./Ultimate.py --spec ../../sv-benchmarks/c/MemSafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/scopes4_true-valid-memsafety.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_100f52dc-8a42-427f-9956-b165e6b3de3b/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_100f52dc-8a42-427f-9956-b165e6b3de3b/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_100f52dc-8a42-427f-9956-b165e6b3de3b/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_100f52dc-8a42-427f-9956-b165e6b3de3b/bin-2019/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/scopes4_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_100f52dc-8a42-427f-9956-b165e6b3de3b/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_100f52dc-8a42-427f-9956-b165e6b3de3b/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 87dcbb1d4539995e5aba39e6053775ca0fac811e ....................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 12:48:49,553 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:48:49,554 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:48:49,562 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:48:49,562 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:48:49,563 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:48:49,564 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:48:49,565 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:48:49,566 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:48:49,567 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:48:49,568 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:48:49,568 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:48:49,568 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:48:49,569 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:48:49,570 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:48:49,570 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:48:49,571 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:48:49,572 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:48:49,574 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:48:49,575 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:48:49,576 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:48:49,577 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:48:49,579 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:48:49,579 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:48:49,579 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:48:49,580 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:48:49,581 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:48:49,581 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:48:49,582 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:48:49,583 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:48:49,583 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:48:49,584 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:48:49,584 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:48:49,584 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:48:49,585 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:48:49,585 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:48:49,586 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_100f52dc-8a42-427f-9956-b165e6b3de3b/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2018-11-18 12:48:49,599 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:48:49,599 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:48:49,600 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:48:49,600 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 12:48:49,600 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 12:48:49,601 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 12:48:49,601 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 12:48:49,601 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 12:48:49,601 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 12:48:49,601 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 12:48:49,601 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 12:48:49,601 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 12:48:49,602 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 12:48:49,602 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 12:48:49,602 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 12:48:49,602 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:48:49,603 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:48:49,603 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 12:48:49,603 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:48:49,603 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:48:49,603 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:48:49,603 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-18 12:48:49,603 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-18 12:48:49,604 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-18 12:48:49,604 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:48:49,604 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:48:49,604 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:48:49,604 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:48:49,604 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:48:49,605 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:48:49,605 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:48:49,605 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:48:49,605 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:48:49,605 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:48:49,605 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 12:48:49,605 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:48:49,605 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 12:48:49,606 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_100f52dc-8a42-427f-9956-b165e6b3de3b/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 -> 87dcbb1d4539995e5aba39e6053775ca0fac811e [2018-11-18 12:48:49,634 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:48:49,644 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:48:49,646 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:48:49,647 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:48:49,648 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:48:49,648 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_100f52dc-8a42-427f-9956-b165e6b3de3b/bin-2019/utaipan/../../sv-benchmarks/c/memsafety-ext3/scopes4_true-valid-memsafety.c [2018-11-18 12:48:49,687 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_100f52dc-8a42-427f-9956-b165e6b3de3b/bin-2019/utaipan/data/e6563cff9/4f6c6fe859944690a24bcf46e064d5c6/FLAGeb84b9f81 [2018-11-18 12:48:50,084 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:48:50,084 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_100f52dc-8a42-427f-9956-b165e6b3de3b/sv-benchmarks/c/memsafety-ext3/scopes4_true-valid-memsafety.c [2018-11-18 12:48:50,088 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_100f52dc-8a42-427f-9956-b165e6b3de3b/bin-2019/utaipan/data/e6563cff9/4f6c6fe859944690a24bcf46e064d5c6/FLAGeb84b9f81 [2018-11-18 12:48:50,099 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_100f52dc-8a42-427f-9956-b165e6b3de3b/bin-2019/utaipan/data/e6563cff9/4f6c6fe859944690a24bcf46e064d5c6 [2018-11-18 12:48:50,101 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:48:50,102 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 12:48:50,103 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:48:50,103 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:48:50,106 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:48:50,107 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:48:50" (1/1) ... [2018-11-18 12:48:50,108 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47f35898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:48:50, skipping insertion in model container [2018-11-18 12:48:50,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:48:50" (1/1) ... [2018-11-18 12:48:50,115 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:48:50,128 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:48:50,239 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:48:50,248 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:48:50,257 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:48:50,267 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:48:50,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:48:50 WrapperNode [2018-11-18 12:48:50,267 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:48:50,268 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 12:48:50,268 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 12:48:50,268 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 12:48:50,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:48:50" (1/1) ... [2018-11-18 12:48:50,283 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:48:50" (1/1) ... [2018-11-18 12:48:50,289 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 12:48:50,290 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:48:50,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:48:50,290 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:48:50,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:48:50" (1/1) ... [2018-11-18 12:48:50,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:48:50" (1/1) ... [2018-11-18 12:48:50,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:48:50" (1/1) ... [2018-11-18 12:48:50,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:48:50" (1/1) ... [2018-11-18 12:48:50,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:48:50" (1/1) ... [2018-11-18 12:48:50,306 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:48:50" (1/1) ... [2018-11-18 12:48:50,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:48:50" (1/1) ... [2018-11-18 12:48:50,309 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:48:50,310 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:48:50,310 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:48:50,310 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:48:50,311 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:48:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_100f52dc-8a42-427f-9956-b165e6b3de3b/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 [2018-11-18 12:48:50,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 12:48:50,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:48:50,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:48:50,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 12:48:50,399 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2018-11-18 12:48:50,399 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2018-11-18 12:48:50,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:48:50,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:48:50,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 12:48:50,400 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:48:50,400 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:48:50,400 INFO L130 BoogieDeclarations]: Found specification of procedure foo2 [2018-11-18 12:48:50,400 INFO L138 BoogieDeclarations]: Found implementation of procedure foo2 [2018-11-18 12:48:50,545 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:48:50,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:48:50 BoogieIcfgContainer [2018-11-18 12:48:50,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:48:50,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:48:50,546 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:48:50,549 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:48:50,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:48:50" (1/3) ... [2018-11-18 12:48:50,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2efd40ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:48:50, skipping insertion in model container [2018-11-18 12:48:50,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:48:50" (2/3) ... [2018-11-18 12:48:50,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2efd40ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:48:50, skipping insertion in model container [2018-11-18 12:48:50,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:48:50" (3/3) ... [2018-11-18 12:48:50,553 INFO L112 eAbstractionObserver]: Analyzing ICFG scopes4_true-valid-memsafety.c [2018-11-18 12:48:50,563 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:48:50,571 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-11-18 12:48:50,587 INFO L257 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2018-11-18 12:48:50,611 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:48:50,611 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-18 12:48:50,611 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:48:50,611 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:48:50,611 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:48:50,612 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:48:50,612 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:48:50,612 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:48:50,622 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2018-11-18 12:48:50,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-18 12:48:50,628 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:48:50,629 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:48:50,630 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, foo2Err1REQUIRES_VIOLATION, foo2Err0REQUIRES_VIOLATION]=== [2018-11-18 12:48:50,634 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:48:50,635 INFO L82 PathProgramCache]: Analyzing trace with hash -325957377, now seen corresponding path program 1 times [2018-11-18 12:48:50,636 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:48:50,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:48:50,678 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:48:50,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:48:50,678 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:48:50,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:48:50,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:48:50,769 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:48:50,770 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:48:50,770 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:48:50,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 12:48:50,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 12:48:50,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:48:50,788 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 3 states. [2018-11-18 12:48:50,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:48:50,825 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2018-11-18 12:48:50,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 12:48:50,827 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-18 12:48:50,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:48:50,834 INFO L225 Difference]: With dead ends: 24 [2018-11-18 12:48:50,834 INFO L226 Difference]: Without dead ends: 19 [2018-11-18 12:48:50,835 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:48:50,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-18 12:48:50,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-11-18 12:48:50,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-18 12:48:50,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2018-11-18 12:48:50,857 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 8 [2018-11-18 12:48:50,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:48:50,857 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2018-11-18 12:48:50,858 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 12:48:50,858 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2018-11-18 12:48:50,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-18 12:48:50,858 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:48:50,858 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:48:50,858 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, foo2Err1REQUIRES_VIOLATION, foo2Err0REQUIRES_VIOLATION]=== [2018-11-18 12:48:50,859 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:48:50,859 INFO L82 PathProgramCache]: Analyzing trace with hash -325957376, now seen corresponding path program 1 times [2018-11-18 12:48:50,859 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:48:50,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:48:50,860 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:48:50,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:48:50,861 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:48:50,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:48:50,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:48:50,916 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:48:50,916 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:48:50,916 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:48:50,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 12:48:50,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 12:48:50,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:48:50,918 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand 3 states. [2018-11-18 12:48:50,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:48:50,929 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-11-18 12:48:50,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 12:48:50,929 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-18 12:48:50,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:48:50,930 INFO L225 Difference]: With dead ends: 18 [2018-11-18 12:48:50,930 INFO L226 Difference]: Without dead ends: 18 [2018-11-18 12:48:50,930 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:48:50,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-18 12:48:50,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-18 12:48:50,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-18 12:48:50,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2018-11-18 12:48:50,933 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 8 [2018-11-18 12:48:50,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:48:50,933 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2018-11-18 12:48:50,933 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 12:48:50,933 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2018-11-18 12:48:50,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 12:48:50,933 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:48:50,933 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:48:50,934 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, foo2Err1REQUIRES_VIOLATION, foo2Err0REQUIRES_VIOLATION]=== [2018-11-18 12:48:50,934 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:48:50,934 INFO L82 PathProgramCache]: Analyzing trace with hash -1826979706, now seen corresponding path program 1 times [2018-11-18 12:48:50,934 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:48:50,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:48:50,935 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:48:50,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:48:50,935 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:48:50,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:48:51,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:48:51,039 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:48:51,040 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 12:48:51,040 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:48:51,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 12:48:51,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 12:48:51,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-11-18 12:48:51,041 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 8 states. [2018-11-18 12:48:51,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:48:51,136 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2018-11-18 12:48:51,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 12:48:51,137 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2018-11-18 12:48:51,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:48:51,138 INFO L225 Difference]: With dead ends: 17 [2018-11-18 12:48:51,138 INFO L226 Difference]: Without dead ends: 17 [2018-11-18 12:48:51,138 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-11-18 12:48:51,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-11-18 12:48:51,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-11-18 12:48:51,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-18 12:48:51,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2018-11-18 12:48:51,140 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 16 [2018-11-18 12:48:51,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:48:51,141 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2018-11-18 12:48:51,141 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 12:48:51,141 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2018-11-18 12:48:51,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 12:48:51,143 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:48:51,143 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:48:51,143 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, foo2Err1REQUIRES_VIOLATION, foo2Err0REQUIRES_VIOLATION]=== [2018-11-18 12:48:51,144 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:48:51,144 INFO L82 PathProgramCache]: Analyzing trace with hash -1826979705, now seen corresponding path program 1 times [2018-11-18 12:48:51,144 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:48:51,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:48:51,145 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:48:51,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:48:51,145 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:48:51,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:48:51,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:48:51,279 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:48:51,279 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 12:48:51,279 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:48:51,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 12:48:51,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 12:48:51,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-18 12:48:51,280 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand 8 states. [2018-11-18 12:48:51,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:48:51,460 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2018-11-18 12:48:51,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 12:48:51,460 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2018-11-18 12:48:51,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:48:51,461 INFO L225 Difference]: With dead ends: 16 [2018-11-18 12:48:51,461 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 12:48:51,461 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-18 12:48:51,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 12:48:51,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 12:48:51,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 12:48:51,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 12:48:51,462 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2018-11-18 12:48:51,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:48:51,462 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 12:48:51,463 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 12:48:51,463 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 12:48:51,463 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 12:48:51,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:48:51 BoogieIcfgContainer [2018-11-18 12:48:51,469 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:48:51,469 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:48:51,469 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:48:51,469 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:48:51,470 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:48:50" (3/4) ... [2018-11-18 12:48:51,473 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 12:48:51,481 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 12:48:51,481 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure foo [2018-11-18 12:48:51,481 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 12:48:51,482 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure foo2 [2018-11-18 12:48:51,485 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-11-18 12:48:51,485 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-18 12:48:51,485 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 12:48:51,485 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 12:48:51,514 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_100f52dc-8a42-427f-9956-b165e6b3de3b/bin-2019/utaipan/witness.graphml [2018-11-18 12:48:51,515 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:48:51,515 INFO L168 Benchmark]: Toolchain (without parser) took 1413.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 953.8 MB in the beginning and 1.0 GB in the end (delta: -64.1 MB). Peak memory consumption was 78.0 MB. Max. memory is 11.5 GB. [2018-11-18 12:48:51,516 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:48:51,517 INFO L168 Benchmark]: CACSL2BoogieTranslator took 164.58 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 943.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:48:51,517 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.61 ms. Allocated memory is still 1.0 GB. Free memory was 943.0 MB in the beginning and 940.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:48:51,518 INFO L168 Benchmark]: Boogie Preprocessor took 19.69 ms. Allocated memory is still 1.0 GB. Free memory is still 940.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:48:51,519 INFO L168 Benchmark]: RCFGBuilder took 235.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -180.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-18 12:48:51,519 INFO L168 Benchmark]: TraceAbstraction took 922.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 99.6 MB). Peak memory consumption was 99.6 MB. Max. memory is 11.5 GB. [2018-11-18 12:48:51,520 INFO L168 Benchmark]: Witness Printer took 45.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-18 12:48:51,523 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 164.58 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 943.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.61 ms. Allocated memory is still 1.0 GB. Free memory was 943.0 MB in the beginning and 940.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.69 ms. Allocated memory is still 1.0 GB. Free memory is still 940.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 235.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -180.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 922.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 99.6 MB). Peak memory consumption was 99.6 MB. Max. memory is 11.5 GB. * Witness Printer took 45.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 18]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 16]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 6]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 6]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 26 locations, 5 error locations. SAFE Result, 0.8s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 54 SDtfs, 42 SDslu, 37 SDs, 0 SdLazy, 121 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 3992 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...