672 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 22:23:45,672 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 22:23:45,672 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 22:23:45,672 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:23:45" (3/4) ... [2018-12-02 22:23:45,675 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-02 22:23:45,675 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 22:23:45,675 INFO L168 Benchmark]: Toolchain (without parser) took 814.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 951.3 MB in the beginning and 1.0 GB in the end (delta: -91.4 MB). Peak memory consumption was 41.2 MB. Max. memory is 11.5 GB. [2018-12-02 22:23:45,676 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 22:23:45,676 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -150.0 MB). Peak memory consumption was 30.3 MB. Max. memory is 11.5 GB. [2018-12-02 22:23:45,677 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.39 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 22:23:45,677 INFO L168 Benchmark]: Boogie Preprocessor took 13.81 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 22:23:45,677 INFO L168 Benchmark]: RCFGBuilder took 148.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. [2018-12-02 22:23:45,677 INFO L168 Benchmark]: TraceAbstraction took 297.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 39.5 MB). Peak memory consumption was 39.5 MB. Max. memory is 11.5 GB. [2018-12-02 22:23:45,678 INFO L168 Benchmark]: Witness Printer took 2.72 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 22:23:45,679 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 327.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -150.0 MB). Peak memory consumption was 30.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 22.39 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.81 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 148.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 297.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 39.5 MB). Peak memory consumption was 39.5 MB. Max. memory is 11.5 GB. * Witness Printer took 2.72 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 10 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 9 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1453]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1453. Possible FailurePath: [L1135] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [\old(ldv_global_msg_list)=null, \old(ldv_global_msg_list)=null, ldv_global_msg_list={13:0}] [L1454] CALL entry_point() VAL [ldv_global_msg_list={13:0}] [L1448] int condition = __VERIFIER_nondet_int(); [L1449] CALL, EXPR alloc_16(condition) VAL [\old(condition)=1, ldv_global_msg_list={13:0}] [L1440] COND TRUE \read(condition) VAL [\old(condition)=1, condition=1, ldv_global_msg_list={13:0}] [L1441] CALL, EXPR ldv_malloc(sizeof(struct A16)) VAL [\old(size)=4, ldv_global_msg_list={13:0}] [L1073] COND TRUE __VERIFIER_nondet_int() [L1074] return malloc(size); VAL [\old(size)=4, \result={12:0}, ldv_global_msg_list={13:0}, malloc(size)={12:0}, size=4] [L1441] RET, EXPR ldv_malloc(sizeof(struct A16)) VAL [\old(condition)=1, condition=1, ldv_global_msg_list={13:0}, ldv_malloc(sizeof(struct A16))={12:0}] [L1441] struct A16 *p = (struct A16 *)ldv_malloc(sizeof(struct A16)); [L1442] return p; VAL [\old(condition)=1, \result={12:0}, condition=1, ldv_global_msg_list={13:0}, p={12:0}] [L1449] RET, EXPR alloc_16(condition) VAL [alloc_16(condition)={12:0}, condition=1, ldv_global_msg_list={13:0}] [L1449] struct A16 *p = alloc_16(condition); [L1454] RET entry_point() VAL [ldv_global_msg_list={13:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 26 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 24 SDtfs, 6 SDslu, 8 SDs, 0 SdLazy, 13 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 5 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, 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, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 555 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 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-02 22:23:47,015 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 22:23:47,016 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 22:23:47,023 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 22:23:47,023 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 22:23:47,023 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 22:23:47,024 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 22:23:47,025 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 22:23:47,026 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 22:23:47,026 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 22:23:47,027 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 22:23:47,027 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 22:23:47,027 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 22:23:47,028 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 22:23:47,028 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 22:23:47,029 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 22:23:47,029 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 22:23:47,030 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 22:23:47,031 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 22:23:47,032 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 22:23:47,032 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 22:23:47,033 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 22:23:47,034 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 22:23:47,034 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 22:23:47,034 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 22:23:47,035 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 22:23:47,035 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 22:23:47,036 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 22:23:47,036 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 22:23:47,037 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 22:23:47,037 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 22:23:47,037 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 22:23:47,038 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 22:23:47,038 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 22:23:47,038 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 22:23:47,039 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 22:23:47,039 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_29c2a8a2-9b25-472e-a7ac-40364474164a/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2018-12-02 22:23:47,050 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 22:23:47,050 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 22:23:47,051 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 22:23:47,051 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 22:23:47,051 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 22:23:47,051 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 22:23:47,052 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 22:23:47,052 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 22:23:47,052 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 22:23:47,052 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 22:23:47,053 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 22:23:47,053 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 22:23:47,053 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 22:23:47,053 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 22:23:47,053 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 22:23:47,053 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 22:23:47,053 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 22:23:47,054 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 22:23:47,054 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-02 22:23:47,054 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-02 22:23:47,054 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-02 22:23:47,054 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 22:23:47,054 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-02 22:23:47,054 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-02 22:23:47,055 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 22:23:47,055 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 22:23:47,055 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 22:23:47,055 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 22:23:47,055 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 22:23:47,055 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 22:23:47,056 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 22:23:47,056 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 22:23:47,056 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 22:23:47,056 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-02 22:23:47,056 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 22:23:47,056 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-02 22:23:47,056 INFO L133 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_29c2a8a2-9b25-472e-a7ac-40364474164a/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6b92b9f848445aceba527387fce4d09a311e956 [2018-12-02 22:23:47,080 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 22:23:47,087 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 22:23:47,089 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 22:23:47,090 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 22:23:47,090 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 22:23:47,090 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_29c2a8a2-9b25-472e-a7ac-40364474164a/bin-2019/utaipan/../../sv-benchmarks/c/ldv-memsafety/memleaks_test16_2_false-valid-memtrack_true-termination.i [2018-12-02 22:23:47,126 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_29c2a8a2-9b25-472e-a7ac-40364474164a/bin-2019/utaipan/data/4c123ed92/1d11b345c3e84d3ab6ac21b0cb9556a6/FLAGf8723d432 [2018-12-02 22:23:47,573 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 22:23:47,573 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_29c2a8a2-9b25-472e-a7ac-40364474164a/sv-benchmarks/c/ldv-memsafety/memleaks_test16_2_false-valid-memtrack_true-termination.i [2018-12-02 22:23:47,581 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_29c2a8a2-9b25-472e-a7ac-40364474164a/bin-2019/utaipan/data/4c123ed92/1d11b345c3e84d3ab6ac21b0cb9556a6/FLAGf8723d432 [2018-12-02 22:23:47,590 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_29c2a8a2-9b25-472e-a7ac-40364474164a/bin-2019/utaipan/data/4c123ed92/1d11b345c3e84d3ab6ac21b0cb9556a6 [2018-12-02 22:23:47,592 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 22:23:47,592 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 22:23:47,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 22:23:47,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 22:23:47,595 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 22:23:47,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:23:47" (1/1) ... [2018-12-02 22:23:47,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d255691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:47, skipping insertion in model container [2018-12-02 22:23:47,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:23:47" (1/1) ... [2018-12-02 22:23:47,602 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 22:23:47,625 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 22:23:47,814 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 22:23:47,826 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 22:23:47,891 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 22:23:47,924 INFO L195 MainTranslator]: Completed translation [2018-12-02 22:23:47,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:47 WrapperNode [2018-12-02 22:23:47,925 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 22:23:47,925 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 22:23:47,925 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 22:23:47,925 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 22:23:47,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:47" (1/1) ... [2018-12-02 22:23:47,942 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:47" (1/1) ... [2018-12-02 22:23:47,947 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 22:23:47,947 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 22:23:47,947 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 22:23:47,947 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 22:23:47,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:47" (1/1) ... [2018-12-02 22:23:47,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:47" (1/1) ... [2018-12-02 22:23:47,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:47" (1/1) ... [2018-12-02 22:23:47,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:47" (1/1) ... [2018-12-02 22:23:47,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:47" (1/1) ... [2018-12-02 22:23:47,959 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:47" (1/1) ... [2018-12-02 22:23:47,960 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:47" (1/1) ... [2018-12-02 22:23:47,961 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 22:23:47,962 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 22:23:47,962 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 22:23:47,962 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 22:23:47,962 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_29c2a8a2-9b25-472e-a7ac-40364474164a/bin-2019/utaipan/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 [2018-12-02 22:23:47,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 22:23:47,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-12-02 22:23:47,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-12-02 22:23:47,992 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_16 [2018-12-02 22:23:47,992 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_16 [2018-12-02 22:23:47,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 22:23:47,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 22:23:47,993 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 22:23:47,993 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 22:23:47,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-12-02 22:23:47,993 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2018-12-02 22:23:47,993 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2018-12-02 22:23:47,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 22:23:47,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 22:23:48,106 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 22:23:48,106 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-02 22:23:48,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:23:48 BoogieIcfgContainer [2018-12-02 22:23:48,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 22:23:48,107 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 22:23:48,107 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 22:23:48,109 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 22:23:48,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:23:47" (1/3) ... [2018-12-02 22:23:48,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@177ac861 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:23:48, skipping insertion in model container [2018-12-02 22:23:48,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:47" (2/3) ... [2018-12-02 22:23:48,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@177ac861 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:23:48, skipping insertion in model container [2018-12-02 22:23:48,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:23:48" (3/3) ... [2018-12-02 22:23:48,111 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test16_2_false-valid-memtrack_true-termination.i [2018-12-02 22:23:48,116 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 22:23:48,120 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 22:23:48,129 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 22:23:48,142 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 22:23:48,142 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 22:23:48,143 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-02 22:23:48,143 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 22:23:48,143 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 22:23:48,143 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 22:23:48,143 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 22:23:48,143 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 22:23:48,143 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 22:23:48,150 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2018-12-02 22:23:48,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-02 22:23:48,155 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:23:48,156 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 22:23:48,157 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-02 22:23:48,160 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:23:48,160 INFO L82 PathProgramCache]: Analyzing trace with hash -1146427586, now seen corresponding path program 1 times [2018-12-02 22:23:48,163 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-02 22:23:48,163 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_29c2a8a2-9b25-472e-a7ac-40364474164a/bin-2019/utaipan/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-02 22:23:48,181 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:23:48,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:23:48,221 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 22:23:48,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 22:23:48,247 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 22:23:48,249 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 22:23:48,250 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 22:23:48,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 22:23:48,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 22:23:48,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 22:23:48,261 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 3 states. [2018-12-02 22:23:48,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:23:48,309 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2018-12-02 22:23:48,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 22:23:48,310 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-12-02 22:23:48,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:23:48,315 INFO L225 Difference]: With dead ends: 35 [2018-12-02 22:23:48,316 INFO L226 Difference]: Without dead ends: 23 [2018-12-02 22:23:48,317 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 22:23:48,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-12-02 22:23:48,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-12-02 22:23:48,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-12-02 22:23:48,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2018-12-02 22:23:48,337 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 16 [2018-12-02 22:23:48,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:23:48,337 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2018-12-02 22:23:48,338 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 22:23:48,338 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2018-12-02 22:23:48,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-02 22:23:48,338 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:23:48,338 INFO L402 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] [2018-12-02 22:23:48,338 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-02 22:23:48,339 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:23:48,339 INFO L82 PathProgramCache]: Analyzing trace with hash -151916587, now seen corresponding path program 1 times [2018-12-02 22:23:48,339 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-02 22:23:48,339 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_29c2a8a2-9b25-472e-a7ac-40364474164a/bin-2019/utaipan/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-02 22:23:48,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:23:48,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 22:23:48,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 22:23:48,473 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 22:23:48,483 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-12-02 22:23:48,489 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2018-12-02 22:23:48,489 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2018-12-02 22:23:48,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 10:23:48 BoogieIcfgContainer [2018-12-02 22:23:48,495 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 22:23:48,496 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 22:23:48,496 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 22:23:48,496 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 22:23:48,496 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:23:48" (3/4) ... [2018-12-02 22:23:48,499 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-02 22:23:48,499 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 22:23:48,500 INFO L168 Benchmark]: Toolchain (without parser) took 908.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 939.3 MB in the beginning and 1.0 GB in the end (delta: -92.6 MB). Peak memory consumption was 50.1 MB. Max. memory is 11.5 GB. [2018-12-02 22:23:48,501 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 22:23:48,501 INFO L168 Benchmark]: CACSL2BoogieTranslator took 332.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -169.9 MB). Peak memory consumption was 37.7 MB. Max. memory is 11.5 GB. [2018-12-02 22:23:48,502 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.63 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 22:23:48,502 INFO L168 Benchmark]: Boogie Preprocessor took 14.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 22:23:48,502 INFO L168 Benchmark]: RCFGBuilder took 145.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2018-12-02 22:23:48,503 INFO L168 Benchmark]: TraceAbstraction took 388.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 59.3 MB). Peak memory consumption was 59.3 MB. Max. memory is 11.5 GB. [2018-12-02 22:23:48,503 INFO L168 Benchmark]: Witness Printer took 3.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 22:23:48,505 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 332.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -169.9 MB). Peak memory consumption was 37.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.63 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 145.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 388.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 59.3 MB). Peak memory consumption was 59.3 MB. Max. memory is 11.5 GB. * Witness Printer took 3.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1453]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1453. Possible FailurePath: [L1135] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [\old(ldv_global_msg_list)=null, \old(ldv_global_msg_list)=null, ldv_global_msg_list={-2146401247:0}] [L1454] CALL entry_point() VAL [ldv_global_msg_list={-2146401247:0}] [L1448] int condition = __VERIFIER_nondet_int(); [L1449] CALL, EXPR alloc_16(condition) VAL [\old(condition)=1, ldv_global_msg_list={-2146401247:0}] [L1440] COND TRUE \read(condition) VAL [\old(condition)=1, condition=1, ldv_global_msg_list={-2146401247:0}] [L1441] CALL, EXPR ldv_malloc(sizeof(struct A16)) VAL [\old(size)=4, ldv_global_msg_list={-2146401247:0}] [L1073] COND TRUE __VERIFIER_nondet_int() [L1074] return malloc(size); VAL [\old(size)=4, \result={1082401:0}, ldv_global_msg_list={-2146401247:0}, malloc(size)={1082401:0}, size=4] [L1441] RET, EXPR ldv_malloc(sizeof(struct A16)) VAL [\old(condition)=1, condition=1, ldv_global_msg_list={-2146401247:0}, ldv_malloc(sizeof(struct A16))={1082401:0}] [L1441] struct A16 *p = (struct A16 *)ldv_malloc(sizeof(struct A16)); [L1442] return p; VAL [\old(condition)=1, \result={1082401:0}, condition=1, ldv_global_msg_list={-2146401247:0}, p={1082401:0}] [L1449] RET, EXPR alloc_16(condition) VAL [alloc_16(condition)={1082401:0}, condition=1, ldv_global_msg_list={-2146401247:0}] [L1449] struct A16 *p = alloc_16(condition); [L1454] RET entry_point() VAL [ldv_global_msg_list={-2146401247:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 26 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 24 SDtfs, 6 SDslu, 8 SDs, 0 SdLazy, 13 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 14 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, 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, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 555 SizeOfPredicates, 0 NumberOfNonLiveVariables, 56 ConjunctsInSsa, 6 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 Received shutdown request...