./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test5_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_8a03278c-fcae-4641-b0a0-a5a8dc29e65a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8a03278c-fcae-4641-b0a0-a5a8dc29e65a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8a03278c-fcae-4641-b0a0-a5a8dc29e65a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8a03278c-fcae-4641-b0a0-a5a8dc29e65a/bin-2019/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test5_true-valid-memsafety_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_8a03278c-fcae-4641-b0a0-a5a8dc29e65a/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8a03278c-fcae-4641-b0a0-a5a8dc29e65a/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 69a450466ef894dfd523cea1e8c68b55495b15f9 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-03 05:44:32,428 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 05:44:32,429 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 05:44:32,436 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 05:44:32,436 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 05:44:32,437 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 05:44:32,438 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 05:44:32,439 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 05:44:32,439 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 05:44:32,440 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 05:44:32,440 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 05:44:32,441 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 05:44:32,441 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 05:44:32,442 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 05:44:32,442 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 05:44:32,443 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 05:44:32,443 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 05:44:32,444 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 05:44:32,445 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 05:44:32,446 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 05:44:32,446 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 05:44:32,447 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 05:44:32,448 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 05:44:32,448 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 05:44:32,448 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 05:44:32,449 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 05:44:32,449 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 05:44:32,450 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 05:44:32,450 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 05:44:32,451 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 05:44:32,451 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 05:44:32,451 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 05:44:32,451 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 05:44:32,452 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 05:44:32,452 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 05:44:32,452 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 05:44:32,453 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8a03278c-fcae-4641-b0a0-a5a8dc29e65a/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2018-12-03 05:44:32,461 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 05:44:32,461 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 05:44:32,461 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 05:44:32,461 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 05:44:32,462 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 05:44:32,462 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 05:44:32,462 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 05:44:32,462 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 05:44:32,462 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 05:44:32,462 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 05:44:32,462 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 05:44:32,462 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-03 05:44:32,462 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 05:44:32,463 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-03 05:44:32,463 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-03 05:44:32,463 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 05:44:32,463 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 05:44:32,463 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-03 05:44:32,463 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 05:44:32,463 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 05:44:32,464 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 05:44:32,464 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-03 05:44:32,464 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-03 05:44:32,464 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-03 05:44:32,464 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 05:44:32,464 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 05:44:32,464 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 05:44:32,464 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 05:44:32,464 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 05:44:32,464 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 05:44:32,464 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 05:44:32,465 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 05:44:32,465 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 05:44:32,465 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 05:44:32,465 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 05:44:32,465 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 05:44:32,465 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_8a03278c-fcae-4641-b0a0-a5a8dc29e65a/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 -> 69a450466ef894dfd523cea1e8c68b55495b15f9 [2018-12-03 05:44:32,483 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 05:44:32,489 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 05:44:32,491 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 05:44:32,492 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 05:44:32,492 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 05:44:32,493 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8a03278c-fcae-4641-b0a0-a5a8dc29e65a/bin-2019/utaipan/../../sv-benchmarks/c/ldv-memsafety/memleaks_test5_true-valid-memsafety_true-termination.i [2018-12-03 05:44:32,529 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8a03278c-fcae-4641-b0a0-a5a8dc29e65a/bin-2019/utaipan/data/24733b1ae/4722e7d1fd204dea82e18e1be0c34563/FLAGbbd82a523 [2018-12-03 05:44:32,936 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 05:44:32,936 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8a03278c-fcae-4641-b0a0-a5a8dc29e65a/sv-benchmarks/c/ldv-memsafety/memleaks_test5_true-valid-memsafety_true-termination.i [2018-12-03 05:44:32,944 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8a03278c-fcae-4641-b0a0-a5a8dc29e65a/bin-2019/utaipan/data/24733b1ae/4722e7d1fd204dea82e18e1be0c34563/FLAGbbd82a523 [2018-12-03 05:44:33,264 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8a03278c-fcae-4641-b0a0-a5a8dc29e65a/bin-2019/utaipan/data/24733b1ae/4722e7d1fd204dea82e18e1be0c34563 [2018-12-03 05:44:33,266 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 05:44:33,267 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 05:44:33,267 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 05:44:33,267 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 05:44:33,269 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 05:44:33,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 05:44:33" (1/1) ... [2018-12-03 05:44:33,271 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b582ff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:44:33, skipping insertion in model container [2018-12-03 05:44:33,271 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 05:44:33" (1/1) ... [2018-12-03 05:44:33,276 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 05:44:33,301 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 05:44:33,509 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 05:44:33,554 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 05:44:33,598 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 05:44:33,638 INFO L195 MainTranslator]: Completed translation [2018-12-03 05:44:33,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:44:33 WrapperNode [2018-12-03 05:44:33,638 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 05:44:33,639 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 05:44:33,639 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 05:44:33,639 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 05:44:33,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:44:33" (1/1) ... [2018-12-03 05:44:33,655 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:44:33" (1/1) ... [2018-12-03 05:44:33,660 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 05:44:33,660 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 05:44:33,660 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 05:44:33,661 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 05:44:33,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:44:33" (1/1) ... [2018-12-03 05:44:33,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:44:33" (1/1) ... [2018-12-03 05:44:33,668 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:44:33" (1/1) ... [2018-12-03 05:44:33,669 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:44:33" (1/1) ... [2018-12-03 05:44:33,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:44:33" (1/1) ... [2018-12-03 05:44:33,673 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:44:33" (1/1) ... [2018-12-03 05:44:33,674 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:44:33" (1/1) ... [2018-12-03 05:44:33,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 05:44:33,676 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 05:44:33,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 05:44:33,676 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 05:44:33,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:44:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8a03278c-fcae-4641-b0a0-a5a8dc29e65a/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 [2018-12-03 05:44:33,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-03 05:44:33,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-12-03 05:44:33,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-12-03 05:44:33,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 05:44:33,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 05:44:33,709 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 05:44:33,709 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 05:44:33,709 INFO L130 BoogieDeclarations]: Found specification of procedure g5 [2018-12-03 05:44:33,709 INFO L138 BoogieDeclarations]: Found implementation of procedure g5 [2018-12-03 05:44:33,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-03 05:44:33,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-12-03 05:44:33,709 INFO L130 BoogieDeclarations]: Found specification of procedure h5 [2018-12-03 05:44:33,709 INFO L138 BoogieDeclarations]: Found implementation of procedure h5 [2018-12-03 05:44:33,709 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2018-12-03 05:44:33,709 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2018-12-03 05:44:33,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 05:44:33,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 05:44:33,831 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 05:44:33,831 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-03 05:44:33,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:44:33 BoogieIcfgContainer [2018-12-03 05:44:33,832 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 05:44:33,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 05:44:33,832 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 05:44:33,836 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 05:44:33,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 05:44:33" (1/3) ... [2018-12-03 05:44:33,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ff203f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 05:44:33, skipping insertion in model container [2018-12-03 05:44:33,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:44:33" (2/3) ... [2018-12-03 05:44:33,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ff203f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 05:44:33, skipping insertion in model container [2018-12-03 05:44:33,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:44:33" (3/3) ... [2018-12-03 05:44:33,838 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test5_true-valid-memsafety_true-termination.i [2018-12-03 05:44:33,844 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 05:44:33,849 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-12-03 05:44:33,858 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-12-03 05:44:33,873 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 05:44:33,873 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-03 05:44:33,873 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 05:44:33,873 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 05:44:33,873 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 05:44:33,873 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 05:44:33,873 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 05:44:33,873 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 05:44:33,881 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2018-12-03 05:44:33,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-03 05:44:33,886 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:44:33,887 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] [2018-12-03 05:44:33,888 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, g5Err0ASSERT_VIOLATIONMEMORY_FREE, g5Err1ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-03 05:44:33,891 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:44:33,892 INFO L82 PathProgramCache]: Analyzing trace with hash -2092658597, now seen corresponding path program 1 times [2018-12-03 05:44:33,893 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 05:44:33,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:44:33,924 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:44:33,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:44:33,925 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 05:44:33,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:44:34,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 05:44:34,044 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 05:44:34,044 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-03 05:44:34,044 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 05:44:34,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-03 05:44:34,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-03 05:44:34,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-03 05:44:34,057 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 9 states. [2018-12-03 05:44:34,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:44:34,102 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2018-12-03 05:44:34,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-03 05:44:34,103 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2018-12-03 05:44:34,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:44:34,109 INFO L225 Difference]: With dead ends: 31 [2018-12-03 05:44:34,109 INFO L226 Difference]: Without dead ends: 28 [2018-12-03 05:44:34,110 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-12-03 05:44:34,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-12-03 05:44:34,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-12-03 05:44:34,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-12-03 05:44:34,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2018-12-03 05:44:34,131 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 20 [2018-12-03 05:44:34,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:44:34,132 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2018-12-03 05:44:34,132 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-03 05:44:34,132 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2018-12-03 05:44:34,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-03 05:44:34,132 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:44:34,133 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] [2018-12-03 05:44:34,133 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, g5Err0ASSERT_VIOLATIONMEMORY_FREE, g5Err1ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-03 05:44:34,133 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:44:34,133 INFO L82 PathProgramCache]: Analyzing trace with hash -447907009, now seen corresponding path program 1 times [2018-12-03 05:44:34,133 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 05:44:34,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:44:34,135 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:44:34,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:44:34,135 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 05:44:34,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:44:34,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 05:44:34,217 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 05:44:34,218 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-03 05:44:34,218 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 05:44:34,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-03 05:44:34,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-03 05:44:34,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-03 05:44:34,220 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 9 states. [2018-12-03 05:44:34,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:44:34,290 INFO L93 Difference]: Finished difference Result 43 states and 46 transitions. [2018-12-03 05:44:34,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-03 05:44:34,290 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2018-12-03 05:44:34,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:44:34,292 INFO L225 Difference]: With dead ends: 43 [2018-12-03 05:44:34,292 INFO L226 Difference]: Without dead ends: 43 [2018-12-03 05:44:34,293 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-12-03 05:44:34,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-12-03 05:44:34,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2018-12-03 05:44:34,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-03 05:44:34,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2018-12-03 05:44:34,300 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 21 [2018-12-03 05:44:34,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:44:34,301 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2018-12-03 05:44:34,301 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-03 05:44:34,301 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2018-12-03 05:44:34,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-03 05:44:34,302 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:44:34,302 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] [2018-12-03 05:44:34,302 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, g5Err0ASSERT_VIOLATIONMEMORY_FREE, g5Err1ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-03 05:44:34,303 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:44:34,303 INFO L82 PathProgramCache]: Analyzing trace with hash -318824290, now seen corresponding path program 1 times [2018-12-03 05:44:34,303 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 05:44:34,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:44:34,304 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:44:34,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:44:34,305 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 05:44:34,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:44:34,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 05:44:34,359 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 05:44:34,359 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-03 05:44:34,359 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 05:44:34,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-03 05:44:34,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-03 05:44:34,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-03 05:44:34,360 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand 9 states. [2018-12-03 05:44:34,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:44:34,390 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2018-12-03 05:44:34,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-03 05:44:34,391 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2018-12-03 05:44:34,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:44:34,392 INFO L225 Difference]: With dead ends: 44 [2018-12-03 05:44:34,392 INFO L226 Difference]: Without dead ends: 44 [2018-12-03 05:44:34,392 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-12-03 05:44:34,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-12-03 05:44:34,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 27. [2018-12-03 05:44:34,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-12-03 05:44:34,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2018-12-03 05:44:34,396 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 21 [2018-12-03 05:44:34,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:44:34,396 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2018-12-03 05:44:34,396 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-03 05:44:34,396 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2018-12-03 05:44:34,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-03 05:44:34,397 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:44:34,397 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] [2018-12-03 05:44:34,397 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, g5Err0ASSERT_VIOLATIONMEMORY_FREE, g5Err1ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-03 05:44:34,398 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:44:34,398 INFO L82 PathProgramCache]: Analyzing trace with hash 1043526443, now seen corresponding path program 1 times [2018-12-03 05:44:34,398 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 05:44:34,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:44:34,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:44:34,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:44:34,399 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 05:44:34,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:44:34,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 05:44:34,455 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 05:44:34,455 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-03 05:44:34,455 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 05:44:34,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-03 05:44:34,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-03 05:44:34,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-03 05:44:34,456 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 9 states. [2018-12-03 05:44:34,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:44:34,488 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2018-12-03 05:44:34,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-03 05:44:34,489 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2018-12-03 05:44:34,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:44:34,490 INFO L225 Difference]: With dead ends: 38 [2018-12-03 05:44:34,490 INFO L226 Difference]: Without dead ends: 38 [2018-12-03 05:44:34,490 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-12-03 05:44:34,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-12-03 05:44:34,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2018-12-03 05:44:34,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-12-03 05:44:34,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2018-12-03 05:44:34,496 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 24 [2018-12-03 05:44:34,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:44:34,497 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2018-12-03 05:44:34,497 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-03 05:44:34,497 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2018-12-03 05:44:34,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-03 05:44:34,498 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:44:34,498 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] [2018-12-03 05:44:34,498 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, g5Err0ASSERT_VIOLATIONMEMORY_FREE, g5Err1ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-03 05:44:34,498 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:44:34,499 INFO L82 PathProgramCache]: Analyzing trace with hash -1743889044, now seen corresponding path program 1 times [2018-12-03 05:44:34,499 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 05:44:34,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:44:34,500 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:44:34,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:44:34,500 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 05:44:34,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:44:34,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 05:44:34,525 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 05:44:34,525 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 05:44:34,525 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 05:44:34,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 05:44:34,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 05:44:34,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 05:44:34,526 INFO L87 Difference]: Start difference. First operand 36 states and 38 transitions. Second operand 3 states. [2018-12-03 05:44:34,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:44:34,547 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2018-12-03 05:44:34,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 05:44:34,547 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2018-12-03 05:44:34,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:44:34,548 INFO L225 Difference]: With dead ends: 39 [2018-12-03 05:44:34,548 INFO L226 Difference]: Without dead ends: 34 [2018-12-03 05:44:34,549 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 05:44:34,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-12-03 05:44:34,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 27. [2018-12-03 05:44:34,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-12-03 05:44:34,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2018-12-03 05:44:34,552 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 24 [2018-12-03 05:44:34,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:44:34,552 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2018-12-03 05:44:34,552 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 05:44:34,552 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2018-12-03 05:44:34,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-03 05:44:34,553 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:44:34,553 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] [2018-12-03 05:44:34,553 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, g5Err0ASSERT_VIOLATIONMEMORY_FREE, g5Err1ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-03 05:44:34,554 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:44:34,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1242247953, now seen corresponding path program 1 times [2018-12-03 05:44:34,554 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 05:44:34,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:44:34,555 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:44:34,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:44:34,555 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 05:44:34,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:44:34,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 05:44:34,676 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 05:44:34,676 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-03 05:44:34,676 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 05:44:34,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-03 05:44:34,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-03 05:44:34,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-03 05:44:34,677 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 10 states. [2018-12-03 05:44:34,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:44:34,779 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-12-03 05:44:34,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-03 05:44:34,780 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2018-12-03 05:44:34,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:44:34,780 INFO L225 Difference]: With dead ends: 37 [2018-12-03 05:44:34,780 INFO L226 Difference]: Without dead ends: 27 [2018-12-03 05:44:34,781 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-12-03 05:44:34,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-12-03 05:44:34,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-12-03 05:44:34,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-12-03 05:44:34,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2018-12-03 05:44:34,783 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 26 [2018-12-03 05:44:34,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:44:34,783 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2018-12-03 05:44:34,783 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-03 05:44:34,783 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2018-12-03 05:44:34,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-03 05:44:34,783 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:44:34,783 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] [2018-12-03 05:44:34,784 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, g5Err0ASSERT_VIOLATIONMEMORY_FREE, g5Err1ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-03 05:44:34,784 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:44:34,784 INFO L82 PathProgramCache]: Analyzing trace with hash 111061744, now seen corresponding path program 1 times [2018-12-03 05:44:34,784 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 05:44:34,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:44:34,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:44:34,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:44:34,785 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 05:44:34,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:44:34,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 05:44:34,871 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 05:44:34,871 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-12-03 05:44:34,871 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 05:44:34,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-03 05:44:34,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-03 05:44:34,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-12-03 05:44:34,871 INFO L87 Difference]: Start difference. First operand 27 states and 26 transitions. Second operand 11 states. [2018-12-03 05:44:34,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:44:34,919 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2018-12-03 05:44:34,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-03 05:44:34,919 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2018-12-03 05:44:34,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:44:34,919 INFO L225 Difference]: With dead ends: 23 [2018-12-03 05:44:34,920 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 05:44:34,920 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2018-12-03 05:44:34,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 05:44:34,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 05:44:34,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 05:44:34,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 05:44:34,920 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-12-03 05:44:34,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:44:34,920 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 05:44:34,920 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-03 05:44:34,921 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 05:44:34,921 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 05:44:34,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 05:44:34 BoogieIcfgContainer [2018-12-03 05:44:34,924 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 05:44:34,924 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 05:44:34,924 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 05:44:34,924 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 05:44:34,924 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:44:33" (3/4) ... [2018-12-03 05:44:34,927 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-03 05:44:34,931 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2018-12-03 05:44:34,931 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-03 05:44:34,931 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-03 05:44:34,931 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure h5 [2018-12-03 05:44:34,931 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure entry_point [2018-12-03 05:44:34,931 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure g5 [2018-12-03 05:44:34,934 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-12-03 05:44:34,934 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-03 05:44:34,934 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-03 05:44:34,961 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_8a03278c-fcae-4641-b0a0-a5a8dc29e65a/bin-2019/utaipan/witness.graphml [2018-12-03 05:44:34,961 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 05:44:34,962 INFO L168 Benchmark]: Toolchain (without parser) took 1695.47 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 951.3 MB in the beginning and 860.5 MB in the end (delta: 90.8 MB). Peak memory consumption was 189.9 MB. Max. memory is 11.5 GB. [2018-12-03 05:44:34,963 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 05:44:34,963 INFO L168 Benchmark]: CACSL2BoogieTranslator took 370.98 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -116.3 MB). Peak memory consumption was 36.3 MB. Max. memory is 11.5 GB. [2018-12-03 05:44:34,963 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.63 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. [2018-12-03 05:44:34,964 INFO L168 Benchmark]: Boogie Preprocessor took 15.00 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. [2018-12-03 05:44:34,964 INFO L168 Benchmark]: RCFGBuilder took 156.20 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2018-12-03 05:44:34,964 INFO L168 Benchmark]: TraceAbstraction took 1091.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 860.5 MB in the end (delta: 188.7 MB). Peak memory consumption was 188.7 MB. Max. memory is 11.5 GB. [2018-12-03 05:44:34,964 INFO L168 Benchmark]: Witness Printer took 37.47 ms. Allocated memory is still 1.1 GB. Free memory is still 860.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 05:44:34,965 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 370.98 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -116.3 MB). Peak memory consumption was 36.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.63 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 15.00 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 156.20 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1091.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 860.5 MB in the end (delta: 188.7 MB). Peak memory consumption was 188.7 MB. Max. memory is 11.5 GB. * Witness Printer took 37.47 ms. Allocated memory is still 1.1 GB. Free memory is still 860.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1449]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1440]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 1440]: 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, 32 locations, 3 error locations. SAFE Result, 1.0s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 177 SDtfs, 55 SDslu, 898 SDs, 0 SdLazy, 480 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred 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, 28 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 162 NumberOfCodeBlocks, 162 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 155 ConstructedInterpolants, 0 QuantifiedInterpolants, 12989 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...