./Ultimate.py --spec /storage/repos/svcomp/c/properties/valid-memsafety.prp --file /storage/repos/svcomp/c/list-ext-properties/test-0158_1_false-valid-free.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 91b1670e 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/list-ext-properties/test-0158_1_false-valid-free.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 138abb836fefa85c9c71aca16cbe8ef2e2e31ba9 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-free) --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 22:48:48,834 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 22:48:48,837 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 22:48:48,853 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 22:48:48,854 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 22:48:48,855 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 22:48:48,857 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 22:48:48,860 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 22:48:48,863 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 22:48:48,866 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 22:48:48,868 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 22:48:48,869 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 22:48:48,870 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 22:48:48,873 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 22:48:48,879 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 22:48:48,881 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 22:48:48,883 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 22:48:48,887 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 22:48:48,890 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 22:48:48,893 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 22:48:48,895 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 22:48:48,899 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 22:48:48,904 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 22:48:48,906 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 22:48:48,906 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 22:48:48,907 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 22:48:48,908 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 22:48:48,909 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 22:48:48,909 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 22:48:48,913 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 22:48:48,914 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 22:48:48,915 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 22:48:48,915 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 22:48:48,915 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 22:48:48,916 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 22:48:48,916 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 22:48:48,919 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-28 22:48:48,944 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 22:48:48,944 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 22:48:48,945 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 22:48:48,945 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 22:48:48,946 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 22:48:48,946 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 22:48:48,946 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 22:48:48,947 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 22:48:48,948 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 22:48:48,948 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 22:48:48,948 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 22:48:48,948 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 22:48:48,948 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 22:48:48,949 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-28 22:48:48,949 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-28 22:48:48,949 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-28 22:48:48,949 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 22:48:48,949 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 22:48:48,951 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 22:48:48,951 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 22:48:48,951 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 22:48:48,951 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 22:48:48,951 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 22:48:48,952 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 22:48:48,952 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 22:48:48,953 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 22:48:48,953 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 22:48:48,953 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 22:48:48,953 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 -> 138abb836fefa85c9c71aca16cbe8ef2e2e31ba9 [2018-11-28 22:48:49,019 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 22:48:49,036 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 22:48:49,042 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 22:48:49,044 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 22:48:49,045 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 22:48:49,045 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/list-ext-properties/test-0158_1_false-valid-free.i [2018-11-28 22:48:49,101 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6af5125a/fed40e71f65a4527aa0af186d098994a/FLAGba94461e7 [2018-11-28 22:48:49,664 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 22:48:49,667 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/list-ext-properties/test-0158_1_false-valid-free.i [2018-11-28 22:48:49,680 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6af5125a/fed40e71f65a4527aa0af186d098994a/FLAGba94461e7 [2018-11-28 22:48:49,905 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6af5125a/fed40e71f65a4527aa0af186d098994a [2018-11-28 22:48:49,909 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 22:48:49,911 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-28 22:48:49,912 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 22:48:49,912 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 22:48:49,917 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 22:48:49,918 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:48:49" (1/1) ... [2018-11-28 22:48:49,922 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e68a996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:48:49, skipping insertion in model container [2018-11-28 22:48:49,922 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:48:49" (1/1) ... [2018-11-28 22:48:49,931 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 22:48:49,982 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 22:48:50,392 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 22:48:50,401 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 22:48:50,446 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 22:48:50,519 INFO L195 MainTranslator]: Completed translation [2018-11-28 22:48:50,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:48:50 WrapperNode [2018-11-28 22:48:50,520 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 22:48:50,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 22:48:50,521 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 22:48:50,521 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 22:48:50,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:48:50" (1/1) ... [2018-11-28 22:48:50,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:48:50" (1/1) ... [2018-11-28 22:48:50,621 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:48:50" (1/1) ... [2018-11-28 22:48:50,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:48:50" (1/1) ... [2018-11-28 22:48:50,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:48:50" (1/1) ... [2018-11-28 22:48:50,646 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:48:50" (1/1) ... [2018-11-28 22:48:50,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:48:50" (1/1) ... [2018-11-28 22:48:50,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 22:48:50,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 22:48:50,656 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 22:48:50,656 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 22:48:50,657 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:48:50" (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 [2018-11-28 22:48:50,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 22:48:50,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 22:48:50,715 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 22:48:50,715 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-28 22:48:50,715 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-28 22:48:50,715 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-28 22:48:50,717 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-28 22:48:50,717 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-28 22:48:50,717 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-28 22:48:50,718 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-28 22:48:50,718 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-28 22:48:50,718 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-28 22:48:50,718 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-28 22:48:50,719 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-28 22:48:50,719 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-28 22:48:50,719 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-28 22:48:50,719 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-28 22:48:50,720 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-28 22:48:50,720 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-28 22:48:50,720 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-28 22:48:50,720 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-28 22:48:50,720 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-28 22:48:50,720 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-28 22:48:50,720 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-28 22:48:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-28 22:48:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-28 22:48:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-28 22:48:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-28 22:48:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-28 22:48:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-28 22:48:50,725 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-28 22:48:50,725 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-28 22:48:50,725 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-28 22:48:50,725 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-28 22:48:50,726 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-28 22:48:50,726 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-28 22:48:50,726 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-28 22:48:50,726 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-28 22:48:50,726 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-28 22:48:50,726 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-28 22:48:50,727 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-28 22:48:50,727 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-28 22:48:50,727 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-28 22:48:50,727 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-28 22:48:50,727 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-28 22:48:50,727 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-28 22:48:50,727 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-28 22:48:50,728 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-28 22:48:50,728 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-28 22:48:50,728 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-28 22:48:50,728 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-28 22:48:50,728 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-28 22:48:50,728 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-28 22:48:50,728 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-28 22:48:50,728 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-28 22:48:50,729 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-28 22:48:50,729 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-28 22:48:50,729 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-28 22:48:50,729 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-28 22:48:50,729 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-28 22:48:50,729 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-28 22:48:50,730 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-28 22:48:50,730 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-28 22:48:50,730 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-28 22:48:50,730 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-28 22:48:50,730 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-28 22:48:50,730 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-28 22:48:50,730 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-28 22:48:50,731 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-11-28 22:48:50,731 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-28 22:48:50,731 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-28 22:48:50,731 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-28 22:48:50,731 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-28 22:48:50,731 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-28 22:48:50,731 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-28 22:48:50,732 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-28 22:48:50,732 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-28 22:48:50,732 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-28 22:48:50,732 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-28 22:48:50,732 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-28 22:48:50,732 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-28 22:48:50,732 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-28 22:48:50,732 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-28 22:48:50,733 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-28 22:48:50,733 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-28 22:48:50,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-28 22:48:50,733 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-28 22:48:50,733 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-28 22:48:50,733 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-28 22:48:50,733 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-28 22:48:50,734 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-28 22:48:50,734 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-28 22:48:50,734 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-28 22:48:50,734 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-28 22:48:50,734 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-28 22:48:50,734 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-28 22:48:50,734 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-28 22:48:50,735 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-28 22:48:50,735 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-28 22:48:50,735 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-28 22:48:50,735 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-28 22:48:50,735 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-28 22:48:50,735 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-28 22:48:50,735 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-28 22:48:50,736 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-28 22:48:50,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-28 22:48:50,736 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 22:48:50,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 22:48:50,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-28 22:48:50,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-28 22:48:50,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 22:48:50,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 22:48:50,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 22:48:50,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 22:48:50,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 22:48:51,348 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 22:48:51,349 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 22:48:51,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:48:51 BoogieIcfgContainer [2018-11-28 22:48:51,349 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 22:48:51,350 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 22:48:51,350 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 22:48:51,354 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 22:48:51,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 10:48:49" (1/3) ... [2018-11-28 22:48:51,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@577ed0b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:48:51, skipping insertion in model container [2018-11-28 22:48:51,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:48:50" (2/3) ... [2018-11-28 22:48:51,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@577ed0b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:48:51, skipping insertion in model container [2018-11-28 22:48:51,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:48:51" (3/3) ... [2018-11-28 22:48:51,357 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0158_1_false-valid-free.i [2018-11-28 22:48:51,367 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 22:48:51,376 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 19 error locations. [2018-11-28 22:48:51,392 INFO L257 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2018-11-28 22:48:51,419 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 22:48:51,420 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 22:48:51,420 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-28 22:48:51,420 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 22:48:51,420 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 22:48:51,420 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 22:48:51,421 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 22:48:51,421 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 22:48:51,421 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 22:48:51,438 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-11-28 22:48:51,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 22:48:51,449 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:48:51,450 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:48:51,452 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr11REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr18ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION]=== [2018-11-28 22:48:51,459 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:48:51,459 INFO L82 PathProgramCache]: Analyzing trace with hash -1124152971, now seen corresponding path program 1 times [2018-11-28 22:48:51,461 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:48:51,462 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:48:51,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:48:51,515 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:48:51,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:48:51,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:48:51,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:48:51,679 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:48:51,679 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 22:48:51,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 22:48:51,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 22:48:51,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:48:51,698 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 3 states. [2018-11-28 22:48:51,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:48:51,864 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2018-11-28 22:48:51,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 22:48:51,866 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-28 22:48:51,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:48:51,875 INFO L225 Difference]: With dead ends: 36 [2018-11-28 22:48:51,876 INFO L226 Difference]: Without dead ends: 33 [2018-11-28 22:48:51,878 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:48:51,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-28 22:48:51,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-11-28 22:48:51,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-28 22:48:51,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2018-11-28 22:48:51,911 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 7 [2018-11-28 22:48:51,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:48:51,911 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2018-11-28 22:48:51,912 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 22:48:51,912 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2018-11-28 22:48:51,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 22:48:51,912 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:48:51,912 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:48:51,913 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr11REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr18ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION]=== [2018-11-28 22:48:51,913 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:48:51,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1124152970, now seen corresponding path program 1 times [2018-11-28 22:48:51,913 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:48:51,914 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:48:51,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:48:51,915 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:48:51,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:48:51,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:48:51,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:48:51,994 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:48:51,994 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 22:48:51,996 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 22:48:51,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 22:48:51,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:48:51,997 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 3 states. [2018-11-28 22:48:52,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:48:52,049 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2018-11-28 22:48:52,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 22:48:52,050 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-28 22:48:52,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:48:52,051 INFO L225 Difference]: With dead ends: 26 [2018-11-28 22:48:52,051 INFO L226 Difference]: Without dead ends: 26 [2018-11-28 22:48:52,051 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:48:52,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-11-28 22:48:52,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-11-28 22:48:52,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-28 22:48:52,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2018-11-28 22:48:52,055 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 7 [2018-11-28 22:48:52,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:48:52,056 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2018-11-28 22:48:52,056 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 22:48:52,056 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2018-11-28 22:48:52,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-28 22:48:52,057 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:48:52,057 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:48:52,057 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr11REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr18ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION]=== [2018-11-28 22:48:52,057 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:48:52,057 INFO L82 PathProgramCache]: Analyzing trace with hash 848412197, now seen corresponding path program 1 times [2018-11-28 22:48:52,058 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:48:52,058 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:48:52,059 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:48:52,059 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:48:52,059 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:48:52,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:48:52,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:48:52,276 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:48:52,276 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 22:48:52,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 22:48:52,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 22:48:52,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 22:48:52,277 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 5 states. [2018-11-28 22:48:52,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:48:52,423 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2018-11-28 22:48:52,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 22:48:52,425 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-11-28 22:48:52,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:48:52,425 INFO L225 Difference]: With dead ends: 25 [2018-11-28 22:48:52,426 INFO L226 Difference]: Without dead ends: 25 [2018-11-28 22:48:52,427 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-28 22:48:52,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-11-28 22:48:52,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-11-28 22:48:52,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-28 22:48:52,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2018-11-28 22:48:52,432 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 15 [2018-11-28 22:48:52,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:48:52,433 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2018-11-28 22:48:52,433 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 22:48:52,433 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2018-11-28 22:48:52,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-28 22:48:52,434 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:48:52,434 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:48:52,434 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr11REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr18ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION]=== [2018-11-28 22:48:52,434 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:48:52,436 INFO L82 PathProgramCache]: Analyzing trace with hash 530974401, now seen corresponding path program 1 times [2018-11-28 22:48:52,437 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:48:52,437 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:48:52,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:48:52,439 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:48:52,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:48:52,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:48:52,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:48:52,560 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:48:52,560 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 22:48:52,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 22:48:52,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 22:48:52,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 22:48:52,562 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 5 states. [2018-11-28 22:48:52,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:48:52,764 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2018-11-28 22:48:52,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 22:48:52,765 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2018-11-28 22:48:52,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:48:52,766 INFO L225 Difference]: With dead ends: 24 [2018-11-28 22:48:52,767 INFO L226 Difference]: Without dead ends: 24 [2018-11-28 22:48:52,768 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-28 22:48:52,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-11-28 22:48:52,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-11-28 22:48:52,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-28 22:48:52,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2018-11-28 22:48:52,771 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 16 [2018-11-28 22:48:52,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:48:52,772 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2018-11-28 22:48:52,772 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 22:48:52,772 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2018-11-28 22:48:52,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-28 22:48:52,773 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:48:52,773 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:48:52,773 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr11REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr18ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION]=== [2018-11-28 22:48:52,774 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:48:52,774 INFO L82 PathProgramCache]: Analyzing trace with hash -719662681, now seen corresponding path program 1 times [2018-11-28 22:48:52,774 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:48:52,774 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:48:52,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:48:52,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:48:52,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:48:52,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:48:52,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:48:52,903 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:48:52,903 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 22:48:52,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 22:48:52,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 22:48:52,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 22:48:52,905 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 6 states. [2018-11-28 22:48:53,059 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-11-28 22:48:53,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:48:53,331 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2018-11-28 22:48:53,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 22:48:53,332 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2018-11-28 22:48:53,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:48:53,333 INFO L225 Difference]: With dead ends: 23 [2018-11-28 22:48:53,333 INFO L226 Difference]: Without dead ends: 23 [2018-11-28 22:48:53,334 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-28 22:48:53,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-28 22:48:53,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-11-28 22:48:53,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-28 22:48:53,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2018-11-28 22:48:53,338 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 17 [2018-11-28 22:48:53,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:48:53,339 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2018-11-28 22:48:53,339 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 22:48:53,339 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2018-11-28 22:48:53,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-28 22:48:53,340 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:48:53,340 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:48:53,340 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr11REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr18ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION]=== [2018-11-28 22:48:53,340 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:48:53,340 INFO L82 PathProgramCache]: Analyzing trace with hash -834706557, now seen corresponding path program 1 times [2018-11-28 22:48:53,341 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:48:53,341 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:48:53,342 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:48:53,342 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:48:53,342 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:48:53,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 22:48:53,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 22:48:53,440 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 22:48:53,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 10:48:53 BoogieIcfgContainer [2018-11-28 22:48:53,472 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 22:48:53,472 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 22:48:53,473 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 22:48:53,473 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 22:48:53,474 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:48:51" (3/4) ... [2018-11-28 22:48:53,476 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 22:48:53,523 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 22:48:53,523 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 22:48:53,524 INFO L168 Benchmark]: Toolchain (without parser) took 3614.75 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 940.6 MB in the beginning and 964.5 MB in the end (delta: -23.8 MB). Peak memory consumption was 80.5 MB. Max. memory is 11.5 GB. [2018-11-28 22:48:53,526 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 22:48:53,526 INFO L168 Benchmark]: CACSL2BoogieTranslator took 608.31 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 919.1 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-11-28 22:48:53,527 INFO L168 Benchmark]: Boogie Preprocessor took 134.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 919.1 MB in the beginning and 1.1 GB in the end (delta: -173.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2018-11-28 22:48:53,528 INFO L168 Benchmark]: RCFGBuilder took 694.10 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: 38.8 MB). Peak memory consumption was 38.8 MB. Max. memory is 11.5 GB. [2018-11-28 22:48:53,529 INFO L168 Benchmark]: TraceAbstraction took 2121.74 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 964.5 MB in the end (delta: 88.9 MB). Peak memory consumption was 88.9 MB. Max. memory is 11.5 GB. [2018-11-28 22:48:53,530 INFO L168 Benchmark]: Witness Printer took 51.14 ms. Allocated memory is still 1.1 GB. Free memory is still 964.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 22:48:53,534 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 608.31 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 919.1 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 134.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 919.1 MB in the beginning and 1.1 GB in the end (delta: -173.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 694.10 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: 38.8 MB). Peak memory consumption was 38.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2121.74 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 964.5 MB in the end (delta: 88.9 MB). Peak memory consumption was 88.9 MB. Max. memory is 11.5 GB. * Witness Printer took 51.14 ms. Allocated memory is still 1.1 GB. Free memory is still 964.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 641]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L622-L629] union { void *p0; struct { char c[2]; int p1; int p2; } str; } data; [L630] data.p0 = malloc(37U) VAL [data={40:0}, malloc(37U)={43:0}] [L631] EXPR data.p0 VAL [data={40:0}, data.p0={43:0}, malloc(37U)={43:0}] [L631] void *ptr = data.p0; [L632] COND FALSE !(__VERIFIER_nondet_int()) [L635] data.str.p2 = 30 VAL [data={40:0}, malloc(37U)={43:0}, ptr={43:0}] [L637] EXPR data.str.p2 VAL [data={40:0}, data.str.p2=30, malloc(37U)={43:0}, ptr={43:0}] [L637] COND FALSE !(25 > data.str.p2) [L640] EXPR data.p0 VAL [data={40:0}, data.p0={43:0}, malloc(37U)={43:0}, ptr={43:0}] [L640] free(data.p0) VAL [data={40:0}, data.p0={43:0}, malloc(37U)={43:0}, ptr={43:0}] [L640] free(data.p0) [L641] free(ptr) VAL [data={40:0}, malloc(37U)={43:0}, ptr={43:0}] [L641] free(ptr) VAL [data={40:0}, malloc(37U)={43:0}, ptr={43:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 43 locations, 19 error locations. UNSAFE Result, 2.0s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 88 SDtfs, 111 SDslu, 94 SDs, 0 SdLazy, 104 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 80 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 2901 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...