./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test3_true-valid-memsafety_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_719f3bfc-67fe-4ed9-a49c-a8570f254fe0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_719f3bfc-67fe-4ed9-a49c-a8570f254fe0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_719f3bfc-67fe-4ed9-a49c-a8570f254fe0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_719f3bfc-67fe-4ed9-a49c-a8570f254fe0/bin-2019/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test3_true-valid-memsafety_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_719f3bfc-67fe-4ed9-a49c-a8570f254fe0/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_719f3bfc-67fe-4ed9-a49c-a8570f254fe0/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 71d9e9cdb96aacb900c7761144c7261ca672a959 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 15:57:40,323 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 15:57:40,324 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 15:57:40,330 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 15:57:40,330 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 15:57:40,330 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 15:57:40,331 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 15:57:40,332 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 15:57:40,333 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 15:57:40,333 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 15:57:40,333 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 15:57:40,334 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 15:57:40,334 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 15:57:40,334 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 15:57:40,335 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 15:57:40,335 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 15:57:40,336 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 15:57:40,336 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 15:57:40,337 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 15:57:40,338 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 15:57:40,338 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 15:57:40,339 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 15:57:40,340 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 15:57:40,340 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 15:57:40,340 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 15:57:40,341 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 15:57:40,341 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 15:57:40,342 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 15:57:40,342 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 15:57:40,342 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 15:57:40,343 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 15:57:40,343 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 15:57:40,343 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 15:57:40,343 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 15:57:40,344 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 15:57:40,344 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 15:57:40,344 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_719f3bfc-67fe-4ed9-a49c-a8570f254fe0/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2018-12-09 15:57:40,351 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 15:57:40,352 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 15:57:40,352 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 15:57:40,352 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 15:57:40,352 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 15:57:40,352 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 15:57:40,352 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 15:57:40,353 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 15:57:40,353 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 15:57:40,353 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 15:57:40,353 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 15:57:40,353 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 15:57:40,353 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 15:57:40,353 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 15:57:40,353 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 15:57:40,354 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 15:57:40,354 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 15:57:40,354 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 15:57:40,354 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 15:57:40,354 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 15:57:40,354 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 15:57:40,354 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-09 15:57:40,354 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-09 15:57:40,354 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-09 15:57:40,354 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 15:57:40,354 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 15:57:40,355 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 15:57:40,355 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 15:57:40,355 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 15:57:40,355 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 15:57:40,355 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 15:57:40,355 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 15:57:40,355 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 15:57:40,355 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 15:57:40,355 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 15:57:40,355 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 15:57:40,355 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_719f3bfc-67fe-4ed9-a49c-a8570f254fe0/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 -> 71d9e9cdb96aacb900c7761144c7261ca672a959 [2018-12-09 15:57:40,373 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 15:57:40,382 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 15:57:40,384 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 15:57:40,386 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 15:57:40,386 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 15:57:40,386 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_719f3bfc-67fe-4ed9-a49c-a8570f254fe0/bin-2019/utaipan/../../sv-benchmarks/c/ldv-memsafety/memleaks_test3_true-valid-memsafety_true-termination.i [2018-12-09 15:57:40,431 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_719f3bfc-67fe-4ed9-a49c-a8570f254fe0/bin-2019/utaipan/data/4b075730b/7c0095ad5da84ea1a03384e1d1c413fb/FLAG6c474a19a [2018-12-09 15:57:40,876 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 15:57:40,877 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_719f3bfc-67fe-4ed9-a49c-a8570f254fe0/sv-benchmarks/c/ldv-memsafety/memleaks_test3_true-valid-memsafety_true-termination.i [2018-12-09 15:57:40,884 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_719f3bfc-67fe-4ed9-a49c-a8570f254fe0/bin-2019/utaipan/data/4b075730b/7c0095ad5da84ea1a03384e1d1c413fb/FLAG6c474a19a [2018-12-09 15:57:40,892 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_719f3bfc-67fe-4ed9-a49c-a8570f254fe0/bin-2019/utaipan/data/4b075730b/7c0095ad5da84ea1a03384e1d1c413fb [2018-12-09 15:57:40,894 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 15:57:40,895 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 15:57:40,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 15:57:40,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 15:57:40,897 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 15:57:40,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:57:40" (1/1) ... [2018-12-09 15:57:40,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f5fc0d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:57:40, skipping insertion in model container [2018-12-09 15:57:40,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:57:40" (1/1) ... [2018-12-09 15:57:40,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 15:57:40,930 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 15:57:41,149 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 15:57:41,157 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 15:57:41,191 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 15:57:41,222 INFO L195 MainTranslator]: Completed translation [2018-12-09 15:57:41,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:57:41 WrapperNode [2018-12-09 15:57:41,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 15:57:41,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 15:57:41,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 15:57:41,223 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 15:57:41,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:57:41" (1/1) ... [2018-12-09 15:57:41,238 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:57:41" (1/1) ... [2018-12-09 15:57:41,243 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 15:57:41,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 15:57:41,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 15:57:41,244 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 15:57:41,249 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:57:41" (1/1) ... [2018-12-09 15:57:41,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:57:41" (1/1) ... [2018-12-09 15:57:41,251 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:57:41" (1/1) ... [2018-12-09 15:57:41,251 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:57:41" (1/1) ... [2018-12-09 15:57:41,254 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:57:41" (1/1) ... [2018-12-09 15:57:41,255 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:57:41" (1/1) ... [2018-12-09 15:57:41,256 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:57:41" (1/1) ... [2018-12-09 15:57:41,257 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 15:57:41,257 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 15:57:41,257 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 15:57:41,257 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 15:57:41,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:57:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_719f3bfc-67fe-4ed9-a49c-a8570f254fe0/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 [2018-12-09 15:57:41,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 15:57:41,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-12-09 15:57:41,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-12-09 15:57:41,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 15:57:41,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 15:57:41,289 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 15:57:41,289 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 15:57:41,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 15:57:41,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-12-09 15:57:41,289 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2018-12-09 15:57:41,289 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2018-12-09 15:57:41,289 INFO L130 BoogieDeclarations]: Found specification of procedure h_safe [2018-12-09 15:57:41,289 INFO L138 BoogieDeclarations]: Found implementation of procedure h_safe [2018-12-09 15:57:41,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 15:57:41,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 15:57:41,408 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 15:57:41,408 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 15:57:41,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:57:41 BoogieIcfgContainer [2018-12-09 15:57:41,409 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 15:57:41,409 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 15:57:41,409 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 15:57:41,411 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 15:57:41,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:57:40" (1/3) ... [2018-12-09 15:57:41,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e46f36f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:57:41, skipping insertion in model container [2018-12-09 15:57:41,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:57:41" (2/3) ... [2018-12-09 15:57:41,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e46f36f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:57:41, skipping insertion in model container [2018-12-09 15:57:41,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:57:41" (3/3) ... [2018-12-09 15:57:41,413 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test3_true-valid-memsafety_true-termination.i [2018-12-09 15:57:41,419 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 15:57:41,423 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-12-09 15:57:41,432 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-12-09 15:57:41,450 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 15:57:41,450 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-09 15:57:41,450 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 15:57:41,450 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 15:57:41,450 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 15:57:41,451 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 15:57:41,451 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 15:57:41,451 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 15:57:41,460 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-12-09 15:57:41,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 15:57:41,465 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:57:41,466 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:57:41,467 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-09 15:57:41,470 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:57:41,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1224387697, now seen corresponding path program 1 times [2018-12-09 15:57:41,472 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:57:41,507 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:57:41,508 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:57:41,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:57:41,508 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:57:41,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:57:41,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:57:41,621 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:57:41,622 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 15:57:41,622 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:57:41,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 15:57:41,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 15:57:41,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 15:57:41,634 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 7 states. [2018-12-09 15:57:41,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:57:41,663 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2018-12-09 15:57:41,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 15:57:41,665 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2018-12-09 15:57:41,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:57:41,673 INFO L225 Difference]: With dead ends: 27 [2018-12-09 15:57:41,673 INFO L226 Difference]: Without dead ends: 24 [2018-12-09 15:57:41,674 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 15:57:41,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-12-09 15:57:41,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-12-09 15:57:41,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-12-09 15:57:41,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2018-12-09 15:57:41,694 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 18 [2018-12-09 15:57:41,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:57:41,695 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2018-12-09 15:57:41,695 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 15:57:41,695 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2018-12-09 15:57:41,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 15:57:41,695 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:57:41,695 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:57:41,695 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-09 15:57:41,696 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:57:41,696 INFO L82 PathProgramCache]: Analyzing trace with hash -698687002, now seen corresponding path program 1 times [2018-12-09 15:57:41,696 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:57:41,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:57:41,697 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:57:41,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:57:41,697 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:57:41,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:57:41,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:57:41,760 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:57:41,760 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 15:57:41,761 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:57:41,762 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 15:57:41,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 15:57:41,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 15:57:41,762 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 7 states. [2018-12-09 15:57:41,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:57:41,808 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2018-12-09 15:57:41,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 15:57:41,808 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-12-09 15:57:41,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:57:41,810 INFO L225 Difference]: With dead ends: 35 [2018-12-09 15:57:41,810 INFO L226 Difference]: Without dead ends: 35 [2018-12-09 15:57:41,810 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 15:57:41,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-12-09 15:57:41,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2018-12-09 15:57:41,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-12-09 15:57:41,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2018-12-09 15:57:41,814 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 19 [2018-12-09 15:57:41,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:57:41,814 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2018-12-09 15:57:41,814 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 15:57:41,814 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2018-12-09 15:57:41,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 15:57:41,815 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:57:41,815 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:57:41,815 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-09 15:57:41,815 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:57:41,815 INFO L82 PathProgramCache]: Analyzing trace with hash -895200507, now seen corresponding path program 1 times [2018-12-09 15:57:41,815 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:57:41,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:57:41,816 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:57:41,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:57:41,817 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:57:41,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:57:41,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:57:41,857 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:57:41,857 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 15:57:41,857 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:57:41,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 15:57:41,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 15:57:41,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 15:57:41,858 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand 7 states. [2018-12-09 15:57:41,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:57:41,880 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2018-12-09 15:57:41,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 15:57:41,881 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-12-09 15:57:41,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:57:41,882 INFO L225 Difference]: With dead ends: 34 [2018-12-09 15:57:41,882 INFO L226 Difference]: Without dead ends: 34 [2018-12-09 15:57:41,882 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 15:57:41,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-12-09 15:57:41,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 23. [2018-12-09 15:57:41,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-12-09 15:57:41,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2018-12-09 15:57:41,884 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 19 [2018-12-09 15:57:41,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:57:41,884 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2018-12-09 15:57:41,885 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 15:57:41,885 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2018-12-09 15:57:41,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-09 15:57:41,885 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:57:41,885 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] [2018-12-09 15:57:41,885 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-09 15:57:41,886 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:57:41,886 INFO L82 PathProgramCache]: Analyzing trace with hash -184275716, now seen corresponding path program 1 times [2018-12-09 15:57:41,886 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:57:41,887 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:57:41,887 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:57:41,887 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:57:41,887 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:57:41,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:57:41,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:57:41,934 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:57:41,934 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 15:57:41,934 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:57:41,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 15:57:41,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 15:57:41,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 15:57:41,935 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 7 states. [2018-12-09 15:57:41,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:57:41,948 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2018-12-09 15:57:41,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 15:57:41,948 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-12-09 15:57:41,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:57:41,949 INFO L225 Difference]: With dead ends: 34 [2018-12-09 15:57:41,949 INFO L226 Difference]: Without dead ends: 34 [2018-12-09 15:57:41,949 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 15:57:41,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-12-09 15:57:41,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 30. [2018-12-09 15:57:41,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-12-09 15:57:41,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2018-12-09 15:57:41,952 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 20 [2018-12-09 15:57:41,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:57:41,952 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2018-12-09 15:57:41,952 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 15:57:41,952 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2018-12-09 15:57:41,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-09 15:57:41,952 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:57:41,952 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] [2018-12-09 15:57:41,952 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-09 15:57:41,953 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:57:41,953 INFO L82 PathProgramCache]: Analyzing trace with hash -1981227075, now seen corresponding path program 1 times [2018-12-09 15:57:41,953 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:57:41,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:57:41,954 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:57:41,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:57:41,954 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:57:41,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:57:41,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:57:41,969 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:57:41,969 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 15:57:41,969 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:57:41,969 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 15:57:41,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 15:57:41,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 15:57:41,970 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 3 states. [2018-12-09 15:57:41,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:57:41,989 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2018-12-09 15:57:41,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 15:57:41,989 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2018-12-09 15:57:41,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:57:41,989 INFO L225 Difference]: With dead ends: 35 [2018-12-09 15:57:41,989 INFO L226 Difference]: Without dead ends: 32 [2018-12-09 15:57:41,990 INFO L631 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 [2018-12-09 15:57:41,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-12-09 15:57:41,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2018-12-09 15:57:41,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-12-09 15:57:41,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2018-12-09 15:57:41,991 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 20 [2018-12-09 15:57:41,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:57:41,992 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2018-12-09 15:57:41,992 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 15:57:41,992 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2018-12-09 15:57:41,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 15:57:41,992 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:57:41,992 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] [2018-12-09 15:57:41,992 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-09 15:57:41,992 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:57:41,992 INFO L82 PathProgramCache]: Analyzing trace with hash -1172901408, now seen corresponding path program 1 times [2018-12-09 15:57:41,993 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:57:41,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:57:41,993 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:57:41,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:57:41,993 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:57:42,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:57:42,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:57:42,090 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:57:42,090 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 15:57:42,090 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:57:42,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 15:57:42,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 15:57:42,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-09 15:57:42,091 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 8 states. [2018-12-09 15:57:42,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:57:42,176 INFO L93 Difference]: Finished difference Result 35 states and 34 transitions. [2018-12-09 15:57:42,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 15:57:42,177 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2018-12-09 15:57:42,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:57:42,177 INFO L225 Difference]: With dead ends: 35 [2018-12-09 15:57:42,177 INFO L226 Difference]: Without dead ends: 23 [2018-12-09 15:57:42,178 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-12-09 15:57:42,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-12-09 15:57:42,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-12-09 15:57:42,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-12-09 15:57:42,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2018-12-09 15:57:42,179 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 22 [2018-12-09 15:57:42,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:57:42,180 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2018-12-09 15:57:42,180 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 15:57:42,180 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2018-12-09 15:57:42,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 15:57:42,180 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:57:42,180 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] [2018-12-09 15:57:42,180 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-09 15:57:42,180 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:57:42,181 INFO L82 PathProgramCache]: Analyzing trace with hash -1466304415, now seen corresponding path program 1 times [2018-12-09 15:57:42,181 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:57:42,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:57:42,182 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:57:42,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:57:42,182 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:57:42,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:57:42,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:57:42,221 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:57:42,221 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 15:57:42,221 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:57:42,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 15:57:42,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 15:57:42,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 15:57:42,222 INFO L87 Difference]: Start difference. First operand 23 states and 22 transitions. Second operand 7 states. [2018-12-09 15:57:42,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:57:42,227 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2018-12-09 15:57:42,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 15:57:42,228 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2018-12-09 15:57:42,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:57:42,228 INFO L225 Difference]: With dead ends: 17 [2018-12-09 15:57:42,228 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 15:57:42,228 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 15:57:42,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 15:57:42,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 15:57:42,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 15:57:42,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 15:57:42,229 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2018-12-09 15:57:42,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:57:42,229 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 15:57:42,229 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 15:57:42,229 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 15:57:42,229 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 15:57:42,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:57:42 BoogieIcfgContainer [2018-12-09 15:57:42,232 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 15:57:42,232 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 15:57:42,232 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 15:57:42,232 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 15:57:42,233 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:57:41" (3/4) ... [2018-12-09 15:57:42,235 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 15:57:42,239 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2018-12-09 15:57:42,239 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 15:57:42,240 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 15:57:42,240 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure h_safe [2018-12-09 15:57:42,240 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure entry_point [2018-12-09 15:57:42,242 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2018-12-09 15:57:42,242 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-09 15:57:42,243 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 15:57:42,268 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_719f3bfc-67fe-4ed9-a49c-a8570f254fe0/bin-2019/utaipan/witness.graphml [2018-12-09 15:57:42,268 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 15:57:42,269 INFO L168 Benchmark]: Toolchain (without parser) took 1374.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 948.1 MB in the beginning and 939.2 MB in the end (delta: 8.9 MB). Peak memory consumption was 128.4 MB. Max. memory is 11.5 GB. [2018-12-09 15:57:42,269 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 15:57:42,270 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.21 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -144.4 MB). Peak memory consumption was 30.8 MB. Max. memory is 11.5 GB. [2018-12-09 15:57:42,270 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.46 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 15:57:42,270 INFO L168 Benchmark]: Boogie Preprocessor took 13.53 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 15:57:42,270 INFO L168 Benchmark]: RCFGBuilder took 151.63 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2018-12-09 15:57:42,271 INFO L168 Benchmark]: TraceAbstraction took 822.95 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 944.5 MB in the end (delta: 128.2 MB). Peak memory consumption was 128.2 MB. Max. memory is 11.5 GB. [2018-12-09 15:57:42,271 INFO L168 Benchmark]: Witness Printer took 35.84 ms. Allocated memory is still 1.1 GB. Free memory was 944.5 MB in the beginning and 939.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 15:57:42,272 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 327.21 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -144.4 MB). Peak memory consumption was 30.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.46 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.53 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 151.63 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 822.95 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 944.5 MB in the end (delta: 128.2 MB). Peak memory consumption was 128.2 MB. Max. memory is 11.5 GB. * Witness Printer took 35.84 ms. Allocated memory is still 1.1 GB. Free memory was 944.5 MB in the beginning and 939.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1442]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1439]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 1439]: free always succeeds For all program executions holds that free always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 28 locations, 3 error locations. SAFE Result, 0.7s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 155 SDtfs, 23 SDslu, 550 SDs, 0 SdLazy, 281 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=2, 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, 7 MinimizatonAttempts, 26 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 140 NumberOfCodeBlocks, 140 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 133 ConstructedInterpolants, 0 QuantifiedInterpolants, 9122 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...