./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/StructInitialization.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0ab3fb2c-aa01-458a-acff-bbca171ca8a3/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0ab3fb2c-aa01-458a-acff-bbca171ca8a3/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0ab3fb2c-aa01-458a-acff-bbca171ca8a3/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0ab3fb2c-aa01-458a-acff-bbca171ca8a3/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/StructInitialization.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0ab3fb2c-aa01-458a-acff-bbca171ca8a3/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0ab3fb2c-aa01-458a-acff-bbca171ca8a3/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 09aab7ee021274328a236afeda27749aba561ee0 ................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 10:12:25,890 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 10:12:25,892 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 10:12:25,918 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 10:12:25,918 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 10:12:25,919 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 10:12:25,920 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 10:12:25,922 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 10:12:25,924 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 10:12:25,925 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 10:12:25,926 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 10:12:25,927 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 10:12:25,927 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 10:12:25,928 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 10:12:25,929 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 10:12:25,930 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 10:12:25,931 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 10:12:25,932 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 10:12:25,933 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 10:12:25,935 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 10:12:25,937 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 10:12:25,938 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 10:12:25,939 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 10:12:25,940 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 10:12:25,942 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 10:12:25,943 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 10:12:25,943 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 10:12:25,944 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 10:12:25,944 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 10:12:25,945 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 10:12:25,945 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 10:12:25,946 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 10:12:25,947 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 10:12:25,948 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 10:12:25,948 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 10:12:25,949 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 10:12:25,949 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 10:12:25,949 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 10:12:25,950 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 10:12:25,950 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 10:12:25,951 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 10:12:25,952 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0ab3fb2c-aa01-458a-acff-bbca171ca8a3/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2020-12-09 10:12:25,969 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 10:12:25,969 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 10:12:25,970 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 10:12:25,970 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 10:12:25,970 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 10:12:25,970 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 10:12:25,971 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 10:12:25,971 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 10:12:25,971 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 10:12:25,971 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 10:12:25,971 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 10:12:25,971 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 10:12:25,971 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 10:12:25,972 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 10:12:25,972 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 10:12:25,972 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-09 10:12:25,972 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-09 10:12:25,973 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 10:12:25,973 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 10:12:25,973 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-09 10:12:25,973 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 10:12:25,973 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 10:12:25,973 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 10:12:25,973 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-09 10:12:25,974 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-09 10:12:25,974 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-09 10:12:25,974 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 10:12:25,974 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 10:12:25,974 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 10:12:25,974 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 10:12:25,974 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 10:12:25,975 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 10:12:25,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 10:12:25,975 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 10:12:25,975 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 10:12:25,975 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 10:12:25,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 10:12:25,975 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 10:12:25,976 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 10:12:25,976 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_0ab3fb2c-aa01-458a-acff-bbca171ca8a3/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0ab3fb2c-aa01-458a-acff-bbca171ca8a3/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 09aab7ee021274328a236afeda27749aba561ee0 [2020-12-09 10:12:26,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 10:12:26,158 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 10:12:26,160 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 10:12:26,161 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 10:12:26,161 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 10:12:26,162 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0ab3fb2c-aa01-458a-acff-bbca171ca8a3/bin/utaipan/../../sv-benchmarks/c/ldv-memsafety/StructInitialization.c [2020-12-09 10:12:26,206 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0ab3fb2c-aa01-458a-acff-bbca171ca8a3/bin/utaipan/data/a32fb1645/32890feab8ac48f3bed473a046b2659c/FLAG6f78c022e [2020-12-09 10:12:26,617 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 10:12:26,618 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0ab3fb2c-aa01-458a-acff-bbca171ca8a3/sv-benchmarks/c/ldv-memsafety/StructInitialization.c [2020-12-09 10:12:26,622 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0ab3fb2c-aa01-458a-acff-bbca171ca8a3/bin/utaipan/data/a32fb1645/32890feab8ac48f3bed473a046b2659c/FLAG6f78c022e [2020-12-09 10:12:26,632 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0ab3fb2c-aa01-458a-acff-bbca171ca8a3/bin/utaipan/data/a32fb1645/32890feab8ac48f3bed473a046b2659c [2020-12-09 10:12:26,633 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 10:12:26,634 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 10:12:26,635 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 10:12:26,636 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 10:12:26,638 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 10:12:26,638 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:12:26" (1/1) ... [2020-12-09 10:12:26,640 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19b29343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:12:26, skipping insertion in model container [2020-12-09 10:12:26,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:12:26" (1/1) ... [2020-12-09 10:12:26,645 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 10:12:26,660 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 10:12:26,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 10:12:26,803 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 10:12:26,816 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 10:12:26,828 INFO L208 MainTranslator]: Completed translation [2020-12-09 10:12:26,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:12:26 WrapperNode [2020-12-09 10:12:26,829 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 10:12:26,829 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 10:12:26,830 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 10:12:26,830 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 10:12:26,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:12:26" (1/1) ... [2020-12-09 10:12:26,840 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:12:26" (1/1) ... [2020-12-09 10:12:26,853 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 10:12:26,853 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 10:12:26,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 10:12:26,854 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 10:12:26,859 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:12:26" (1/1) ... [2020-12-09 10:12:26,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:12:26" (1/1) ... [2020-12-09 10:12:26,861 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:12:26" (1/1) ... [2020-12-09 10:12:26,861 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:12:26" (1/1) ... [2020-12-09 10:12:26,866 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:12:26" (1/1) ... [2020-12-09 10:12:26,867 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:12:26" (1/1) ... [2020-12-09 10:12:26,868 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:12:26" (1/1) ... [2020-12-09 10:12:26,869 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 10:12:26,870 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 10:12:26,870 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 10:12:26,870 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 10:12:26,871 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:12:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0ab3fb2c-aa01-458a-acff-bbca171ca8a3/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 [2020-12-09 10:12:26,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 10:12:26,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 10:12:26,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 10:12:27,134 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 10:12:27,135 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-09 10:12:27,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:12:27 BoogieIcfgContainer [2020-12-09 10:12:27,141 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 10:12:27,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 10:12:27,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 10:12:27,146 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 10:12:27,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 10:12:26" (1/3) ... [2020-12-09 10:12:27,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61267d37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:12:27, skipping insertion in model container [2020-12-09 10:12:27,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:12:26" (2/3) ... [2020-12-09 10:12:27,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61267d37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:12:27, skipping insertion in model container [2020-12-09 10:12:27,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:12:27" (3/3) ... [2020-12-09 10:12:27,149 INFO L111 eAbstractionObserver]: Analyzing ICFG StructInitialization.c [2020-12-09 10:12:27,160 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 10:12:27,162 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 10:12:27,171 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 10:12:27,185 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 10:12:27,185 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-09 10:12:27,185 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 10:12:27,185 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 10:12:27,185 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 10:12:27,186 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 10:12:27,186 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 10:12:27,186 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 10:12:27,198 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2020-12-09 10:12:27,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-12-09 10:12:27,203 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:12:27,203 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2020-12-09 10:12:27,204 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-09 10:12:27,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:12:27,209 INFO L82 PathProgramCache]: Analyzing trace with hash 1182, now seen corresponding path program 1 times [2020-12-09 10:12:27,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 10:12:27,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212334386] [2020-12-09 10:12:27,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 10:12:27,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:12:27,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:12:27,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212334386] [2020-12-09 10:12:27,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:12:27,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-09 10:12:27,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617445563] [2020-12-09 10:12:27,328 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 10:12:27,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 10:12:27,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 10:12:27,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 10:12:27,340 INFO L87 Difference]: Start difference. First operand 4 states. Second operand 3 states. [2020-12-09 10:12:27,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:12:27,350 INFO L93 Difference]: Finished difference Result 3 states and 2 transitions. [2020-12-09 10:12:27,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 10:12:27,352 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2020-12-09 10:12:27,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:12:27,356 INFO L225 Difference]: With dead ends: 3 [2020-12-09 10:12:27,356 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 10:12:27,357 INFO L677 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 [2020-12-09 10:12:27,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 10:12:27,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 10:12:27,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 10:12:27,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 10:12:27,373 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2 [2020-12-09 10:12:27,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:12:27,373 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 10:12:27,373 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 10:12:27,373 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 10:12:27,373 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 10:12:27,374 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 10:12:27,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 10:12:27 BoogieIcfgContainer [2020-12-09 10:12:27,376 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 10:12:27,377 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 10:12:27,377 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 10:12:27,377 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 10:12:27,378 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:12:27" (3/4) ... [2020-12-09 10:12:27,380 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 10:12:27,389 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-09 10:12:27,389 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-09 10:12:27,389 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-09 10:12:27,424 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0ab3fb2c-aa01-458a-acff-bbca171ca8a3/bin/utaipan/witness.graphml [2020-12-09 10:12:27,424 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 10:12:27,425 INFO L168 Benchmark]: Toolchain (without parser) took 790.06 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 41.6 MB in the beginning and 49.1 MB in the end (delta: -7.5 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. [2020-12-09 10:12:27,426 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 75.5 MB. Free memory was 47.2 MB in the beginning and 47.2 MB in the end (delta: 29.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 10:12:27,426 INFO L168 Benchmark]: CACSL2BoogieTranslator took 193.39 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 41.5 MB in the beginning and 68.5 MB in the end (delta: -27.0 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-12-09 10:12:27,426 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.59 ms. Allocated memory is still 92.3 MB. Free memory was 68.5 MB in the beginning and 67.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 10:12:27,427 INFO L168 Benchmark]: Boogie Preprocessor took 15.62 ms. Allocated memory is still 92.3 MB. Free memory was 67.0 MB in the beginning and 65.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 10:12:27,427 INFO L168 Benchmark]: RCFGBuilder took 271.44 ms. Allocated memory is still 92.3 MB. Free memory was 65.4 MB in the beginning and 71.0 MB in the end (delta: -5.6 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.1 GB. [2020-12-09 10:12:27,428 INFO L168 Benchmark]: TraceAbstraction took 233.90 ms. Allocated memory is still 92.3 MB. Free memory was 70.7 MB in the beginning and 54.3 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-12-09 10:12:27,428 INFO L168 Benchmark]: Witness Printer took 46.73 ms. Allocated memory is still 92.3 MB. Free memory was 54.3 MB in the beginning and 49.1 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 10:12:27,430 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 75.5 MB. Free memory was 47.2 MB in the beginning and 47.2 MB in the end (delta: 29.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 193.39 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 41.5 MB in the beginning and 68.5 MB in the end (delta: -27.0 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 23.59 ms. Allocated memory is still 92.3 MB. Free memory was 68.5 MB in the beginning and 67.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 15.62 ms. Allocated memory is still 92.3 MB. Free memory was 67.0 MB in the beginning and 65.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 271.44 ms. Allocated memory is still 92.3 MB. Free memory was 65.4 MB in the beginning and 71.0 MB in the end (delta: -5.6 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 233.90 ms. Allocated memory is still 92.3 MB. Free memory was 70.7 MB in the beginning and 54.3 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Witness Printer took 46.73 ms. Allocated memory is still 92.3 MB. Free memory was 54.3 MB in the beginning and 49.1 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 93]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 SDtfs, 1 SDslu, 0 SDs, 0 SdLazy, 1 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=4occurred 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, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 1 ConstructedInterpolants, 0 QuantifiedInterpolants, 3 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...