./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test9_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_546b9857-35aa-4d2e-9f11-11e5d556241b/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_546b9857-35aa-4d2e-9f11-11e5d556241b/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_546b9857-35aa-4d2e-9f11-11e5d556241b/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_546b9857-35aa-4d2e-9f11-11e5d556241b/bin-2019/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test9_true-valid-memsafety_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_546b9857-35aa-4d2e-9f11-11e5d556241b/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_546b9857-35aa-4d2e-9f11-11e5d556241b/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 5c3094e52f86de782ce8f4a282bf2e728d1d6267 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 20:57:33,850 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 20:57:33,851 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 20:57:33,856 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 20:57:33,857 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 20:57:33,857 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 20:57:33,858 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 20:57:33,858 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 20:57:33,859 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 20:57:33,860 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 20:57:33,860 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 20:57:33,860 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 20:57:33,861 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 20:57:33,861 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 20:57:33,862 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 20:57:33,862 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 20:57:33,862 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 20:57:33,863 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 20:57:33,864 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 20:57:33,865 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 20:57:33,865 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 20:57:33,866 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 20:57:33,867 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 20:57:33,867 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 20:57:33,867 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 20:57:33,868 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 20:57:33,868 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 20:57:33,869 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 20:57:33,869 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 20:57:33,870 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 20:57:33,870 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 20:57:33,870 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 20:57:33,870 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 20:57:33,870 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 20:57:33,871 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 20:57:33,871 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 20:57:33,871 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_546b9857-35aa-4d2e-9f11-11e5d556241b/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2018-12-08 20:57:33,878 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 20:57:33,879 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 20:57:33,879 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 20:57:33,879 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 20:57:33,879 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 20:57:33,879 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 20:57:33,879 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 20:57:33,879 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 20:57:33,880 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 20:57:33,880 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 20:57:33,880 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 20:57:33,880 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 20:57:33,880 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 20:57:33,880 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 20:57:33,880 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 20:57:33,880 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 20:57:33,881 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 20:57:33,881 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 20:57:33,881 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 20:57:33,881 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 20:57:33,881 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 20:57:33,881 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-08 20:57:33,881 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-08 20:57:33,881 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-08 20:57:33,881 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 20:57:33,881 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 20:57:33,881 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 20:57:33,882 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 20:57:33,882 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 20:57:33,882 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 20:57:33,882 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 20:57:33,882 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 20:57:33,882 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 20:57:33,882 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 20:57:33,882 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 20:57:33,882 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 20:57:33,882 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_546b9857-35aa-4d2e-9f11-11e5d556241b/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 -> 5c3094e52f86de782ce8f4a282bf2e728d1d6267 [2018-12-08 20:57:33,900 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 20:57:33,910 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 20:57:33,912 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 20:57:33,913 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 20:57:33,914 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 20:57:33,914 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_546b9857-35aa-4d2e-9f11-11e5d556241b/bin-2019/utaipan/../../sv-benchmarks/c/ldv-memsafety/memleaks_test9_true-valid-memsafety_true-termination.i [2018-12-08 20:57:33,952 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_546b9857-35aa-4d2e-9f11-11e5d556241b/bin-2019/utaipan/data/1bf5041b3/29fa7dee74af4f71b35cb44d9e487dba/FLAG19c4093c6 [2018-12-08 20:57:34,475 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 20:57:34,475 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_546b9857-35aa-4d2e-9f11-11e5d556241b/sv-benchmarks/c/ldv-memsafety/memleaks_test9_true-valid-memsafety_true-termination.i [2018-12-08 20:57:34,485 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_546b9857-35aa-4d2e-9f11-11e5d556241b/bin-2019/utaipan/data/1bf5041b3/29fa7dee74af4f71b35cb44d9e487dba/FLAG19c4093c6 [2018-12-08 20:57:34,986 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_546b9857-35aa-4d2e-9f11-11e5d556241b/bin-2019/utaipan/data/1bf5041b3/29fa7dee74af4f71b35cb44d9e487dba [2018-12-08 20:57:34,988 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 20:57:34,989 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 20:57:34,990 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 20:57:34,990 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 20:57:34,992 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 20:57:34,993 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 08:57:34" (1/1) ... [2018-12-08 20:57:34,995 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7166975b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:57:34, skipping insertion in model container [2018-12-08 20:57:34,995 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 08:57:34" (1/1) ... [2018-12-08 20:57:35,002 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 20:57:35,030 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 20:57:35,260 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 20:57:35,269 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 20:57:35,310 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 20:57:35,361 INFO L195 MainTranslator]: Completed translation [2018-12-08 20:57:35,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:57:35 WrapperNode [2018-12-08 20:57:35,361 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 20:57:35,362 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 20:57:35,362 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 20:57:35,362 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 20:57:35,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:57:35" (1/1) ... [2018-12-08 20:57:35,384 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:57:35" (1/1) ... [2018-12-08 20:57:35,389 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 20:57:35,389 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 20:57:35,389 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 20:57:35,389 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 20:57:35,396 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:57:35" (1/1) ... [2018-12-08 20:57:35,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:57:35" (1/1) ... [2018-12-08 20:57:35,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:57:35" (1/1) ... [2018-12-08 20:57:35,398 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:57:35" (1/1) ... [2018-12-08 20:57:35,401 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:57:35" (1/1) ... [2018-12-08 20:57:35,402 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:57:35" (1/1) ... [2018-12-08 20:57:35,403 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:57:35" (1/1) ... [2018-12-08 20:57:35,404 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 20:57:35,404 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 20:57:35,404 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 20:57:35,404 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 20:57:35,405 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:57:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_546b9857-35aa-4d2e-9f11-11e5d556241b/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 [2018-12-08 20:57:35,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 20:57:35,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-12-08 20:57:35,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-12-08 20:57:35,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 20:57:35,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 20:57:35,438 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 20:57:35,438 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 20:57:35,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 20:57:35,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-12-08 20:57:35,438 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2018-12-08 20:57:35,438 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2018-12-08 20:57:35,438 INFO L130 BoogieDeclarations]: Found specification of procedure probe_9 [2018-12-08 20:57:35,438 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_9 [2018-12-08 20:57:35,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 20:57:35,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 20:57:35,439 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect_9 [2018-12-08 20:57:35,439 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect_9 [2018-12-08 20:57:35,568 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 20:57:35,568 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-08 20:57:35,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:57:35 BoogieIcfgContainer [2018-12-08 20:57:35,568 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 20:57:35,569 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 20:57:35,569 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 20:57:35,572 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 20:57:35,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 08:57:34" (1/3) ... [2018-12-08 20:57:35,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5760d858 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 08:57:35, skipping insertion in model container [2018-12-08 20:57:35,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:57:35" (2/3) ... [2018-12-08 20:57:35,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5760d858 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 08:57:35, skipping insertion in model container [2018-12-08 20:57:35,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:57:35" (3/3) ... [2018-12-08 20:57:35,575 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test9_true-valid-memsafety_true-termination.i [2018-12-08 20:57:35,583 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 20:57:35,589 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-12-08 20:57:35,603 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-12-08 20:57:35,624 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 20:57:35,624 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-08 20:57:35,624 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 20:57:35,624 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 20:57:35,624 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 20:57:35,624 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 20:57:35,624 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 20:57:35,624 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 20:57:35,634 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-12-08 20:57:35,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-08 20:57:35,642 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 20:57:35,643 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] [2018-12-08 20:57:35,645 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, disconnect_9Err1ASSERT_VIOLATIONMEMORY_FREE, disconnect_9Err0ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-08 20:57:35,649 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 20:57:35,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1247552342, now seen corresponding path program 1 times [2018-12-08 20:57:35,651 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 20:57:35,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:57:35,685 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 20:57:35,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:57:35,685 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 20:57:35,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 20:57:35,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 20:57:35,786 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 20:57:35,786 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 20:57:35,786 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 20:57:35,789 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 20:57:35,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 20:57:35,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 20:57:35,798 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 5 states. [2018-12-08 20:57:35,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 20:57:35,841 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2018-12-08 20:57:35,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 20:57:35,842 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-12-08 20:57:35,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 20:57:35,847 INFO L225 Difference]: With dead ends: 32 [2018-12-08 20:57:35,847 INFO L226 Difference]: Without dead ends: 29 [2018-12-08 20:57:35,848 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-12-08 20:57:35,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-12-08 20:57:35,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-12-08 20:57:35,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-12-08 20:57:35,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2018-12-08 20:57:35,869 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 20 [2018-12-08 20:57:35,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 20:57:35,869 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2018-12-08 20:57:35,869 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 20:57:35,869 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2018-12-08 20:57:35,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-08 20:57:35,870 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 20:57:35,870 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] [2018-12-08 20:57:35,870 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, disconnect_9Err1ASSERT_VIOLATIONMEMORY_FREE, disconnect_9Err0ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-08 20:57:35,870 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 20:57:35,870 INFO L82 PathProgramCache]: Analyzing trace with hash 19417003, now seen corresponding path program 1 times [2018-12-08 20:57:35,870 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 20:57:35,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:57:35,872 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 20:57:35,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:57:35,872 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 20:57:35,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 20:57:35,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 20:57:35,915 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 20:57:35,916 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 20:57:35,916 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 20:57:35,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 20:57:35,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 20:57:35,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 20:57:35,917 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 5 states. [2018-12-08 20:57:35,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 20:57:35,948 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2018-12-08 20:57:35,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 20:57:35,948 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2018-12-08 20:57:35,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 20:57:35,951 INFO L225 Difference]: With dead ends: 41 [2018-12-08 20:57:35,951 INFO L226 Difference]: Without dead ends: 41 [2018-12-08 20:57:35,952 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 20:57:35,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-12-08 20:57:35,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2018-12-08 20:57:35,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-12-08 20:57:35,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 45 transitions. [2018-12-08 20:57:35,959 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 45 transitions. Word has length 21 [2018-12-08 20:57:35,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 20:57:35,959 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 45 transitions. [2018-12-08 20:57:35,959 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 20:57:35,960 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2018-12-08 20:57:35,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-08 20:57:35,960 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 20:57:35,960 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] [2018-12-08 20:57:35,961 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, disconnect_9Err1ASSERT_VIOLATIONMEMORY_FREE, disconnect_9Err0ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-08 20:57:35,961 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 20:57:35,961 INFO L82 PathProgramCache]: Analyzing trace with hash 148499722, now seen corresponding path program 1 times [2018-12-08 20:57:35,961 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 20:57:35,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:57:35,962 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 20:57:35,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:57:35,963 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 20:57:35,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 20:57:36,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 20:57:36,003 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 20:57:36,003 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 20:57:36,003 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 20:57:36,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 20:57:36,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 20:57:36,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 20:57:36,003 INFO L87 Difference]: Start difference. First operand 40 states and 45 transitions. Second operand 5 states. [2018-12-08 20:57:36,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 20:57:36,039 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2018-12-08 20:57:36,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 20:57:36,039 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2018-12-08 20:57:36,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 20:57:36,040 INFO L225 Difference]: With dead ends: 49 [2018-12-08 20:57:36,040 INFO L226 Difference]: Without dead ends: 49 [2018-12-08 20:57:36,041 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-12-08 20:57:36,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-12-08 20:57:36,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 32. [2018-12-08 20:57:36,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-12-08 20:57:36,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2018-12-08 20:57:36,047 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 21 [2018-12-08 20:57:36,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 20:57:36,047 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2018-12-08 20:57:36,047 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 20:57:36,047 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2018-12-08 20:57:36,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-08 20:57:36,048 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 20:57:36,048 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] [2018-12-08 20:57:36,048 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, disconnect_9Err1ASSERT_VIOLATIONMEMORY_FREE, disconnect_9Err0ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-08 20:57:36,048 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 20:57:36,049 INFO L82 PathProgramCache]: Analyzing trace with hash 604189617, now seen corresponding path program 1 times [2018-12-08 20:57:36,049 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 20:57:36,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:57:36,050 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 20:57:36,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:57:36,050 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 20:57:36,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 20:57:36,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 20:57:36,081 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 20:57:36,082 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 20:57:36,082 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 20:57:36,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 20:57:36,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 20:57:36,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 20:57:36,083 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand 5 states. [2018-12-08 20:57:36,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 20:57:36,090 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2018-12-08 20:57:36,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 20:57:36,091 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2018-12-08 20:57:36,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 20:57:36,091 INFO L225 Difference]: With dead ends: 39 [2018-12-08 20:57:36,092 INFO L226 Difference]: Without dead ends: 39 [2018-12-08 20:57:36,092 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 20:57:36,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-12-08 20:57:36,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2018-12-08 20:57:36,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-12-08 20:57:36,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2018-12-08 20:57:36,096 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 22 [2018-12-08 20:57:36,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 20:57:36,096 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2018-12-08 20:57:36,096 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 20:57:36,096 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2018-12-08 20:57:36,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-08 20:57:36,097 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 20:57:36,097 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] [2018-12-08 20:57:36,097 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, disconnect_9Err1ASSERT_VIOLATIONMEMORY_FREE, disconnect_9Err0ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-08 20:57:36,097 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 20:57:36,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1203264846, now seen corresponding path program 1 times [2018-12-08 20:57:36,097 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 20:57:36,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:57:36,099 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 20:57:36,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:57:36,099 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 20:57:36,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 20:57:36,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 20:57:36,123 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 20:57:36,123 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 20:57:36,123 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 20:57:36,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 20:57:36,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 20:57:36,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 20:57:36,123 INFO L87 Difference]: Start difference. First operand 36 states and 38 transitions. Second operand 5 states. [2018-12-08 20:57:36,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 20:57:36,134 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2018-12-08 20:57:36,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 20:57:36,135 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2018-12-08 20:57:36,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 20:57:36,135 INFO L225 Difference]: With dead ends: 42 [2018-12-08 20:57:36,135 INFO L226 Difference]: Without dead ends: 42 [2018-12-08 20:57:36,135 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 20:57:36,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-12-08 20:57:36,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 36. [2018-12-08 20:57:36,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-12-08 20:57:36,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2018-12-08 20:57:36,137 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 22 [2018-12-08 20:57:36,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 20:57:36,138 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2018-12-08 20:57:36,138 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 20:57:36,138 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2018-12-08 20:57:36,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-08 20:57:36,138 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 20:57:36,138 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] [2018-12-08 20:57:36,138 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, disconnect_9Err1ASSERT_VIOLATIONMEMORY_FREE, disconnect_9Err0ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-08 20:57:36,138 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 20:57:36,138 INFO L82 PathProgramCache]: Analyzing trace with hash -1496667853, now seen corresponding path program 1 times [2018-12-08 20:57:36,139 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 20:57:36,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:57:36,139 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 20:57:36,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:57:36,139 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 20:57:36,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 20:57:36,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 20:57:36,164 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 20:57:36,164 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 20:57:36,164 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 20:57:36,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 20:57:36,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 20:57:36,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 20:57:36,164 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 3 states. [2018-12-08 20:57:36,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 20:57:36,177 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2018-12-08 20:57:36,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 20:57:36,177 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2018-12-08 20:57:36,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 20:57:36,178 INFO L225 Difference]: With dead ends: 41 [2018-12-08 20:57:36,178 INFO L226 Difference]: Without dead ends: 37 [2018-12-08 20:57:36,178 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 [2018-12-08 20:57:36,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-12-08 20:57:36,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 32. [2018-12-08 20:57:36,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-12-08 20:57:36,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2018-12-08 20:57:36,181 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 22 [2018-12-08 20:57:36,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 20:57:36,181 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2018-12-08 20:57:36,181 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 20:57:36,181 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2018-12-08 20:57:36,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-08 20:57:36,182 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 20:57:36,182 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, 1, 1, 1, 1, 1] [2018-12-08 20:57:36,182 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, disconnect_9Err1ASSERT_VIOLATIONMEMORY_FREE, disconnect_9Err0ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-08 20:57:36,182 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 20:57:36,182 INFO L82 PathProgramCache]: Analyzing trace with hash 677892641, now seen corresponding path program 1 times [2018-12-08 20:57:36,182 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 20:57:36,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:57:36,183 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 20:57:36,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:57:36,183 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 20:57:36,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 20:57:36,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 20:57:36,246 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 20:57:36,246 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 20:57:36,246 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 20:57:36,246 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 20:57:36,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 20:57:36,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-08 20:57:36,247 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 7 states. [2018-12-08 20:57:36,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 20:57:36,322 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2018-12-08 20:57:36,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 20:57:36,323 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2018-12-08 20:57:36,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 20:57:36,323 INFO L225 Difference]: With dead ends: 41 [2018-12-08 20:57:36,323 INFO L226 Difference]: Without dead ends: 28 [2018-12-08 20:57:36,324 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-12-08 20:57:36,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-12-08 20:57:36,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-12-08 20:57:36,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-12-08 20:57:36,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 27 transitions. [2018-12-08 20:57:36,327 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 27 transitions. Word has length 27 [2018-12-08 20:57:36,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 20:57:36,327 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 27 transitions. [2018-12-08 20:57:36,327 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 20:57:36,327 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 27 transitions. [2018-12-08 20:57:36,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-08 20:57:36,328 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 20:57:36,328 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, 1, 1, 1, 1, 1] [2018-12-08 20:57:36,328 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, disconnect_9Err1ASSERT_VIOLATIONMEMORY_FREE, disconnect_9Err0ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-08 20:57:36,328 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 20:57:36,329 INFO L82 PathProgramCache]: Analyzing trace with hash -824738337, now seen corresponding path program 1 times [2018-12-08 20:57:36,329 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 20:57:36,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:57:36,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 20:57:36,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:57:36,330 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 20:57:36,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 20:57:36,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 20:57:36,356 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 20:57:36,356 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 20:57:36,356 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 20:57:36,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 20:57:36,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 20:57:36,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 20:57:36,356 INFO L87 Difference]: Start difference. First operand 28 states and 27 transitions. Second operand 5 states. [2018-12-08 20:57:36,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 20:57:36,359 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-12-08 20:57:36,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 20:57:36,359 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2018-12-08 20:57:36,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 20:57:36,360 INFO L225 Difference]: With dead ends: 18 [2018-12-08 20:57:36,360 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 20:57:36,360 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 20:57:36,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 20:57:36,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 20:57:36,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 20:57:36,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 20:57:36,361 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2018-12-08 20:57:36,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 20:57:36,361 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 20:57:36,361 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 20:57:36,361 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 20:57:36,361 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 20:57:36,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 08:57:36 BoogieIcfgContainer [2018-12-08 20:57:36,364 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 20:57:36,364 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 20:57:36,364 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 20:57:36,364 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 20:57:36,364 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:57:35" (3/4) ... [2018-12-08 20:57:36,367 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 20:57:36,371 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2018-12-08 20:57:36,371 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-08 20:57:36,371 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure probe_9 [2018-12-08 20:57:36,371 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-08 20:57:36,372 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure entry_point [2018-12-08 20:57:36,372 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure disconnect_9 [2018-12-08 20:57:36,375 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-12-08 20:57:36,375 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-08 20:57:36,375 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-08 20:57:36,407 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_546b9857-35aa-4d2e-9f11-11e5d556241b/bin-2019/utaipan/witness.graphml [2018-12-08 20:57:36,407 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 20:57:36,408 INFO L168 Benchmark]: Toolchain (without parser) took 1419.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 945.9 MB in the beginning and 946.8 MB in the end (delta: -887.7 kB). Peak memory consumption was 122.8 MB. Max. memory is 11.5 GB. [2018-12-08 20:57:36,409 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. [2018-12-08 20:57:36,409 INFO L168 Benchmark]: CACSL2BoogieTranslator took 371.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -149.7 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. [2018-12-08 20:57:36,409 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.95 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. [2018-12-08 20:57:36,410 INFO L168 Benchmark]: Boogie Preprocessor took 14.97 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. [2018-12-08 20:57:36,410 INFO L168 Benchmark]: RCFGBuilder took 164.20 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: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2018-12-08 20:57:36,410 INFO L168 Benchmark]: TraceAbstraction took 795.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 952.2 MB in the end (delta: 124.3 MB). Peak memory consumption was 124.3 MB. Max. memory is 11.5 GB. [2018-12-08 20:57:36,411 INFO L168 Benchmark]: Witness Printer took 43.02 ms. Allocated memory is still 1.2 GB. Free memory was 952.2 MB in the beginning and 946.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-08 20:57:36,412 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 371.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -149.7 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.95 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 14.97 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 164.20 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: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 795.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 952.2 MB in the end (delta: 124.3 MB). Peak memory consumption was 124.3 MB. Max. memory is 11.5 GB. * Witness Printer took 43.02 ms. Allocated memory is still 1.2 GB. Free memory was 952.2 MB in the beginning and 946.8 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: 1456]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1445]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 1445]: 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 7 procedures, 33 locations, 3 error locations. SAFE Result, 0.7s OverallTime, 8 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 234 SDtfs, 71 SDslu, 498 SDs, 0 SdLazy, 209 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred 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, 8 MinimizatonAttempts, 32 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 182 NumberOfCodeBlocks, 182 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 174 ConstructedInterpolants, 0 QuantifiedInterpolants, 10792 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...