./Ultimate.py --spec /storage/repos/svcomp/c/properties/valid-memsafety.prp --file /storage/repos/svcomp/c/array-memsafety/knapsack_alloca_unsafe_false-valid-deref.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/svcomp/c/array-memsafety/knapsack_alloca_unsafe_false-valid-deref.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e3c371bf2b529b286440432969843cbb456509fe ....................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-0ed9222-m [2019-01-13 21:55:47,582 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-13 21:55:47,585 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-13 21:55:47,601 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-13 21:55:47,602 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-13 21:55:47,603 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-13 21:55:47,606 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-13 21:55:47,608 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-13 21:55:47,612 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-13 21:55:47,614 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-13 21:55:47,616 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-13 21:55:47,617 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-13 21:55:47,618 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-13 21:55:47,627 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-13 21:55:47,628 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-13 21:55:47,629 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-13 21:55:47,631 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-13 21:55:47,634 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-13 21:55:47,637 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-13 21:55:47,640 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-13 21:55:47,643 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-13 21:55:47,647 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-13 21:55:47,651 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-13 21:55:47,652 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-13 21:55:47,652 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-13 21:55:47,653 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-13 21:55:47,654 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-13 21:55:47,656 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-13 21:55:47,658 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-13 21:55:47,660 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-13 21:55:47,662 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-13 21:55:47,663 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-13 21:55:47,663 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-13 21:55:47,663 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-13 21:55:47,666 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-13 21:55:47,668 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-13 21:55:47,669 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-01-13 21:55:47,690 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-13 21:55:47,691 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-13 21:55:47,692 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-13 21:55:47,695 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-13 21:55:47,696 INFO L133 SettingsManager]: * Use SBE=true [2019-01-13 21:55:47,696 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-13 21:55:47,696 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-13 21:55:47,696 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-13 21:55:47,697 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-13 21:55:47,697 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-13 21:55:47,697 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-13 21:55:47,697 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-01-13 21:55:47,697 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2019-01-13 21:55:47,697 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-01-13 21:55:47,698 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-13 21:55:47,699 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-13 21:55:47,700 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-13 21:55:47,700 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-13 21:55:47,700 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-13 21:55:47,700 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-13 21:55:47,700 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-13 21:55:47,702 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-13 21:55:47,703 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-13 21:55:47,703 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-13 21:55:47,703 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-13 21:55:47,703 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-13 21:55:47,704 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> Automizer 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 -> e3c371bf2b529b286440432969843cbb456509fe [2019-01-13 21:55:47,760 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-13 21:55:47,776 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-13 21:55:47,780 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-13 21:55:47,782 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-13 21:55:47,782 INFO L276 PluginConnector]: CDTParser initialized [2019-01-13 21:55:47,783 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-memsafety/knapsack_alloca_unsafe_false-valid-deref.i [2019-01-13 21:55:47,851 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07c95cb30/f2aaa4f8c6d246449dbcd05b428ae7f4/FLAG21eaf7b61 [2019-01-13 21:55:48,318 INFO L307 CDTParser]: Found 1 translation units. [2019-01-13 21:55:48,319 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/array-memsafety/knapsack_alloca_unsafe_false-valid-deref.i [2019-01-13 21:55:48,333 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07c95cb30/f2aaa4f8c6d246449dbcd05b428ae7f4/FLAG21eaf7b61 [2019-01-13 21:55:48,650 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07c95cb30/f2aaa4f8c6d246449dbcd05b428ae7f4 [2019-01-13 21:55:48,653 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-13 21:55:48,654 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-01-13 21:55:48,655 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-13 21:55:48,655 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-13 21:55:48,659 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-13 21:55:48,659 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.01 09:55:48" (1/1) ... [2019-01-13 21:55:48,662 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4998b6ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:55:48, skipping insertion in model container [2019-01-13 21:55:48,663 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.01 09:55:48" (1/1) ... [2019-01-13 21:55:48,670 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-13 21:55:48,707 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-13 21:55:49,091 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-13 21:55:49,103 INFO L191 MainTranslator]: Completed pre-run [2019-01-13 21:55:49,150 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-13 21:55:49,206 INFO L195 MainTranslator]: Completed translation [2019-01-13 21:55:49,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:55:49 WrapperNode [2019-01-13 21:55:49,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-13 21:55:49,207 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-13 21:55:49,207 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-13 21:55:49,207 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-13 21:55:49,294 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:55:49" (1/1) ... [2019-01-13 21:55:49,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:55:49" (1/1) ... [2019-01-13 21:55:49,309 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:55:49" (1/1) ... [2019-01-13 21:55:49,309 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:55:49" (1/1) ... [2019-01-13 21:55:49,325 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:55:49" (1/1) ... [2019-01-13 21:55:49,330 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:55:49" (1/1) ... [2019-01-13 21:55:49,334 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:55:49" (1/1) ... [2019-01-13 21:55:49,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-13 21:55:49,341 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-13 21:55:49,341 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-13 21:55:49,341 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-13 21:55:49,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:55:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-01-13 21:55:49,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-01-13 21:55:49,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-13 21:55:49,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-01-13 21:55:49,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-01-13 21:55:49,393 INFO L138 BoogieDeclarations]: Found implementation of procedure knapsack [2019-01-13 21:55:49,393 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-01-13 21:55:49,393 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-01-13 21:55:49,393 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-01-13 21:55:49,394 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-01-13 21:55:49,394 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-01-13 21:55:49,394 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-01-13 21:55:49,394 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-01-13 21:55:49,394 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-01-13 21:55:49,394 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-01-13 21:55:49,395 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-01-13 21:55:49,395 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-01-13 21:55:49,395 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-01-13 21:55:49,395 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-01-13 21:55:49,395 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-01-13 21:55:49,395 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-01-13 21:55:49,396 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-01-13 21:55:49,397 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-01-13 21:55:49,397 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-01-13 21:55:49,397 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-01-13 21:55:49,397 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-01-13 21:55:49,397 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-01-13 21:55:49,398 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-01-13 21:55:49,398 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-01-13 21:55:49,398 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-01-13 21:55:49,398 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-01-13 21:55:49,399 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-01-13 21:55:49,399 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-01-13 21:55:49,399 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-01-13 21:55:49,399 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-01-13 21:55:49,399 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-01-13 21:55:49,399 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-01-13 21:55:49,399 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-01-13 21:55:49,400 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-01-13 21:55:49,400 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-01-13 21:55:49,400 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-01-13 21:55:49,400 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-01-13 21:55:49,400 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-01-13 21:55:49,400 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-01-13 21:55:49,400 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-01-13 21:55:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-01-13 21:55:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-01-13 21:55:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-01-13 21:55:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-01-13 21:55:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-01-13 21:55:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-01-13 21:55:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-01-13 21:55:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-01-13 21:55:49,402 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-01-13 21:55:49,402 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-01-13 21:55:49,402 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-01-13 21:55:49,402 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-01-13 21:55:49,402 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-01-13 21:55:49,402 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-01-13 21:55:49,402 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-01-13 21:55:49,402 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-01-13 21:55:49,403 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-01-13 21:55:49,403 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-01-13 21:55:49,403 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-01-13 21:55:49,403 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-01-13 21:55:49,403 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-01-13 21:55:49,403 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-01-13 21:55:49,403 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-01-13 21:55:49,403 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-01-13 21:55:49,404 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-01-13 21:55:49,404 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-01-13 21:55:49,404 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-01-13 21:55:49,404 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-01-13 21:55:49,404 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-01-13 21:55:49,404 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-01-13 21:55:49,404 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-01-13 21:55:49,405 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-01-13 21:55:49,405 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-01-13 21:55:49,405 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-01-13 21:55:49,405 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-01-13 21:55:49,405 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-01-13 21:55:49,405 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-01-13 21:55:49,405 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-01-13 21:55:49,405 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-01-13 21:55:49,406 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-01-13 21:55:49,406 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-01-13 21:55:49,407 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-01-13 21:55:49,407 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-01-13 21:55:49,407 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-01-13 21:55:49,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-01-13 21:55:49,407 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-01-13 21:55:49,407 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-01-13 21:55:49,407 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-01-13 21:55:49,408 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-01-13 21:55:49,408 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-01-13 21:55:49,408 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-01-13 21:55:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-01-13 21:55:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-01-13 21:55:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-01-13 21:55:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-01-13 21:55:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-01-13 21:55:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-01-13 21:55:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-01-13 21:55:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-01-13 21:55:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-01-13 21:55:49,410 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-01-13 21:55:49,410 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-01-13 21:55:49,410 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-01-13 21:55:49,410 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-01-13 21:55:49,410 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-01-13 21:55:49,410 INFO L130 BoogieDeclarations]: Found specification of procedure knapsack [2019-01-13 21:55:49,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-13 21:55:49,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-13 21:55:49,410 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-01-13 21:55:49,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-13 21:55:49,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-13 21:55:49,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-01-13 21:55:49,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-13 21:55:50,101 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-13 21:55:50,101 INFO L286 CfgBuilder]: Removed 2 assue(true) statements. [2019-01-13 21:55:50,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 09:55:50 BoogieIcfgContainer [2019-01-13 21:55:50,103 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-13 21:55:50,104 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-13 21:55:50,104 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-13 21:55:50,108 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-13 21:55:50,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.01 09:55:48" (1/3) ... [2019-01-13 21:55:50,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7221a756 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.01 09:55:50, skipping insertion in model container [2019-01-13 21:55:50,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:55:49" (2/3) ... [2019-01-13 21:55:50,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7221a756 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.01 09:55:50, skipping insertion in model container [2019-01-13 21:55:50,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 09:55:50" (3/3) ... [2019-01-13 21:55:50,113 INFO L112 eAbstractionObserver]: Analyzing ICFG knapsack_alloca_unsafe_false-valid-deref.i [2019-01-13 21:55:50,124 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-13 21:55:50,134 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 21 error locations. [2019-01-13 21:55:50,152 INFO L257 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2019-01-13 21:55:50,180 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-13 21:55:50,181 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-13 21:55:50,181 INFO L383 AbstractCegarLoop]: Hoare is false [2019-01-13 21:55:50,182 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-13 21:55:50,182 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-13 21:55:50,182 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-13 21:55:50,183 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-13 21:55:50,183 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-13 21:55:50,183 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-13 21:55:50,201 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2019-01-13 21:55:50,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-01-13 21:55:50,212 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 21:55:50,213 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 21:55:50,216 INFO L423 AbstractCegarLoop]: === Iteration 1 === [knapsackErr9REQUIRES_VIOLATION, knapsackErr19REQUIRES_VIOLATION, knapsackErr8REQUIRES_VIOLATION, knapsackErr7REQUIRES_VIOLATION, knapsackErr18REQUIRES_VIOLATION, knapsackErr1REQUIRES_VIOLATION, knapsackErr12REQUIRES_VIOLATION, knapsackErr11REQUIRES_VIOLATION, knapsackErr0REQUIRES_VIOLATION, knapsackErr10REQUIRES_VIOLATION, knapsackErr4REQUIRES_VIOLATION, knapsackErr3REQUIRES_VIOLATION, knapsackErr14REQUIRES_VIOLATION, knapsackErr13REQUIRES_VIOLATION, knapsackErr2REQUIRES_VIOLATION, knapsackErr17REQUIRES_VIOLATION, knapsackErr6REQUIRES_VIOLATION, knapsackErr5REQUIRES_VIOLATION, knapsackErr16REQUIRES_VIOLATION, knapsackErr15REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-01-13 21:55:50,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 21:55:50,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1069516704, now seen corresponding path program 1 times [2019-01-13 21:55:50,225 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 21:55:50,226 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 21:55:50,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:55:50,283 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:55:50,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:55:50,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 21:55:50,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 21:55:50,575 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 21:55:50,576 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-13 21:55:50,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-13 21:55:50,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-13 21:55:50,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-01-13 21:55:50,594 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 5 states. [2019-01-13 21:55:50,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 21:55:50,983 INFO L93 Difference]: Finished difference Result 53 states and 58 transitions. [2019-01-13 21:55:50,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-13 21:55:50,986 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-01-13 21:55:50,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 21:55:50,997 INFO L225 Difference]: With dead ends: 53 [2019-01-13 21:55:50,997 INFO L226 Difference]: Without dead ends: 50 [2019-01-13 21:55:50,999 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-01-13 21:55:51,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-01-13 21:55:51,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2019-01-13 21:55:51,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2019-01-13 21:55:51,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2019-01-13 21:55:51,043 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 14 [2019-01-13 21:55:51,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 21:55:51,044 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2019-01-13 21:55:51,044 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-13 21:55:51,044 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2019-01-13 21:55:51,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-01-13 21:55:51,045 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 21:55:51,045 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 21:55:51,046 INFO L423 AbstractCegarLoop]: === Iteration 2 === [knapsackErr9REQUIRES_VIOLATION, knapsackErr19REQUIRES_VIOLATION, knapsackErr8REQUIRES_VIOLATION, knapsackErr7REQUIRES_VIOLATION, knapsackErr18REQUIRES_VIOLATION, knapsackErr1REQUIRES_VIOLATION, knapsackErr12REQUIRES_VIOLATION, knapsackErr11REQUIRES_VIOLATION, knapsackErr0REQUIRES_VIOLATION, knapsackErr10REQUIRES_VIOLATION, knapsackErr4REQUIRES_VIOLATION, knapsackErr3REQUIRES_VIOLATION, knapsackErr14REQUIRES_VIOLATION, knapsackErr13REQUIRES_VIOLATION, knapsackErr2REQUIRES_VIOLATION, knapsackErr17REQUIRES_VIOLATION, knapsackErr6REQUIRES_VIOLATION, knapsackErr5REQUIRES_VIOLATION, knapsackErr16REQUIRES_VIOLATION, knapsackErr15REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-01-13 21:55:51,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 21:55:51,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1069516703, now seen corresponding path program 1 times [2019-01-13 21:55:51,046 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 21:55:51,047 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 21:55:51,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:55:51,050 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:55:51,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:55:51,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-13 21:55:51,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-13 21:55:51,243 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-13 21:55:51,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.01 09:55:51 BoogieIcfgContainer [2019-01-13 21:55:51,284 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-13 21:55:51,284 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-13 21:55:51,284 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-13 21:55:51,285 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-13 21:55:51,285 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 09:55:50" (3/4) ... [2019-01-13 21:55:51,291 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2019-01-13 21:55:51,374 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-13 21:55:51,375 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-13 21:55:51,376 INFO L168 Benchmark]: Toolchain (without parser) took 2722.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 951.3 MB in the beginning and 995.0 MB in the end (delta: -43.7 MB). Peak memory consumption was 53.3 MB. Max. memory is 11.5 GB. [2019-01-13 21:55:51,378 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-13 21:55:51,378 INFO L168 Benchmark]: CACSL2BoogieTranslator took 551.74 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 929.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2019-01-13 21:55:51,379 INFO L168 Benchmark]: Boogie Preprocessor took 133.50 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -153.1 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. [2019-01-13 21:55:51,386 INFO L168 Benchmark]: RCFGBuilder took 762.50 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: 46.8 MB). Peak memory consumption was 46.8 MB. Max. memory is 11.5 GB. [2019-01-13 21:55:51,389 INFO L168 Benchmark]: TraceAbstraction took 1179.98 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 995.0 MB in the end (delta: 41.2 MB). Peak memory consumption was 41.2 MB. Max. memory is 11.5 GB. [2019-01-13 21:55:51,390 INFO L168 Benchmark]: Witness Printer took 90.49 ms. Allocated memory is still 1.1 GB. Free memory is still 995.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-13 21:55:51,399 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 551.74 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 929.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 133.50 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -153.1 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 762.50 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: 46.8 MB). Peak memory consumption was 46.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1179.98 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 995.0 MB in the end (delta: 41.2 MB). Peak memory consumption was 41.2 MB. Max. memory is 11.5 GB. * Witness Printer took 90.49 ms. Allocated memory is still 1.1 GB. Free memory is still 995.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 545]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L555] int N = __VERIFIER_nondet_int(); [L556] int M = __VERIFIER_nondet_int(); [L557] COND TRUE N < 1 [L558] N = 1 VAL [M=0, N=1] [L560] COND TRUE M < 1 [L561] M = 1 VAL [M=1, N=1] [L563] int *size = (int*) __builtin_alloca (N * sizeof(int)); [L564] int *val = (int*) __builtin_alloca (N * sizeof(int)); [L565] int *cost = (int*) __builtin_alloca (M * sizeof(int)); [L566] int *best = (int*) __builtin_alloca (M * sizeof(int)); VAL [__builtin_alloca (M * sizeof(int))={-3:0}, __builtin_alloca (M * sizeof(int))={1:0}, __builtin_alloca (N * sizeof(int))={-2:0}, __builtin_alloca (N * sizeof(int))={-1:0}, best={-3:0}, cost={1:0}, M=1, N=1, size={-2:0}, val={-1:0}] [L567] CALL knapsack(size, val, N, cost, best, M) VAL [\old(M)=1, \old(N)=1, best={-3:0}, cost={1:0}, size={-2:0}, val={-1:0}] [L542] int i, j; [L543] j = 1 VAL [\old(M)=1, \old(N)=1, best={-3:0}, best={-3:0}, cost={1:0}, cost={1:0}, j=1, M=1, N=1, size={-2:0}, size={-2:0}, val={-1:0}, val={-1:0}] [L543] COND TRUE j <= N [L544] i = 1 VAL [\old(M)=1, \old(N)=1, best={-3:0}, best={-3:0}, cost={1:0}, cost={1:0}, i=1, j=1, M=1, N=1, size={-2:0}, size={-2:0}, val={-1:0}, val={-1:0}] [L544] COND TRUE i <= M VAL [\old(M)=1, \old(N)=1, best={-3:0}, best={-3:0}, cost={1:0}, cost={1:0}, i=1, j=1, M=1, N=1, size={-2:0}, size={-2:0}, val={-1:0}, val={-1:0}] [L545] size[j] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 62 locations, 21 error locations. UNSAFE Result, 1.1s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 35 SDtfs, 77 SDslu, 52 SDs, 0 SdLazy, 62 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 429 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...