./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_d6bb1bcd-ca5f-4b0c-8251-c80169080dd9/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d6bb1bcd-ca5f-4b0c-8251-c80169080dd9/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d6bb1bcd-ca5f-4b0c-8251-c80169080dd9/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d6bb1bcd-ca5f-4b0c-8251-c80169080dd9/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_d6bb1bcd-ca5f-4b0c-8251-c80169080dd9/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d6bb1bcd-ca5f-4b0c-8251-c80169080dd9/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 [2018-12-02 17:43:52,529 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 17:43:52,531 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 17:43:52,538 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 17:43:52,538 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 17:43:52,539 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 17:43:52,540 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 17:43:52,541 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 17:43:52,542 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 17:43:52,543 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 17:43:52,544 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 17:43:52,544 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 17:43:52,544 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 17:43:52,545 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 17:43:52,546 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 17:43:52,546 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 17:43:52,547 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 17:43:52,548 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 17:43:52,550 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 17:43:52,551 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 17:43:52,552 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 17:43:52,552 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 17:43:52,554 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 17:43:52,554 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 17:43:52,554 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 17:43:52,555 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 17:43:52,556 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 17:43:52,556 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 17:43:52,557 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 17:43:52,557 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 17:43:52,558 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 17:43:52,558 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 17:43:52,558 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 17:43:52,558 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 17:43:52,559 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 17:43:52,559 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 17:43:52,559 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d6bb1bcd-ca5f-4b0c-8251-c80169080dd9/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2018-12-02 17:43:52,567 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 17:43:52,568 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 17:43:52,568 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 17:43:52,568 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 17:43:52,568 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 17:43:52,568 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 17:43:52,568 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 17:43:52,569 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 17:43:52,569 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 17:43:52,569 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 17:43:52,569 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 17:43:52,569 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 17:43:52,569 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 17:43:52,569 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 17:43:52,569 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 17:43:52,570 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 17:43:52,570 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 17:43:52,570 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 17:43:52,570 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 17:43:52,570 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 17:43:52,570 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 17:43:52,570 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-02 17:43:52,570 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-02 17:43:52,570 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-02 17:43:52,570 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 17:43:52,570 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 17:43:52,571 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 17:43:52,571 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 17:43:52,571 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 17:43:52,571 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 17:43:52,571 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 17:43:52,571 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 17:43:52,571 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 17:43:52,571 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 17:43:52,571 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 17:43:52,571 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 17:43:52,572 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_d6bb1bcd-ca5f-4b0c-8251-c80169080dd9/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 [2018-12-02 17:43:52,589 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 17:43:52,598 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 17:43:52,601 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 17:43:52,602 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 17:43:52,602 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 17:43:52,603 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d6bb1bcd-ca5f-4b0c-8251-c80169080dd9/bin-2019/utaipan/../../sv-benchmarks/c/ldv-memsafety/memleaks_test9_true-valid-memsafety_true-termination.i [2018-12-02 17:43:52,642 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d6bb1bcd-ca5f-4b0c-8251-c80169080dd9/bin-2019/utaipan/data/04789c142/c66ee5729a73495f852c0bda1c2593e7/FLAGb41d816c9 [2018-12-02 17:43:53,004 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 17:43:53,004 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d6bb1bcd-ca5f-4b0c-8251-c80169080dd9/sv-benchmarks/c/ldv-memsafety/memleaks_test9_true-valid-memsafety_true-termination.i [2018-12-02 17:43:53,011 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d6bb1bcd-ca5f-4b0c-8251-c80169080dd9/bin-2019/utaipan/data/04789c142/c66ee5729a73495f852c0bda1c2593e7/FLAGb41d816c9 [2018-12-02 17:43:53,369 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d6bb1bcd-ca5f-4b0c-8251-c80169080dd9/bin-2019/utaipan/data/04789c142/c66ee5729a73495f852c0bda1c2593e7 [2018-12-02 17:43:53,371 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 17:43:53,372 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 17:43:53,372 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 17:43:53,373 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 17:43:53,375 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 17:43:53,376 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:43:53" (1/1) ... [2018-12-02 17:43:53,378 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bdff3fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:43:53, skipping insertion in model container [2018-12-02 17:43:53,378 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:43:53" (1/1) ... [2018-12-02 17:43:53,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 17:43:53,413 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 17:43:53,657 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 17:43:53,665 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 17:43:53,697 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 17:43:53,729 INFO L195 MainTranslator]: Completed translation [2018-12-02 17:43:53,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:43:53 WrapperNode [2018-12-02 17:43:53,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 17:43:53,730 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 17:43:53,730 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 17:43:53,731 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 17:43:53,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:43:53" (1/1) ... [2018-12-02 17:43:53,747 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:43:53" (1/1) ... [2018-12-02 17:43:53,752 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 17:43:53,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 17:43:53,753 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 17:43:53,753 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 17:43:53,759 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:43:53" (1/1) ... [2018-12-02 17:43:53,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:43:53" (1/1) ... [2018-12-02 17:43:53,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:43:53" (1/1) ... [2018-12-02 17:43:53,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:43:53" (1/1) ... [2018-12-02 17:43:53,764 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:43:53" (1/1) ... [2018-12-02 17:43:53,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:43:53" (1/1) ... [2018-12-02 17:43:53,766 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:43:53" (1/1) ... [2018-12-02 17:43:53,767 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 17:43:53,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 17:43:53,768 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 17:43:53,768 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 17:43:53,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:43:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d6bb1bcd-ca5f-4b0c-8251-c80169080dd9/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 17:43:53,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 17:43:53,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-12-02 17:43:53,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-12-02 17:43:53,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 17:43:53,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 17:43:53,800 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 17:43:53,800 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 17:43:53,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 17:43:53,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-12-02 17:43:53,801 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2018-12-02 17:43:53,801 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2018-12-02 17:43:53,801 INFO L130 BoogieDeclarations]: Found specification of procedure probe_9 [2018-12-02 17:43:53,801 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_9 [2018-12-02 17:43:53,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 17:43:53,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 17:43:53,801 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect_9 [2018-12-02 17:43:53,801 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect_9 [2018-12-02 17:43:53,911 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 17:43:53,911 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-02 17:43:53,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:43:53 BoogieIcfgContainer [2018-12-02 17:43:53,911 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 17:43:53,912 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 17:43:53,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 17:43:53,914 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 17:43:53,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:43:53" (1/3) ... [2018-12-02 17:43:53,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3efadc63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:43:53, skipping insertion in model container [2018-12-02 17:43:53,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:43:53" (2/3) ... [2018-12-02 17:43:53,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3efadc63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:43:53, skipping insertion in model container [2018-12-02 17:43:53,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:43:53" (3/3) ... [2018-12-02 17:43:53,916 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test9_true-valid-memsafety_true-termination.i [2018-12-02 17:43:53,922 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 17:43:53,926 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-12-02 17:43:53,935 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-12-02 17:43:53,949 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 17:43:53,950 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-02 17:43:53,950 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 17:43:53,950 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 17:43:53,950 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 17:43:53,950 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 17:43:53,950 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 17:43:53,950 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 17:43:53,958 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-12-02 17:43:53,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-02 17:43:53,963 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:43:53,964 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] [2018-12-02 17:43:53,965 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, disconnect_9Err1ASSERT_VIOLATIONMEMORY_FREE, disconnect_9Err0ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-02 17:43:53,968 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:43:53,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1247552342, now seen corresponding path program 1 times [2018-12-02 17:43:53,969 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:43:54,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:43:54,004 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:43:54,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:43:54,004 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:43:54,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:43:54,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 17:43:54,101 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 17:43:54,101 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-02 17:43:54,101 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:43:54,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 17:43:54,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 17:43:54,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-02 17:43:54,113 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 5 states. [2018-12-02 17:43:54,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:43:54,151 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2018-12-02 17:43:54,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 17:43:54,153 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-12-02 17:43:54,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:43:54,158 INFO L225 Difference]: With dead ends: 32 [2018-12-02 17:43:54,158 INFO L226 Difference]: Without dead ends: 29 [2018-12-02 17:43:54,159 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 [2018-12-02 17:43:54,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-12-02 17:43:54,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-12-02 17:43:54,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-12-02 17:43:54,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2018-12-02 17:43:54,179 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 20 [2018-12-02 17:43:54,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:43:54,180 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2018-12-02 17:43:54,180 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 17:43:54,180 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2018-12-02 17:43:54,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-02 17:43:54,180 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:43:54,180 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 17:43:54,180 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, disconnect_9Err1ASSERT_VIOLATIONMEMORY_FREE, disconnect_9Err0ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-02 17:43:54,181 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:43:54,181 INFO L82 PathProgramCache]: Analyzing trace with hash 19417003, now seen corresponding path program 1 times [2018-12-02 17:43:54,181 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:43:54,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:43:54,182 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:43:54,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:43:54,182 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:43:54,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:43:54,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 17:43:54,230 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 17:43:54,230 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-02 17:43:54,230 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:43:54,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 17:43:54,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 17:43:54,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-02 17:43:54,232 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 5 states. [2018-12-02 17:43:54,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:43:54,272 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2018-12-02 17:43:54,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 17:43:54,272 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2018-12-02 17:43:54,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:43:54,275 INFO L225 Difference]: With dead ends: 41 [2018-12-02 17:43:54,276 INFO L226 Difference]: Without dead ends: 41 [2018-12-02 17:43:54,276 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 [2018-12-02 17:43:54,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-12-02 17:43:54,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2018-12-02 17:43:54,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-12-02 17:43:54,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 45 transitions. [2018-12-02 17:43:54,283 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 45 transitions. Word has length 21 [2018-12-02 17:43:54,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:43:54,283 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 45 transitions. [2018-12-02 17:43:54,284 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 17:43:54,284 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2018-12-02 17:43:54,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-02 17:43:54,284 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:43:54,284 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] [2018-12-02 17:43:54,285 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, disconnect_9Err1ASSERT_VIOLATIONMEMORY_FREE, disconnect_9Err0ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-02 17:43:54,285 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:43:54,285 INFO L82 PathProgramCache]: Analyzing trace with hash 148499722, now seen corresponding path program 1 times [2018-12-02 17:43:54,285 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:43:54,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:43:54,286 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:43:54,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:43:54,287 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:43:54,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:43:54,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 17:43:54,336 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 17:43:54,336 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 17:43:54,336 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:43:54,336 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 17:43:54,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 17:43:54,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-02 17:43:54,337 INFO L87 Difference]: Start difference. First operand 40 states and 45 transitions. Second operand 5 states. [2018-12-02 17:43:54,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:43:54,367 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2018-12-02 17:43:54,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 17:43:54,368 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2018-12-02 17:43:54,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:43:54,368 INFO L225 Difference]: With dead ends: 49 [2018-12-02 17:43:54,368 INFO L226 Difference]: Without dead ends: 49 [2018-12-02 17:43:54,369 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 [2018-12-02 17:43:54,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-12-02 17:43:54,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 32. [2018-12-02 17:43:54,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-12-02 17:43:54,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2018-12-02 17:43:54,373 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 21 [2018-12-02 17:43:54,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:43:54,373 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2018-12-02 17:43:54,373 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 17:43:54,373 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2018-12-02 17:43:54,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-02 17:43:54,373 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:43:54,373 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 17:43:54,374 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, disconnect_9Err1ASSERT_VIOLATIONMEMORY_FREE, disconnect_9Err0ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-02 17:43:54,374 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:43:54,374 INFO L82 PathProgramCache]: Analyzing trace with hash 604189617, now seen corresponding path program 1 times [2018-12-02 17:43:54,374 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:43:54,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:43:54,375 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:43:54,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:43:54,375 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:43:54,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:43:54,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 17:43:54,403 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 17:43:54,404 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 17:43:54,404 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:43:54,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 17:43:54,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 17:43:54,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-02 17:43:54,404 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand 5 states. [2018-12-02 17:43:54,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:43:54,411 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2018-12-02 17:43:54,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 17:43:54,411 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2018-12-02 17:43:54,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:43:54,412 INFO L225 Difference]: With dead ends: 39 [2018-12-02 17:43:54,412 INFO L226 Difference]: Without dead ends: 39 [2018-12-02 17:43:54,412 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 [2018-12-02 17:43:54,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-12-02 17:43:54,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2018-12-02 17:43:54,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-12-02 17:43:54,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2018-12-02 17:43:54,414 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 22 [2018-12-02 17:43:54,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:43:54,415 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2018-12-02 17:43:54,415 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 17:43:54,415 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2018-12-02 17:43:54,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-02 17:43:54,415 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:43:54,415 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 17:43:54,416 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, disconnect_9Err1ASSERT_VIOLATIONMEMORY_FREE, disconnect_9Err0ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-02 17:43:54,416 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:43:54,416 INFO L82 PathProgramCache]: Analyzing trace with hash -1203264846, now seen corresponding path program 1 times [2018-12-02 17:43:54,416 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:43:54,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:43:54,417 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:43:54,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:43:54,417 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:43:54,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:43:54,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 17:43:54,440 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 17:43:54,440 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 17:43:54,440 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:43:54,441 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 17:43:54,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 17:43:54,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-02 17:43:54,441 INFO L87 Difference]: Start difference. First operand 36 states and 38 transitions. Second operand 5 states. [2018-12-02 17:43:54,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:43:54,454 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2018-12-02 17:43:54,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 17:43:54,454 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2018-12-02 17:43:54,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:43:54,454 INFO L225 Difference]: With dead ends: 42 [2018-12-02 17:43:54,454 INFO L226 Difference]: Without dead ends: 42 [2018-12-02 17:43:54,455 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 [2018-12-02 17:43:54,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-12-02 17:43:54,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 36. [2018-12-02 17:43:54,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-12-02 17:43:54,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2018-12-02 17:43:54,457 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 22 [2018-12-02 17:43:54,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:43:54,457 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2018-12-02 17:43:54,457 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 17:43:54,457 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2018-12-02 17:43:54,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-02 17:43:54,458 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:43:54,458 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 17:43:54,458 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, disconnect_9Err1ASSERT_VIOLATIONMEMORY_FREE, disconnect_9Err0ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-02 17:43:54,458 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:43:54,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1496667853, now seen corresponding path program 1 times [2018-12-02 17:43:54,458 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:43:54,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:43:54,459 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:43:54,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:43:54,459 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:43:54,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:43:54,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 17:43:54,476 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 17:43:54,476 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 17:43:54,476 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:43:54,476 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 17:43:54,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 17:43:54,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 17:43:54,477 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 3 states. [2018-12-02 17:43:54,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:43:54,492 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2018-12-02 17:43:54,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 17:43:54,492 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2018-12-02 17:43:54,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:43:54,493 INFO L225 Difference]: With dead ends: 41 [2018-12-02 17:43:54,493 INFO L226 Difference]: Without dead ends: 37 [2018-12-02 17:43:54,493 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 [2018-12-02 17:43:54,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-12-02 17:43:54,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 32. [2018-12-02 17:43:54,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-12-02 17:43:54,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2018-12-02 17:43:54,497 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 22 [2018-12-02 17:43:54,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:43:54,497 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2018-12-02 17:43:54,497 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 17:43:54,497 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2018-12-02 17:43:54,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-02 17:43:54,497 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:43:54,497 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] [2018-12-02 17:43:54,498 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, disconnect_9Err1ASSERT_VIOLATIONMEMORY_FREE, disconnect_9Err0ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-02 17:43:54,498 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:43:54,498 INFO L82 PathProgramCache]: Analyzing trace with hash 677892641, now seen corresponding path program 1 times [2018-12-02 17:43:54,498 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:43:54,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:43:54,499 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:43:54,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:43:54,499 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:43:54,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:43:54,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 17:43:54,579 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 17:43:54,579 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 17:43:54,579 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:43:54,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 17:43:54,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 17:43:54,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 17:43:54,580 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 7 states. [2018-12-02 17:43:54,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:43:54,650 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2018-12-02 17:43:54,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 17:43:54,650 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2018-12-02 17:43:54,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:43:54,651 INFO L225 Difference]: With dead ends: 41 [2018-12-02 17:43:54,651 INFO L226 Difference]: Without dead ends: 28 [2018-12-02 17:43:54,651 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 [2018-12-02 17:43:54,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-12-02 17:43:54,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-12-02 17:43:54,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-12-02 17:43:54,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 27 transitions. [2018-12-02 17:43:54,653 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 27 transitions. Word has length 27 [2018-12-02 17:43:54,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:43:54,653 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 27 transitions. [2018-12-02 17:43:54,653 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 17:43:54,653 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 27 transitions. [2018-12-02 17:43:54,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-02 17:43:54,654 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:43:54,654 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] [2018-12-02 17:43:54,654 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, disconnect_9Err1ASSERT_VIOLATIONMEMORY_FREE, disconnect_9Err0ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-02 17:43:54,654 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:43:54,654 INFO L82 PathProgramCache]: Analyzing trace with hash -824738337, now seen corresponding path program 1 times [2018-12-02 17:43:54,654 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:43:54,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:43:54,655 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:43:54,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:43:54,655 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:43:54,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:43:54,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 17:43:54,675 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 17:43:54,676 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 17:43:54,676 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:43:54,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 17:43:54,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 17:43:54,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-02 17:43:54,676 INFO L87 Difference]: Start difference. First operand 28 states and 27 transitions. Second operand 5 states. [2018-12-02 17:43:54,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:43:54,679 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-12-02 17:43:54,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 17:43:54,679 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2018-12-02 17:43:54,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:43:54,679 INFO L225 Difference]: With dead ends: 18 [2018-12-02 17:43:54,679 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 17:43:54,680 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 [2018-12-02 17:43:54,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 17:43:54,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 17:43:54,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 17:43:54,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 17:43:54,680 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2018-12-02 17:43:54,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:43:54,680 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 17:43:54,680 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 17:43:54,681 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 17:43:54,681 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 17:43:54,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 05:43:54 BoogieIcfgContainer [2018-12-02 17:43:54,684 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 17:43:54,684 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 17:43:54,684 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 17:43:54,684 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 17:43:54,684 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:43:53" (3/4) ... [2018-12-02 17:43:54,687 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 17:43:54,691 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2018-12-02 17:43:54,691 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 17:43:54,691 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure probe_9 [2018-12-02 17:43:54,692 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 17:43:54,692 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure entry_point [2018-12-02 17:43:54,692 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure disconnect_9 [2018-12-02 17:43:54,695 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-12-02 17:43:54,696 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-02 17:43:54,696 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 17:43:54,726 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_d6bb1bcd-ca5f-4b0c-8251-c80169080dd9/bin-2019/utaipan/witness.graphml [2018-12-02 17:43:54,726 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 17:43:54,727 INFO L168 Benchmark]: Toolchain (without parser) took 1355.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 952.4 MB in the beginning and 964.0 MB in the end (delta: -11.6 MB). Peak memory consumption was 130.5 MB. Max. memory is 11.5 GB. [2018-12-02 17:43:54,728 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 17:43:54,729 INFO L168 Benchmark]: CACSL2BoogieTranslator took 357.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -163.2 MB). Peak memory consumption was 33.5 MB. Max. memory is 11.5 GB. [2018-12-02 17:43:54,729 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.14 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-12-02 17:43:54,729 INFO L168 Benchmark]: Boogie Preprocessor took 14.59 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 17:43:54,730 INFO L168 Benchmark]: RCFGBuilder took 143.93 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: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2018-12-02 17:43:54,730 INFO L168 Benchmark]: TraceAbstraction took 771.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 967.3 MB in the end (delta: 127.3 MB). Peak memory consumption was 127.3 MB. Max. memory is 11.5 GB. [2018-12-02 17:43:54,730 INFO L168 Benchmark]: Witness Printer took 42.66 ms. Allocated memory is still 1.2 GB. Free memory was 967.3 MB in the beginning and 964.0 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-12-02 17:43:54,732 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 357.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -163.2 MB). Peak memory consumption was 33.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 22.14 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.59 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 143.93 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: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 771.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 967.3 MB in the end (delta: 127.3 MB). Peak memory consumption was 127.3 MB. Max. memory is 11.5 GB. * Witness Printer took 42.66 ms. Allocated memory is still 1.2 GB. Free memory was 967.3 MB in the beginning and 964.0 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 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...