./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memset3_-write.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_153fdb51-a1ab-4556-85f0-7fc6537703e5/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_153fdb51-a1ab-4556-85f0-7fc6537703e5/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_153fdb51-a1ab-4556-85f0-7fc6537703e5/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_153fdb51-a1ab-4556-85f0-7fc6537703e5/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memset3_-write.c -s /tmp/vcloud-vcloud-master/worker/run_dir_153fdb51-a1ab-4556-85f0-7fc6537703e5/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_153fdb51-a1ab-4556-85f0-7fc6537703e5/bin/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 97106d24c91338d3a7f71605e6dcf95bdff73f56 ............................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 10:15:26,852 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:15:26,853 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:15:26,860 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:15:26,861 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:15:26,861 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:15:26,862 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:15:26,864 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:15:26,865 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:15:26,865 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:15:26,866 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:15:26,867 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:15:26,867 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:15:26,868 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:15:26,868 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:15:26,869 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:15:26,870 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:15:26,870 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:15:26,872 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:15:26,873 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:15:26,874 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:15:26,875 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:15:26,876 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:15:26,876 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:15:26,878 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:15:26,878 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:15:26,878 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:15:26,879 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:15:26,879 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:15:26,879 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:15:26,880 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:15:26,880 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:15:26,880 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:15:26,881 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:15:26,881 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:15:26,882 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:15:26,882 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:15:26,882 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:15:26,882 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:15:26,883 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:15:26,883 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:15:26,884 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_153fdb51-a1ab-4556-85f0-7fc6537703e5/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2019-12-07 10:15:26,894 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:15:26,894 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:15:26,895 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 10:15:26,895 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 10:15:26,895 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 10:15:26,895 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 10:15:26,895 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 10:15:26,895 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 10:15:26,896 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 10:15:26,896 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 10:15:26,896 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 10:15:26,896 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 10:15:26,896 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 10:15:26,896 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 10:15:26,896 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 10:15:26,897 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 10:15:26,897 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 10:15:26,897 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:15:26,897 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 10:15:26,897 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 10:15:26,897 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 10:15:26,897 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 10:15:26,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:15:26,898 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 10:15:26,898 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 10:15:26,898 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 10:15:26,898 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 10:15:26,898 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 10:15:26,898 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 10:15:26,898 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:15:26,898 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:15:26,899 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 10:15:26,899 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 10:15:26,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:15:26,899 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:15:26,899 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 10:15:26,899 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 10:15:26,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 10:15:26,899 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:15:26,900 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 10:15:26,900 INFO L138 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/run_dir_153fdb51-a1ab-4556-85f0-7fc6537703e5/bin/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 -> 97106d24c91338d3a7f71605e6dcf95bdff73f56 [2019-12-07 10:15:26,998 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:15:27,005 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:15:27,007 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:15:27,008 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:15:27,009 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:15:27,009 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_153fdb51-a1ab-4556-85f0-7fc6537703e5/bin/utaipan/../../sv-benchmarks/c/ldv-memsafety/memset3_-write.c [2019-12-07 10:15:27,046 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_153fdb51-a1ab-4556-85f0-7fc6537703e5/bin/utaipan/data/1580b425c/ae1a776c10374923a19ecdc54fc16824/FLAG81a8c0532 [2019-12-07 10:15:27,493 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:15:27,494 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_153fdb51-a1ab-4556-85f0-7fc6537703e5/sv-benchmarks/c/ldv-memsafety/memset3_-write.c [2019-12-07 10:15:27,497 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_153fdb51-a1ab-4556-85f0-7fc6537703e5/bin/utaipan/data/1580b425c/ae1a776c10374923a19ecdc54fc16824/FLAG81a8c0532 [2019-12-07 10:15:27,505 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_153fdb51-a1ab-4556-85f0-7fc6537703e5/bin/utaipan/data/1580b425c/ae1a776c10374923a19ecdc54fc16824 [2019-12-07 10:15:27,507 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:15:27,508 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:15:27,509 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:15:27,509 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:15:27,511 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:15:27,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:15:27" (1/1) ... [2019-12-07 10:15:27,513 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44ac1a09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:15:27, skipping insertion in model container [2019-12-07 10:15:27,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:15:27" (1/1) ... [2019-12-07 10:15:27,518 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:15:27,528 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:15:27,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:15:27,631 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 10:15:27,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:15:27,690 INFO L208 MainTranslator]: Completed translation [2019-12-07 10:15:27,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:15:27 WrapperNode [2019-12-07 10:15:27,691 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:15:27,691 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 10:15:27,691 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 10:15:27,692 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 10:15:27,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:15:27" (1/1) ... [2019-12-07 10:15:27,702 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:15:27" (1/1) ... [2019-12-07 10:15:27,714 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 10:15:27,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 10:15:27,714 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 10:15:27,714 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 10:15:27,720 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:15:27" (1/1) ... [2019-12-07 10:15:27,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:15:27" (1/1) ... [2019-12-07 10:15:27,721 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:15:27" (1/1) ... [2019-12-07 10:15:27,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:15:27" (1/1) ... [2019-12-07 10:15:27,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:15:27" (1/1) ... [2019-12-07 10:15:27,726 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:15:27" (1/1) ... [2019-12-07 10:15:27,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:15:27" (1/1) ... [2019-12-07 10:15:27,727 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 10:15:27,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 10:15:27,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 10:15:27,728 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 10:15:27,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:15:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_153fdb51-a1ab-4556-85f0-7fc6537703e5/bin/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 [2019-12-07 10:15:27,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 10:15:27,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 10:15:27,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 10:15:27,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 10:15:27,904 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 10:15:27,904 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 10:15:27,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:15:27 BoogieIcfgContainer [2019-12-07 10:15:27,905 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 10:15:27,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 10:15:27,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 10:15:27,908 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 10:15:27,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 10:15:27" (1/3) ... [2019-12-07 10:15:27,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45319262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:15:27, skipping insertion in model container [2019-12-07 10:15:27,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:15:27" (2/3) ... [2019-12-07 10:15:27,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45319262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:15:27, skipping insertion in model container [2019-12-07 10:15:27,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:15:27" (3/3) ... [2019-12-07 10:15:27,912 INFO L109 eAbstractionObserver]: Analyzing ICFG memset3_-write.c [2019-12-07 10:15:27,918 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 10:15:27,922 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 10:15:27,933 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 10:15:27,950 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 10:15:27,950 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 10:15:27,950 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 10:15:27,950 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 10:15:27,950 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 10:15:27,950 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 10:15:27,950 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 10:15:27,950 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 10:15:27,961 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-12-07 10:15:27,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-12-07 10:15:27,966 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:15:27,966 INFO L410 BasicCegarLoop]: trace histogram [1, 1] [2019-12-07 10:15:27,966 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2019-12-07 10:15:27,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:15:27,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1553, now seen corresponding path program 1 times [2019-12-07 10:15:27,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 10:15:27,977 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604469721] [2019-12-07 10:15:27,978 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:15:28,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:15:28,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:15:28,074 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604469721] [2019-12-07 10:15:28,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:15:28,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 10:15:28,076 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126040357] [2019-12-07 10:15:28,079 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 10:15:28,079 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 10:15:28,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 10:15:28,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 10:15:28,090 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 3 states. [2019-12-07 10:15:28,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:15:28,110 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2019-12-07 10:15:28,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 10:15:28,111 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2019-12-07 10:15:28,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:15:28,116 INFO L225 Difference]: With dead ends: 8 [2019-12-07 10:15:28,117 INFO L226 Difference]: Without dead ends: 7 [2019-12-07 10:15:28,118 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 10:15:28,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-12-07 10:15:28,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-12-07 10:15:28,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-12-07 10:15:28,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-12-07 10:15:28,137 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 2 [2019-12-07 10:15:28,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:15:28,138 INFO L462 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-12-07 10:15:28,138 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 10:15:28,138 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-12-07 10:15:28,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-07 10:15:28,138 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:15:28,138 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-07 10:15:28,138 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2019-12-07 10:15:28,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:15:28,139 INFO L82 PathProgramCache]: Analyzing trace with hash 48179, now seen corresponding path program 1 times [2019-12-07 10:15:28,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 10:15:28,139 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570646382] [2019-12-07 10:15:28,139 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:15:28,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:15:28,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:15:28,168 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-12-07 10:15:28,168 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 10:15:28,175 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2019-12-07 10:15:28,176 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2019-12-07 10:15:28,176 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2019-12-07 10:15:28,176 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2019-12-07 10:15:28,176 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2019-12-07 10:15:28,176 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2019-12-07 10:15:28,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 10:15:28 BoogieIcfgContainer [2019-12-07 10:15:28,181 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 10:15:28,182 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 10:15:28,182 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 10:15:28,182 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 10:15:28,182 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:15:27" (3/4) ... [2019-12-07 10:15:28,184 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 10:15:28,184 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2019-12-07 10:15:28,184 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2019-12-07 10:15:28,185 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2019-12-07 10:15:28,185 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2019-12-07 10:15:28,185 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2019-12-07 10:15:28,185 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2019-12-07 10:15:28,208 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_153fdb51-a1ab-4556-85f0-7fc6537703e5/bin/utaipan/witness.graphml [2019-12-07 10:15:28,208 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 10:15:28,209 INFO L168 Benchmark]: Toolchain (without parser) took 700.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 944.8 MB in the beginning and 1.0 GB in the end (delta: -104.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:15:28,210 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:15:28,210 INFO L168 Benchmark]: CACSL2BoogieTranslator took 182.59 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -149.5 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. [2019-12-07 10:15:28,210 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.42 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:15:28,211 INFO L168 Benchmark]: Boogie Preprocessor took 13.51 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:15:28,211 INFO L168 Benchmark]: RCFGBuilder took 177.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2019-12-07 10:15:28,211 INFO L168 Benchmark]: TraceAbstraction took 276.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-12-07 10:15:28,212 INFO L168 Benchmark]: Witness Printer took 26.41 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:15:28,214 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 182.59 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -149.5 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 22.42 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.51 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 177.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 276.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Witness Printer took 26.41 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L26] struct ppp_comp_stats cstats ; [L27] void *point; [L28] point = (void *)(& cstats) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 3 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 4 SDslu, 0 SDs, 0 SdLazy, 7 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 1 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...